36 lines
1.0 KiB
C++
36 lines
1.0 KiB
C++
#include "solvespace.h"
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void Entity::Draw(void) {
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switch(type) {
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case CSYS_2D: {
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Vector p;
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double a, b, c, d;
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SS.point.FindById(point(16))->GetInto(&p);
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a = SS.param.FindById(param(0))->val;
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b = SS.param.FindById(param(1))->val;
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c = SS.param.FindById(param(2))->val;
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d = SS.param.FindById(param(3))->val;
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Vector u = Vector::RotationU(a, b, c, d);
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Vector v = Vector::RotationV(a, b, c, d);
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double s = (min(SS.GW.width, SS.GW.height))*0.4;
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u = u.ScaledBy(s);
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v = v.ScaledBy(s);
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Vector r;
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glBegin(GL_LINE_LOOP);
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r = p; r = r.Minus(v); r = r.Minus(u); glVertex3v(r);
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r = p; r = r.Plus(v); r = r.Minus(u); glVertex3v(r);
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r = p; r = r.Plus(v); r = r.Plus(u); glVertex3v(r);
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r = p; r = r.Minus(v); r = r.Plus(u); glVertex3v(r);
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glEnd();
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break;
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}
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default:
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oops();
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}
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}
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