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improve _geometry_to_svg performance

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This commit is contained in:
Laura Klünder 2017-10-20 11:31:22 +02:00
parent 9e41473040
commit 1b3fab8993
1 changed files with 4 additions and 7 deletions
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11
src/c3nav/mapdata/utils/svg.py
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@ -135,15 +135,12 @@ class SVGImage:
def _geometry_to_svg(self, geom):
if isinstance(geom, Polygon):
return ('<path d="' +
' '.join(('M %.1f %.1f L %s z' % (coords[0][0], coords[0][1],
' '.join(('%.1f %.1f' % (c[0], c[1])) for c in coords[1:])))
for coords in chain((geom.exterior.coords,), (ring.coords for ring in geom.interiors)))
' '.join((('M %.1f %.1f L'+(' %.1f %.1f'*(len(ring.coords)-1))) % tuple(ring.ctypes))
for ring in chain((geom.exterior,), geom.interiors))
+ '"/>').replace('.0 ', ' ')
if isinstance(geom, LineString):
return ('<path d="' +
' '.join('M %.1f %.1f L %s' % (geom.coords[0][0], geom.coords[0][1],
' '.join(('%.1f %.1f' % (c[0], c[1])) for c in geom.coords[1:])))
+ '"/>').replace('.0 ', ' ')
return (('<path d="M %.1f %.1f L'+(' %.1f %.1f'*(geom.coords-1))+'"/>') %
tuple(geom.ctypes)).replace('.0 ', ' ')
try:
geoms = geom.geoms
except AttributeError: