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support for viewbox in importsvg

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This commit is contained in:
Laura Klünder 2019-12-18 19:36:32 +01:00
parent 3cef66aa85
commit fbe8671542
1 changed files with 7 additions and 0 deletions
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7
src/c3nav/mapdata/management/commands/importsvg.py
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@ -156,6 +156,12 @@ class Command(BaseCommand):
svg = ElementTree.fromstring(options['svgfile'].read()) svg = ElementTree.fromstring(options['svgfile'].read())
svg_width = float(svg.attrib['width']) svg_width = float(svg.attrib['width'])
svg_height = float(svg.attrib['height']) svg_height = float(svg.attrib['height'])
svg_viewbox = svg.attrib.get('viewBox')
if svg_viewbox:
offset_x, offset_y, svg_width, svg_height = [float(i) for i in svg_viewbox.split(' ')]
else:
offset_x, offset_y = 0, 0
for element in svg.findall('.//svg:clipPath/..', namespaces): for element in svg.findall('.//svg:clipPath/..', namespaces):
for clippath in element.findall('./svg:clipPath', namespaces): for clippath in element.findall('./svg:clipPath', namespaces):
@ -178,6 +184,7 @@ class Command(BaseCommand):
if len(polygon) < 3: if len(polygon) < 3:
continue continue
polygon = Polygon(polygon) polygon = Polygon(polygon)
polygon = translate(polygon, xoff=-offset_x, yoff=-offset_y)
polygon = scale(polygon, xfact=1, yfact=-1, origin=(0, svg_height/2)) polygon = scale(polygon, xfact=1, yfact=-1, origin=(0, svg_height/2))
polygon = scale(polygon, xfact=width / svg_width, yfact=height / svg_height, origin=(0, 0)) polygon = scale(polygon, xfact=width / svg_width, yfact=height / svg_height, origin=(0, 0))
polygon = translate(polygon, xoff=minx, yoff=miny) polygon = translate(polygon, xoff=minx, yoff=miny)