def draw_title(m,ctx,text,size=10,color=mapnik.Color('black')):
""" Draw a Map Title near the top of a page."""
middle = m.width/2.0
ctx.set_source_rgba(*cairo_color(color))
ctx.select_font_face("DejaVu Sans Book", cairo.FONT_SLANT_NORMAL, cairo.FONT_WEIGHT_NORMAL)
ctx.set_font_size(size)
x_bearing, y_bearing, width, height = ctx.text_extents(text)[:4]
ctx.move_to(middle - width / 2 - x_bearing, 20.0 - height / 2 - y_bearing)
ctx.show_text(text)
def __init__(self, lower_borders):
self.buckets = []
self.stats = collections.defaultdict(int)
for i, l in enumerate(lower_borders):
p = mapnik.PolygonSymbolizer()
c = 100.0 - i * 100.0 / len(lower_borders)
p.fill = mapnik.Color('rgb({}%,0%,0%)'.format(c))
p.gamma = 0.0
self.buckets.append((l, p))
def add_base_style(m):
# polygon styles
polygon_symbolizer = mapnik.PolygonSymbolizer()
polygon_symbolizer.fill = mapnik.Color(poly_fill)
# line styles
line_symbolizer = mapnik.LineSymbolizer()
line_symbolizer.stroke = mapnik.Color(line_color)
line_symbolizer.stroke_width = line_width
# append styles
rule = mapnik.Rule()
rule.symbols.append(line_symbolizer)
rule.symbols.append(polygon_symbolizer)
style = mapnik.Style()
style.rules.append(rule)
m.append_style('My Style',style)
return m
def mapnik_style(self):
import mapnik
polygon_style = mapnik.Style()
ps = mapnik.PolygonSymbolizer(mapnik.Color('#551A8B'))
ps.fill_opacity = 0.9
ls = mapnik.LineSymbolizer(mapnik.Color('#ffffff'),0.75)
ls.stroke_opacity = 0.9
ts = mapnik.TextSymbolizer('name','DejaVu Sans Bold',11,mapnik.Color('#555555'))
ts.displacement(15,15)
ts.halo_fill = mapnik.Color('white')
ts.halo_radius = 1
ts.opacity = 0.5
r = mapnik.Rule()
r.symbols.append(ps)
r.symbols.append(ls)
r.symbols.append(ts)
polygon_style.rules.append(r)
return polygon_style
def test_apply_opacity():
im = mapnik.Image(4, 4)
im.fill(mapnik.Color(128, 128, 128, 128))
im.apply_opacity(0.75)
c = im.get_pixel(0, 0, True)
eq_(c.r, 128)
eq_(c.g, 128)
eq_(c.b, 128)
eq_(c.a, 96)
def test_stop_label():
stop = mapnik.ColorizerStop(1, mapnik.COLORIZER_LINEAR,
mapnik.Color('red'))
assert not stop.label
label = u"32º C"
if not PYTHON3:
label = label.encode('utf8')
stop.label = label
assert stop.label == label, stop.label
def tms(z, x, y, service):
# (4370311.220000, 4911352.860000) - (4403732.650000, 4958349.910000)
# Extent: (4370177.610000, 4908530.650000) - (4411390.670000, 4958581.500000)
bbox = dict(minx=4370177, miny=4908530, maxx=4411390, maxy=4958581)
step = max(bbox['maxx'] - bbox['minx'], bbox['maxy'] - bbox['miny']) / 2**z
extents = dict()
extents['tms'] = (bbox['minx'] + x * step, bbox['miny'] + y * step,
bbox['minx'] + (x + 1) * step,
bbox['miny'] + (y + 1) * step)
extents['xyz'] = (bbox['minx'] + x * step, bbox['maxy'] - (y + 1) * step,
bbox['minx'] + (x + 1) * step, bbox['maxy'] - y * step)
tile = dict(width=256, height=256)
map = mapnik.Map(tile['width'], tile['height'])
map.background = mapnik.Color('steelblue')
mapnik.load_map(map, 'tile_server/style/styles.xml')
layer = mapnik.Layer('point')
ds = mapnik.PostGIS(host='127.0.0.1',
dbname='isogd_sevastopol',
user='******',
password='******',
table='tableapi.table_test_2_points_2')
layer.datasource = ds
pdb.set_trace()
style = mapnik.Style()
rule = mapnik.Rule()
point_symbolizer = mapnik.PointSymbolizer()
point_symbolizer.file = "/style/point_style.png"
# pdb.set_trace()
rule.symbols.append(point_symbolizer)
style.rules.append(rule)
map.append_style('My Style', style)
map.zoom_all()
mapnik.render_to_file(map, 'altay.png', 'png')
box = mapnik.Box2d(*extents.get(service))
# map.zoom_all()
map.zoom_to_box(box)
mapnik.render_to_file(map, 'world.png', 'png')
im = mapnik.Image(map.width, map.height)
mapnik.render(map, im)
output = im.tostring('png')
# box = mapnik.Box2d(*extents.get(service))
# map.zoom_to_box(box)
# mapnik.render_to_file(map, 'world.png', 'png')
# im = mapnik.Image(map.width, map.height)
# mapnik.render(map, im)
# output = im.tostring('png')
# # Передаём ответ клиенту
return output
def test_dataraster_coloring():
srs = '+init=epsg:32630'
lyr = mapnik.Layer('dataraster')
if 'gdal' in mapnik.DatasourceCache.plugin_names():
lyr.datasource = mapnik.Gdal(
file='../data/raster/dataraster.tif',
band=1,
)
lyr.srs = srs
_map = mapnik.Map(256, 256, srs)
style = mapnik.Style()
rule = mapnik.Rule()
sym = mapnik.RasterSymbolizer()
# Assigning a colorizer to the RasterSymbolizer tells the later
# that it should use it to colorize the raw data raster
sym.colorizer = mapnik.RasterColorizer(mapnik.COLORIZER_DISCRETE,
mapnik.Color("transparent"))
for value, color in [
(0, "#0044cc"),
(10, "#00cc00"),
(20, "#ffff00"),
(30, "#ff7f00"),
(40, "#ff0000"),
(50, "#ff007f"),
(60, "#ff00ff"),
(70, "#cc00cc"),
(80, "#990099"),
(90, "#660066"),
(200, "transparent"),
]:
sym.colorizer.add_stop(value, mapnik.Color(color))
rule.symbols.append(sym)
style.rules.append(rule)
_map.append_style('foo', style)
lyr.styles.append('foo')
_map.layers.append(lyr)
_map.zoom_to_box(lyr.envelope())
im = mapnik.Image(_map.width, _map.height)
mapnik.render(_map, im)
imdata = im.tostring()
# we have some values in the [20,30) interval so check that they're colored
assert contains_word('\xff\xff\x00\xff', imdata)
def test_render_image_to_string():
im = mapnik.Image(256, 256)
im.fill(mapnik.Color('black'))
eq_(im.painted(), False)
eq_(im.is_solid(), True)
s = im.tostring()
if PYTHON3:
eq_(s, 256 * 256 * b'\x00\x00\x00\xff')
else:
eq_(s, 256 * 256 * '\x00\x00\x00\xff')
def to_mapnik(self):
sym = mapnik.ShieldSymbolizer(
self.name,
self.face_name,
self.size or 10,
mapnik.Color(str(self.color)) if self.color else mapnik.Color('black'),
self.file,
self.type,
self.width,
self.height)
sym.character_spacing = self.character_spacing or sym.character_spacing
sym.line_spacing = self.line_spacing or sym.line_spacing
sym.spacing = self.spacing or sym.line_spacing
sym.minimum_distance = self.minimum_distance or sym.minimum_distance
if self.fontset:
sym.fontset = self.fontset.value
return sym
def test_render_image_to_string():
i = mapnik.Image(256, 256)
i.background = mapnik.Color('black')
s = i.tostring()
eq_(s, 256 * 256 * '\x00\x00\x00\xff')
s = i.tostring('png')
def test_background_image_and_background_color():
m = mapnik.Map(8,8)
m.background = mapnik.Color('rgba(255,255,255,.5)')
m.background_image = '../data/images/stripes_pattern.png'
im = mapnik.Image(m.width,m.height)
mapnik.render(m,im)
# note: data loss due to rounding as per https://github.com/mapnik/mapnik/issues/1519
# means that background will roundtrip to 253 not 255
#eq_(get_unique_colors(im),['rgba(255,255,255,128)', 'rgba(74,74,74,255)'])
eq_(get_unique_colors(im),['rgba(253,253,253,128)', 'rgba(74,74,74,255)'])
def test_stroke_init():
s = mapnik.Stroke()
eq_(s.width, 1)
eq_(s.opacity, 1)
eq_(s.color, mapnik.Color('black'))
eq_(s.line_cap, mapnik.line_cap.BUTT_CAP)
eq_(s.line_join, mapnik.line_join.MITER_JOIN)
eq_(s.gamma, 1.0)
s = mapnik.Stroke(mapnik.Color('blue'), 5.0)
s.gamma = .5
eq_(s.width, 5)
eq_(s.opacity, 1)
eq_(s.color, mapnik.Color('blue'))
eq_(s.gamma, .5)
eq_(s.line_cap, mapnik.line_cap.BUTT_CAP)
eq_(s.line_join, mapnik.line_join.MITER_JOIN)
def test_jpeg_round_trip():
filepath = '/tmp/mapnik-jpeg-io.jpeg'
im = mapnik.Image(255, 267)
im.background = mapnik.Color('rgba(1,2,3,.5)')
im.save(filepath, 'jpeg')
im2 = mapnik.Image.open(filepath)
eq_(im.width(), im2.width())
eq_(im.height(), im2.height())
eq_(len(im.tostring()), len(im2.tostring()))
eq_(len(im.tostring('jpeg')), len(im2.tostring('jpeg')))
def make_map():
try:
import mapnik
except:
import mapnik
m = mapnik.Map(600, 300)
m.background = mapnik.Color("steelblue")
s = mapnik.Style() # style object to hold rules
r = mapnik.Rule() # rule object to hold symbolizers
# to fill a polygon we create a PolygonSymbolizer
polygon_symbolizer = mapnik.PolygonSymbolizer(mapnik.Color('#f2eff9'))
r.symbols.append(
polygon_symbolizer) # add the symbolizer to the rule object
# to add outlines to a polygon we create a LineSymbolizer
line_symbolizer = mapnik.LineSymbolizer(mapnik.Color('rgb(50%,50%,50%)'),
0.1)
r.symbols.append(line_symbolizer) # add the symbolizer to the rule object
s.rules.append(r) # now add the rule to the style and we're done
m.append_style(
'My Style',
s) # Styles are given names only as they are applied to the map
# South Carolina 400 Scale Grid. http://gis.sc.gov/data.html
ds = mapnik.Shapefile(file='400/400.shp')
print(ds.envelope())
# Box2d(1290000.0,70000.0,2750000.0,1240000.0)
layer = mapnik.Layer(
'SouthCarolina'
) # new layer called 'world' (we could name it anything)
layer.srs = '+proj=lcc +lat_1=32.5 +lat_2=34.83333333333334 +lat_0=31.83333333333333 +lon_0=-81 +x_0=609600 +y_0=0 +datum=NAD83 +units=ft +no_defs '
# note: layer.srs will default to '+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs'
layer.datasource = ds
layer.styles.append('My Style')
m.layers.append(layer)
m.zoom_all()
# Write the data to a png image called world.png the current directory
mapnik.render_to_file(m, 'sc.png', 'png')
def test_psql_error_should_give_back_connections_opened_for_lower_layers_to_the_pool():
map1 = mapnik.Map(600,300)
s = mapnik.Style()
r = mapnik.Rule()
r.symbols.append(mapnik.PolygonSymbolizer())
s.rules.append(r)
map1.append_style('style',s)
# This layer will fail after a while
buggy_s = mapnik.Style()
buggy_r = mapnik.Rule()
buggy_r.symbols.append(mapnik.PolygonSymbolizer())
buggy_r.filter = mapnik.Filter("[fips] = 'FR'")
buggy_s.rules.append(buggy_r)
map1.append_style('style for buggy layer',buggy_s)
buggy_layer = mapnik.Layer('this layer is buggy at runtime')
# We ensure the query wille be long enough
buggy_layer.datasource = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='(SELECT geom as geom, pg_sleep(0.1), fips::int from world_merc) as failure_tabl',
max_async_connection=2, max_size=2,asynchronous_request = True, geometry_field='geom')
buggy_layer.styles.append('style for buggy layer')
# The query for this layer will be sent, then the previous layer will raise an exception before results are read
forced_canceled_layer = mapnik.Layer('this layer will be canceled when an exception stops map rendering')
forced_canceled_layer.datasource = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='world_merc',
max_async_connection=2, max_size=2, asynchronous_request = True, geometry_field='geom')
forced_canceled_layer.styles.append('style')
map1.layers.append(buggy_layer)
map1.layers.append(forced_canceled_layer)
map1.zoom_all()
map2 = mapnik.Map(600,300)
map2.background = mapnik.Color('steelblue')
s = mapnik.Style()
r = mapnik.Rule()
r.symbols.append(mapnik.LineSymbolizer())
r.symbols.append(mapnik.LineSymbolizer())
s.rules.append(r)
map2.append_style('style',s)
layer1 = mapnik.Layer('layer1')
layer1.datasource = mapnik.PostGIS(dbname=MAPNIK_TEST_DBNAME,table='world_merc',
max_async_connection=2, max_size=2, asynchronous_request = True, geometry_field='geom')
layer1.styles.append('style')
map2.layers.append(layer1)
map2.zoom_all()
# We expect this to trigger a PSQL error
try:
mapnik.render_to_file(map1,'/tmp/mapnik-postgis-test-map1.png', 'png')
# Test must fail if error was not raised just above
eq_(False,True)
except RuntimeError:
pass
# This used to raise an exception before correction of issue 2042
mapnik.render_to_file(map2,'/tmp/mapnik-postgis-test-map2.png', 'png')
def test_clearing_image_data():
im = mapnik.Image(256, 256)
# make sure it equals itself
bytes = im.tostring()
eq_(im.tostring(), bytes)
# set background, then clear
im.fill(mapnik.Color('green'))
eq_(im.tostring() != bytes, True)
# clear image, should now equal original
im.clear()
eq_(im.tostring(), bytes)
def draw_neatline(self, width=10, color=mapnik.Color('black')):
ctx = cairo.Context(self.surface)
w, h = self.m.width, self.m.height
map_pts = [[0, 0], [w, 0], [w, h], [0, h]]
ctx.set_line_width(width)
ctx.set_source_rgba(*cairo_color(color))
ctx.move_to(*map_pts[0])
for pt in map_pts:
ctx.line_to(*pt)
ctx.close_path()
ctx.stroke()
def test_background_image_with_alpha_and_background_color_against_composited_control(
):
m = mapnik.Map(10, 10)
m.background = mapnik.Color('rgba(255,255,255,.5)')
m.background_image = '../data/images/yellow_half_trans.png'
im = mapnik.Image(m.width, m.height)
mapnik.render(m, im)
# create and composite the expected result
im1 = mapnik.Image(10, 10)
im1.background = mapnik.Color('rgba(255,255,255,.5)')
im1.premultiply()
im2 = mapnik.Image(10, 10)
im2.background = mapnik.Color('rgba(255,255,0,.5)')
im2.premultiply()
im1.composite(im2)
im1.demultiply()
# compare image rendered (compositing in `agg_renderer<T>::setup`)
# vs image composited via python bindings
raise Todo("looks like we need to investigate PNG rounding when saving")
eq_(get_unique_colors(im), get_unique_colors(im1))
def qs_to_map(qs, styles=[], srs='+init=epsg:900913', buffer_size=128):
m = mapnik.Map(256, 256, srs)
if buffer_size:
m.buffer_size = buffer_size
m.background = mapnik.Color('transparent')
adapter = PostgisLayer(qs, styles=styles)
lyr = adapter.to_mapnik()
for s in styles:
m.append_style(s['name'], s['obj'])
m.layers.append(lyr)
return m
def main(imagefilename, xmlfilename):
m = mapnik.Map(image_width, image_height)
m.srs = shapefile_projection
m.background = mapnik.Color('lightgrey')
style, envelope = build_stylesheet(shapefile, shapefile_projection,
AGS_prefixes)
mapnik.load_map_from_string(m, style)
m.zoom_to_box(envelope)
mapnik.render_to_file(m, imagefilename)
if xmlfilename:
mapnik.save_map(m, xmlfilename)
def test_background():
im = mapnik.Image(256, 256)
eq_(im.premultiplied(), False)
im.fill(mapnik.Color(32, 64, 125, 128))
eq_(im.premultiplied(), False)
c = im.get_pixel(0, 0, True)
eq_(c.get_premultiplied(), False)
eq_(c.r, 32)
eq_(c.g, 64)
eq_(c.b, 125)
eq_(c.a, 128)
# Now again with a premultiplied alpha
im.fill(mapnik.Color(32, 64, 125, 128, True))
eq_(im.premultiplied(), True)
c = im.get_pixel(0, 0, True)
eq_(c.get_premultiplied(), True)
eq_(c.r, 32)
eq_(c.g, 64)
eq_(c.b, 125)
eq_(c.a, 128)
def addGeneralizedToMap(self, name='My New Style'):
genColor = 'rgb(0%,0%,100%)'
s = mapnik.Style()
r = mapnik.Rule()
if self.symbol_type == 'polygon':
polygon_symbolizer = mapnik.PolygonSymbolizer(mapnik.Color(genColor))
r.symbols.append(polygon_symbolizer)
elif self.symbol_type == 'line':
line_symbolizer = mapnik.LineSymbolizer(mapnik.Color(genColor),2)
r.symbols.append(line_symbolizer)
else:
print self.symbol_type, 'has to be implemented to preview!!!'
s.rules.append(r)
self.mapnik_map.append_style(name,s)
lyr = mapnik.Layer('Generalized geometry from PostGIS')
lyr.datasource = mapnik.PostGIS(host='localhost',user='******',password='******',dbname='meingis',table='(select geom from generalized_line_cache ) as water_ways')
lyr.srs = self.layerSRS
lyr.styles.append(name)
self.mapnik_map.layers.append(lyr)
def to_mapnik(self, mmap, dirs=None):
"""
"""
prev_cwd = getcwd()
if dirs:
chdir(dirs.output)
try:
mmap.srs = self.srs or mmap.srs
if self.background:
mmap.background = mapnik.Color(str(self.background))
ids = (i for i in xrange(1, 999999))
for layer in self.layers:
for style in layer.styles:
sty = mapnik.Style()
for rule in style.rules:
rul = mapnik.Rule('rule %d' % ids.next())
rul.filter = rule.filter and mapnik.Filter(rule.filter.text) or rul.filter
rul.min_scale = rule.minscale and rule.minscale.value or rul.min_scale
rul.max_scale = rule.maxscale and rule.maxscale.value or rul.max_scale
for symbolizer in rule.symbolizers:
if not hasattr(symbolizer, 'to_mapnik'):
continue
sym = symbolizer.to_mapnik()
rul.symbols.append(sym)
sty.rules.append(rul)
mmap.append_style(style.name, sty)
lay = mapnik.Layer(layer.name)
lay.srs = layer.srs or lay.srs
if layer.datasource:
lay.datasource = layer.datasource.to_mapnik()
lay.minzoom = layer.minzoom or lay.minzoom
lay.maxzoom = layer.maxzoom or lay.maxzoom
for style in layer.styles:
lay.styles.append(style.name)
mmap.layers.append(lay)
except:
# pass it along, but first chdir back to the previous directory
# in the finally clause below, to put things back the way they were.
raise
finally:
chdir(prev_cwd)
def addPreviewToMap(self, name):
#self.datasource[1]
#self.layerSRS
#self.symbol_type
#self.filter
#self.scaleDenoms
s = mapnik.Style()
r = mapnik.Rule()
prevColor = self.ui.entry_color.get_text() #'rgb(100%,0%,0%)'
if self.symbol_type == 'polygon':
polygon_symbolizer = mapnik.PolygonSymbolizer(
mapnik.Color(prevColor))
r.symbols.append(polygon_symbolizer)
elif self.symbol_type == 'line':
line_symbolizer = mapnik.LineSymbolizer(mapnik.Color(prevColor), 3)
r.symbols.append(line_symbolizer)
# elif self.symbol_type == 'text':
# t = mapnik.TextSymbolizer('FIELD_NAME', 'DejaVu Sans Book', 10, Color('black'))
# t.halo_fill = Color('white')
# t.halo_radius = 1
# t.label_placement = label_placement.LINE_PLACEMENT
# r.symbols.append(line_symbolizer)
else:
print self.symbol_type, 'has to be implemented to preview!!!'
#print "Filtertest: ",self.filter
if self.filter != None:
#f = mapnik.Expression("[waterway] != ''") #'Expression' stands for 'Filter' as this will be replaced in Mapnik3
r.filter = self.filter #f
r.min_scale = self.scaleDenoms[0]
r.max_scale = self.scaleDenoms[1]
s.rules.append(r)
proof = self.mapnik_map.append_style(name, s)
#print 'Style appending worked!?: ',proof
#ds = mapnik.Shapefile(file='/home/klammer/Software/Quickly/TileGen/tilegen/data/media/testdaten/mercator_polygon/lines-vgtl-27-01-12.shp')
layer = mapnik.Layer('world')
layer.datasource = self.datasource[1] #ds
layer.srs = self.layerSRS #self.mapnik_map.srs
layer.styles.append(name)
self.mapnik_map.layers.append(layer)
def qickTest():
m = mapnik.Map(600, 300)
m.background = mapnik.Color('steelblue')
s = mapnik.Style()
r = mapnik.Rule()
#polygon_symbolizer = mapnik.PolygonSymbolizer(mapnik.Color('#ff00ff'))
#r.symbols.append(polygon_symbolizer)
line_symbolizer = mapnik.LineSymbolizer(
mapnik.Color('rgb(100%,100%,100%)'), 0.1)
r.symbols.append(line_symbolizer)
s.rules.append(r)
m.append_style('My Style', s)
line_symbolizer = mapnik.LineSymbolizer(mapnik.Color('rgb(100%,0%,100%)'),
0.5)
r.symbols.append(line_symbolizer)
s.rules.append(r)
m.append_style('My New Style', s)
ds = mapnik.Shapefile(
file=
'/home/klammer/Software/Quickly/TileGen/tilegen/data/media/testdaten/mercator_polygon/lines-vgtl-27-01-12.shp'
)
layer = mapnik.Layer('world')
layer.datasource = ds
layer.styles.append('My Style')
m.layers.append(layer)
lyr = mapnik.Layer('Generalized geometry from PostGIS')
lyr.datasource = mapnik.PostGIS(host='localhost',
user='******',
password='******',
dbname='meingis',
table='generalized_line_cache')
lyr.srs = layer.srs
lyr.styles.append('My New Style')
m.layers.append(lyr)
m.zoom_all()
mapnik.render_to_file(m, 'world.png', 'png')
print "rendered image to 'world.png'"
def mapnik_plot(shp_file):
m = mapnik.Map(600, 300)
m.background = mapnik.Color('steelblue')
s = mapnik.Style()
r = mapnik.Rule()
# polygon_symbolizer = mapnik.PolygonSymbolizer()
# polygon_symbolizer.fill = mapnik.Color('#f2eff9')
# r.symbols.append(polygon_symbolizer)
line_symbolizer = mapnik.LineSymbolizer()
line_symbolizer.stroke = mapnik.Color('rgb(100%,100%,100%)')
line_symbolizer.stroke_width = 3.0
r.symbols.append(line_symbolizer)
s.rules.append(r)
m.append_style('My Style', s)
ds = mapnik.Shapefile(file=shp_file)
layer = mapnik.Layer('world')
layer.datasource = ds
layer.styles.append('My Style')
m.layers.append(layer)
m.zoom_all()
def do_encoding():
image = None
iterations = 10
results = {}
sortable = {}
def run(func, im, format, t):
global image
image = im
start = time.time()
set = t.repeat(iterations,1)
elapsed = (time.time() - start)
min_ = min(set)*1000
avg = (sum(set)/len(set))*1000
name = func.__name__ + ' ' + format
results[name] = [avg,min_,elapsed*1000,name]
sortable[name] = [avg]
def blank():
eval('image.tostring("%s")' % c)
blank_im = mapnik.Image(512,512)
for c in combinations:
t = Timer(blank)
run(blank,blank_im,c,t)
def solid():
eval('image.tostring("%s")' % c)
solid_im = mapnik.Image(512,512)
solid_im.background = mapnik.Color("#f2efe9")
for c in combinations:
t = Timer(solid)
run(solid,solid_im,c,t)
def many_colors():
eval('image.tostring("%s")' % c)
# lots of colors: http://tile.osm.org/13/4194/2747.png
many_colors_im = mapnik.Image.open('../data/images/13_4194_2747.png')
for c in combinations:
t = Timer(many_colors)
run(many_colors,many_colors_im,c,t)
for key, value in sorted(sortable.iteritems(), key=lambda (k,v): (v,k)):
s = results[key]
avg = str(s[0])[:6]
min_ = str(s[1])[:6]
elapsed = str(s[2])[:6]
name = s[3]
print 'avg: %sms | min: %sms | total: %sms <-- %s' % (min_,avg,elapsed,name)
def add_style_level(self, s, percent):
color = "#{}".format(self.c1000_rainbow.colourAt(percent))
width_multiplier = self.get_width_multiplier(self.zoom)
# unpaved
r = mapnik.Rule()
r.filter = mapnik.Filter(self.filter_condition(False, percent))
ls = mapnik.LineSymbolizer()
ls.stroke = mapnik.Color(color)
ls.stroke_width = 0.1 * width_multiplier
r.symbols.append(ls)
s.rules.append(r)
#paved
r = mapnik.Rule()
r.filter = mapnik.Filter(self.filter_condition(True, percent))
ls = mapnik.LineSymbolizer()
ls.stroke = mapnik.Color(color)
ls.stroke_width = 1 * width_multiplier
r.symbols.append(ls)
s.rules.append(r)
def mapnik_style(self):
try:
import mapnik
except:
import mapnik2 as mapnik
line_style = mapnik.Style()
ls = mapnik.LineSymbolizer(mapnik.Color('#444444'), 1.5)
ls.stroke_opacity = 0.5
r = mapnik.Rule()
r.symbols.append(ls)
line_style.rules.append(r)
return line_style
