get(x,y) coordinates from rectangle function in matlab
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Hi, I use rectangle function to draw a rectangle with two ends curved using following codes:
Rec = rectangle('Position',[1,1,10,5],'Curvature',1);
Will it be possible to get the (x,y) coordinate matrix of Rec?? Thanks for the help.
回答（2 个）
Walter Roberson
2012-7-18
0 个投票
What is "the (x,y) coordinate matrix" of Rec ?
You can get() the Position property of Rec to retrieve the [1,1,10,5]
4 个评论
Tai-Yen Chen
2012-7-18
Walter Roberson
2012-7-18
pos = get(Rec, 'Position');
x = [pos(1)+0, pos(1)+pos(3), pos(1)+pos(3), pos(1)+0, pos(1)+0];
y = [pos(2)+0, pos(2)+0, pos(2)+pos(4), pos(2)+pos(4), pos(2)+0];
plot(x,y,'o');
Tai-Yen Chen
2012-7-18
Walter Roberson
2012-7-18
Sorry, I did not notice about that.
I do not know of any method to extract the coordinates. There might be one that is not obvious, but I cannot test that at this time.
To get the coordinates, just follow the index of the array:
r = rectangle('Position',[20 -3 10 10]);
r.Position(1) % x value
r.Position(2) % y value
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