vcglib/wrap/qt/PolyToQImage.cpp

92 lines
2.6 KiB
C++

#include <QImage>
#include <QSvgGenerator>
#include <QPainter>
#include "PolyToQImage.h"
#include <wrap/qt/col_qt_convert.h>
using namespace vcg;
using namespace std;
void rectSetToPolySet(vector< Box2f > &rectVec, vector< vector<Point2f> > &polyVec)
{
polyVec.clear();
for(size_t i=0;i<rectVec.size();++i)
{
Box2f &b=rectVec[i];
polyVec.resize(polyVec.size()+1);
polyVec.back().push_back(b.min);
polyVec.back().push_back(Point2f(b.max[0],b.min[1]));
polyVec.back().push_back(b.max);
polyVec.back().push_back(Point2f(b.min[0],b.max[1]));
}
}
void dumpPolySet(const char * imageName, vector< vector<Point2f> > &polyVec, int width, int height)
{
Box2f bb;
for(size_t i=0;i<polyVec.size();++i)
for(int j=0;j<polyVec[i].size();++j)
bb.Add(polyVec[i][j]);
Similarity2f sim;
sim.sca = min(float(width)/bb.DimX(),float(height)/bb.DimY());
sim.tra = Point2f(width/2.0f,height/2.0f)-bb.Center()*sim.sca;
vector<Similarity2f> trVec(polyVec.size(),sim);
dumpPolySet(imageName,polyVec,trVec,width,height);
}
void dumpPolySet(const char * imageName, vector< vector< vector<Point2f> > > &polyVecVec, vector<Similarity2f> &trVec, int width, int height)
{
assert(polyVecVec.size() == trVec.size());
QImage img(width,height,QImage::Format_RGB32);
img.fill(qRgb(128,128,128));
QSvgGenerator svg;
svg.setFileName(imageName);
QPainter painter;
if(QString(imageName).endsWith("svg",Qt::CaseInsensitive))
painter.begin(&svg);
else painter.begin(&img);
for(size_t i=0;i<polyVecVec.size();++i)
{
painter.resetTransform();
painter.translate(trVec[i].tra[0],trVec[i].tra[1]);
painter.rotate(math::ToDeg(trVec[i].rotRad));
painter.scale(trVec[i].sca,trVec[i].sca);
QVector<QPointF> ppQ;
for(int j=0;j<polyVecVec[i][0].size();++j)
{
Point2f pp=polyVecVec[i][0][j];
ppQ.push_back(QPointF(pp[0],pp[1]));
}
QBrush bb(vcg::ColorConverter::ToQColor(Color4b::Scatter(polyVecVec.size(),i)));
painter.setBrush(bb);
painter.drawPolygon(&*ppQ.begin(),ppQ.size(),Qt::OddEvenFill);
}
painter.end();
if(!QString(imageName).endsWith("svg",Qt::CaseInsensitive))
{
img = img.mirrored(false,true);
img.save(imageName);
}
}
void dumpPolySet(const char * imageName, vector< vector<Point2f> > &polyVec, vector<Similarity2f> &trVec, int width, int height)
{
vector< vector< vector<Point2f> > > polyVecVec(polyVec.size());
for(size_t i=0;i<polyVec.size();++i)
{
polyVecVec[i].resize(1);
polyVecVec[i][0]=polyVec[i];
}
dumpPolySet(imageName,polyVecVec,trVec,width,height);
}