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Polygon.cpp
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Polygon.cpp
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#include "Polygon.h"
Polygon::Polygon()
{
this->start = NULL;
this->end = NULL;
this->type = POLYGON;
this->colseFlag = false;
//For test
xCenter = 0;
yCenter = 0;
}
Polygon::Polygon(QPoint *start, QPoint *end, FIGURE_TYPE type)
{
this->start = start;
this->end = end;
this->type = POLYGON;
this->vertex.push_back(Point(start->x(),start->y())); //起始点进去
this->colseFlag = false;
//对于起始点的处理
this->startPoint = Point(*start);
}
void Polygon::setNextPoint(Point p)
{
vertex.push_back(p);
}
void Polygon::changeNextPoint(Point p)
{
vertex[vertex.size()-1] = p;
}
void Polygon::changePoint(int index, Point p)
{
if(index<0 || index >= vertex.size()){
qDebug()<<"Change Points in polygon error"<<endl;
}else{
if(index == 0){
this->vertex[0] = p;
this->vertex[this->vertex.size()-1] = p;
}else{
this->vertex[index] = p;
}
}
}
void Polygon::getRectangle()
{
int maxX = vertex.first().getX();
int minX = vertex.first().getX();
int maxY = vertex.first().getY();
int minY = vertex.first().getY();
for(Point v: vertex){
int vx = v.getX();
int vy = v.getY();
if(vx>maxX){
maxX = vx;
}
if(vx<minX){
minX = vx;
}
if(vy>maxY){
maxY = vy;
}
if(vy<minY){
minY = vy;
}
}
LeftUp.setPoint(minX,minY); //左上角(minX,minY)
LeftDown.setPoint(minX,maxY); //左下角(minX,maxY)
RightUp.setPoint(maxX,minY); //右上角(maxX,minY)
RightDown.setPoint(maxX,maxY);//右下角(maxX,maxY)
double cX = (minX+maxX)/2;
double cY = (minY+maxY)/2;
this->xCenter = cX;
this->yCenter = cY;
double offSetX = cX + ROTATE_RIDUS*qSin(rotateAngle);
double offSetY = cY - ROTATE_RIDUS*qCos(rotateAngle);
centerPoint.setPoint(cX,cY); //中点
rotatePoint.setPoint(offSetX,offSetY); //旋转点
}
void Polygon::getRectangleRotating()
{
if(xCenter == 0){
xCenter = this->centerPoint.getX();
yCenter = this->centerPoint.getY();
}
qDebug()<<"稳定!getRectangleRotating"<<endl;
int maxX = vertex.first().getX();
int minX = vertex.first().getX();
int maxY = vertex.first().getY();
int minY = vertex.first().getY();
for(Point v: vertex){
int vx = v.getX();
int vy = v.getY();
if(vx>maxX){
maxX = vx;
}
if(vx<minX){
minX = vx;
}
if(vy>maxY){
maxY = vy;
}
if(vy<minY){
minY = vy;
}
}
LeftUp.setPoint(minX,minY); //左上角(minX,minY)
LeftDown.setPoint(minX,maxY); //左下角(minX,maxY)
RightUp.setPoint(maxX,minY); //右上角(maxX,minY)
RightDown.setPoint(maxX,maxY);//右下角(maxX,maxY)
// double cX = this->centerPoint.getX();
// double cY = this->centerPoint.getY();
double cX = xCenter;
double cY = yCenter;
qDebug()<<"中点坐标为: "<<"("<<(int)cX<<","<<(int)cY<<")"<<endl;
double offSetX = cX + ROTATE_RIDUS*qSin(rotateAngle);
double offSetY = cY - ROTATE_RIDUS*qCos(rotateAngle);
rotatePoint.setPoint(offSetX,offSetY); //旋转点
}