QVector<QgsLineString> QgsTriangle::medians() const
{
QVector<QgsLineString> med;
QgsLineString med1;
QgsLineString med2;
QgsLineString med3;
med1.setPoints( QgsPointSequence() << vertexAt( 0 ) << QgsGeometryUtils::midpoint( vertexAt( 1 ), vertexAt( 2 ) ) );
med2.setPoints( QgsPointSequence() << vertexAt( 1 ) << QgsGeometryUtils::midpoint( vertexAt( 0 ), vertexAt( 2 ) ) );
med3.setPoints( QgsPointSequence() << vertexAt( 2 ) << QgsGeometryUtils::midpoint( vertexAt( 0 ), vertexAt( 1 ) ) );
med.append( med1 );
med.append( med2 );
med.append( med3 );
return med;
}
QgsCoordinateSequence QgsCurve::coordinateSequence() const
{
QgsCoordinateSequence sequence;
sequence.append( QgsRingSequence() );
sequence.back().append( QgsPointSequence() );
points( sequence.back().back() );
return sequence;
}
QgsCoordinateSequence QgsCurvePolygon::coordinateSequence() const
{
QgsCoordinateSequence sequence;
sequence.append( QgsRingSequence() );
if ( mExteriorRing )
{
sequence.back().append( QgsPointSequence() );
mExteriorRing->points( sequence.back().back() );
}
for ( const QgsCurve *ring : mInteriorRings )
{
sequence.back().append( QgsPointSequence() );
ring->points( sequence.back().back() );
}
return sequence;
}
QgsCoordinateSequence QgsCurve::coordinateSequence() const
{
if ( !mCoordinateSequence.isEmpty() )
return mCoordinateSequence;
mCoordinateSequence.append( QgsRingSequence() );
mCoordinateSequence.back().append( QgsPointSequence() );
points( mCoordinateSequence.back().back() );
return mCoordinateSequence;
}
QVector<QgsLineString> QgsTriangle::bisectors( double lengthTolerance ) const
{
QVector<QgsLineString> bis;
QgsLineString bis1;
QgsLineString bis2;
QgsLineString bis3;
QgsPoint incenter = inscribedCenter();
QgsPoint out;
QgsGeometryUtils::segmentIntersection( vertexAt( 0 ), incenter, vertexAt( 1 ), vertexAt( 2 ), out, lengthTolerance );
bis1.setPoints( QgsPointSequence() << vertexAt( 0 ) << out );
QgsGeometryUtils::segmentIntersection( vertexAt( 1 ), incenter, vertexAt( 0 ), vertexAt( 2 ), out, lengthTolerance );
bis2.setPoints( QgsPointSequence() << vertexAt( 1 ) << out );
QgsGeometryUtils::segmentIntersection( vertexAt( 2 ), incenter, vertexAt( 0 ), vertexAt( 1 ), out, lengthTolerance );
bis3.setPoints( QgsPointSequence() << vertexAt( 2 ) << out );
bis.append( bis1 );
bis.append( bis2 );
bis.append( bis3 );
return bis;
}
void QgsMapToolAddPart::cadCanvasReleaseEvent( QgsMapMouseEvent *e )
{
//check if we operate on a vector layer
QgsVectorLayer *vlayer = currentVectorLayer();
if ( !vlayer )
{
notifyNotVectorLayer();
return;
}
if ( !vlayer->isEditable() )
{
notifyNotEditableLayer();
return;
}
bool isGeometryEmpty = false;
QgsFeatureList selectedFeatures = vlayer->selectedFeatures();
if ( !selectedFeatures.isEmpty() && selectedFeatures.at( 0 ).geometry().isNull() )
isGeometryEmpty = true;
if ( !checkSelection() )
{
stopCapturing();
return;
}
int errorCode = 0;
switch ( mode() )
{
case CapturePoint:
{
QgsPoint layerPoint;
QgsPointXY mapPoint = e->mapPoint();
if ( nextPoint( QgsPoint( mapPoint ), layerPoint ) != 0 )
{
QgsDebugMsg( "nextPoint failed" );
return;
}
vlayer->beginEditCommand( tr( "Part added" ) );
errorCode = vlayer->addPart( QgsPointSequence() << layerPoint );
}
break;
case CaptureLine:
case CapturePolygon:
{
//add point to list and to rubber band
if ( e->button() == Qt::LeftButton )
{
int error = addVertex( e->mapPoint(), e->mapPointMatch() );
if ( error == 1 )
{
QgsDebugMsg( "current layer is not a vector layer" );
return;
}
else if ( error == 2 )
{
//problem with coordinate transformation
emit messageEmitted( tr( "Coordinate transform error. Cannot transform the point to the layers coordinate system" ), Qgis::Warning );
return;
}
startCapturing();
return;
}
else if ( e->button() != Qt::RightButton )
{
deleteTempRubberBand();
return;
}
if ( !isCapturing() )
return;
if ( mode() == CapturePolygon )
{
closePolygon();
}
//does compoundcurve contain circular strings?
//does provider support circular strings?
bool hasCurvedSegments = captureCurve()->hasCurvedSegments();
bool providerSupportsCurvedSegments = vlayer->dataProvider()->capabilities() & QgsVectorDataProvider::CircularGeometries;
QgsCurve *curveToAdd = nullptr;
if ( hasCurvedSegments && providerSupportsCurvedSegments )
{
curveToAdd = captureCurve()->clone();
}
else
{
curveToAdd = captureCurve()->curveToLine();
}
vlayer->beginEditCommand( tr( "Part added" ) );
if ( mode() == CapturePolygon )
{
//avoid intersections
QgsCurvePolygon *cp = new QgsCurvePolygon();
cp->setExteriorRing( curveToAdd );
QgsGeometry *geom = new QgsGeometry( cp );
geom->avoidIntersections( QgsProject::instance()->avoidIntersectionsLayers() );
const QgsCurvePolygon *cpGeom = qgsgeometry_cast<const QgsCurvePolygon *>( geom->constGet() );
if ( !cpGeom )
{
stopCapturing();
delete geom;
vlayer->destroyEditCommand();
return;
}
errorCode = vlayer->addPart( cpGeom->exteriorRing()->clone() );
delete geom;
}
else
{
errorCode = vlayer->addPart( curveToAdd );
}
stopCapturing();
}
break;
default:
Q_ASSERT( !"invalid capture mode" );
errorCode = 6;
break;
}
QString errorMessage;
switch ( errorCode )
{
case 0:
{
// remove previous message
emit messageDiscarded();
//add points to other features to keep topology up-to-date
bool topologicalEditing = QgsProject::instance()->topologicalEditing();
if ( topologicalEditing )
{
addTopologicalPoints( points() );
}
vlayer->endEditCommand();
vlayer->triggerRepaint();
if ( ( !isGeometryEmpty ) && QgsWkbTypes::isSingleType( vlayer->wkbType() ) )
{
emit messageEmitted( tr( "Add part: Feature geom is single part and you've added more than one" ), Qgis::Warning );
}
return;
}
case 1:
errorMessage = tr( "Selected feature is not multi part." );
break;
case 2:
errorMessage = tr( "New part's geometry is not valid." );
break;
case 3:
errorMessage = tr( "New polygon ring not disjoint with existing polygons." );
break;
case 4:
errorMessage = tr( "No feature selected. Please select a feature with the selection tool or in the attribute table" );
break;
case 5:
errorMessage = tr( "Several features are selected. Please select only one feature to which an island should be added." );
break;
case 6:
errorMessage = tr( "Selected geometry could not be found" );
break;
}
emit messageEmitted( errorMessage, Qgis::Warning );
vlayer->destroyEditCommand();
}
bool QgsEllipseSymbolLayer::writeDxf( QgsDxfExport &e, double mmMapUnitScaleFactor, const QString &layerName, QgsSymbolRenderContext &context, QPointF shift ) const
{
//width
double symbolWidth = mSymbolWidth;
if ( mDataDefinedProperties.isActive( QgsSymbolLayer::PropertyWidth ) ) //1. priority: data defined setting on symbol layer le
{
context.setOriginalValueVariable( mSymbolWidth );
symbolWidth = mDataDefinedProperties.valueAsDouble( QgsSymbolLayer::PropertyWidth, context.renderContext().expressionContext(), mSymbolWidth );
}
if ( mSymbolWidthUnit == QgsUnitTypes::RenderMillimeters )
{
symbolWidth *= mmMapUnitScaleFactor;
}
//height
double symbolHeight = mSymbolHeight;
if ( mDataDefinedProperties.isActive( QgsSymbolLayer::PropertyHeight ) ) //1. priority: data defined setting on symbol layer level
{
context.setOriginalValueVariable( mSymbolHeight );
symbolWidth = mDataDefinedProperties.valueAsDouble( QgsSymbolLayer::PropertyHeight, context.renderContext().expressionContext(), mSymbolHeight );
}
if ( mSymbolHeightUnit == QgsUnitTypes::RenderMillimeters )
{
symbolHeight *= mmMapUnitScaleFactor;
}
//stroke width
double strokeWidth = mStrokeWidth;
if ( mDataDefinedProperties.isActive( QgsSymbolLayer::PropertyStrokeWidth ) )
{
context.setOriginalValueVariable( mStrokeWidth );
strokeWidth = mDataDefinedProperties.valueAsDouble( QgsSymbolLayer::PropertyStrokeWidth, context.renderContext().expressionContext(), mStrokeWidth );
}
if ( mStrokeWidthUnit == QgsUnitTypes::RenderMillimeters )
{
strokeWidth *= strokeWidth;
}
//fill color
QColor fc = mColor;
if ( mDataDefinedProperties.isActive( QgsSymbolLayer::PropertyFillColor ) )
{
context.setOriginalValueVariable( QgsSymbolLayerUtils::encodeColor( mColor ) );
fc = mDataDefinedProperties.valueAsColor( QgsSymbolLayer::PropertyFillColor, context.renderContext().expressionContext(), mColor );
}
//stroke color
QColor oc = mStrokeColor;
if ( mDataDefinedProperties.isActive( QgsSymbolLayer::PropertyStrokeColor ) )
{
context.setOriginalValueVariable( QgsSymbolLayerUtils::encodeColor( mStrokeColor ) );
oc = mDataDefinedProperties.valueAsColor( QgsSymbolLayer::PropertyStrokeColor, context.renderContext().expressionContext(), mStrokeColor );
}
//symbol name
QString symbolName = mSymbolName;
if ( mDataDefinedProperties.isActive( QgsSymbolLayer::PropertyName ) )
{
context.setOriginalValueVariable( mSymbolName );
symbolName = mDataDefinedProperties.valueAsString( QgsSymbolLayer::PropertyName, context.renderContext().expressionContext(), mSymbolName );
}
//offset
double offsetX = 0;
double offsetY = 0;
markerOffset( context, offsetX, offsetY );
QPointF off( offsetX, offsetY );
//priority for rotation: 1. data defined symbol level, 2. symbol layer rotation (mAngle)
double rotation = 0.0;
if ( mDataDefinedProperties.isActive( QgsSymbolLayer::PropertyAngle ) )
{
context.setOriginalValueVariable( mAngle );
rotation = mDataDefinedProperties.valueAsDouble( QgsSymbolLayer::PropertyAngle, context.renderContext().expressionContext(), mAngle ) + mLineAngle;
}
else if ( !qgsDoubleNear( mAngle + mLineAngle, 0.0 ) )
{
rotation = mAngle + mLineAngle;
}
rotation = -rotation; //rotation in Qt is counterclockwise
if ( rotation )
off = _rotatedOffset( off, rotation );
QTransform t;
t.translate( shift.x() + offsetX, shift.y() + offsetY );
if ( !qgsDoubleNear( rotation, 0.0 ) )
t.rotate( rotation );
double halfWidth = symbolWidth / 2.0;
double halfHeight = symbolHeight / 2.0;
if ( symbolName == QLatin1String( "circle" ) )
{
if ( qgsDoubleNear( halfWidth, halfHeight ) )
{
QgsPoint pt( t.map( QPointF( 0, 0 ) ) );
e.writeFilledCircle( layerName, oc, pt, halfWidth );
}
else
{
QgsPointSequence line;
double stepsize = 2 * M_PI / 40;
for ( int i = 0; i < 39; ++i )
{
double angle = stepsize * i;
double x = halfWidth * std::cos( angle );
double y = halfHeight * std::sin( angle );
line << QgsPoint( t.map( QPointF( x, y ) ) );
}
//close ellipse with first point
line << line.at( 0 );
if ( mBrush.style() != Qt::NoBrush )
e.writePolygon( QgsRingSequence() << line, layerName, QStringLiteral( "SOLID" ), fc );
if ( mPen.style() != Qt::NoPen )
e.writePolyline( line, layerName, QStringLiteral( "CONTINUOUS" ), oc, strokeWidth );
}
}
else if ( symbolName == QLatin1String( "rectangle" ) )
{
QgsPointSequence p;
p << QgsPoint( t.map( QPointF( -halfWidth, -halfHeight ) ) )
<< QgsPoint( t.map( QPointF( halfWidth, -halfHeight ) ) )
<< QgsPoint( t.map( QPointF( halfWidth, halfHeight ) ) )
<< QgsPoint( t.map( QPointF( -halfWidth, halfHeight ) ) );
p << p[0];
if ( mBrush.style() != Qt::NoBrush )
e.writePolygon( QgsRingSequence() << p, layerName, QStringLiteral( "SOLID" ), fc );
if ( mPen.style() != Qt::NoPen )
e.writePolyline( p, layerName, QStringLiteral( "CONTINUOUS" ), oc, strokeWidth );
return true;
}
else if ( symbolName == QLatin1String( "cross" ) && mPen.style() != Qt::NoPen )
{
e.writePolyline( QgsPointSequence()
<< QgsPoint( t.map( QPointF( -halfWidth, 0 ) ) )
<< QgsPoint( t.map( QPointF( halfWidth, 0 ) ) ),
layerName, QStringLiteral( "CONTINUOUS" ), oc, strokeWidth );
e.writePolyline( QgsPointSequence()
<< QgsPoint( t.map( QPointF( 0, halfHeight ) ) )
<< QgsPoint( t.map( QPointF( 0, -halfHeight ) ) ),
layerName, QStringLiteral( "CONTINUOUS" ), oc, strokeWidth );
return true;
}
else if ( symbolName == QLatin1String( "triangle" ) )
{
QgsPointSequence p;
p << QgsPoint( t.map( QPointF( -halfWidth, -halfHeight ) ) )
<< QgsPoint( t.map( QPointF( halfWidth, -halfHeight ) ) )
<< QgsPoint( t.map( QPointF( 0, halfHeight ) ) );
p << p[0];
if ( mBrush.style() != Qt::NoBrush )
e.writePolygon( QgsRingSequence() << p, layerName, QStringLiteral( "SOLID" ), fc );
if ( mPen.style() != Qt::NoPen )
e.writePolyline( p, layerName, QStringLiteral( "CONTINUOUS" ), oc, strokeWidth );
return true;
}
return false; //soon...
}
