dump svg

axi/drawing.py

@@ -39,6 +39,28 @@ class Drawing(object):
         with open(filename, 'w') as fp:
             fp.write(self.dumps())
 
+    def dumps_svg(self, scale=96):
+        lines = []
+        w = (self.width + 2) * scale
+        h = (self.height + 2) * scale
+        lines.append('<svg xmlns="http://www.w3.org/2000/svg" version="1.1" width="%g" height="%g">' % (w, h))
+        lines.append('<g transform="scale(%g) translate(1 1)">' % scale)
+        for path in self.paths:
+            p = []
+            c = 'M'
+            for x, y in path:
+                p.append('%s%g %g' % (c, x, y))
+                c = 'L'
+            d = ' '.join(p)
+            lines.append('<path d="%s" fill="none" stroke="black" stroke-width="0.01" stroke-linecap="round" stroke-linejoin="round" />' % d)
+        lines.append('</g>')
+        lines.append('</svg>')
+        return '\n'.join(lines)
+
+    def dump_svg(self, filename):
+        with open(filename, 'w') as fp:
+            fp.write(self.dumps_svg())
+
     @property
     def bounds(self):
         if not self._bounds: