Offset polygon draw

2011 6 18
2 个回答
更新时间：2018 11 14
9 次查看（30 天）

0 个投票

Hi, I am working with Voronoi. However, I need to draw offset polygon. In my case, it will be negative offset polygon (the inner polygon will shrink). Can any one help me out. I tried, but did not get it. I am trying to provide the the coordinates of the original polygon and amount of offset (it may be positive for expansion and negative value for contraction). My case, the polygon is arbitrary shaped, i.e. it can be of any number of sides but of course convex polygon. I will appreciate if someone can help me out.
Thanks, Tanvir

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回答（2 个）

Razvan Sencu
Razvan Sencu 2013-3-13

0 个投票

Hi,
Did you find your answer? I'll be interested in offseting some polygons as well.
Thanks, Razvan
Steven
Steven 2018-11-14

0 个投票

for ii = [0 1 3]
xoff = ii;
yoff = 1;
t = 0.05:0.01:2*pi;
x1 = avgdistbig*cos(t)+xoff;
y1 = avgdistbig*sin(t)+yoff;
pgon = polyshape(x1,y1);
hold on;plot(pgon)
end

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Steven
Steven
2018-11-14

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