Draw a symmetrical shape on the x-axis, y-axis, and origin using the transformation matrix

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Hyuck Joon Byun
Hyuck Joon Byun 2020-4-20
回答： darova 2020-4-21
pgon = polyshape([3 3 2 3 5 6 5 5], [-1 -3 -3 -4 -4 -3 -3 -1]);
plot(pgon)
this is my polygon matrix i want to draw Symmetry on x-axis,y-axis,origin but i don't know how
what should i do?

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回答（1 个）

darova
darova 2020-4-21
I used patch
x = [3 3 2 3 5 6 5 5];
y = [1 3 3 4 4 3 3 1];
cla
patch(x,y,'r');
patch(x,-y,'r');
patch(y,x,'r');
patch(-y,x,'r');
You can also use rotate to rotate your object

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