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qgs3dmapsettings.cpp
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qgs3dmapsettings.cpp
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/***************************************************************************
qgs3dmapsettings.cpp
--------------------------------------
Date : July 2017
Copyright : (C) 2017 by Martin Dobias
Email : wonder dot sk at gmail dot com
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "qgs3dmapsettings.h"
#include "qgs3dutils.h"
#include "qgsflatterraingenerator.h"
#include "qgsdemterraingenerator.h"
//#include "quantizedmeshterraingenerator.h"
#include "qgsvectorlayer3drenderer.h"
#include <QDomDocument>
#include <QDomElement>
#include "qgssymbollayerutils.h"
#include "qgsrasterlayer.h"
Qgs3DMapSettings::Qgs3DMapSettings( const Qgs3DMapSettings &other )
: QObject( nullptr )
, mOrigin( other.mOrigin )
, mCrs( other.mCrs )
, mBackgroundColor( other.mBackgroundColor )
, mTerrainVerticalScale( other.mTerrainVerticalScale )
, mTerrainGenerator( other.mTerrainGenerator ? other.mTerrainGenerator->clone() : nullptr )
, mMapTileResolution( other.mMapTileResolution )
, mMaxTerrainScreenError( other.mMaxTerrainScreenError )
, mMaxTerrainGroundError( other.mMaxTerrainGroundError )
, mTerrainShadingEnabled( other.mTerrainShadingEnabled )
, mTerrainShadingMaterial( other.mTerrainShadingMaterial )
, mTerrainMapTheme( other.mTerrainMapTheme )
, mShowTerrainBoundingBoxes( other.mShowTerrainBoundingBoxes )
, mShowTerrainTileInfo( other.mShowTerrainTileInfo )
, mShowCameraViewCenter( other.mShowCameraViewCenter )
, mShowLabels( other.mShowLabels )
, mPointLights( other.mPointLights )
, mLayers( other.mLayers )
, mSkyboxEnabled( other.mSkyboxEnabled )
, mSkyboxFileBase( other.mSkyboxFileBase )
, mSkyboxFileExtension( other.mSkyboxFileExtension )
, mTransformContext( other.mTransformContext )
, mPathResolver( other.mPathResolver )
, mMapThemes( other.mMapThemes )
{
Q_FOREACH ( QgsAbstract3DRenderer *renderer, other.mRenderers )
{
mRenderers << renderer->clone();
}
}
Qgs3DMapSettings::~Qgs3DMapSettings()
{
qDeleteAll( mRenderers );
}
void Qgs3DMapSettings::readXml( const QDomElement &elem, const QgsReadWriteContext &context )
{
QDomElement elemOrigin = elem.firstChildElement( QStringLiteral( "origin" ) );
mOrigin = QgsVector3D(
elemOrigin.attribute( QStringLiteral( "x" ) ).toDouble(),
elemOrigin.attribute( QStringLiteral( "y" ) ).toDouble(),
elemOrigin.attribute( QStringLiteral( "z" ) ).toDouble() );
QDomElement elemColor = elem.firstChildElement( QStringLiteral( "color" ) );
if ( !elemColor.isNull() )
{
mBackgroundColor = QgsSymbolLayerUtils::decodeColor( elemColor.attribute( QStringLiteral( "background" ) ) );
mSelectionColor = QgsSymbolLayerUtils::decodeColor( elemColor.attribute( QStringLiteral( "selection" ) ) );
}
QDomElement elemCrs = elem.firstChildElement( QStringLiteral( "crs" ) );
mCrs.readXml( elemCrs );
QDomElement elemTerrain = elem.firstChildElement( QStringLiteral( "terrain" ) );
mTerrainVerticalScale = elemTerrain.attribute( QStringLiteral( "exaggeration" ), QStringLiteral( "1" ) ).toFloat();
mMapTileResolution = elemTerrain.attribute( QStringLiteral( "texture-size" ), QStringLiteral( "512" ) ).toInt();
mMaxTerrainScreenError = elemTerrain.attribute( QStringLiteral( "max-terrain-error" ), QStringLiteral( "3" ) ).toFloat();
mMaxTerrainGroundError = elemTerrain.attribute( QStringLiteral( "max-ground-error" ), QStringLiteral( "1" ) ).toFloat();
mTerrainShadingEnabled = elemTerrain.attribute( QStringLiteral( "shading-enabled" ), QStringLiteral( "0" ) ).toInt();
QDomElement elemTerrainShadingMaterial = elemTerrain.firstChildElement( QStringLiteral( "shading-material" ) );
if ( !elemTerrainShadingMaterial.isNull() )
mTerrainShadingMaterial.readXml( elemTerrainShadingMaterial );
mTerrainMapTheme = elemTerrain.attribute( QStringLiteral( "map-theme" ) );
mShowLabels = elemTerrain.attribute( QStringLiteral( "show-labels" ), QStringLiteral( "0" ) ).toInt();
mPointLights.clear();
QDomElement elemPointLights = elem.firstChildElement( QStringLiteral( "point-lights" ) );
if ( !elemPointLights.isNull() )
{
QDomElement elemPointLight = elemPointLights.firstChildElement( QStringLiteral( "point-light" ) );
while ( !elemPointLight.isNull() )
{
QgsPointLightSettings pointLight;
pointLight.readXml( elemPointLight );
mPointLights << pointLight;
elemPointLight = elemPointLight.nextSiblingElement( QStringLiteral( "point-light" ) );
}
}
else
{
// QGIS <= 3.4 did not have light configuration
QgsPointLightSettings defaultLight;
defaultLight.setPosition( QgsVector3D( 0, 1000, 0 ) );
mPointLights << defaultLight;
}
QDomElement elemMapLayers = elemTerrain.firstChildElement( QStringLiteral( "layers" ) );
QDomElement elemMapLayer = elemMapLayers.firstChildElement( QStringLiteral( "layer" ) );
QList<QgsMapLayerRef> mapLayers;
while ( !elemMapLayer.isNull() )
{
mapLayers << QgsMapLayerRef( elemMapLayer.attribute( QStringLiteral( "id" ) ) );
elemMapLayer = elemMapLayer.nextSiblingElement( QStringLiteral( "layer" ) );
}
mLayers = mapLayers; // needs to resolve refs afterwards
QDomElement elemTerrainGenerator = elemTerrain.firstChildElement( QStringLiteral( "generator" ) );
QString terrainGenType = elemTerrainGenerator.attribute( QStringLiteral( "type" ) );
if ( terrainGenType == QLatin1String( "dem" ) )
{
QgsDemTerrainGenerator *demTerrainGenerator = new QgsDemTerrainGenerator;
demTerrainGenerator->setCrs( mCrs, mTransformContext );
mTerrainGenerator.reset( demTerrainGenerator );
}
else if ( terrainGenType == QLatin1String( "quantized-mesh" ) )
{
#if 0
terrainGenerator.reset( new QuantizedMeshTerrainGenerator );
#endif
Q_ASSERT( false ); // currently disabled
}
else // "flat"
{
QgsFlatTerrainGenerator *flatGen = new QgsFlatTerrainGenerator;
flatGen->setCrs( mCrs );
mTerrainGenerator.reset( flatGen );
}
mTerrainGenerator->readXml( elemTerrainGenerator );
qDeleteAll( mRenderers );
mRenderers.clear();
QDomElement elemRenderers = elem.firstChildElement( QStringLiteral( "renderers" ) );
QDomElement elemRenderer = elemRenderers.firstChildElement( QStringLiteral( "renderer" ) );
while ( !elemRenderer.isNull() )
{
QgsAbstract3DRenderer *renderer = nullptr;
QString type = elemRenderer.attribute( QStringLiteral( "type" ) );
if ( type == QLatin1String( "vector" ) )
{
renderer = new QgsVectorLayer3DRenderer;
}
if ( renderer )
{
renderer->readXml( elemRenderer, context );
mRenderers.append( renderer );
}
elemRenderer = elemRenderer.nextSiblingElement( QStringLiteral( "renderer" ) );
}
QDomElement elemSkybox = elem.firstChildElement( QStringLiteral( "skybox" ) );
mSkyboxEnabled = elemSkybox.attribute( QStringLiteral( "enabled" ), QStringLiteral( "0" ) ).toInt();
mSkyboxFileBase = elemSkybox.attribute( QStringLiteral( "file-base" ) );
mSkyboxFileExtension = elemSkybox.attribute( QStringLiteral( "file-ext" ) );
QDomElement elemDebug = elem.firstChildElement( QStringLiteral( "debug" ) );
mShowTerrainBoundingBoxes = elemDebug.attribute( QStringLiteral( "bounding-boxes" ), QStringLiteral( "0" ) ).toInt();
mShowTerrainTileInfo = elemDebug.attribute( QStringLiteral( "terrain-tile-info" ), QStringLiteral( "0" ) ).toInt();
mShowCameraViewCenter = elemDebug.attribute( QStringLiteral( "camera-view-center" ), QStringLiteral( "0" ) ).toInt();
}
QDomElement Qgs3DMapSettings::writeXml( QDomDocument &doc, const QgsReadWriteContext &context ) const
{
QDomElement elem = doc.createElement( QStringLiteral( "qgis3d" ) );
QDomElement elemOrigin = doc.createElement( QStringLiteral( "origin" ) );
elemOrigin.setAttribute( QStringLiteral( "x" ), QString::number( mOrigin.x() ) );
elemOrigin.setAttribute( QStringLiteral( "y" ), QString::number( mOrigin.y() ) );
elemOrigin.setAttribute( QStringLiteral( "z" ), QString::number( mOrigin.z() ) );
elem.appendChild( elemOrigin );
QDomElement elemColor = doc.createElement( QStringLiteral( "color" ) );
elemColor.setAttribute( QStringLiteral( "background" ), QgsSymbolLayerUtils::encodeColor( mBackgroundColor ) );
elemColor.setAttribute( QStringLiteral( "selection" ), QgsSymbolLayerUtils::encodeColor( mSelectionColor ) );
elem.appendChild( elemColor );
QDomElement elemCrs = doc.createElement( QStringLiteral( "crs" ) );
mCrs.writeXml( elemCrs, doc );
elem.appendChild( elemCrs );
QDomElement elemTerrain = doc.createElement( QStringLiteral( "terrain" ) );
elemTerrain.setAttribute( QStringLiteral( "exaggeration" ), QString::number( mTerrainVerticalScale ) );
elemTerrain.setAttribute( QStringLiteral( "texture-size" ), mMapTileResolution );
elemTerrain.setAttribute( QStringLiteral( "max-terrain-error" ), QString::number( mMaxTerrainScreenError ) );
elemTerrain.setAttribute( QStringLiteral( "max-ground-error" ), QString::number( mMaxTerrainGroundError ) );
elemTerrain.setAttribute( QStringLiteral( "shading-enabled" ), mTerrainShadingEnabled ? 1 : 0 );
QDomElement elemTerrainShadingMaterial = doc.createElement( QStringLiteral( "shading-material" ) );
mTerrainShadingMaterial.writeXml( elemTerrainShadingMaterial );
elemTerrain.appendChild( elemTerrainShadingMaterial );
elemTerrain.setAttribute( QStringLiteral( "map-theme" ), mTerrainMapTheme );
elemTerrain.setAttribute( QStringLiteral( "show-labels" ), mShowLabels ? 1 : 0 );
QDomElement elemPointLights = doc.createElement( QStringLiteral( "point-lights" ) );
for ( const QgsPointLightSettings &pointLight : qgis::as_const( mPointLights ) )
{
QDomElement elemPointLight = pointLight.writeXml( doc );
elemPointLights.appendChild( elemPointLight );
}
elem.appendChild( elemPointLights );
QDomElement elemMapLayers = doc.createElement( QStringLiteral( "layers" ) );
Q_FOREACH ( const QgsMapLayerRef &layerRef, mLayers )
{
QDomElement elemMapLayer = doc.createElement( QStringLiteral( "layer" ) );
elemMapLayer.setAttribute( QStringLiteral( "id" ), layerRef.layerId );
elemMapLayers.appendChild( elemMapLayer );
}
elemTerrain.appendChild( elemMapLayers );
QDomElement elemTerrainGenerator = doc.createElement( QStringLiteral( "generator" ) );
elemTerrainGenerator.setAttribute( QStringLiteral( "type" ), QgsTerrainGenerator::typeToString( mTerrainGenerator->type() ) );
mTerrainGenerator->writeXml( elemTerrainGenerator );
elemTerrain.appendChild( elemTerrainGenerator );
elem.appendChild( elemTerrain );
QDomElement elemRenderers = doc.createElement( QStringLiteral( "renderers" ) );
Q_FOREACH ( const QgsAbstract3DRenderer *renderer, mRenderers )
{
QDomElement elemRenderer = doc.createElement( QStringLiteral( "renderer" ) );
elemRenderer.setAttribute( QStringLiteral( "type" ), renderer->type() );
renderer->writeXml( elemRenderer, context );
elemRenderers.appendChild( elemRenderer );
}
elem.appendChild( elemRenderers );
QDomElement elemSkybox = doc.createElement( QStringLiteral( "skybox" ) );
elemSkybox.setAttribute( QStringLiteral( "enabled" ), mSkyboxEnabled ? 1 : 0 );
// TODO: use context for relative paths, maybe explicitly list all files(?)
elemSkybox.setAttribute( QStringLiteral( "file-base" ), mSkyboxFileBase );
elemSkybox.setAttribute( QStringLiteral( "file-ext" ), mSkyboxFileExtension );
elem.appendChild( elemSkybox );
QDomElement elemDebug = doc.createElement( QStringLiteral( "debug" ) );
elemDebug.setAttribute( QStringLiteral( "bounding-boxes" ), mShowTerrainBoundingBoxes ? 1 : 0 );
elemDebug.setAttribute( QStringLiteral( "terrain-tile-info" ), mShowTerrainTileInfo ? 1 : 0 );
elemDebug.setAttribute( QStringLiteral( "camera-view-center" ), mShowCameraViewCenter ? 1 : 0 );
elem.appendChild( elemDebug );
return elem;
}
void Qgs3DMapSettings::resolveReferences( const QgsProject &project )
{
for ( int i = 0; i < mLayers.count(); ++i )
{
QgsMapLayerRef &layerRef = mLayers[i];
layerRef.setLayer( project.mapLayer( layerRef.layerId ) );
}
mTerrainGenerator->resolveReferences( project );
for ( int i = 0; i < mRenderers.count(); ++i )
{
QgsAbstract3DRenderer *renderer = mRenderers[i];
renderer->resolveReferences( project );
}
}
QgsVector3D Qgs3DMapSettings::mapToWorldCoordinates( const QgsVector3D &mapCoords ) const
{
return Qgs3DUtils::mapToWorldCoordinates( mapCoords, mOrigin );
}
QgsVector3D Qgs3DMapSettings::worldToMapCoordinates( const QgsVector3D &worldCoords ) const
{
return Qgs3DUtils::worldToMapCoordinates( worldCoords, mOrigin );
}
void Qgs3DMapSettings::setCrs( const QgsCoordinateReferenceSystem &crs )
{
mCrs = crs;
}
QgsCoordinateTransformContext Qgs3DMapSettings::transformContext() const
{
return mTransformContext;
}
void Qgs3DMapSettings::setTransformContext( const QgsCoordinateTransformContext &context )
{
mTransformContext = context;
}
void Qgs3DMapSettings::setBackgroundColor( const QColor &color )
{
if ( color == mBackgroundColor )
return;
mBackgroundColor = color;
emit backgroundColorChanged();
}
QColor Qgs3DMapSettings::backgroundColor() const
{
return mBackgroundColor;
}
void Qgs3DMapSettings::setSelectionColor( const QColor &color )
{
if ( color == mSelectionColor )
return;
mSelectionColor = color;
emit selectionColorChanged();
}
QColor Qgs3DMapSettings::selectionColor() const
{
return mSelectionColor;
}
void Qgs3DMapSettings::setTerrainVerticalScale( double zScale )
{
if ( zScale == mTerrainVerticalScale )
return;
mTerrainVerticalScale = zScale;
emit terrainVerticalScaleChanged();
}
double Qgs3DMapSettings::terrainVerticalScale() const
{
return mTerrainVerticalScale;
}
void Qgs3DMapSettings::setLayers( const QList<QgsMapLayer *> &layers )
{
QList<QgsMapLayerRef> lst;
lst.reserve( layers.count() );
Q_FOREACH ( QgsMapLayer *layer, layers )
{
lst.append( layer );
}
if ( mLayers == lst )
return;
mLayers = lst;
emit layersChanged();
}
QList<QgsMapLayer *> Qgs3DMapSettings::layers() const
{
QList<QgsMapLayer *> lst;
lst.reserve( mLayers.count() );
Q_FOREACH ( const QgsMapLayerRef &layerRef, mLayers )
{
if ( layerRef.layer )
lst.append( layerRef.layer );
}
return lst;
}
void Qgs3DMapSettings::setMapTileResolution( int res )
{
if ( mMapTileResolution == res )
return;
mMapTileResolution = res;
emit mapTileResolutionChanged();
}
int Qgs3DMapSettings::mapTileResolution() const
{
return mMapTileResolution;
}
void Qgs3DMapSettings::setMaxTerrainScreenError( float error )
{
if ( mMaxTerrainScreenError == error )
return;
mMaxTerrainScreenError = error;
emit maxTerrainScreenErrorChanged();
}
float Qgs3DMapSettings::maxTerrainScreenError() const
{
return mMaxTerrainScreenError;
}
void Qgs3DMapSettings::setMaxTerrainGroundError( float error )
{
if ( mMaxTerrainGroundError == error )
return;
mMaxTerrainGroundError = error;
emit maxTerrainGroundErrorChanged();
}
float Qgs3DMapSettings::maxTerrainGroundError() const
{
return mMaxTerrainGroundError;
}
void Qgs3DMapSettings::setTerrainGenerator( QgsTerrainGenerator *gen )
{
mTerrainGenerator.reset( gen );
emit terrainGeneratorChanged();
}
void Qgs3DMapSettings::setTerrainShadingEnabled( bool enabled )
{
if ( mTerrainShadingEnabled == enabled )
return;
mTerrainShadingEnabled = enabled;
emit terrainShadingChanged();
}
void Qgs3DMapSettings::setTerrainShadingMaterial( const QgsPhongMaterialSettings &material )
{
if ( mTerrainShadingMaterial == material )
return;
mTerrainShadingMaterial = material;
emit terrainShadingChanged();
}
void Qgs3DMapSettings::setTerrainMapTheme( const QString &theme )
{
if ( mTerrainMapTheme == theme )
return;
mTerrainMapTheme = theme;
emit terrainMapThemeChanged();
}
void Qgs3DMapSettings::setRenderers( const QList<QgsAbstract3DRenderer *> &renderers )
{
mRenderers = renderers;
}
void Qgs3DMapSettings::setShowTerrainBoundingBoxes( bool enabled )
{
if ( mShowTerrainBoundingBoxes == enabled )
return;
mShowTerrainBoundingBoxes = enabled;
emit showTerrainBoundingBoxesChanged();
}
void Qgs3DMapSettings::setShowTerrainTilesInfo( bool enabled )
{
if ( mShowTerrainTileInfo == enabled )
return;
mShowTerrainTileInfo = enabled;
emit showTerrainTilesInfoChanged();
}
void Qgs3DMapSettings::setShowCameraViewCenter( bool enabled )
{
if ( mShowCameraViewCenter == enabled )
return;
mShowCameraViewCenter = enabled;
emit showCameraViewCenterChanged();
}
void Qgs3DMapSettings::setShowLabels( bool enabled )
{
if ( mShowLabels == enabled )
return;
mShowLabels = enabled;
emit showLabelsChanged();
}
void Qgs3DMapSettings::setPointLights( const QList<QgsPointLightSettings> &pointLights )
{
if ( mPointLights == pointLights )
return;
mPointLights = pointLights;
emit pointLightsChanged();
}