def __init__(self,
parent,
lat=32.10932741542229,
lon=34.89818882620658,
zoom=15):
super().__init__(parent)
Projection.__init__(self)
Tiles.__init__(self, self.tileRetrieved)
self.recentre(lat, lon, zoom)
self.drag = False
self.dragStartCoords = (0, 0)
self.layers = []
self.Bind(wx.EVT_SIZE, self.sizeChanged)
self.Bind(wx.EVT_PAINT, self.updatePanel)
self.Bind(wx.EVT_MOUSEWHEEL, self.scroll_event)
self.Bind(wx.EVT_LEFT_DOWN, self.click)
self.Bind(wx.EVT_LEFT_UP, self.release)
self.Bind(wx.EVT_MOTION, self.mousemove)
self.Bind(wx.EVT_MOUSEWHEEL, self.scroll_event)
size = self.GetSize()
self.mousePosition = wx.Point(size.GetWidth() / 2,
size.GetHeight() / 2)
self.SetBackgroundStyle(wx.BG_STYLE_PAINT)
def get_world_size(minlat, minlon, maxlat, maxlon):
"""Return the world size in X-Z coordinates."""
x1, z1 = Projection.project(minlon, minlat)
x2, z2 = Projection.project(maxlon, maxlat)
xSize = math.fabs(x2 - x1)
zSize = math.fabs(z2 - z1)
return (xSize, zSize)
def select_clusters(img, clusters, origin):
"""Return 4 borderlines that bound the table"""
if len(clusters) < 4:
return clusters, None
img_hsv = cv2.cvtColor(img, cv2.COLOR_BGR2HSV)
in_frame = lambda x, y: 0 <= x < img_hsv.shape[
1] and 0 <= y < img_hsv.shape[0]
attempt = 1
for quadruple in combinations(clusters, 4):
quadruple.sort()
borders = [lines[0] for lines in quadruple]
corners = get_corners(borders, origin)
slope = horizon_slope(borders)
if corners and slope < 0.3:
# average color in the central area
mean_color, stddev = mean_deviation(img_hsv, corners,
green_mask(img))
for i in range(4):
for line in reversed(quadruple[i]):
borders[i] = line
corners = get_corners(borders, origin)
if not all(in_frame(*c) for c in corners):
continue
pr = Projection(corners, origin)
inner_strip, outer_strip = pr.border_neighbourhoods(i - 1)
inner_color, inner_dev = mean_deviation(
img_hsv, inner_strip)
outer_color, outer_dev = mean_deviation(
img_hsv, outer_strip)
inner_diff = np.abs(inner_color - mean_color)
outer_diff = np.abs(outer_color - mean_color)
if TEST:
imgt = img.copy()
for line in borders:
draw_line(imgt, line, origin)
draw_polygon(imgt, inner_strip)
draw_polygon(imgt, outer_strip)
cv2.imwrite(
'data/lines/steps/%s_%02d.jpg' %
(filename.replace('.', ''), attempt), imgt)
attempt += 1
print('in %s out %s ind %s outd %s' %
(inner_diff, outer_diff, inner_dev, outer_dev))
if (inner_diff[0] < 10 and inner_dev[0] < 20
and max(inner_diff) < 100
and (outer_diff[0] > 10 or outer_dev[0] > 20)):
if TEST:
print('v')
break
else: # loop finished without break, no i'th borderline found
break # stop search
else: # search was not stopped, all borderlines found
clusters = [[line for line in lines if line[1] < border[1]]
for lines, border in zip(quadruple, borders)]
return clusters, borders
return clusters, None
def center_coordinates(minlat, minlon, maxlat, maxlon):
"""Center the coordinate around (0,0) and returns the offsets between earth and local world coordinate."""
x1, z1 = Projection.project(minlon, minlat)
x2, z2 = Projection.project(maxlon, maxlat)
xOffset = (x1 + x2) / 2
zOffset = (z1 + z2) / 2
for osmid in OSMCoord.coordDictionnary:
# inverse X, because OSM and Webots X are inversed
OSMCoord.coordDictionnary[osmid].x = -OSMCoord.coordDictionnary[osmid].x + xOffset
OSMCoord.coordDictionnary[osmid].z = OSMCoord.coordDictionnary[osmid].z - zOffset
return xOffset, zOffset
def __init__(self, scale=1.0, fov=97.62815):
# 106.2602 comes from 2*atan(4/3), to give the 90 deg inner image a dim of 3/4 of the full dim.
# 97.62815 comes from 2*atan(8/7), for 7/8 image as inner 90 deg
self.scale = scale
self.proj = {
'forward': Projection(xrot=0.0, yrot=0.0, fov=fov, aspect=1.0),
'left': Projection(xrot=0.0, yrot=-90.0, fov=fov, aspect=1.0),
'right': Projection(xrot=0.0, yrot=90.0, fov=fov, aspect=1.0),
'up': Projection(xrot=-90.0, yrot=0.0, fov=fov, aspect=1.0),
'down': Projection(xrot=90.0, yrot=0.0, fov=fov, aspect=1.0)
}
def create_projection():
database_url = os.environ[DATABASE_URL]
database_replica_set = os.environ[DATABASE_REPLICA_SET]
database_name = os.environ[DATABASE_NAME]
parent_filename = request.json[PARENT_FILENAME_NAME]
projection_filename = request.json[PROJECTION_FILENAME_NAME]
projection_fields = request.json[FIELDS_NAME]
database = Database(
database_url,
database_replica_set,
os.environ[DATABASE_PORT],
database_name,
)
request_validator = UserRequest(database)
request_errors = analyse_request_errors(request_validator, parent_filename,
projection_filename,
projection_fields)
if request_errors is not None:
return request_errors
database_url_input = Database.collection_database_url(
database_url,
database_name,
parent_filename,
database_replica_set,
)
database_url_output = Database.collection_database_url(
database_url,
database_name,
projection_filename,
database_replica_set,
)
metadata_creator = Metadata(database)
projection = Projection(metadata_creator, database_url_input,
database_url_output)
projection.create(parent_filename, projection_filename, projection_fields)
return (
jsonify({
MESSAGE_RESULT:
MICROSERVICE_URI_GET + projection_filename +
MICROSERVICE_URI_GET_PARAMS
}),
HTTP_STATUS_CODE_SUCCESS_CREATED,
)
def find_projection(self, proj_id, movie_id):
chosen_proj = Projection()
chosen_movie = self.find_movie(movie_id)
for projection in chosen_movie.projections:
if projection.id == proj_id:
chosen_proj = projection
return chosen_proj
def add_projection(self, movie_id, type, date, time):
projection = Projection(movie_id=movie_id,
type=type,
date=date,
time=time)
self.session.add(projection)
self.session.commit()
def add_projections(self, data_for_projections):
projections = []
for projection in data_for_projections:
projections.append(
Projection(type=projection[0],
dateTime=projection[1],
movie_id=projection[2]))
def add_projection(self):
type_ = input('type>')
date_ = input('date>')
time_ = input('time>')
movie_id = int(input('movie_id'))
new_projection = Projection(type_=type_, date_=date_, time_=time_, movie_id=movie_id)
self.__session.add(new_projection)
self.__session.commit()
def add(osmid, long, lat):
"""Add a new coordinate to the list from longitude latitude."""
coord = OSMCoord()
coord.OSMID = osmid
coord.long = long
coord.lat = lat
coord.x, coord.z = Projection.project(coord.long, coord.lat)
OSMCoord.coordDictionnary[osmid] = coord
def add(osmid, long, lat, tags):
"""Add a new node to the list from longitude latitude."""
node = OSMNode()
node.OSMID = osmid
node.long = long
node.lat = lat
node.x, node.z = Projection.project(node.long, node.lat)
node.tags = tags
OSMNode.nodeDictionnary[osmid] = node
def read_from_file(self, filename):
# Open data file for reading
# File must be kept open, otherwise GDAL methods segfault.
fid = self.fid = gdal.Open(filename, gdal.GA_ReadOnly)
if fid is None:
msg = 'Could not open file %s' % filename
raise Exception(msg)
# Record raster metadata from file
basename, ext = os.path.splitext(filename)
# If file is ASCII, check that projection is around.
# GDAL does not check this nicely, so it is worth an
# error message
if ext == '.asc':
try:
open(basename + '.prj')
except IOError:
msg = ('Projection file not found for %s. You must supply '
'a projection file with extension .prj' % filename)
raise RuntimeError(msg)
# Look for any keywords
self.keywords = read_keywords(basename + '.keywords')
# Determine name
if 'title' in self.keywords:
rastername = self.keywords['title']
else:
# Use basename without leading directories as name
rastername = os.path.split(basename)[-1]
self.name = rastername
self.filename = filename
self.projection = Projection(self.fid.GetProjection())
self.geotransform = self.fid.GetGeoTransform()
self.columns = fid.RasterXSize
self.rows = fid.RasterYSize
self.number_of_bands = fid.RasterCount
# Assume that file contains all data in one band
msg = 'Only one raster band currently allowed'
if self.number_of_bands > 1:
msg = ('WARNING: Number of bands in %s are %i. '
'Only the first band will currently be '
'used.' % (filename, self.number_of_bands))
# FIXME(Ole): Let us use python warnings here
raise Exception(msg)
# Get first band.
band = self.band = fid.GetRasterBand(1)
if band is None:
msg = 'Could not read raster band from %s' % filename
raise Exception(msg)
def calc_brightness(self):
"""
Project the electron number density or gas mass density profile
to calculate the 2D surface brightness profile.
"""
if self.cf_radius is None or self.cf_value is None:
raise ValueError("cooling function profile missing")
if self.cf_spline is None:
self.fit_spline(spline="cooling_function", log10=[])
#
ne = self.calc_density_electron()
# flux per unit volume
cf_new = self.eval_spline(spline="cooling_function", x=self.r)
flux = cf_new * ne**2 / AstroParams.ratio_ne_np
# project the 3D flux into 2D brightness
rout = (self.r + self.r_err) * au.kpc.to(au.cm)
projector = Projection(rout)
brightness = projector.project(flux)
return brightness
def __init__(self, id, name, rating):
proj = Movie.cursor.execute("SELECT * FROM projections")
self.id = id
self.name = name
self.rating = rating
self.projections = []
for row in proj:
if row[1] == self.id:
self.projections.append(
Projection(row[0], row[1], row[2], row[3], row[4]))
def check0(self, ch, w, debug=False):
env = Env(w, [])
visitor = Projection()
visitor.execute(ch, env, debug)
chor = visitor.choreography
vectorize(chor, w)
checker = CompatibilityCheck(chor, w)
checker.localChoiceChecks()
checker.generateTotalGuardsChecks()
checker.computePreds(debug)
checker.generateCompatibilityChecks(debug)
for i in range(0, len(checker.vcs)):
vc = checker.vcs[i]
if not vc.discharge(debug=debug):
print(i, "inFP", vc.title)
if vc.hasModel():
print(vc.modelStr())
return False
return True
def print_header(file, minlat, minlon, maxlat, maxlon, elevation=None):
"""Print the 'WorldInfo', 'Viewpoint', 'TexturedBackground', 'TexturedBackgroundLight' and 'Floor' nodes."""
xSize, zSize = get_world_size(minlat=minlat,
minlon=minlon,
maxlat=maxlat,
maxlon=maxlon)
file.write("#VRML_SIM R2021a utf8\n")
file.write("WorldInfo {\n")
file.write(" info [\n")
file.write(
" \"World generated using the Open Street Map to Webots importer\"\n"
)
file.write(" \"Author: David Mansolino <*****@*****.**>\"\n")
file.write(" ]\n")
file.write(" coordinateSystem \"NUE\"\n")
longitude = (float(maxlon) + float(minlon)) / 2
latitude = (float(maxlat) + float(minlat)) / 2
x, z = Projection.project(longitude, latitude)
height = 0
if elevation is not None:
height = elevation.interpolate_height(x, z)
file.write(" gpsCoordinateSystem \"WGS84\"\n")
file.write(" gpsReference " + str(latitude) + " " + str(longitude) + " " +
str(height) + "\n")
file.write(" lineScale " + str(round(max(xSize, zSize) / 200.0)) + "\n")
file.write("}\n")
file.write("Viewpoint {\n")
file.write(" orientation 0.305 0.902 0.305 4.609\n")
position = round(xSize * math.cos(0.785) * 1.5 +
zSize * math.cos(0.785) * 1.5)
file.write(" position " + str(-position * 1.25) + " " + str(position) +
" 0\n")
file.write(" near 3\n")
file.write("}\n")
file.write("TexturedBackground {\n")
file.write("}\n")
file.write("TexturedBackgroundLight {\n")
file.write("}\n")
if elevation is None:
file.write("Floor {\n")
file.write(" translation 0 -0.02 0\n")
file.write(" size " + str(round(1.5 * xSize)) + " " +
str(round(1.5 * zSize)) + "\n")
file.write(" appearance PBRAppearance {\n")
file.write(" baseColorMap ImageTexture {\n")
file.write(" url [\n")
file.write(" \"textures/grass.jpg\"\n")
file.write(" ]\n")
file.write(" }\n")
file.write(" roughness 1\n")
file.write(" metalness 0\n")
file.write(" }\n")
file.write("}\n")
else:
file.write(elevation.floorString)
def __init__(self,
name=None,
projection=None,
keywords=None,
style_info=None,
sublayer=None):
"""Common constructor for all types of layers
See docstrings for class Raster and class Vector for details.
"""
# Name
msg = ('Specified name must be a string or None. '
'I got %s with type %s' % (name, str(type(name))[1:-1]))
verify(isinstance(name, basestring) or name is None, msg)
self.name = name
# Projection
self.projection = Projection(projection)
# Keywords
if keywords is None:
self.keywords = {}
else:
msg = ('Specified keywords must be either None or a '
'dictionary. I got %s' % keywords)
verify(isinstance(keywords, dict), msg)
self.keywords = keywords
# Style info
if style_info is None:
self.style_info = {}
else:
msg = ('Specified style_info must be either None or a '
'dictionary. I got %s' % style_info)
verify(isinstance(style_info, dict), msg)
self.style_info = style_info
# Defaults
self.sublayer = sublayer
self.filename = None
self.data = None
def make_reservation(self):
while True:
name = input("Step 1 (User) Choose name> ")
if name == "give_up":
break
num_tickets = input("Step 1 (User) Choose the number of tickets> ")
if num_tickets == "give_up":
break
num_tickets = int(num_tickets)
print("Current movies:")
self.show_movies()
chosen_movie = None
chosen_proj = Projection()
movie_id = input("Step 2 (Movie) Choose a movie> ")
if movie_id == "give_up":
break
movie_id = int(movie_id)
chosen_movie = self.find_movie(movie_id)
for projection in chosen_movie.projections:
projection.load_reservations(projection.id)
print("Projections for movie {}".format(chosen_movie.name))
self.show_projection(movie_id)
proj_id = input("Step 3 (Projection) Choose projection> ")
if proj_id == "give_up":
break
proj_id = int(proj_id)
print("Available seats (marked with a dot):")
chosen_proj = self.find_projection(proj_id, movie_id)
print(chosen_proj.id)
chosen_proj.show_seats()
seats = []
seats = self.choose_seats(num_tickets, chosen_proj)
if seats is False:
break
chosen_proj.show_seats()
self.print_reservation_details(chosen_movie, chosen_proj, seats)
command = input("To finalize type <finalize>: ")
if command == "finalize":
for seat in seats:
manage_tables.add_reservations(name, chosen_proj.id, seat[0], seat[1])
def create_projection():
parent_filename = request.json[PARENT_FILENAME_NAME]
projection_filename = request.json[PROJECTION_FILENAME_NAME]
projection_fields = request.json[FIELDS_NAME]
request_errors = analyse_request_errors(request_validator, parent_filename,
projection_filename,
projection_fields)
if request_errors is not None:
return request_errors
database_url_input = Database.collection_database_url(
database_url,
database_name,
parent_filename,
database_replica_set,
)
database_url_output = Database.collection_database_url(
database_url,
database_name,
projection_filename,
database_replica_set,
)
metadata_creator = Metadata(database)
projection = Projection(metadata_creator, database_url_input,
database_url_output)
projection.create(parent_filename, projection_filename, projection_fields)
return (
jsonify({
MESSAGE_RESULT:
f'{MICROSERVICE_URI_GET}{projection_filename}'
f'{MICROSERVICE_URI_GET_PARAMS}'
}),
HTTP_STATUS_CODE_SUCCESS_CREATED,
)
def main():
engine = create_engine("sqlite:///cinema_database.db")
Base.metadata.create_all(engine)
session = Session(bind=engine)
session.add_all([
Movie(name="The Hunger Games: Catching Fire", rating=7.9),
Movie(name="Wreck-It Ralph", rating=7.8),
Movie(name="Her", rating=8.3)
])
session.add_all([
Projection(movie_id=1, type="3D", date="2014-04-01", time="19:10"),
Projection(movie_id=1, type="2D", date="2014-04-01", time="19:00"),
Projection(movie_id=1, type="4DX", date="2014-04-02", time="21:00"),
Projection(movie_id=3, type="2D", date="2014-04-05", time="20:20"),
Projection(movie_id=2, type="3D", date="2014-04-02", time="22:00"),
Projection(movie_id=2, type="2D", date="2014-04-02", time="19:30")
])
session.add_all([
Reservation(username="******", projection_id=1, row=2, col=1),
Reservation(username="******", projection_id=1, row=3, col=5),
Reservation(username="******", projection_id=1, row=7, col=8),
Reservation(username="******", projection_id=3, row=1, col=1),
Reservation(username="******", projection_id=3, row=1, col=2),
Reservation(username="******", projection_id=5, row=2, col=3),
Reservation(username="******", projection_id=5, row=2, col=4)
])
session.commit()
def print_header(file, minlat, minlon, maxlat, maxlon, elevation=None):
"""Print the 'WorldInfo', 'Viewpoint', 'TexturedBackground', 'TexturedBackgroundLight' and 'Floor' nodes."""
xSize, zSize = get_world_size(minlat=minlat,
minlon=minlon,
maxlat=maxlat,
maxlon=maxlon)
file.write("#VRML_SIM R2018a utf8\n")
file.write("WorldInfo {\n")
file.write(" info [\n")
file.write(
" \"World generated using the Open Street Map to Webots importer\"\n"
)
file.write(" \"Author: David Mansolino <*****@*****.**>\"\n")
file.write(" ]\n")
file.write(" northDirection 0 0 1\n")
longitude = (float(maxlon) + float(minlon)) / 2
latitude = (float(maxlat) + float(minlat)) / 2
x, z = Projection.project(longitude, latitude)
height = 0
if elevation is not None:
height = elevation.interpolate_height(x, z)
file.write(" gpsCoordinateSystem \"WGS84\"\n")
file.write(" gpsReference " + str(latitude) + " " + str(longitude) + " " +
str(height) + "\n")
file.write(" lineScale " + str(round(max(xSize, zSize) / 200.0)) + "\n")
file.write("}\n")
file.write("Viewpoint {\n")
file.write(" orientation 0 0.92 0.38 3.1416\n")
position = round(xSize * math.cos(0.785) * 1.5 +
zSize * math.cos(0.785) * 1.5)
file.write(" position 0 " + str(position) + " " + str(-position) + "\n")
file.write(" near 3\n")
file.write("}\n")
file.write("TexturedBackground {\n")
file.write("}\n")
file.write("TexturedBackgroundLight {\n")
file.write("}\n")
file.write("Fog {\n")
file.write(" color 0.93 0.96 1.0\n")
file.write(" visibilityRange %s\n" % (max(3000, xSize, zSize)))
file.write("}\n")
if elevation is None:
file.write("Floor {\n")
file.write(" translation 0 -0.02 0\n")
file.write(" size " + str(round(1.5 * xSize)) + " " +
str(round(1.5 * zSize)) + "\n")
file.write(" texture [\n")
file.write(" \"textures/grass.jpg\"\n")
file.write(" ]\n")
file.write("}\n")
else:
file.write(elevation.floorString)
def add_projection(self):
movie_id = input("Type the movie_id: ")
movie_name = self.get_movie_title_by_id(movie_id)
print("Adding projection for " + movie_name)
type = input("Enter the type of the projection: ")
date = self.obtain_date()
time = self.obtain_time()
projection = Projection(type=type,
date=date,
time=time,
movie_id=movie_id)
self.__session.add(projection)
self.__session.commit()
def main():
"""The main function in which everything you run should start."""
# Make sure that the output/ directory exists, or create it otherwise.
output_dir = pathlib.Path.cwd() / "output"
if not output_dir.is_dir():
output_dir.mkdir()
#DAY 1
print("DAY 1 \nSquare Trial")
rectangle_1 = Rectangle(-1, 0, -1, 0, 1)
rectangle_2 = Rectangle(0, 1, 0, 1, .5)
circle_1 = Circle(.8, .1, .05, 1)
#attenuation for a rectangle
print('The attenuation at your point for the is:',
rectangle_1.attenuation(7, 0))
collection = ObjectCollection()
#collection.append(rectangle_1)
#collection.append(rectangle_2)
collection.append(circle_1)
#print(Projection.theta(theta_idx))
#DAY 2
#attenutation of a circle because this would be useful for changing the
#coordinates of eta and xi
print('\nDAY 2 \nCircle Trial')
print('The attenuation at (1.2 , 1.2):', circle_1.attenuation(1.2, 1.2))
print('Integrated attenuation for a given eta:',
circle_1.project_attenuation(np.pi, 0, (-2, 2)))
myproj = Projection([0, np.pi], 100, [-2, 2], 100)
myproj.add_object(collection, (-2, 2))
array_to_img(
collection.to_array(np.linspace(-2, 2, 100), np.linspace(
-2, 2, 100))).save(output_dir / "myproj1(.8, .1, .05, 1).png")
array_to_img(myproj.data).save(output_dir / "sin(.8, .1, .05, 1).png")
def __init__(self, w, h):
self.res = self.w, self.h = w, h
self.screen = pg.display.set_mode((w, h))
self.clock = pg.time.Clock()
self.fps = 60
self.objects = []
self.camera = Camera(self, (0, 0, 0))
self.camera.camera_yaw(radians(190))
self.projection = Projection(self)
def calc_electron_density(self):
"""
Deproject the surface brightness profile to derive the 3D
electron number density (and then gas mass density) profile
by incorporating the cooling function profile.
unit: [ cm^-3 ] if the units converted for input data
"""
if self.s_spline is None:
self.fit_spline(spline="brightness", log10=["x", "y"])
if self.cf_spline is None:
self.fit_spline(spline="cooling_function", log10=[])
#
s_new = self.eval_spline(spline="brightness", x=self.r)
cf_new = self.eval_spline(spline="cooling_function", x=self.r)
#
projector = Projection(rout=self.r + self.r_err)
s_deproj = projector.deproject(s_new)
# emission measure per unit volume
em_v = s_deproj / cf_new
ne = np.sqrt(em_v * AstroParams.ratio_ne_np)
self.ne = ne
return ne
def check(self, P1, P2):
w = World()
p1 = P1(w, 0)
p2 = P2(w, 1)
env = Env(w, [])
ch = choreo()
visitor = Projection()
visitor.execute(ch, env)
chor = visitor.choreography
vectorize(chor, w)
checker = CompatibilityCheck(chor, w)
checker.localChoiceChecks()
checker.generateTotalGuardsChecks()
checker.computePreds()
checker.generateCompatibilityChecks()
for i in range(0, len(checker.vcs)):
vc = checker.vcs[i]
if not vc.discharge():
print(i, "inFP", vc.title)
if vc.hasModel():
print(vc.modelStr())
return False
return True
class GenerateReprojectedImages(object):
def __init__(self, name, scale, xrot=0.0, yrot=0.0, fov=90.0, aspect=1.0):
self.name = "reproj_" + name
self.scale = scale
self.proj = Projection(xrot=xrot, yrot=yrot, fov=fov, aspect=aspect)
def __call__(self, sample):
input_dim = (sample['generated'].shape[1], sample['generated'].shape[0])
output_dim = (input_dim[0] * self.scale, input_dim[1] * self.scale)
phi, theta = self.proj.generate_map(output_dim=output_dim, input_dim=input_dim)
interpolation = cv2.INTER_AREA
remap = cv2.remap(sample['generated'], phi, theta, interpolation=interpolation, borderValue=0,
borderMode=cv2.BORDER_CONSTANT)
sample[self.name] = remap
return sample
def create_table_projcetions():
projectionscount = 6
projections = [Projection() for i in range(projectionscount)]
movie_id = [1, 1, 1, 3, 2, 2]
types = ["3D", "2D", "4DX", "2D", "3D", "2D"]
datetimes = [[2014, 4, 1, 19, 10], [2014, 4, 1, 19, 00],
[2014, 4, 2, 21, 00], [2014, 4, 5, 20, 20],
[2014, 4, 2, 22, 00], [2014, 4, 2, 19, 30]]
for i in range(projectionscount):
projections[i].movie_id = movie_id[i]
projections[i].type = types[i]
projections[i].datetime = datetime(*datetimes[i])
session.add_all(projections)
def loadModules(self):
self.modules['poi']['rss'] = geoRss(self.modules,
os.path.join(os.path.dirname(__file__),
'Setup', 'feeds.txt'))
#self.modules['poi']['geonames'] = geonames(self.modules)
#self.modules['poi']['waypoints'] = waypointsModule(self.modules, "data/waypoints.gpx")
self.modules['poi']['osm'] = osmPoiModule(self.modules)
self.modules['overlay'] = guiOverlay(self.modules)
self.modules['position'] = geoPosition()
self.modules['tiles'] = tileHandler(self.modules)
self.modules['data'] = DataStore(self.modules)
self.modules['events'] = pyrouteEvents(self.modules)
self.modules['sketch'] = sketching(self.modules)
self.modules['osmdata'] = osmData(self.modules)
self.modules['projection'] = Projection()
self.modules['tracklog'] = tracklog(self.modules)
self.modules['meta'] = moduleInfo(self.modules)
self.modules['route'] = RouteOrDirect(self.modules['osmdata'].data)
def forward(self, volume, image_features, projection_indices_3d,
projection_indices_2d, volume_dims):
assert len(volume.shape) == 5 and len(image_features.shape) == 4
batch_size = volume.shape[0]
num_images = projection_indices_3d.shape[0] // batch_size
# project 2d to 3d
image_features = [
Projection.apply(ft, ind3d, ind2d, volume_dims)
for ft, ind3d, ind2d in zip(image_features, projection_indices_3d,
projection_indices_2d)
]
image_features = torch.stack(image_features, dim=4)
# reshape to max pool over features
sz = image_features.shape
image_features = image_features.view(sz[0], -1,
batch_size * num_images)
if num_images == self.num_images:
image_features = self.pooling(image_features)
else:
image_features = nn.MaxPool1d(
kernel_size=num_images)(image_features)
image_features = image_features.view(sz[0], sz[1], sz[2], sz[3],
batch_size)
image_features = image_features.permute(4, 0, 1, 2, 3)
volume = self.features3d(volume)
image_features = self.features2d(image_features)
x = torch.cat([volume, image_features], 1)
x = self.features(x)
x = x.view(batch_size, self.nf2 * 54)
semantic_output = self.semanticClassifier(x)
semantic_output = semantic_output.view(batch_size, self.grid_dims[2],
self.num_classes)
scan_output = None
if self.train_scan_completion:
scan_output = self.scanClassifier(x)
# scan_output - [batch_size, 62, 2]
scan_output = scan_output.view(
batch_size, self.grid_dims[2],
3) # 3 represents voxel grid occupancy values
return semantic_output, scan_output
def __init__(self, name=None, projection=None,
keywords=None, style_info=None,
sublayer=None):
"""Common constructor for all types of layers
See docstrings for class Raster and class Vector for details.
"""
# Name
msg = ('Specified name must be a string or None. '
'I got %s with type %s' % (name, str(type(name))[1:-1]))
verify(isinstance(name, basestring) or name is None, msg)
self.name = name
# Projection
self.projection = Projection(projection)
# Keywords
if keywords is None:
self.keywords = {}
else:
msg = ('Specified keywords must be either None or a '
'dictionary. I got %s' % keywords)
verify(isinstance(keywords, dict), msg)
self.keywords = keywords
# Style info
if style_info is None:
self.style_info = {}
else:
msg = ('Specified style_info must be either None or a '
'dictionary. I got %s' % style_info)
verify(isinstance(style_info, dict), msg)
self.style_info = style_info
# Defaults
self.sublayer = sublayer
self.filename = None
self.data = None
class Vector:
"""Class for abstraction of vector data
"""
def __init__(self, data=None, projection=None, geometry=None,
name='', keywords=None, style_info=None):
"""Initialise object with either geometry or filename
Input
data: Can be either
* a filename of a vector file format known to GDAL
* List of dictionaries of fields associated with
point coordinates
* None
projection: Geospatial reference in WKT format.
Only used if geometry is provide as a numeric array,
geometry: A list of either point coordinates or polygons
name: Optional name for layer.
Only used if geometry is provide as a numeric array
keywords: Optional dictionary with keywords that describe the
layer. When the layer is stored, these keywords will
be written into an associated file with extension
.keywords.
Keywords can for example be used to display text
about the layer in a web application.
Note that if data is a filename, all other arguments are ignored
as they will be inferred from the file.
The geometry type will be inferred from the dimensions of geometry.
If each entry is one set of coordinates the type will be ogr.wkbPoint,
if it is an array of coordinates the type will be ogr.wkbPolygon.
"""
if data is None and projection is None and geometry is None:
# Instantiate empty object
self.name = name
self.projection = None
self.geometry = None
self.geometry_type = None
self.filename = None
self.data = None
self.extent = None
self.keywords = {}
self.style_info = {}
return
if isinstance(data, basestring):
self.read_from_file(data)
else:
# Assume that data is provided as sequences provided as
# arguments to the Vector constructor
# with extra keyword arguments supplying metadata
self.name = name
self.filename = None
if keywords is None:
self.keywords = {}
else:
msg = ('Specified keywords must be either None or a '
'dictionary. I got %s' % keywords)
assert isinstance(keywords, dict), msg
self.keywords = keywords
if style_info is None:
self.style_info = {}
else:
msg = ('Specified style_info must be either None or a '
'dictionary. I got %s' % style_info)
assert isinstance(style_info, dict), msg
self.style_info = style_info
msg = 'Geometry must be specified'
assert geometry is not None, msg
msg = 'Geometry must be a sequence'
assert is_sequence(geometry), msg
self.geometry = geometry
self.geometry_type = get_geometry_type(geometry)
#msg = 'Projection must be specified'
#assert projection is not None, msg
self.projection = Projection(projection)
self.data = data
if data is not None:
msg = 'Data must be a sequence'
assert is_sequence(data), msg
msg = ('The number of entries in geometry and data '
'must be the same')
assert len(geometry) == len(data), msg
# FIXME: Need to establish extent here
def __str__(self):
"""Render as name, number of features, geometry type
"""
g_type_str = geometrytype2string(self.geometry_type)
return ('Vector data set: %s, %i features, geometry type '
'%s (%s)' % (self.name,
len(self),
str(self.geometry_type),
g_type_str))
def __len__(self):
"""Size of vector layer defined as number of features
"""
return len(self.geometry)
def __eq__(self, other, rtol=1.0e-5, atol=1.0e-8):
"""Override '==' to allow comparison with other vector objecs
Input
other: Vector instance to compare to
rtol, atol: Relative and absolute tolerance.
See numpy.allclose for details
"""
# Check type
if not isinstance(other, Vector):
msg = ('Vector instance cannot be compared to %s'
' as its type is %s ' % (str(other), type(other)))
raise TypeError(msg)
# Check projection
if self.projection != other.projection:
return False
# Check geometry
if not numpy.allclose(self.get_geometry(),
other.get_geometry(),
rtol=rtol, atol=atol):
return False
# Check keys
x = self.get_data()
y = other.get_data()
for key in x[0]:
for i in range(len(y)):
if key not in y[i]:
return False
for key in y[0]:
for i in range(len(x)):
if key not in x[i]:
return False
# Check data
for i, a in enumerate(x):
for key in a:
X = a[key]
Y = y[i][key]
if X != Y:
# Not obviously equal, try some special cases
res = None
try:
# try numerical comparison with tolerances
res = numpy.allclose(X, Y,
rtol=rtol, atol=atol)
except:
pass
else:
if not res:
return False
try:
# Try to cast as booleans. This will take care of
# None, '', True, False, ...
res = (bool(X) is bool(Y))
except:
pass
else:
if not res:
return False
if res is None:
# None of the comparisons could be done
return False
# Check keywords
if self.keywords != other.keywords:
return False
# Vector layers are identical up to the specified tolerance
return True
def __ne__(self, other):
"""Override '!=' to allow comparison with other projection objecs
"""
return not self == other
def get_name(self):
return self.name
def set_name(self, name):
self.name = name
def get_filename(self):
return self.filename
def get_keywords(self, key=None):
"""Return keywords dictionary
"""
if key is None:
return self.keywords
else:
if key in self.keywords:
return self.keywords[key]
else:
msg = ('Keyword %s does not exist in %s: Options are '
'%s' % (key, self.get_name(), self.keywords.keys()))
raise Exception(msg)
def get_style_info(self):
"""Return style_info dictionary
"""
return self.style_info
def get_caption(self):
"""Return 'caption' keyword if present. Otherwise ''.
"""
if 'caption' in self.keywords:
return self.keywords['caption']
else:
return ''
def read_from_file(self, filename):
""" Read and unpack vector data.
It is assumed that the file contains only one layer with the
pertinent features. Further it is assumed for the moment that
all geometries are points.
* A feature is a geometry and a set of attributes.
* A geometry refers to location and can be point, line, polygon or
combinations thereof.
* The attributes or obtained through GetField()
The full OGR architecture is documented at
* http://www.gdal.org/ogr/ogr_arch.html
* http://www.gdal.org/ogr/ogr_apitut.html
Examples are at
* danieljlewis.org/files/2010/09/basicpythonmap.pdf
* http://invisibleroads.com/tutorials/gdal-shapefile-points-save.html
* http://www.packtpub.com/article/geospatial-data-python-geometry
"""
basename, _ = os.path.splitext(filename)
# Look for any keywords
self.keywords = read_keywords(basename + '.keywords')
# FIXME (Ole): Should also look for style file to populate style_info
# Determine name
if 'title' in self.keywords:
vectorname = self.keywords['title']
else:
# Use basename without leading directories as name
vectorname = os.path.split(basename)[-1]
self.name = vectorname
self.filename = filename
self.geometry_type = None # In case there are no features
fid = ogr.Open(filename)
if fid is None:
msg = 'Could not open %s' % filename
raise IOError(msg)
# Assume that file contains all data in one layer
msg = 'Only one vector layer currently allowed'
if fid.GetLayerCount() > 1:
msg = ('WARNING: Number of layers in %s are %i. '
'Only the first layer will currently be '
'used.' % (filename, fid.GetLayerCount()))
raise Exception(msg)
layer = fid.GetLayerByIndex(0)
# Get spatial extent
self.extent = layer.GetExtent()
# Get projection
p = layer.GetSpatialRef()
self.projection = Projection(p)
# Get number of features
N = layer.GetFeatureCount()
# Extract coordinates and attributes for all features
geometry = []
data = []
for i in range(N):
feature = layer.GetFeature(i)
if feature is None:
msg = 'Could not get feature %i from %s' % (i, filename)
raise Exception(msg)
# Record coordinates ordered as Longitude, Latitude
G = feature.GetGeometryRef()
if G is None:
msg = ('Geometry was None in filename %s ' % filename)
raise Exception(msg)
else:
self.geometry_type = G.GetGeometryType()
if self.geometry_type == ogr.wkbPoint:
geometry.append((G.GetX(), G.GetY()))
elif self.geometry_type == ogr.wkbLineString:
M = G.GetPointCount()
coordinates = []
for j in range(M):
coordinates.append((G.GetX(j), G.GetY(j)))
# Record entire line as an Mx2 numpy array
geometry.append(numpy.array(coordinates,
dtype='d',
copy=False))
elif self.geometry_type == ogr.wkbPolygon:
ring = G.GetGeometryRef(0)
M = ring.GetPointCount()
coordinates = []
for j in range(M):
coordinates.append((ring.GetX(j), ring.GetY(j)))
# Record entire polygon ring as an Mx2 numpy array
geometry.append(numpy.array(coordinates,
dtype='d',
copy=False))
#elif self.geometry_type == ogr.wkbMultiPolygon:
# # FIXME: Unpact multiple polygons to simple polygons
# # For hints on how to unpack see
#http://osgeo-org.1803224.n2.nabble.com/
#gdal-dev-Shapefile-Multipolygon-with-interior-rings-td5391090.html
# ring = G.GetGeometryRef(0)
# M = ring.GetPointCount()
# coordinates = []
# for j in range(M):
# coordinates.append((ring.GetX(j), ring.GetY(j)))
# # Record entire polygon ring as an Mx2 numpy array
# geometry.append(numpy.array(coordinates,
# dtype='d',
# copy=False))
else:
msg = ('Only point, line and polygon geometries are '
'supported. '
'Geometry type in filename %s '
'was %s.' % (filename,
self.geometry_type))
raise Exception(msg)
# Record attributes by name
number_of_fields = feature.GetFieldCount()
fields = {}
for j in range(number_of_fields):
name = feature.GetFieldDefnRef(j).GetName()
# FIXME (Ole): Ascertain the type of each field?
# We need to cast each appropriately?
# This is issue #66
# (https://github.com/AIFDR/riab/issues/66)
#feature_type = feature.GetFieldDefnRef(j).GetType()
fields[name] = feature.GetField(j)
#print 'Field', name, feature_type, j, fields[name]
data.append(fields)
# Store geometry coordinates as a compact numeric array
self.geometry = geometry
self.data = data
def write_to_file(self, filename):
"""Save vector data to file
Input
filename: filename with extension .shp or .gml
Note, if attribute names are longer than 10 characters they will be
truncated. This is due to limitations in the shp file driver and has
to be done here since gdal v1.7 onwards has changed its handling of
this issue: http://www.gdal.org/ogr/drv_shapefile.html
"""
# Check file format
basename, extension = os.path.splitext(filename)
msg = ('Invalid file type for file %s. Only extensions '
'shp or gml allowed.' % filename)
assert extension == '.shp' or extension == '.gml', msg
driver = DRIVER_MAP[extension]
# FIXME (Ole): Tempory flagging of GML issue (ticket #18)
if extension == '.gml':
msg = ('OGR GML driver does not store geospatial reference.'
'This format is disabled for the time being. See '
'https://github.com/AIFDR/riab/issues/18')
raise Exception(msg)
# Derive layername from filename (excluding preceding dirs)
layername = os.path.split(basename)[-1]
# Get vector data
geometry = self.get_geometry()
data = self.get_data()
N = len(geometry)
# Clear any previous file of this name (ogr does not overwrite)
try:
os.remove(filename)
except:
pass
# Create new file with one layer
drv = ogr.GetDriverByName(driver)
if drv is None:
msg = 'OGR driver %s not available' % driver
raise Exception(msg)
ds = drv.CreateDataSource(filename)
if ds is None:
msg = 'Creation of output file %s failed' % filename
raise Exception(msg)
lyr = ds.CreateLayer(layername,
self.projection.spatial_reference,
self.geometry_type)
if lyr is None:
msg = 'Could not create layer %s' % layername
raise Exception(msg)
# Define attributes if any
store_attributes = False
if data is not None:
if len(data) > 0:
try:
fields = data[0].keys()
except:
msg = ('Input parameter "attributes" was specified '
'but it does not contain dictionaries with '
'field information as expected. The first'
'element is %s' % data[0])
raise Exception(msg)
else:
# Establish OGR types for each element
ogrtypes = {}
for name in fields:
att = data[0][name]
py_type = type(att)
msg = ('Unknown type for storing vector '
'data: %s, %s' % (name, str(py_type)[1:-1]))
assert py_type in TYPE_MAP, msg
ogrtypes[name] = TYPE_MAP[py_type]
else:
msg = ('Input parameter "data" was specified '
'but appears to be empty')
raise Exception(msg)
# Create attribute fields in layer
store_attributes = True
for name in fields:
fd = ogr.FieldDefn(name, ogrtypes[name])
# FIXME (Ole): Trying to address issue #16
# But it doesn't work and
# somehow changes the values of MMI in test
#width = max(128, len(name))
#print name, width
#fd.SetWidth(width)
# Silent handling of warnings like
# Warning 6: Normalized/laundered field name:
#'CONTENTS_LOSS_AUD' to 'CONTENTS_L'
gdal.PushErrorHandler('CPLQuietErrorHandler')
if lyr.CreateField(fd) != 0:
msg = 'Could not create field %s' % name
raise Exception(msg)
# Restore error handler
gdal.PopErrorHandler()
# Store geometry
geom = ogr.Geometry(self.geometry_type)
layer_def = lyr.GetLayerDefn()
for i in range(N):
# Create new feature instance
feature = ogr.Feature(layer_def)
# Store geometry and check
if self.geometry_type == ogr.wkbPoint:
x = float(geometry[i][0])
y = float(geometry[i][1])
geom.SetPoint_2D(0, x, y)
elif self.geometry_type == ogr.wkbPolygon:
wkt = array2wkt(geometry[i], geom_type='POLYGON')
geom = ogr.CreateGeometryFromWkt(wkt)
else:
msg = 'Geometry type %s not implemented' % self.geometry_type
raise Exception(msg)
feature.SetGeometry(geom)
G = feature.GetGeometryRef()
if G is None:
msg = 'Could not create GeometryRef for file %s' % filename
raise Exception(msg)
# Store attributes
if store_attributes:
for j, name in enumerate(fields):
actual_field_name = layer_def.GetFieldDefn(j).GetNameRef()
val = data[i][name]
if type(val) == numpy.ndarray:
# A singleton of type <type 'numpy.ndarray'> works
# for gdal version 1.6 but fails for version 1.8
# in SetField with error: NotImplementedError:
# Wrong number of arguments for overloaded function
val = float(val)
elif val is None:
val = ''
feature.SetField(actual_field_name, val)
# Save this feature
if lyr.CreateFeature(feature) != 0:
msg = 'Failed to create feature %i in file %s' % (i, filename)
raise Exception(msg)
feature.Destroy()
# Write keywords if any
write_keywords(self.keywords, basename + '.keywords')
# FIXME (Ole): Maybe store style_info
def get_attribute_names(self):
""" Get available attribute names
These are the ones that can be used with get_data
"""
return self.data[0].keys()
def get_data(self, attribute=None, index=None):
"""Get vector attributes
Data is returned as a list where each entry is a dictionary of
attributes for one feature. Entries in get_geometry() and
get_data() are related as 1-to-1
If optional argument attribute is specified and a valid name,
then the list of values for that attribute is returned.
If optional argument index is specified on the that value will
be returned. Any value of index is ignored if attribute is None.
"""
if hasattr(self, 'data'):
if attribute is None:
return self.data
else:
msg = ('Specified attribute %s does not exist in '
'vector layer %s. Valid names are %s'
'' % (attribute, self, self.data[0].keys()))
assert attribute in self.data[0], msg
if index is None:
# Return all values for specified attribute
return [x[attribute] for x in self.data]
else:
# Return value for specified attribute and index
msg = ('Specified index must be either None or '
'an integer. I got %s' % index)
assert type(index) == type(0)
msg = ('Specified index must lie within the bounds '
'of vector layer %s which is [%i, %i]'
'' % (self, 0, len(self) - 1))
assert 0 <= index < len(self)
return self.data[index][attribute]
else:
msg = 'Vector data instance does not have any attributes'
raise Exception(msg)
def get_geometry(self):
"""Return geometry for vector layer.
Depending on the feature type, geometry is
geometry type output type
-----------------------------
point coordinates (Nx2 array of longitudes and latitudes)
line TODO
polygon list of arrays of coordinates
"""
return self.geometry
def get_projection(self, proj4=False):
"""Return projection of this layer as a string
"""
return self.projection.get_projection(proj4)
def get_bounding_box(self):
"""Get bounding box coordinates for vector layer.
Format is [West, South, East, North]
"""
e = self.extent
return [e[0], # West
e[2], # South
e[1], # East
e[3]] # North
def get_extrema(self, attribute=None):
"""Get min and max values from specified attribute
Return min, max
"""
if attribute is None:
msg = ('Valid attribute name must be specified in get_extrema '
'for vector layers. I got None.')
raise RuntimeError(msg)
x = self.get_data(attribute)
return min(x), max(x)
def get_topN(self, attribute, N=10):
"""Get top N features
Input
attribute: The name of attribute where values are sought
N: How many
Output
layer: New vector layer with selected features
"""
# FIXME (Ole): Maybe generalise this to arbitrary expressions
# Input checks
msg = ('Specfied attribute must be a string. '
'I got %s' % (type(attribute)))
assert isinstance(attribute, basestring), msg
msg = 'Specified attribute was empty'
assert attribute != '', msg
msg = 'N must be a positive number. I got %i' % N
assert N > 0, msg
# Create list of values for specified attribute
values = self.get_data(attribute)
# Sort and select using Schwarzian transform
A = zip(values, self.data, self.geometry)
A.sort()
# Pick top N and unpack
_, data, geometry = zip(*A[-N:])
# Create new Vector instance and return
return Vector(data=data,
projection=self.get_projection(),
geometry=geometry)
def interpolate(self, X, name=None, attribute=None):
"""Interpolate values of this vector layer to other layer
Input
X: Layer object defining target
name: Optional name of interpolated layer
attribute: Optional attribute name to use.
If None, all attributes are used.
Output
Y: Layer object with values of this vector layer interpolated to
geometry of input layer X
"""
msg = 'Input to Vector.interpolate must be a vector layer instance'
assert X.is_vector, msg
X_projection = X.get_projection()
S_projection = self.get_projection()
msg = ('Projections must be the same: I got %s and %s'
% (S_projection, X_projection))
assert S_projection == X_projection, msg
msg = ('Vector layer to interpolate from must be polygon geometry. '
'I got OGR geometry type %s'
% geometrytype2string(self.geometry_type))
assert self.is_polygon_data, msg
# FIXME (Ole): Maybe organise this the same way it is done with rasters
if X.is_polygon_data:
# Use centroids, in case of polygons
X = convert_polygons_to_centroids(X)
msg = ('Vector layer to interpolate to must be point geometry. '
'I got OGR geometry type %s'
% geometrytype2string(X.geometry_type))
assert X.is_point_data, msg
msg = ('Name must be either a string or None. I got %s'
% (str(type(X)))[1:-1])
assert name is None or isinstance(name, basestring), msg
msg = ('Attribute must be either a string or None. I got %s'
% (str(type(X)))[1:-1])
assert attribute is None or isinstance(attribute, basestring), msg
attribute_names = self.get_attribute_names()
if attribute is not None:
msg = ('Requested attribute "%s" did not exist in %s'
% (attribute, attribute_names))
assert attribute in attribute_names, msg
#----------------
# Start algorithm
#----------------
# Extract point features
points = ensure_numeric(X.get_geometry())
attributes = X.get_data()
N = len(X)
# Extract polygon features
geom = self.get_geometry()
data = self.get_data()
assert len(geom) == len(data)
# Augment point features with empty attributes from polygon
for a in attributes:
if attribute is None:
# Use all attributes
for key in attribute_names:
a[key] = None
else:
# Use only requested attribute
a[attribute] = None
# Always create attribute to indicate if point was
# inside any of the polygons
a[DEFAULT_ATTRIBUTE] = None
# Traverse polygons and assign attributes to points that fall inside
for i, polygon in enumerate(geom):
if attribute is None:
# Use all attributes
poly_attr = data[i]
else:
# Use only requested attribute
poly_attr = {attribute: data[i][attribute]}
# Assign default attribute to indicate points inside
poly_attr[DEFAULT_ATTRIBUTE] = True
# Clip data points by polygons and add polygon attributes
indices = inside_polygon(points, polygon)
for k in indices:
for key in poly_attr:
# Assign attributes from polygon to points
attributes[k][key] = poly_attr[key]
# Create new Vector instance and return
V = Vector(data=attributes,
projection=X.get_projection(),
geometry=X.get_geometry())
return V
@property
def is_raster(self):
return False
@property
def is_vector(self):
return True
@property
def is_point_data(self):
return self.is_vector and self.geometry_type == ogr.wkbPoint
@property
def is_line_data(self):
return self.is_vector and self.geometry_type == ogr.wkbLineString
@property
def is_polygon_data(self):
return self.is_vector and self.geometry_type == ogr.wkbPolygon
@property
def is_riab_spatial_object(self):
return True
def __init__(self, data=None, projection=None, geometry=None,
geometry_type=None,
name='', keywords=None, style_info=None):
"""Initialise object with either geometry or filename
Input
data: Can be either
* a filename of a vector file format known to GDAL
* List of dictionaries of fields associated with
point coordinates
* None
projection: Geospatial reference in WKT format.
Only used if geometry is provide as a numeric array,
geometry: A list of either point coordinates or polygons/lines
(see note below)
geometry_type: Desired interpretation of geometry.
Valid options are 'point', 'line', 'polygon' or
the ogr types: 1, 2, 3
If None, a geometry_type will be inferred
name: Optional name for layer.
Only used if geometry is provide as a numeric array
keywords: Optional dictionary with keywords that describe the
layer. When the layer is stored, these keywords will
be written into an associated file with extension
.keywords.
Keywords can for example be used to display text
about the layer in a web application.
Notes
If data is a filename, all other arguments are ignored
as they will be inferred from the file.
The geometry type will be inferred from the dimensions of geometry.
If each entry is one set of coordinates the type will be ogr.wkbPoint,
if it is an array of coordinates the type will be ogr.wkbPolygon.
Each polygon or line feature take the form of an Nx2 array representing
vertices where line segments are joined
"""
if data is None and projection is None and geometry is None:
# Instantiate empty object
self.name = name
self.projection = None
self.geometry = None
self.geometry_type = None
self.filename = None
self.data = None
self.extent = None
self.keywords = {}
self.style_info = {}
return
if isinstance(data, basestring):
self.read_from_file(data)
else:
# Assume that data is provided as sequences provided as
# arguments to the Vector constructor
# with extra keyword arguments supplying metadata
self.name = name
self.filename = None
if keywords is None:
self.keywords = {}
else:
msg = ('Specified keywords must be either None or a '
'dictionary. I got %s' % keywords)
verify(isinstance(keywords, dict), msg)
self.keywords = keywords
if style_info is None:
self.style_info = {}
else:
msg = ('Specified style_info must be either None or a '
'dictionary. I got %s' % style_info)
verify(isinstance(style_info, dict), msg)
self.style_info = style_info
msg = 'Geometry must be specified'
verify(geometry is not None, msg)
msg = 'Geometry must be a sequence'
verify(is_sequence(geometry), msg)
self.geometry = geometry
self.geometry_type = get_geometry_type(geometry, geometry_type)
#msg = 'Projection must be specified'
#verify(projection is not None, msg)
self.projection = Projection(projection)
if data is None:
# Generate default attribute as OGR will do that anyway
# when writing
data = []
for i in range(len(geometry)):
data.append({'ID': i})
# Check data
self.data = data
if data is not None:
msg = 'Data must be a sequence'
verify(is_sequence(data), msg)
msg = ('The number of entries in geometry and data '
'must be the same')
verify(len(geometry) == len(data), msg)
class Render(object):
"""
This class handles the OpenGL rendering process
This is separate from the pyglet rendering, as it runs using OpenGL
directly
"""
# ------------------------------------------------------------------
# HANDLE INITIALIZATION
# ------------------------------------------------------------------
def __init__(self, *args, **kwargs):
"""
General initialization function for OpenGL, readying all the
non-stimuli images and setting the parameters for rendering
parameters
"""
# Initialize the OpenGL parameters
self.__init_GL()
opengl_info()
stereo = False
if not STIMULI_ONLY:
# Initiate the message textures we will use in the experiment
self.__init_messages()
# Initiate the fixation point texture we will use
self.__init_fix()
# Initialize the geometry
self.__init_geometry()
# Initialize the lighting
self.__init_lighting()
if args:
# self.__init_VBO(args)
self.__init_projection(args)
stereo = args[-1]
self.__init_modelview()
self.__init_stereo(stereo)
self.__init_grid()
# Enable the basic GL_STATES that will be in use throughout
# the experiment
self.enable_GL_STATE()
def __init_GL(self):
"""
General initialization module for OpenGL, setting all of the
parameters to be use throughout the experiment
"""
# Set the background color to black
glClearColor(0.0, 0.0, 0.0, 1.0)
# Set the clearing depth buffer
glClearDepth(1.0)
# Select type of depth test to perform
glDepthFunc(GL_LEQUAL)
# Really good for perspective calculations
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST)
def __init_messages(self):
"""
Prepare all the message images for rendering as textures
"""
# Store all the message images here
self.messages = {}
# Iterating through all the message images
for filename in IMG_MSG:
# Get the name of the message state
state = findall(r'\\(\w+)\.jpg', filename)
# If the regex finds something, use the first element
# of the resultant list
if state:
state = state[0]
# Load the image
self.messages[state] = load(filename)
def __init_fix(self):
# Load the fixation point image from directory
self.fix_image = load(IMG_FIX)
def __init_stereo(self, stereo):
if stereo:
self.buffers = [GL_BACK_LEFT, GL_BACK_RIGHT]
else:
self.buffers = [GL_BACK]
def __init_grid(self):
self.translate_stimuli = [
(-2.0, 4.0), (0.0, 4.0), (2.0, 4.0),
(-2.0, 2.0), (0.0, 2.0), (2.0, 2.0),
(-2.0, 0.0), (0.0, 0.0), (2.0, 0.0),
(-2.0, -2.0), (0.0, -2.0), (2.0, -2.0)
]
self.translate_stimuli = [(0.0, 0.0)]
self.translate_message = [(0.0, 0.0)]
# def __init_VBO(self, args):
# Calculate the width displacement from the midpoint of the screen
# wd = round(self.fix_image.width / float(args[0]), 2)
# Calculate the height displacement from the midpoint of the screen
# hd = round(self.fix_image.height / float(args[1]), 2)
# self.vbo = VBO(wd, hd)
# ------------------------------------------------------------------
# HANDLE GEOMETRY
# ------------------------------------------------------------------
def __init_geometry(self):
"""
This module sets the geometry to be used in the rendering of
the display messages and stimuli
"""
# Set values for geometry that will be used later
self.rotation = {'X': 0.0, 'Y': 0.0, 'Z': 0.0}
self.translation = {'X': 0.0, 'Y': 0.0, 'Z': STIMULI_DEPTH}
self.scale = {'X': 1.0, 'Y': 1.0, 'Z': 1.0}
def __set_geometry(self):
"""
Setup the geometry for the model
Takes care of the translation, rotation and scaling needs of the model
"""
# Switch to modelview
glMatrixMode(GL_MODELVIEW)
# Reset The View
glLoadIdentity()
# Move into the screen
glTranslatef(self.translation['X'],
self.translation['Y'],
self.translation['Z'])
# Rotate the texture on its X-axis
glRotatef(self.rotation['X'] * -1, 1.0, 0.0, 0.0)
# Rotate the texture on its Y-axis
glRotatef(self.rotation['Y'] * -1, 0.0, 1.0, 0.0)
# Rotate the texture on its Z-axis
glRotatef(self.rotation['Z'] * -1, 0.0, 0.0, 1.0)
# Scale the texture
# For Z-axis, multiply it by the HEIGHT_RATIO set
glScalef(self.scale['X'], self.scale['Y'],
self.scale['Z'])
# ------------------------------------------------------------------
# HANDLE MATRICES
# ------------------------------------------------------------------
def __init_projection(self, args):
self.projection = Projection(args[0], args[1], args[2])
def __init_modelview(self):
self.modelview = ModelView()
def __set_modelview(self):
self.modelview.set_matrix(self.rotation, self.scale, self.translation)
# ------------------------------------------------------------------
# HANDLE LIGHTING
# ------------------------------------------------------------------
def __init_lighting(self):
"""
This module sets the lighting parameters to be used by the shaders
in the rendering of the stimuli
NOTE: This is used only with the rendering of stimuli, it is
not used with the display of messages or the fixation point
"""
# Set the light position
# If there is only light source being used, set it to the first
# element of LIGHT_POSITION
if len(LIGHT_POSITION) == 1:
self.light_position = LIGHT_POSITION[0]
# If there are multiple light sources, we keep it as a list
else:
self.light_position = LIGHT_POSITION
# Set the light color
# If there is only light source being used, set it to the first
# element of LIGHT_COLOR
if len(LIGHT_COLOR) == 1:
self.light_color = LIGHT_COLOR[0]
# If there are multiple light sources, we keep it as a list
else:
self.light_color = LIGHT_COLOR
# ------------------------------------------------------------------
# HANDLE OPENGL STATES
# ------------------------------------------------------------------
def enable_GL_STATE(self):
"""
Enables all required OpenGL states
This module will enable:
- Depth Test
- Texture
- Array Buffers
"""
glEnable(GL_DEPTH_TEST)
glEnable(GL_TEXTURE_2D)
if not ENABLE_SHADER or GLSL_VERSION == 130:
# Enable all the corresponding buffer arrays
glEnableClientState(GL_TEXTURE_COORD_ARRAY)
glEnableClientState(GL_VERTEX_ARRAY)
glEnableClientState(GL_NORMAL_ARRAY)
def disable_GL_STATE(self):
"""
Disables all enabled OpenGL states
This module will disable:
- Depth Test
- Array Buffers
for complete shutdown of all GL_STATES
"""
glDisable(GL_DEPTH_TEST)
glDisable(GL_TEXTURE_2D)
if not ENABLE_SHADER or GLSL_VERSION == 130:
# Disable all the corresponding buffer arrays
glDisableClientState(GL_VERTEX_ARRAY)
glDisableClientState(GL_TEXTURE_COORD_ARRAY)
glDisableClientState(GL_NORMAL_ARRAY)
# ------------------------------------------------------------------
# HANDLE VERTEX BUFFER OBJECTS
#
# THIS CODE HAS NOW BEEN MOVE TO vbo.py
# AND IMPLEMENTED WITH MULTI-THREADING
# ------------------------------------------------------------------
def create_VBO(self, window_width, window_height):
"""
Create OpenGL Vertex Buffer Objects as need for:
- Non-stimuli images
- Stimuli images
"""
scaleX = SCALE_X
scaleY = SCALE_Y
if not ENABLE_SHADER or GLSL_VERSION == 130:
scaleX = 1.0
scaleY = 1.0
if not STIMULI_ONLY:
self.message_VBO = {}
# Create the Vertex Buffer Object to house the texture
# coordinates and vertices for message display
self.__message_VBO(window_width, window_height, scaleX, scaleY)
self.stimuli_VBO = {}
# Create the Vertex Buffer Object to house the texture
# coordinates, vertices and normals for the stimuli
self.__stimuli_VBO(scaleX, scaleY)
def __message_VBO(self, width, height, scaleX, scaleY):
"""
Create the Vertex Buffer Objects for message display
"""
# Calculate the width displacement from the midpoint of the screen
wd = round(self.fix_image.width / float(width), 2)
# Calculate the height displacement from the midpoint of the screen
hd = round(self.fix_image.height / float(height), 2)
# Create the buffer array for Vertex
l = [
[(0.0 - wd) * scaleX, (0.0 - hd) * scaleY],
[(0.0 + wd) * scaleX, (0.0 - hd) * scaleY],
[(0.0 + wd) * scaleX, (0.0 + hd) * scaleY],
[(0.0 - wd) * scaleX, (0.0 + hd) * scaleY]
]
self.message_VBO['vertex'] = VertexBuffer(array(l, dtype=float32))
# Create the buffer array for TexCoord
l = [[0.0, 0.0], [1.0, 0.0], [1.0, 1.0], [0.0, 1.0]]
self.message_VBO['texcoord'] = VertexBuffer(array(l, dtype=float32))
# Create the buffer array for Normal
l = [[0.0, 0.0, 1.0], [0.0, 0.0, 1.0],
[0.0, 0.0, 1.0], [0.0, 0.0, 1.0]]
self.message_VBO['normal'] = VertexBuffer(array(l, dtype=float32))
# def __message_VBO2(self, width, height):
# """
# Create the Vertex Buffer Objects for message display
# """
# # Calculate the width displacement from the midpoint of the screen
# wd = round(self.fix_image.width / float(width), 2)
# # Calculate the height displacement from the midpoint of the screen
# hd = round(self.fix_image.height / float(height), 2)
#
# vertices = [
# # VERTEX TEXCOORD NORMAL
# [0.0 - wd, 0.0 - hd, 0.0, 0.0, 0.0, 0.0, 1.0],
# [0.0 + wd, 0.0 - hd, 1.0, 0.0, 0.0, 0.0, 1.0],
# [0.0 + wd, 0.0 + hd, 1.0, 1.0, 0.0, 0.0, 1.0],
# [0.0 - wd, 0.0 + hd, 0.0, 1.0, 0.0, 0.0, 1.0]
# ]
#
# self.message_VBO = VertexBuffer(array(vertices, dtype=float32))
def __stimuli_VBO(self, scaleX, scaleY):
"""
Create the Vertex Buffer Objects for stimuli display
"""
# Initiate the VBOs pertaining to the stimuli texture
self.stimuli_VBO['vertex'] = []
self.stimuli_VBO['texcoord'] = []
self.stimuli_VBO['normal'] = []
t0 = time()
# Iterate through the points, moving up by the preset value:
# STEP_SIZE
for X in xrange(0, WIDTH - STEP_SIZE + 1, STEP_SIZE):
for Y in xrange(0, HEIGHT - STEP_SIZE + 1, STEP_SIZE):
# BOTTOM LEFT CORNER
x, y, vertX, vertY = get_coords(X, Y, scaleX, scaleY)
self.stimuli_VBO['vertex'].append([vertX, vertY])
self.stimuli_VBO['texcoord'].append([x, y])
# BOTTOM RIGHT CORNER
x, y, vertX, vertY = get_coords(X + STEP_SIZE, Y,
scaleX, scaleY)
self.stimuli_VBO['vertex'].append([vertX, vertY])
self.stimuli_VBO['texcoord'].append([x, y])
# TOP RIGHT CORNER
x, y, vertX, vertY = get_coords(X + STEP_SIZE,
Y + STEP_SIZE,
scaleX, scaleY)
self.stimuli_VBO['vertex'].append([vertX, vertY])
self.stimuli_VBO['texcoord'].append([x, y])
# TOP LEFT CORNER
x, y, vertX, vertY = get_coords(X, Y + STEP_SIZE,
scaleX, scaleY)
self.stimuli_VBO['vertex'].append([vertX, vertY])
self.stimuli_VBO['texcoord'].append([x, y])
for i in range(0, 4):
self.stimuli_VBO['normal'].append([0.0, 0.0, 1.0])
# Instatiate the Vertex Buffer Objects using VertexBuffer
self.stimuli_VBO['vertex'] = \
VertexBuffer(array(self.stimuli_VBO['vertex'], dtype=float32))
self.stimuli_VBO['texcoord'] = \
VertexBuffer(array(self.stimuli_VBO['texcoord'], dtype=float32))
self.stimuli_VBO['normal'] = \
VertexBuffer(array(self.stimuli_VBO['normal'], dtype=float32))
print 'Preparing the VBOs took %s seconds' % get_time(t0, time())
# def __stimuli_VBO2(self):
# """
# Create the Vertex Buffer Objects for stimuli display
# """
# vertices = []
# indices = []
# next_column = HEIGHT / STEP_SIZE + 1
#
# # Iterate through the points, moving up by the preset value:
# # STEP_SIZE
# for X in xrange(0, WIDTH + 1, STEP_SIZE):
# for Y in xrange(0, HEIGHT + 1, STEP_SIZE):
# # Handle the VERTEX BUFFER OBJECT
# x, y, vertX, vertY = self.__get_coords(X, Y)
# vertices.append(
# # VERTEX TEXCOORD
# [vertX, vertY, x, y,
# # NORMAL
# 0.0, 0.0, 1.0]
# )
#
# # Handle the ELEMENT BUFFER OBJECT
# index_x = X / STEP_SIZE
# index_y = Y / STEP_SIZE
# origin = index_x + index_y
#
# indices.append(
# # BOTTOM LEFT CORNER
# [origin,
# # BOTTOM RIGHT CORNER
# origin + next_column,
# # TOP RIGHT CORNER
# origin + next_column + 1,
# # TOP LEFT CORNER
# origin + 1
# ]
# )
#
# self.stimuli_VBO = VertexBuffer(array(vertices, dtype=float32))
# self.indices_VBO = VertexBuffer(array(indices, dtype=int32))
def bind_message(self):
"""
Bind all the Vertex Buffer Objects necessary for displaying
messages and the fixation point
"""
# Bind all the Vertex Buffer Objects
if ENABLE_SHADER and GLSL_VERSION == 330:
self.message_VBO['vertex'].bind_attribute(0, 2, GL_FLOAT)
self.message_VBO['texcoord'].bind_attribute(1, 2, GL_FLOAT)
self.message_VBO['normal'].bind_attribute(2, 3, GL_FLOAT)
else:
self.message_VBO['vertex'].bind_vertices(2, GL_FLOAT)
self.message_VBO['texcoord'].bind_texcoords(2, GL_FLOAT)
self.message_VBO['normal'].bind_normals(GL_FLOAT)
def bind_stimuli(self):
"""
Bind all the Vertex Buffer Objects necessary for displaying the
stimuli
"""
# Bind all the Vertex Buffer Objects
if ENABLE_SHADER and GLSL_VERSION == 330:
self.stimuli_VBO['vertex'].bind_attribute(0, 2, GL_FLOAT)
self.stimuli_VBO['texcoord'].bind_attribute(1, 2, GL_FLOAT)
self.stimuli_VBO['normal'].bind_attribute(2, 3, GL_FLOAT)
else:
self.stimuli_VBO['vertex'].bind_vertices(2, GL_FLOAT)
self.stimuli_VBO['texcoord'].bind_texcoords(2, GL_FLOAT)
self.stimuli_VBO['normal'].bind_normals(GL_FLOAT)
def unbind_all(self):
if hasattr(self, 'message_VBO'):
self.message_VBO['vertex'].unbind()
self.message_VBO['texcoord'].unbind()
self.message_VBO['normal'].unbind()
if hasattr(self, 'stimuli_VBO'):
self.stimuli_VBO['vertex'].unbind()
self.stimuli_VBO['texcoord'].unbind()
self.stimuli_VBO['normal'].unbind()
# ------------------------------------------------------------------
# HANDLE SHADERS
# ------------------------------------------------------------------
def create_shaders(self):
"""
Create the OpenGL program on the GPU and attach the shaders
"""
# If set to use shaders, enable them accordingly
if ENABLE_SHADER:
# Get the vertex shader
vs = VertexShader(VERTEX_SHADER_FILE)
# Get the fragment shader
fs = FragmentShader(FRAGMENT_SHADER_FILE)
# Assign the shader for the program
self.shader = ShaderProgram(vs, fs)
# Use the shader with the program
self.shader.use()
def pass_to_shaders(self, program, process_stimuli, colormap, heightmap,
normalmap):
"""
Pass variables to shaders
"""
# ----------------------------------------------------------
# HANDLE DISPLACEMENT MAPPING VARIABLES
# ----------------------------------------------------------
# Get the texture for colormap
colormap = colormap.get_texture()
# Work on GL_TEXTURE0
glActiveTexture(GL_TEXTURE0)
# Bind the colormap
glBindTexture(colormap.target, colormap.id)
# Get the location of the colormap and pass it to the shader
loc = glGetUniformLocation(program.id, 'colormap')
glUniform1i(loc, 0)
# Work on GL_TEXTURE_1
glActiveTexture(GL_TEXTURE1)
# Get the location of the heightmap
loc = glGetUniformLocation(program.id, 'heightmap')
# If the use of heightmaps is enabled, this must mean we are
# rendering the stimuli
if process_stimuli:
# Get the texture for heightmap
heightmap = heightmap.get_texture()
# Bind the displacement map
glBindTexture(heightmap.target, heightmap.id)
# Pass the variable colormap to the loc for heightmap in
# the vertex shader
glUniform1i(loc, 1)
glActiveTexture(GL_TEXTURE2)
loc = glGetUniformLocation(program.id, 'normalmap')
normalmap = normalmap.get_texture()
glBindTexture(normalmap.target, normalmap.id)
glUniform1i(loc, 2)
# ----------------------------------------------------------
# HANDLE LIGHTING VARIABLES
# ----------------------------------------------------------
# Get the location of the light position and pass it to the
# shader
# loc = glGetUniformLocation(program.id, 'light_position')
# glUniform3fv(loc, NUM_LIGHTS, self.light_position)
# Get the location of the light color and pass it to the shader
# loc = glGetUniformLocation(program.id, 'light_color')
# glUniform3fv(loc, NUM_LIGHTS, self.light_color)
loc = glGetUniformLocation(program.id, 'light_direction')
glUniform3fv(loc, 1, LIGHT_DIRECTION)
# ----------------------------------------------------------
# HANDLE ENABLERS
# ----------------------------------------------------------
# Get the location of the enable_vertex variable and pass enabled
# to it
loc = glGetUniformLocation(program.id, 'process_stimuli')
glUniform1iv(loc, 1, process_stimuli)
loc = glGetUniformLocation(program.id, 'per_pixel')
glUniform1iv(loc, 1, PER_PIXEL)
# ----------------------------------------------------------
# HANDLE VERTEX BUFFER OBJECTS
# ----------------------------------------------------------
# loc = glGetAttribLocation(program.id, 'vertVertex')
# glVertexAttribPointer(loc, 2, GL_FLOAT, GL_FALSE, 0, None)
# glEnableVertexAttribArray(loc)
# loc = glGetAttribLocation(program.id, 'vertTexCoord')
# if process_stimuli:
# glVertexAttribPointer(loc, 2, GL_FLOAT, GL_FALSE, 0,
# self.stimuli_stride)
# else:
# glVertexAttribPointer(loc, 2, GL_FLOAT, GL_FALSE, 0,
# self.message_stride)
# glEnableVertexAttribArray(loc)
# loc = glGetAttribLocation(program.id, 'vertNormal')
# if process_stimuli:
# glVertexAttribPointer(loc, 3, GL_FLOAT, GL_FALSE, 0,
# self.stimuli_stride * 2)
# else:
# glVertexAttribPointer(loc, 3, GL_FLOAT, GL_FALSE, 0,
# self.message_stride * 2)
# glEnableVertexAttribArray(loc)
# ------------------------------------------------------------------
# HANDLE TEXTURE
# ------------------------------------------------------------------
def assign_texture(self, texture, width=WIDTH, height=HEIGHT):
"""
Assign the texture for viewing in OpenGL
"""
# Bind the texture
print texture.get_texture().id
glBindTexture(GL_TEXTURE_2D, texture.get_texture().id)
# Assign 2D texture
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGBA,
GL_UNSIGNED_BYTE, pixel_access(texture))
# Settings for use of the texture
glPixelStorei(GL_UNPACK_ALIGNMENT, 1)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL)
# ------------------------------------------------------------------
# HANDLE OPENGL DRAWING
# ------------------------------------------------------------------
def draw(self, render_stimuli=False, rot=0.0):
"""
General draw module that must decide between the draw module
to use. It can either render a stimuli image or non-stimuli
message or fixation point
"""
for count, color_buffer in enumerate(self.buffers):
glDrawBuffer(color_buffer)
# Clear the screen and the depth buffer
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
if ENABLE_SHADER and GLSL_VERSION == 330:
self.projection.set_projection_matrix(self.projection\
.eyeshiftset[count])
else:
self.projection.set_perspective(50.0)
# If not drawing the stimuli, we can reset the geometry
if not rot:
# Initialize the geometry each time, to reset it
self.__init_geometry()
if render_stimuli:
translate = self.translate_stimuli
else:
translate = self.translate_message
if not count:
rot = deg_to_rad(-rot)
for x, y in translate:
self.translation['Z'] = STIMULI_DEPTH
self.translation['X'] = x * SCALE_X
self.translation['Y'] = y * cos(rot) * SCALE_Y
if y:
self.translation['Z'] += (y * sin(rot) * SCALE_Y)
# Now set the values
if ENABLE_SHADER and GLSL_VERSION == 330:
self.modelview.set_matrix(self.rotation, self.scale,
self.translation)
self.__pass_matrix()
else:
self.__set_geometry()
# For testing purposes only
# self.__print_matrices()
# If we must render_stimuli, we call self.__draw_model
if rot:
self.__draw_model()
# If we must render a non-stimuli image,
# we call self.__draw_message
else:
self.__draw_message()
def __pass_matrix(self):
loc = glGetUniformLocation(self.shader.id, 'ProjectionMatrix')
glUniformMatrix4fv(loc, 1, GL_FALSE, self.projection.matrix)
loc = glGetUniformLocation(self.shader.id, 'ModelViewMatrix')
glUniformMatrix4fv(loc, 1, GL_FALSE, self.modelview.matrix)
loc = glGetUniformLocation(self.shader.id, 'NormalMatrix')
glUniformMatrix3fv(loc, 1, GL_FALSE, self.modelview.normal)
def __print_matrices(self):
print 'GL_PROJECTION_MATRIX:'
if ENABLE_SHADER:
print self.projection.matrix
else:
print glGetFloatv(GL_PROJECTION_MATRIX)
print 'GL_MODELVIEW_MATRIX:'
if ENABLE_SHADER:
print self.modelview.matrix
else:
print glGetFloatv(GL_MODELVIEW_MATRIX)
def __draw_axis(self):
"""
Draw the three axes to indicate their positioning
DEPRECATED
"""
glBegin(GL_LINES)
# Draw line for X axis
glColor3f(1.0, 0.0, 0.0)
glVertex3f(0.0, 0.0, 0.0)
glVertex3f(1.0, 0.0, 0.0)
# Draw line for Y axis
glColor3f(0.0, 1.0, 0.0)
glVertex3f(0.0, 0.0, 0.0)
glVertex3f(0.0, 1.0, 0.0)
# Draw line for Z axis
glColor3f(0.0, 0.0, 1.0)
glVertex3f(0.0, 0.0, 0.0)
glVertex3f(0.0, 0.0, 1.0)
glEnd()
def __draw_message(self):
"""
Draw the message or fixation point
"""
# Draw the quadrilateral mapping it to the texture
glDrawArrays(GL_QUADS, 0, 4)
def __draw_model(self):
"""
Draw the stimulus
"""
points = (WIDTH / STEP_SIZE) * (HEIGHT / STEP_SIZE) * 4
# If set to render solid, render the solid version
if RENDER_SOLID:
# Start drawing the quadrilateral
glDrawArrays(GL_QUADS, 0, points)
# Else produce wireframe
else:
# Draw lines to indicate the wireframe
glDrawArrays(GL_LINES, 0, points)
def __init_projection(self, args):
self.projection = Projection(args[0], args[1], args[2])
def __init__(self, data=None, projection=None, geometry=None,
name='', keywords=None, style_info=None):
"""Initialise object with either geometry or filename
Input
data: Can be either
* a filename of a vector file format known to GDAL
* List of dictionaries of fields associated with
point coordinates
* None
projection: Geospatial reference in WKT format.
Only used if geometry is provide as a numeric array,
geometry: A list of either point coordinates or polygons
name: Optional name for layer.
Only used if geometry is provide as a numeric array
keywords: Optional dictionary with keywords that describe the
layer. When the layer is stored, these keywords will
be written into an associated file with extension
.keywords.
Keywords can for example be used to display text
about the layer in a web application.
Note that if data is a filename, all other arguments are ignored
as they will be inferred from the file.
The geometry type will be inferred from the dimensions of geometry.
If each entry is one set of coordinates the type will be ogr.wkbPoint,
if it is an array of coordinates the type will be ogr.wkbPolygon.
"""
if data is None and projection is None and geometry is None:
# Instantiate empty object
self.name = name
self.projection = None
self.geometry = None
self.geometry_type = None
self.filename = None
self.data = None
self.extent = None
self.keywords = {}
self.style_info = {}
return
if isinstance(data, basestring):
self.read_from_file(data)
else:
# Assume that data is provided as sequences provided as
# arguments to the Vector constructor
# with extra keyword arguments supplying metadata
self.name = name
self.filename = None
if keywords is None:
self.keywords = {}
else:
msg = ('Specified keywords must be either None or a '
'dictionary. I got %s' % keywords)
assert isinstance(keywords, dict), msg
self.keywords = keywords
if style_info is None:
self.style_info = {}
else:
msg = ('Specified style_info must be either None or a '
'dictionary. I got %s' % style_info)
assert isinstance(style_info, dict), msg
self.style_info = style_info
msg = 'Geometry must be specified'
assert geometry is not None, msg
msg = 'Geometry must be a sequence'
assert is_sequence(geometry), msg
self.geometry = geometry
self.geometry_type = get_geometry_type(geometry)
#msg = 'Projection must be specified'
#assert projection is not None, msg
self.projection = Projection(projection)
self.data = data
if data is not None:
msg = 'Data must be a sequence'
assert is_sequence(data), msg
msg = ('The number of entries in geometry and data '
'must be the same')
assert len(geometry) == len(data), msg
def read_from_file(self, filename):
""" Read and unpack vector data.
It is assumed that the file contains only one layer with the
pertinent features. Further it is assumed for the moment that
all geometries are points.
* A feature is a geometry and a set of attributes.
* A geometry refers to location and can be point, line, polygon or
combinations thereof.
* The attributes or obtained through GetField()
The full OGR architecture is documented at
* http://www.gdal.org/ogr/ogr_arch.html
* http://www.gdal.org/ogr/ogr_apitut.html
Examples are at
* danieljlewis.org/files/2010/09/basicpythonmap.pdf
* http://invisibleroads.com/tutorials/gdal-shapefile-points-save.html
* http://www.packtpub.com/article/geospatial-data-python-geometry
"""
basename, _ = os.path.splitext(filename)
# Look for any keywords
self.keywords = read_keywords(basename + '.keywords')
# FIXME (Ole): Should also look for style file to populate style_info
# Determine name
if 'title' in self.keywords:
vectorname = self.keywords['title']
else:
# Use basename without leading directories as name
vectorname = os.path.split(basename)[-1]
self.name = vectorname
self.filename = filename
self.geometry_type = None # In case there are no features
fid = ogr.Open(filename)
if fid is None:
msg = 'Could not open %s' % filename
raise IOError(msg)
# Assume that file contains all data in one layer
msg = 'Only one vector layer currently allowed'
if fid.GetLayerCount() > 1:
msg = ('WARNING: Number of layers in %s are %i. '
'Only the first layer will currently be '
'used.' % (filename, fid.GetLayerCount()))
raise Exception(msg)
layer = fid.GetLayerByIndex(0)
# Get spatial extent
self.extent = layer.GetExtent()
# Get projection
p = layer.GetSpatialRef()
self.projection = Projection(p)
# Get number of features
N = layer.GetFeatureCount()
# Extract coordinates and attributes for all features
geometry = []
data = []
for i in range(N):
feature = layer.GetFeature(i)
if feature is None:
msg = 'Could not get feature %i from %s' % (i, filename)
raise Exception(msg)
# Record coordinates ordered as Longitude, Latitude
G = feature.GetGeometryRef()
if G is None:
msg = ('Geometry was None in filename %s ' % filename)
raise Exception(msg)
else:
self.geometry_type = G.GetGeometryType()
if self.geometry_type == ogr.wkbPoint:
geometry.append((G.GetX(), G.GetY()))
elif self.geometry_type == ogr.wkbLineString:
M = G.GetPointCount()
coordinates = []
for j in range(M):
coordinates.append((G.GetX(j), G.GetY(j)))
# Record entire line as an Mx2 numpy array
geometry.append(numpy.array(coordinates,
dtype='d',
copy=False))
elif self.geometry_type == ogr.wkbPolygon:
ring = G.GetGeometryRef(0)
M = ring.GetPointCount()
coordinates = []
for j in range(M):
coordinates.append((ring.GetX(j), ring.GetY(j)))
# Record entire polygon ring as an Mx2 numpy array
geometry.append(numpy.array(coordinates,
dtype='d',
copy=False))
#elif self.geometry_type == ogr.wkbMultiPolygon:
# # FIXME: Unpact multiple polygons to simple polygons
# # For hints on how to unpack see
#http://osgeo-org.1803224.n2.nabble.com/
#gdal-dev-Shapefile-Multipolygon-with-interior-rings-td5391090.html
# ring = G.GetGeometryRef(0)
# M = ring.GetPointCount()
# coordinates = []
# for j in range(M):
# coordinates.append((ring.GetX(j), ring.GetY(j)))
# # Record entire polygon ring as an Mx2 numpy array
# geometry.append(numpy.array(coordinates,
# dtype='d',
# copy=False))
else:
msg = ('Only point, line and polygon geometries are '
'supported. '
'Geometry type in filename %s '
'was %s.' % (filename,
self.geometry_type))
raise Exception(msg)
# Record attributes by name
number_of_fields = feature.GetFieldCount()
fields = {}
for j in range(number_of_fields):
name = feature.GetFieldDefnRef(j).GetName()
# FIXME (Ole): Ascertain the type of each field?
# We need to cast each appropriately?
# This is issue #66
# (https://github.com/AIFDR/riab/issues/66)
#feature_type = feature.GetFieldDefnRef(j).GetType()
fields[name] = feature.GetField(j)
#print 'Field', name, feature_type, j, fields[name]
data.append(fields)
# Store geometry coordinates as a compact numeric array
self.geometry = geometry
self.data = data
def __init__( self, **kwargs ): ## get the Radius of Influence for the Barnes Analysis Projection.__init__( self, **kwargs ) self.RoI = kwargs.get( 'RoI', 80000 )
class Layer(object):
"""Common class for geospatial layers
"""
def __init__(self, name=None, projection=None,
keywords=None, style_info=None,
sublayer=None):
"""Common constructor for all types of layers
See docstrings for class Raster and class Vector for details.
"""
# Name
msg = ('Specified name must be a string or None. '
'I got %s with type %s' % (name, str(type(name))[1:-1]))
verify(isinstance(name, basestring) or name is None, msg)
self.name = name
# Projection
self.projection = Projection(projection)
# Keywords
if keywords is None:
self.keywords = {}
else:
msg = ('Specified keywords must be either None or a '
'dictionary. I got %s' % keywords)
verify(isinstance(keywords, dict), msg)
self.keywords = keywords
# Style info
if style_info is None:
self.style_info = {}
else:
msg = ('Specified style_info must be either None or a '
'dictionary. I got %s' % style_info)
verify(isinstance(style_info, dict), msg)
self.style_info = style_info
# Defaults
self.sublayer = sublayer
self.filename = None
self.data = None
def __ne__(self, other):
"""Override '!=' to allow comparison with other projection objecs
"""
return not self == other
def get_name(self):
return self.name
def set_name(self, name):
self.name = name
def get_filename(self):
return self.filename
def get_projection(self, proj4=False):
"""Return projection of this layer as a string
"""
return self.projection.get_projection(proj4)
def get_keywords(self, key=None):
"""Return a copy of the keywords dictionary
Args:
* key (optional): If specified value will be returned for key only
"""
if key is None:
return self.keywords.copy()
else:
if key in self.keywords:
return self.keywords[key]
else:
msg = ('Keyword %s does not exist in %s: Options are '
'%s' % (key, self.get_name(), self.keywords.keys()))
raise Exception(msg)
def get_style_info(self):
"""Return style_info dictionary
"""
return self.style_info
def get_impact_summary(self):
"""Return 'impact_summary' keyword if present. Otherwise ''.
"""
if 'impact_summary' in self.keywords:
return self.keywords['impact_summary']
else:
return ''
def get_total_needs(self):
"""Return 'total_needs' keyword if present. Otherwise ''.
"""
if 'total_needs' in self.keywords:
return self.keywords['total_needs']
else:
return ''
def get_style_type(self):
"""Return style type of a layer. If not found, return None
"""
if self.style_info is None:
return None
return self.style_info.get('style_type', None)
# Layer properties used to identify their types
@property
def is_inasafe_spatial_object(self):
return True
@property
def is_raster(self):
if 'Raster' in str(self.__class__):
return True
else:
return False
@property
def is_vector(self):
if 'Vector' in str(self.__class__):
return True
else:
return False
