17 lines
516 B
C++
17 lines
516 B
C++
#include "all_includes.hh"
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Quad::Quad() {}
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Quad::Quad(Vertex ne, Vertex se, Vertex sw, Vertex nw) {
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corner[NE] = ne;
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corner[SE] = se;
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corner[SW] = sw;
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corner[NW] = nw;
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}
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void Quad::offset(/*Cardinal*/int side, int offset) {
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Vertex voffset = (corner[NE + side]-corner[NW + side]).perpendicular().setNorm(offset);
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corner[NE + side] = corner[NE + side] + voffset.projectOn(corner[NE + side]-corner[SE + side]);
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corner[NW + side] = corner[NW + side] + voffset.projectOn(corner[NW + side]-corner[SW + side]);
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}
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