QString QgsMultiSurface::asJSON( int precision ) const
{
// GeoJSON does not support curves
QString json = QStringLiteral( "{\"type\": \"MultiPolygon\", \"coordinates\": [" );
Q_FOREACH ( const QgsAbstractGeometry *geom, mGeometries )
{
if ( dynamic_cast<const QgsSurface*>( geom ) )
{
json += '[';
QgsPolygonV2* polygon = static_cast<const QgsSurface*>( geom )->surfaceToPolygon();
QgsLineString* exteriorLineString = polygon->exteriorRing()->curveToLine();
QgsPointSequence exteriorPts;
exteriorLineString->points( exteriorPts );
json += QgsGeometryUtils::pointsToJSON( exteriorPts, precision ) + ", ";
delete exteriorLineString;
for ( int i = 0, n = polygon->numInteriorRings(); i < n; ++i )
{
QgsLineString* interiorLineString = polygon->interiorRing( i )->curveToLine();
QgsPointSequence interiorPts;
interiorLineString->points( interiorPts );
json += QgsGeometryUtils::pointsToJSON( interiorPts, precision ) + ", ";
delete interiorLineString;
}
if ( json.endsWith( QLatin1String( ", " ) ) )
{
json.chop( 2 ); // Remove last ", "
}
delete polygon;
json += QLatin1String( "], " );
}
}
if ( json.endsWith( QLatin1String( ", " ) ) )
{
json.chop( 2 ); // Remove last ", "
}
json += QLatin1String( "] }" );
return json;
}
int QgsMapToolCapture::addCurve( QgsCurve *c )
{
if ( !c )
{
return 1;
}
if ( !mRubberBand )
{
mRubberBand = createRubberBand( mCaptureMode == CapturePolygon ? QgsWkbTypes::PolygonGeometry : QgsWkbTypes::LineGeometry );
}
QgsLineString *lineString = c->curveToLine();
QgsPointSequence linePoints;
lineString->points( linePoints );
delete lineString;
QgsPointSequence::const_iterator ptIt = linePoints.constBegin();
for ( ; ptIt != linePoints.constEnd(); ++ptIt )
{
mRubberBand->addPoint( QgsPointXY( ptIt->x(), ptIt->y() ) );
}
if ( !mTempRubberBand )
{
mTempRubberBand = createRubberBand( mCaptureMode == CapturePolygon ? QgsWkbTypes::PolygonGeometry : QgsWkbTypes::LineGeometry, true );
}
else
{
mTempRubberBand->reset();
}
QgsPoint endPt = c->endPoint();
mTempRubberBand->addPoint( QgsPointXY( endPt.x(), endPt.y() ) ); //add last point of c
//transform back to layer CRS in case map CRS and layer CRS are different
QgsVectorLayer *vlayer = qobject_cast<QgsVectorLayer *>( mCanvas->currentLayer() );
QgsCoordinateTransform ct = mCanvas->mapSettings().layerTransform( vlayer );
if ( ct.isValid() )
{
c->transform( ct, QgsCoordinateTransform::ReverseTransform );
}
mCaptureCurve.addCurve( c );
for ( int i = 0; i < c->length(); ++i )
mSnappingMatches.append( QgsPointLocator::Match() );
return 0;
}
