def toSphericalMercator(inputFile,outputFile):
# Open the LAS file and reproject to Pseudo-Mercator
# WGS 84 / Pseudo-Mercator -- Spherical Mercator, Google Maps, OpenStreetMap, Bing, ArcGIS, ESRI
targetProjection = srs.SRS()
targetProjection.set_userinput('epsg:3857') # Ending projection ( http://epsg.io/3857 )
inf = file.File(inputFile, header=None, mode='r', in_srs=None , out_srs=targetProjection)
inh = inf.header
# If the height is in US Feets scale them into meters
if (inh.srs.proj4.find('+units=us-ft')):
scaleZ = 0.3048006096012192
# Create the out put file.
outh = header.Header()
outh.dataformat_id = 1
outh.scale = [0.01,0.01,0.01]
outh.offset = [0.0,0.0,-0.0]
outsrs = srs.SRS()
outsrs.set_userinput('epsg:3857')
outh.srs = outsrs
outh.schema = inh.schema
# Open file
outf = file.File(outputFile, mode='w', header=outh)
# filter the outside the bBox (projected)
for p in inf:
p.z = p.z * scaleZ
outf.write(p)
outf.close();
def __init__(self, arguments, options=None):
self.connection = None
self.output = None
self.sql = None
self.opts = options
self.construct_parser()
self.options, self.args = self.parser.parse_args(args=arguments)
if self.args:
self.options.connection = self.args[0]
if not self.options.output:
try:
self.options.output = self.args[1]
except IndexError:
self.options.output = 'output.las'
if not self.options.sql:
try:
self.options.sql = self.args[2]
except IndexError:
raise self.parser.error("No SQL was provided to select the point cloud!")
if self.options.output:
self.options.output = os.path.abspath(self.options.output)
if os.path.isdir(self.options.output):
raise self.parser.error("Output '%s' is a directory, not a file " % self.options.output)
if os.path.exists(self.options.output):
if not self.options.overwrite:
raise self.parser.error("Output file '%s' exists, but you have not selected the --overwrite option" % self.options.output)
else:
raise self.parser.error("No output was specified")
try:
self.options.precision = int(self.options.precision)
if not self.options.precision:
raise self.parser.error("Precision cannot be 0")
except:
raise self.parser.error("Precision was not an number")
self.minx = None
self.miny = None
self.minz = None
self.maxx = None
self.maxy = None
self.maxz = None
self.count = 0
self.first_point = True
self.cloud_column = True
self.header = None
self.points = []
if self.options.srs:
self.srs = srs.SRS()
self.srs.set_userinput(self.options.srs)
print 'setting srs to %s' %self.srs.proj4
else:
self.srs = None
def cropTile(inputFile, x, y, z):
# Get the edges of a tile
south, west, north, east = tileEdges(x, y, z)
scaleZ = 1.0
# Open the LAS file and reproject to Pseudo-Mercator
# WGS 84 / Pseudo-Mercator -- Spherical Mercator, Google Maps, OpenStreetMap, Bing, ArcGIS, ESRI
targetProjection = srs.SRS()
targetProjection.set_userinput(
'epsg:3857') # Ending projection ( http://epsg.io/3857 )
inf = file.File(inputFile,
header=None,
mode='r',
in_srs=None,
out_srs=targetProjection)
inh = inf.header
# If the height is in US Feets scale them into meters
if (inh.srs.proj4.find('+units=us-ft')):
scaleZ = 0.3048006096012192
# Create the out put file.
outh = header.Header()
outh.dataformat_id = 1
outh.scale = [0.01, 0.01, 0.01]
outh.offset = [0.0, 0.0, -0.0]
outsrs = srs.SRS()
outsrs.set_userinput('epsg:3857')
outh.srs = outsrs
outh.schema = inh.schema
# Open file
outf = file.File(str(int(x)) + '-' + str(int(y)) + '-' + str(int(z)) +
'.las',
mode='w',
header=outh)
# filter the outside the bBox (projected)
for p in inf:
if west <= p.x <= east and south <= p.y <= north:
p.z = p.z * scaleZ
outf.write(p)
print '%.2f,%.2f,%.2f' % (p.x, p.y, p.z)
outf.close()
def get_srid(self, srid):
cur = self.con.cursor()
if not srid: return ''
cur.execute('SELECT WKTEXT,WKTEXT3D from MDSYS.CS_SRS where srid=%d'%(int(srid)))
res = cur.fetchall()
for wkt in res:
text = wkt[0]
text3d = wkt[1]
s = srs.SRS()
if text3d:
s.wkt = text3d
else:
s.wkt = text
return s
def las2ply(inputFile, outputFile):
# Open the LAS file and reproject to Pseudo-Mercator
# WGS 84 / Pseudo-Mercator -- Spherical Mercator, Google Maps, OpenStreetMap, Bing, ArcGIS, ESRI
targetProjection = srs.SRS()
targetProjection.set_userinput(
'epsg:3857') # Ending projection ( http://epsg.io/3857 )
inFile = file.File(inputFile,
header=None,
mode='r',
in_srs=None,
out_srs=targetProjection)
# Clear file
open(outputFile, 'w').close()
plyHeader = '''ply
format ascii 1.0
element vertex ''' + str(inHeader.count) + '''
property float x
property float y
property float z
property uchar red
property uchar green
property uchar blue
end_header
'''
newLine = ''
newFile = open(outputFile, 'w')
for p in inFile:
newline = '%.2f %.2f %.2f %i %i %i' % (p.x, p.y, p.z, p.intensity,
p.intensity, p.intensity)
newFile.write(newline + "\n")
newFile.close()
line_prepend(outputFile, plyHeader)
def process(self):
self.print_options()
self.connect()
self.cur = self.con.cursor()
# self.cur.execute(self.options.sql)
# clouds = []
#
# res = self.cur.fetchall()
# for row in res:
# for column in row:
# try:
# column.BASE_TABLE_COL
# clouds.append(column)
# except AttributeError:
# # This column isn't a cloud
# pass
# points = []
# write an actual cloud column
# for cloud in clouds:
# cur2 = self.con.cursor()
#
# cur2.execute('SELECT NUM_POINTS, POINTS, BLK_EXTENT FROM %s'% cloud.BLK_TABLE)
# for num_points, blob, extent in cur2:
# # set the SRS from the first geometry
# if not self.srs:
# self.srs = self.get_srid(extent.SDO_SRID)
# b = blob.read()
# points.append(self.get_points(num_points,b))
# num_pts_index, blob_index = self.get_block_indexes(self.cur)
# if we don't have a cloud object, we'll assume that NUM_POINTS and
# the POINTS blob exist in our already queried cursor
clouds = None
points = []
print 'have srs?: %s' % bool(self.srs)
self.output = self.open_output()
if not clouds:
cur = self.cur.execute(self.options.sql)
num_pts_index, blob_index = self.get_block_indexes(cur)
for row in cur:
num_points = row[num_pts_index]
blob = row[blob_index].read()
self.write_points(num_points, blob)
# try to set the SRS
if not self.srs:
for col in row:
try:
col.SDO_SRID
self.srs = self.get_srid(col.SDO_SRID)
break
except AttributeError:
continue
# if we still haven't been able to set an SRS, don't try
# to anymore
if not self.srs:
self.srs = srs.SRS()
self.rewrite_header()
p.classification = 0
p.scan_angle = -13
p.x = 470692.447538
p.y = 4602888.904642
p.z = 16.0
c = color.Color()
c.red = 255
c.green = 12
c.blue = 234
p.color = c
p.time = datetime.datetime(2008, 3, 19)
p.classification = 2
p.return_number = 2
s = srs.SRS()
s.proj4 = '+proj=utm +zone=15 +ellps=NAD83 +datum=NAD83 +units=m +no_defs '
g = guid.GUID(key='8388f1b8-aa1b-4108-bca3-6bc68e7b062e')
number_of_points = 1
def write_file(version, format):
h = header.Header()
h.guid = g
h.date = datetime.datetime.now()
h.dataformat_id = format
h.major_version = 1
h.minor_version = version
h.min = [p.x, p.y, p.z]
h.max = [p.x, p.y, p.z]
def __init__(self, arguments, options=None):
self.las = None
self.image = None
self.output = None
self.sql = None
self.opts = options
self.construct_parser()
self.options, self.args = self.parser.parse_args(args=arguments)
if not self.options.image:
try:
self.options.image = self.args[1]
self.options.image = gdal.Open(self.options.image)
except IndexError:
raise self.parser.error(
"No input image was selected to use for color values!")
except Exception as inst:
raise self.parser.error("Unable to open GDAL image: %s" %
inst.args[0])
if not self.options.bands:
self.options.bands = (1, 2, 3)
else:
self.options.bands = [
int(i) for i in self.options.bands.split(',')
]
if not self.options.output:
try:
self.options.output = self.args[2]
except IndexError:
self.options.output = 'output.las'
if self.options.output:
self.options.output = os.path.abspath(self.options.output)
if os.path.isdir(self.options.output):
raise self.parser.error(
"Output '%s' is a directory, not a file " %
self.options.output)
if os.path.exists(self.options.output):
if not self.options.overwrite:
raise self.parser.error(
"Output file '%s' exists, but you have not selected the --overwrite option"
% self.options.output)
else:
raise self.parser.error("No output was specified")
if self.options.target_srs:
s = srs.SRS()
s.set_userinput(self.options.target_srs)
self.options.target_srs = s
if self.options.assign_srs:
s = srs.SRS()
s.set_userinput(self.options.assign_srs)
self.options.assign_srs = s
if self.args:
self.options.las = self.args[0]
try:
f = self.options.las
self.options.las = lasfile.File(f, mode='r')
if self.options.assign_srs:
# if we're assigning an SRS, take the header from the
# file, grab it, and then stick our SRS on it and use it
# to read the file
h = self.options.las.header
h.srs = self.options.assign_srs
self.options.las = lasfile.File(f, header=h)
except Exception as inst:
raise self.parser.error("Unable to open input LAS file: %s" %
inst.args[0])
