Added an example of use of CanvasTools.RectTool to allow generation of docs.

RectTool is used to write rectangles over an image (lena).
This example also can be useful for set_color explanation using both [RGB] and single value color setting
This commit is contained in:
salvatore
2014-12-20 00:39:33 +01:00
parent acc06d051b
commit 5b71cd9481
+33 -1
View File
@@ -37,8 +37,40 @@ class RectangleTool(CanvasToolBase, RectangleSelector):
----------
extents : tuple
Rectangle extents: (xmin, xmax, ymin, ymax).
"""
Examples
--------
>>>from skimage import data
>>>import matplotlib.pyplot as plt
>>>from skimage.viewer.canvastools import RectangleTool
>>>import numpy as np
>>>from skimage.draw import line
>>>from skimage.draw import set_color
>>>im = data.lena()
>>>[f, ax] = plt.subplots()
>>>ax.imshow(im)
>>>def stampa(extents):
>>>>>>global im,ax
>>>>>>coord = np.int64(extents)
>>>>>>[rr1, cc1] = line(coord[2],coord[0],coord[2],coord[1])
>>>>>>[rr2, cc2] = line(coord[2],coord[1],coord[3],coord[1])
>>>>>>[rr3, cc3] = line(coord[3],coord[1],coord[3],coord[0])
>>>>>>[rr4, cc4] = line(coord[3],coord[0],coord[2],coord[0])
>>>>>>set_color(im, (rr1, cc1), [255, 255, 0])
>>>>>>set_color(im, (rr2, cc2), [0, 255, 255])
>>>>>>set_color(im, (rr3, cc3), [255, 0, 255])
>>>>>>set_color(im, (rr4, cc4), [0, 0, 0])
>>>>>>ax.imshow(im)
>>>>>>plt.show()
>>>rect_tool = RectangleTool(ax, on_enter=stampa)
>>>plt.show()
"""
def __init__(self, viewer, on_move=None, on_release=None, on_enter=None,
maxdist=10, rect_props=None):
CanvasToolBase.__init__(self, viewer, on_move=on_move,