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add border to map renderings

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Laura Klünder 2017-10-29 09:32:15 +01:00
parent 737818c5e0
commit bfe1491efc
2 changed files with 24 additions and 8 deletions
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20
src/c3nav/mapdata/utils/svg.py
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@ -63,6 +63,8 @@ class SVGImage:
# keep track of created blur filters to avoid duplicates
self.blurs = set()
self._create_geometry_cache = {}
def get_dimensions_px(self, buffer):
# get dimensions of the image in pixels, with or without buffer
width_px = self.width * self.scale + (self.buffer_px * 2 if buffer else 0)
@ -141,7 +143,7 @@ class SVGImage:
def _trim_decimals(self, data):
# remove trailing zeros from a decimal – yes this is slow, but it greatly speeds up cairo rendering
return re.sub(r'([0-9]+)((\.[1-9])[0-9]+|\.[0-9]+)?', r'\1\3', data)
return re.sub(r'([0-9]+)((\.[1-9])[0-9]+|\.[0-9]+)?', r'\1\2', data)
def _geometry_to_svg(self, geom):
# scale and move geometry and create svg code for it
@ -162,7 +164,12 @@ class SVGImage:
def _create_geometry(self, geometry, attribs='', tag='g'):
# convert a shapely geometry into an svg xml element
return '<'+tag+attribs+'>'+self._geometry_to_svg(geometry)+'</'+tag+'>'
cache_key = (id(geometry), attribs, tag)
result = self._create_geometry_cache.get(cache_key, None)
if result is None:
result = self._geometry_to_svg(geometry)
self._create_geometry_cache[cache_key] = result
return '<'+tag+attribs+'>'+result+'</'+tag+'>'
def register_clip_path(self, geometry):
defid = 'clip'+str(self.clip_path_i)
@ -233,10 +240,13 @@ class SVGImage:
attribs = ' fill="'+(fill_color or 'none')+'"'
if fill_opacity:
attribs += ' fill-opacity="'+str(fill_opacity)[:4]+'"'
if stroke_px:
if stroke_width:
width = stroke_width*self.scale
if stroke_px:
width = max(width, stroke_px)
attribs += ' stroke-width="' + self._trim_decimals(str(width)) + '"'
elif stroke_px:
attribs += ' stroke-width="'+self._trim_decimals(str(stroke_px))+'"'
elif stroke_width:
attribs += ' stroke-width="'+self._trim_decimals(str(stroke_width * self.scale))+'"'
if stroke_color:
attribs += ' stroke="'+stroke_color+'"'
if stroke_opacity: