67 lines
1.9 KiB
C++
67 lines
1.9 KiB
C++
#include <QImage>
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#include <QPainter>
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#include "PolyToQImage.h"
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#include <wrap/qt/col_qt_convert.h>
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using namespace vcg;
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using namespace std;
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int dumpPolySet(const char * imageName, vector< vector<Point2f> > &polyVec, int width, int height)
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{
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Box2f bb;
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for(size_t i=0;i<polyVec.size();++i)
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for(int j=0;j<polyVec[i].size();++j)
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bb.Add(polyVec[i][j]);
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Similarity2f sim;
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sim.sca = min(float(width)/bb.DimX(),float(height)/bb.DimY());
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sim.tra = Point2f(width/2.0f,height/2.0f)-bb.Center()*sim.sca;
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vector<Similarity2f> trVec(polyVec.size(),sim);
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return dumpPolySet(imageName,polyVec,trVec,width,height);
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}
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int dumpPolySet(const char * imageName, vector< vector< vector<Point2f> > > &polyVecVec, vector<Similarity2f> &trVec, int width, int height)
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{
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assert(polyVecVec.size() == trVec.size());
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QImage img(width,height,QImage::Format_RGB32);
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img.fill(qRgb(128,128,128));
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QPainter painter(&img); // paint in picture
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for(size_t i=0;i<polyVecVec.size();++i)
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{
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QVector<QPointF> ppQ;
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for(int j=0;j<polyVecVec[i][0].size();++j)
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{
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Point2f pp=trVec[i]*polyVecVec[i][0][j];
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ppQ.push_back(QPointF(pp[0],pp[1]));
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}
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QBrush bb(vcg::ColorConverter::ToQColor(Color4b::Scatter(polyVecVec.size(),i)));
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painter.setBrush(bb);
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painter.drawPolygon(&*ppQ.begin(),ppQ.size(),Qt::OddEvenFill);
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}
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painter.end();
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img = img.mirrored(false,true);
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img.save(imageName);
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int emptyCnt=0;
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for(int i=0;i<width;++i)
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for(int j=0;j<height;++j)
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if(img.pixel(i,j) == qRgb(128,128,128)) emptyCnt++;
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return emptyCnt;
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}
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int dumpPolySet(const char * imageName, vector< vector<Point2f> > &polyVec, vector<Similarity2f> &trVec, int width, int height)
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{
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vector< vector< vector<Point2f> > > polyVecVec(polyVec.size());
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for(size_t i=0;i<polyVec.size();++i)
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{
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polyVecVec[i].resize(1);
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polyVecVec[i][0]=polyVec[i];
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}
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dumpPolySet(imageName,polyVecVec,trVec,width,height);
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}
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