color on q3dsurface only shows when zooming in
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I've drawn a simple Q3DSurface. All seems to work OK, except the color only appears when I right click, mouse wheel zoom in, as close as I can to the surface. This is true for a solid color or a linear gradient. I've been through the Q3DSurface example line by line (the example works fine, I see the color immediately when I run the app) and I can't see anything significant that I think would cause this behavior. Can someone point out what I may be dong wrong? Note that the variable 'graph' is a Q3DSurface object.
m_dataProxy = new QSurfaceDataProxy();
m_dataSeries = new QSurface3DSeries(m_dataProxy);m_dataSeries->setDrawMode(QSurface3DSeries::DrawSurfaceAndWireframe); m_dataSeries->setFlatShadingEnabled(false); graph->addSeries(m_dataSeries); QLinearGradient gr; gr.setColorAt(0.0, Qt::darkGreen); gr.setColorAt(0.5, Qt::yellow); gr.setColorAt(0.8, Qt::red); gr.setColorAt(1.0, Qt::darkRed); graph->activeTheme()->setType(Q3DTheme::ThemeQt); //graph->seriesList().at(0)->setBaseGradient(gr); //graph->seriesList().at(0)->setColorStyle(Q3DTheme::ColorStyleRangeGradient); QSurfaceDataArray *dataArray = new QSurfaceDataArray; dataArray->reserve(100); QSurfaceDataRow *tempRow1 = new QSurfaceDataRow(100); QSurfaceDataRow *tempRow2 = new QSurfaceDataRow(100); QSurfaceDataRow *tempRow3 = new QSurfaceDataRow(100); for (int i = 0 ; i < 100 ; i++) { (*tempRow1)[99-i].setPosition(QVector3D(i,1.0f,-50.0f)); (*tempRow2)[99-i].setPosition(QVector3D(i,3.0f,0.0f)); (*tempRow3)[99-i].setPosition(QVector3D(i,5.0f,50.0f)); } *dataArray << tempRow1; *dataArray << tempRow2; *dataArray << tempRow3; m_dataProxy->resetArray(dataArray); graph->show(); -
I've drawn a simple Q3DSurface. All seems to work OK, except the color only appears when I right click, mouse wheel zoom in, as close as I can to the surface. This is true for a solid color or a linear gradient. I've been through the Q3DSurface example line by line (the example works fine, I see the color immediately when I run the app) and I can't see anything significant that I think would cause this behavior. Can someone point out what I may be dong wrong? Note that the variable 'graph' is a Q3DSurface object.
m_dataProxy = new QSurfaceDataProxy();
m_dataSeries = new QSurface3DSeries(m_dataProxy);m_dataSeries->setDrawMode(QSurface3DSeries::DrawSurfaceAndWireframe); m_dataSeries->setFlatShadingEnabled(false); graph->addSeries(m_dataSeries); QLinearGradient gr; gr.setColorAt(0.0, Qt::darkGreen); gr.setColorAt(0.5, Qt::yellow); gr.setColorAt(0.8, Qt::red); gr.setColorAt(1.0, Qt::darkRed); graph->activeTheme()->setType(Q3DTheme::ThemeQt); //graph->seriesList().at(0)->setBaseGradient(gr); //graph->seriesList().at(0)->setColorStyle(Q3DTheme::ColorStyleRangeGradient); QSurfaceDataArray *dataArray = new QSurfaceDataArray; dataArray->reserve(100); QSurfaceDataRow *tempRow1 = new QSurfaceDataRow(100); QSurfaceDataRow *tempRow2 = new QSurfaceDataRow(100); QSurfaceDataRow *tempRow3 = new QSurfaceDataRow(100); for (int i = 0 ; i < 100 ; i++) { (*tempRow1)[99-i].setPosition(QVector3D(i,1.0f,-50.0f)); (*tempRow2)[99-i].setPosition(QVector3D(i,3.0f,0.0f)); (*tempRow3)[99-i].setPosition(QVector3D(i,5.0f,50.0f)); } *dataArray << tempRow1; *dataArray << tempRow2; *dataArray << tempRow3; m_dataProxy->resetArray(dataArray); graph->show();I solved my own problem, was drawing the graph in a Window, but not using a container to do it. It kind of works, but not very good. Always best to thoroughly understand the instructions before writing code. All is now working very well!