add map renderer

add map renderer

src/c3nav/mapdata/management/commands/createsvg.py

@@ -0,0 +1,38 @@
+import os
+from django.core.management.base import BaseCommand
+
+from c3nav.mapdata.models import Level
+
+svg_template = """<svg
+  width="{width}"
+  height="{height}"
+  xmlns:svg="http://www.w3.org/2000/svg"
+  xmlns="http://www.w3.org/2000/svg"
+>
+{data}
+</svg>"""
+
+
+class Command(BaseCommand):
+    help = 'create svgs for each level'
+
+    def add_arguments(self, parser):
+        parser.add_argument('folder', help='folder, where the svgs should be stored')
+
+    def handle(self, *args, **options):
+        folder = options['folder']
+        os.chdir(folder)
+
+        for level in Level.objects.all():
+            level_name = "level-{}.svg".format(level.name)
+            data = []
+            for building in level.buildings.all():
+                data.append(building.geometry.svg(fill_color="#c0c0c0"))
+            for area in level.areas.all():
+                data.append(area.geometry.svg(fill_color="#a0a0a0"))
+            for obstacle in level.obstacles.all():
+                data.append(obstacle.geometry.svg(fill_color="#ffa0a0"))
+            for door in level.doors.all():
+                data.append(door.geometry.svg(fill_color="#f0a0f0"))
+            with open(level_name, 'w') as fh:
+                fh.write(svg_template.format(width=400, height=200, data='\n'.join(data)))