C++ (Cpp) QgsMapUnitScale Exemples

Exemple #1

Fichier : qgsvectorfieldsymbollayer.cpp Projet : mterente/QGIS

QgsMapUnitScale QgsVectorFieldSymbolLayer::mapUnitScale() const
{
  if ( QgsMarkerSymbolLayer::mapUnitScale() == mDistanceMapUnitScale )
  {
    return mDistanceMapUnitScale;
  }
  return QgsMapUnitScale();
}

Exemple #2

Fichier : qgssymbollayerv2.cpp Projet : AaronGaim/QGIS

QgsMapUnitScale QgsMarkerSymbolLayerV2::mapUnitScale() const
{
  if ( mSizeMapUnitScale == mOffsetMapUnitScale )
  {
    return mSizeMapUnitScale;
  }
  return QgsMapUnitScale();
}

Exemple #3

Fichier : qgslinesymbollayerv2.cpp Projet : ACorradini/QGIS

QgsMapUnitScale QgsSimpleLineSymbolLayerV2::mapUnitScale() const
{
  if ( QgsLineSymbolLayerV2::mapUnitScale() == mWidthMapUnitScale &&
       mWidthMapUnitScale == mOffsetMapUnitScale &&
       mOffsetMapUnitScale == mCustomDashPatternMapUnitScale )
  {
    return mWidthMapUnitScale;
  }
  return QgsMapUnitScale();
}

Exemple #4

Fichier : qgslinesymbollayerv2.cpp Projet : ACorradini/QGIS

QgsMapUnitScale QgsMarkerLineSymbolLayerV2::mapUnitScale() const
{
  if ( QgsLineSymbolLayerV2::mapUnitScale() == mIntervalMapUnitScale &&
       mIntervalMapUnitScale == mOffsetMapUnitScale &&
       mOffsetMapUnitScale == mOffsetAlongLineMapUnitScale )
  {
    return mOffsetMapUnitScale;
  }
  return QgsMapUnitScale();
}

Exemple #5

Fichier : qgsellipsesymbollayerv2.cpp Projet : dionhouston/QGIS

QgsMapUnitScale QgsEllipseSymbolLayerV2::mapUnitScale() const
{
  if ( QgsMarkerSymbolLayerV2::mapUnitScale() == mSymbolWidthMapUnitScale &&
       mSymbolWidthMapUnitScale == mSymbolHeightMapUnitScale &&
       mSymbolHeightMapUnitScale == mOutlineWidthMapUnitScale )
  {
    return mSymbolWidthMapUnitScale;
  }
  return QgsMapUnitScale();
}

Exemple #6

Fichier : qgssymbolv2.cpp Projet : luipir/QGIS

QgsMapUnitScale QgsSymbolV2::mapUnitScale() const
{
  if ( mLayers.empty() )
  {
    return QgsMapUnitScale();
  }

  QgsSymbolLayerV2List::const_iterator it = mLayers.constBegin();
  if ( it == mLayers.constEnd() )
    return QgsMapUnitScale();

  QgsMapUnitScale scale = ( *it )->mapUnitScale();
  ++it;

  for ( ; it != mLayers.constEnd(); ++it )
  {
    if (( *it )->mapUnitScale() != scale )
    {
      return QgsMapUnitScale();
    }
  }
  return scale;
}

Exemple #7

Fichier : qgsheatmaprenderer.cpp Projet : GiordanoPezzola/QGIS

void QgsHeatmapRenderer::modifyRequestExtent( QgsRectangle &extent, QgsRenderContext& context )
{
  //we need to expand out the request extent so that it includes points which are up to the heatmap radius outside of the
  //actual visible extent
  double extension = 0.0;
  if ( mRadiusUnit == QgsSymbolV2::Pixel )
  {
    extension = mRadius / QgsSymbolLayerV2Utils::pixelSizeScaleFactor( context, QgsSymbolV2::MapUnit, QgsMapUnitScale() );
  }
  else if ( mRadiusUnit == QgsSymbolV2::MM )
  {
    double pixelSize = mRadius * QgsSymbolLayerV2Utils::pixelSizeScaleFactor( context, QgsSymbolV2::MM, QgsMapUnitScale() );
    extension = pixelSize / QgsSymbolLayerV2Utils::pixelSizeScaleFactor( context, QgsSymbolV2::MapUnit, QgsMapUnitScale() );
  }
  else
  {
    extension = mRadius;
  }
  extent.setXMinimum( extent.xMinimum() - extension );
  extent.setXMaximum( extent.xMaximum() + extension );
  extent.setYMinimum( extent.yMinimum() - extension );
  extent.setYMaximum( extent.yMaximum() + extension );
}