source: projectionDesigner/curvedScreenGenerator/screenGenerator.cpp @ 108

#include "screenGenerator.h"

screenGenerator::screenGenerator(QWidget *parent, Qt::WFlags flags)
        : QMainWindow(parent, flags)
{
        ui.setupUi(this);
}

screenGenerator::~screenGenerator()
{

}

void screenGenerator::on_pBGenerate_clicked()
{
        // Get filename to save
        QString filename = QFileDialog::getSaveFileName(this, tr("Save Wavefront Object File"),
                            QDir::currentPath(),
                            tr("Wavefront Object (*.obj)"));
        //Open file
    QFile file( filename );
        file.remove();
    file.open(QIODevice::ReadWrite | QIODevice::Text);
        QTextStream in(&file);
    in << "# Screen generator v0.1 OBJ File: \n";
        in << "# Torben Dannhauer, 09 2009 \n";

        // Raster the screen and save vertices
        double deltaVert = ui.dSB_upperEdge->value()-ui.dSB_lowerEdge->value();
        deltaVert /= (ui.sB_horSubdivisions->value()+1);
        double deltaHor_rad = deg2rad( ui.sB_openingAngle->value() ) / (ui.sB_vertSubdivisions->value()+1);

        for(int i=0; i<=ui.sB_vertSubdivisions->value()+1; i++) // vertical
        {
                for (int j=0; j<=ui.sB_horSubdivisions->value()+1; j++) // horizontal
                {
                        // calc current angle
                        double currentAngle_rad = j*deltaHor_rad - deg2rad( ui.sB_openingAngle->value() / 2.0 );

                        double side = 0 - sin(currentAngle_rad)*ui.dSB_radius->value();
                        double up = ui.dSB_lowerEdge->value()+i*deltaVert;
                        double depth = 0 - cos(currentAngle_rad)*ui.dSB_radius->value();

                        // write vertex line
                        QString data = QString("v ")+QString::number(side, 'f', 6)+" "+QString::number(up, 'f', 6)+" "+QString::number(depth, 'f', 6)+" \n";
                        in << data; 
                }
        }

        // calculate polygon vertex order
        for( int row=0; row<ui.sB_vertSubdivisions->value()+1; row++)
        {
                for ( int col=0; col<ui.sB_horSubdivisions->value()+1; col++)
                {
                        // write polygon vertex line
                        int x = row*(ui.sB_horSubdivisions->value()+2)+col+1;
                        in << "f "+QString::number(x)+" "+QString::number(x+ui.sB_horSubdivisions->value()+2)+" "+QString::number(x+1)+"\n";
                        in << "f "+QString::number(x+1)+" "+QString::number(x+ui.sB_horSubdivisions->value()+2)+" "+QString::number(x+ui.sB_horSubdivisions->value()+3)+"\n";
                }
        }

        // close file
    file.close();

        



}

void screenGenerator::on_actionAbout_Qt_triggered()
{
        QMessageBox::aboutQt(this);
}

void screenGenerator::on_actionAbout_screenGenerator_triggered()
{
        QMessageBox::about( this, "screenGenerator V 0.1", "This software generates cylindrical curved screens to be used in the 'Projection Designer' software. The output format is wavefront object. The geometry and size can be specified." );
}