33 lines
587 B
C++
33 lines
587 B
C++
#include "Vertex.h"
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#include <math.h>
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double Vertex::distanceSq(const Vertex &v) const {
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return (x - v.x)*(x - v.x) + (y - v.y)*(y - v.y);
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}
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double Vertex::distance(const Vertex &v) const {
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return sqrt(distanceSq(v));
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}
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Vertex Vertex::operator+(const Vertex &v) const {
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return Vertex(x + v.x, y + v.y);
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}
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Vertex Vertex::operator-(const Vertex &v) const {
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return Vertex(x - v.x, y - v.y);
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}
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Vertex& Vertex::operator+=(const Vertex &v) {
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x += v.x;
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y += v.y;
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return *this;
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}
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Vertex& Vertex::operator-=(const Vertex &v) {
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x -= v.x;
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y -= v.y;
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return *this;
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}
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