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segment.cpp (780B)

      1 #include "all_includes.hh"
      2 
      3 Segment::Segment(Vertex _u, Vertex _v): u(_u), v(_v) {}
      4 
      5 float Segment::length() {
      6 	return (u-v).norm();
      7 }
      8 
      9 Segment Segment::reduce(float value) {
     10     float reduc = (float)length()/(float)value;
     11     return Segment(u,u+((v - u) / reduc));
     12 }
     13 
     14 Vertex Segment::at(float proportiannalDist) {
     15     return Segment(u,u+((v-u)*proportiannalDist)).v;
     16 }
     17 
     18 Vertex Segment::center() {
     19     return at(1./2.);
     20 }
     21 
     22 float Segment::width() {
     23 	return std::abs(u.x - v.x);
     24 }
     25 
     26 float Segment::height() {
     27 	return std::abs(u.y - v.y);
     28 }
     29 
     30 Vertex Segment::randomPos(int seed, int n, float a, float b) {
     31 	float pos = floatInRange(seed, n, a, b);
     32 	return (u * pos + v * (1-pos));
     33 }
     34 
     35 Segment operator+(const Segment& s, const Vertex& voff) {
     36 	return Segment(s.u + voff, s.v + voff);
     37 }