combined all draw functions in one example script

doc/examples/plot_polygon.py

@@ -1,39 +0,0 @@
-"""
-============
-Fill polygon
-============
-
-This example shows how to fill polygons in images.
-"""
-
-import matplotlib.pyplot as plt
-
-from skimage.draw import polygon
-import numpy as np
-
-
-img = np.zeros((500, 500), 'uint8')
-polygon1 = np.array((
-    (50, 50),
-    (150, 30),
-    (400, 100),
-    (300, 200),
-    (480, 400),
-    (100, 420),
-    (50, 50),
-))
-polygon2 = np.array((
-    (300, 300),
-    (480, 320),
-    (380, 430),
-    (220, 590),
-    (300, 300),
-))
-rr, cc = polygon(polygon1, img.shape)
-img[rr,cc] = 127
-rr, cc = polygon(polygon2, img.shape)
-img[rr,cc] = 255
-
-plt.gray()
-plt.imshow(img)
-plt.show()

doc/examples/plot_shapes.py

@@ -0,0 +1,48 @@
+"""
+===========
+Fill shapes
+===========
+
+This example shows how to fill several different shapes:
+* line
+* polygon
+* circle
+* ellipse
+
+"""
+
+import matplotlib.pyplot as plt
+
+from skimage.draw import line, polygon, circle, ellipse
+import numpy as np
+
+
+img = np.zeros((500, 500, 3), 'uint8')
+
+#: draw line
+rr, cc = line(120, 123, 20, 400)
+img[rr,cc,0] = 255
+
+#: fill polygon
+poly = np.array((
+    (300, 300),
+    (480, 320),
+    (380, 430),
+    (220, 590),
+    (300, 300),
+))
+rr, cc = polygon(poly, img.shape)
+img[rr,cc,1] = 255
+
+#: fill circle
+rr, cc = circle(200, 200, 100, img.shape)
+img[rr,cc,0] = 255
+rr, cc = circle(200, 200, 100, img.shape)
+img[rr,cc,1] = 255
+
+#: fill ellipse
+rr, cc = ellipse(300, 300, 100, 200, img.shape)
+img[rr,cc,2] = 255
+
+plt.imshow(img)
+plt.show()