Fixed g-code arc parse/plot

descartes/tests.py

@@ -0,0 +1,38 @@
+from shapely.geometry import *
+import unittest
+
+from descartes.patch import PolygonPatch
+
+class PolygonTestCase(unittest.TestCase):
+    polygon = Point(0, 0).buffer(10.0).difference(
+                MultiPoint([(-5, 0), (5, 0)]).buffer(3.0))
+    def test_patch(self):
+        patch = PolygonPatch(self.polygon)
+        self.failUnlessEqual(str(type(patch)), 
+            "<class 'matplotlib.patches.PathPatch'>")
+        path = patch.get_path()
+        self.failUnless(len(path.vertices) == len(path.codes) == 198)
+
+class JSONPolygonTestCase(unittest.TestCase):
+    polygon = Point(0, 0).buffer(10.0).difference(
+                MultiPoint([(-5, 0), (5, 0)]).buffer(3.0))
+    def test_patch(self):
+        geo = self.polygon.__geo_interface__
+        patch = PolygonPatch(geo)
+        self.failUnlessEqual(str(type(patch)), 
+            "<class 'matplotlib.patches.PathPatch'>")
+        path = patch.get_path()
+        self.failUnless(len(path.vertices) == len(path.codes) == 198)
+
+class GeoInterfacePolygonTestCase(unittest.TestCase):
+    class GeoThing:
+        __geo_interface__ = None
+    thing = GeoThing()
+    thing.__geo_interface__ = Point(0, 0).buffer(10.0).difference(
+                MultiPoint([(-5, 0), (5, 0)]).buffer(3.0)).__geo_interface__
+    def test_patch(self):
+        patch = PolygonPatch(self.thing)
+        self.failUnlessEqual(str(type(patch)), 
+            "<class 'matplotlib.patches.PathPatch'>")
+        path = patch.get_path()
+        self.failUnless(len(path.vertices) == len(path.codes) == 198)