void TestQgsGeometrySnapper::snapPointToLine()
{
QgsVectorLayer* rl = new QgsVectorLayer( QStringLiteral( "Linestring" ), QStringLiteral( "x" ), QStringLiteral( "memory" ) );
// closed linestring
QgsGeometry refGeom = QgsGeometry::fromWkt( QStringLiteral( "LineString(0 0, 10 0, 10 10, 0 10, 0 0)" ) );
QgsFeature ff( 0 );
ff.setGeometry( refGeom );
QgsFeatureList flist;
flist << ff;
rl->dataProvider()->addFeatures( flist );
QgsGeometry pointGeom = QgsGeometry::fromWkt( QStringLiteral( "Point(0.1 -0.1)" ) );
QgsGeometrySnapper snapper( rl );
QgsGeometry result = snapper.snapGeometry( pointGeom, 1 );
QCOMPARE( result.exportToWkt(), QStringLiteral( "Point (0 0)" ) );
pointGeom = QgsGeometry::fromWkt( QStringLiteral( "Point(10.6 -0.1)" ) );
result = snapper.snapGeometry( pointGeom, 1 );
QCOMPARE( result.exportToWkt(), QStringLiteral( "Point (10 0)" ) );
pointGeom = QgsGeometry::fromWkt( QStringLiteral( "Point(0.5 0.5)" ) );
result = snapper.snapGeometry( pointGeom, 1 );
QCOMPARE( result.exportToWkt(), QStringLiteral( "Point (0 0)" ) );
}
void TestQgsGeometrySnapper::snapPolygonToPolygon()
{
QgsVectorLayer* rl = new QgsVectorLayer( QStringLiteral( "Polygon" ), QStringLiteral( "x" ), QStringLiteral( "memory" ) );
QgsFeature ff( 0 );
QgsGeometry refGeom = QgsGeometry::fromWkt( QStringLiteral( "Polygon((0 0, 10 0, 10 10, 0 10, 0 0))" ) );
ff.setGeometry( refGeom );
QgsFeatureList flist;
flist << ff;
rl->dataProvider()->addFeatures( flist );
QgsGeometry polygonGeom = QgsGeometry::fromWkt( QStringLiteral( "Polygon((0.1 -0.1, 10.1 0, 9.9 10.1, 0 10, 0.1 -0.1))" ) );
QgsGeometrySnapper snapper( rl );
QgsGeometry result = snapper.snapGeometry( polygonGeom, 1 );
QCOMPARE( result.exportToWkt(), QStringLiteral( "Polygon ((0 0, 10 0, 10 10, 0 10, 0 0))" ) );
QgsGeometry polygonGeom2 = QgsGeometry::fromWkt( QStringLiteral( "Polygon((0.1 -0.1, 10.1 0, 0 10, 0.1 -0.1))" ) );
result = snapper.snapGeometry( polygonGeom2, 1 );
QCOMPARE( result.exportToWkt(), QStringLiteral( "Polygon ((0 0, 10 0, 0 10, 0 0))" ) );
// insert new vertex
QgsGeometry polygonGeom3 = QgsGeometry::fromWkt( QStringLiteral( "Polygon((0.1 -0.1, 20.5 0.5, 20 10, 0 9.9, 0.1 -0.1))" ) );
result = snapper.snapGeometry( polygonGeom3, 1 );
QCOMPARE( result.exportToWkt(), QStringLiteral( "Polygon ((0 0, 10 0, 20.5 0.5, 20 10, 10 10, 0 10, 0 0))" ) );
// remove vertex
QgsGeometry polygonGeom4 = QgsGeometry::fromWkt( QStringLiteral( "Polygon((0.1 -0.1, 10.1 0, 9.9 10.1, 5 10, 0 10, 0.1 -0.1))" ) );
result = snapper.snapGeometry( polygonGeom4, 1 );
QCOMPARE( result.exportToWkt(), QStringLiteral( "Polygon ((0 0, 10 0, 10 10, 0 10, 0 0))" ) );
}
void TestQgsGeometrySnapper::snapLineToPoint()
{
QgsVectorLayer* rl = new QgsVectorLayer( QStringLiteral( "Point" ), QStringLiteral( "x" ), QStringLiteral( "memory" ) );
QgsGeometry refGeom = QgsGeometry::fromWkt( QStringLiteral( "Point(0 0)" ) );
QgsFeature ff( 0 );
ff.setGeometry( refGeom );
QgsGeometry refGeom2 = QgsGeometry::fromWkt( QStringLiteral( "Point(10 0)" ) );
QgsFeature ff2( 2 );
ff2.setGeometry( refGeom2 );
QgsFeatureList flist;
flist << ff << ff2;
rl->dataProvider()->addFeatures( flist );
QgsGeometry lineGeom = QgsGeometry::fromWkt( QStringLiteral( "LineString(0.1 -0.1, 10.1 0, 10 10, 0 10)" ) );
QgsGeometrySnapper snapper( rl );
QgsGeometry result = snapper.snapGeometry( lineGeom, 1 );
QCOMPARE( result.exportToWkt(), QStringLiteral( "LineString (0 0, 10 0, 10 10, 0 10)" ) );
QgsGeometry lineGeom2 = QgsGeometry::fromWkt( QStringLiteral( "LineString(0.1 -0.1, 10.1 0, 0 10)" ) );
result = snapper.snapGeometry( lineGeom2, 1 );
QCOMPARE( result.exportToWkt(), QStringLiteral( "LineString (0 0, 10 0, 0 10)" ) );
// insert new vertex
QgsGeometry lineGeom3 = QgsGeometry::fromWkt( QStringLiteral( "LineString(0.1 -0.1, 20.0 0.0, 20 10, 0 10)" ) );
result = snapper.snapGeometry( lineGeom3, 1 );
QCOMPARE( result.exportToWkt(), QStringLiteral( "LineString (0 0, 10 0, 20 0, 20 10, 0 10)" ) );
}
void QgsOfflineEditing::committedGeometriesChanges( const QString& qgisLayerId, const QgsGeometryMap& changedGeometries )
{
sqlite3* db = openLoggingDb();
if ( db == NULL )
{
return;
}
// insert log
int layerId = getOrCreateLayerId( db, qgisLayerId );
int commitNo = getCommitNo( db );
for ( QgsGeometryMap::const_iterator it = changedGeometries.begin(); it != changedGeometries.end(); ++it )
{
QgsFeatureId fid = it.key();
if ( isAddedFeature( db, layerId, fid ) )
{
// skip added features
continue;
}
QgsGeometry geom = it.value();
QString sql = QString( "INSERT INTO 'log_geometry_updates' VALUES ( %1, %2, %3, '%4' )" )
.arg( layerId )
.arg( commitNo )
.arg( fid )
.arg( geom.exportToWkt() );
sqlExec( db, sql );
// TODO: use WKB instead of WKT?
}
increaseCommitNo( db );
sqlite3_close( db );
}
void TestQgsGeometrySnapper::snapPolygonToLine()
{
QgsVectorLayer* rl = new QgsVectorLayer( QStringLiteral( "Linestring" ), QStringLiteral( "x" ), QStringLiteral( "memory" ) );
// closed linestring
QgsGeometry refGeom = QgsGeometry::fromWkt( QStringLiteral( "LineString(0 0, 10 0, 10 10, 0 10, 0 0)" ) );
QgsFeature ff( 0 );
ff.setGeometry( refGeom );
// unclosed linestring
QgsGeometry refGeom2 = QgsGeometry::fromWkt( QStringLiteral( "LineString(100 0, 110 0, 110 10, 100 10)" ) );
QgsFeature ff2( 2 );
ff2.setGeometry( refGeom2 );
QgsFeatureList flist;
flist << ff << ff2;
rl->dataProvider()->addFeatures( flist );
// snapping to closed linestring
QgsGeometry polygonGeom = QgsGeometry::fromWkt( QStringLiteral( "Polygon((0.1 -0.1, 10.1 0, 9.9 10.1, 0 10, 0.1 -0.1))" ) );
QgsGeometrySnapper snapper( rl );
QgsGeometry result = snapper.snapGeometry( polygonGeom, 1 );
QCOMPARE( result.exportToWkt(), QStringLiteral( "Polygon ((0 0, 10 0, 10 10, 0 10, 0 0))" ) );
QgsGeometry polygonGeom2 = QgsGeometry::fromWkt( QStringLiteral( "Polygon((0.1 -0.1, 10.1 0, 0 10, 0.1 -0.1))" ) );
result = snapper.snapGeometry( polygonGeom2, 1 );
QCOMPARE( result.exportToWkt(), QStringLiteral( "Polygon ((0 0, 10 0, 0 10, 0 0))" ) );
// insert new vertex
QgsGeometry polygonGeom3 = QgsGeometry::fromWkt( QStringLiteral( "Polygon((0.1 -0.1, 20.5 0.5, 20 10, 0 9.9, 0.1 -0.1))" ) );
result = snapper.snapGeometry( polygonGeom3, 1 );
QCOMPARE( result.exportToWkt(), QStringLiteral( "Polygon ((0 0, 10 0, 20.5 0.5, 20 10, 10 10, 0 10, 0 0))" ) );
// remove vertex
QgsGeometry polygonGeom4 = QgsGeometry::fromWkt( QStringLiteral( "Polygon((0.1 -0.1, 10.1 0, 9.9 10.1, 5 10, 0 10, 0.1 -0.1))" ) );
result = snapper.snapGeometry( polygonGeom4, 1 );
QCOMPARE( result.exportToWkt(), QStringLiteral( "Polygon ((0 0, 10 0, 10 10, 0 10, 0 0))" ) );
// snapping to unclosed linestring
QgsGeometry polygonGeom5 = QgsGeometry::fromWkt( QStringLiteral( "Polygon((100.1 -0.1, 110.1 0, 109.9 10.1, 100 10, 100.1 -0.1))" ) );
result = snapper.snapGeometry( polygonGeom5, 1 );
QCOMPARE( result.exportToWkt(), QStringLiteral( "Polygon ((100 0, 110 0, 110 10, 100 10, 100 0))" ) );
QgsGeometry polygonGeom6 = QgsGeometry::fromWkt( QStringLiteral( "Polygon((100.1 -0.1, 110.1 0, 100 10, 100.1 -0.1))" ) );
result = snapper.snapGeometry( polygonGeom6, 1 );
QCOMPARE( result.exportToWkt(), QStringLiteral( "Polygon ((100 0, 110 0, 100 10, 100 0))" ) );
// insert new vertex
QgsGeometry polygonGeom7 = QgsGeometry::fromWkt( QStringLiteral( "Polygon((100.1 -0.1, 120.5 0.5, 120 10, 100 9.9, 100.1 -0.1))" ) );
result = snapper.snapGeometry( polygonGeom7, 1 );
QCOMPARE( result.exportToWkt(), QStringLiteral( "Polygon ((100 0, 110 0, 120.5 0.5, 120 10, 110 10, 100 10, 100 0))" ) );
// remove vertex
QgsGeometry polygonGeom8 = QgsGeometry::fromWkt( QStringLiteral( "Polygon((100.1 -0.1, 110.1 0, 109.9 10.1, 105 10, 100 10, 100.1 -0.1))" ) );
result = snapper.snapGeometry( polygonGeom8, 1 );
QCOMPARE( result.exportToWkt(), QStringLiteral( "Polygon ((100 0, 110 0, 110 10, 100 10, 100 0))" ) );
}
QString TestQgsGrassCommand::toString() const
{
QString string;
if ( command == StartEditing )
{
string += "StartEditing grassLayerCode: " + values["grassLayerCode"].toString();
string += " expectedLayerType: " + values["expectedLayerType"].toString();
}
else if ( command == CommitChanges )
{
string += "CommitChanges";
}
else if ( command == RollBack )
{
string += "RollBack";
}
else if ( command == AddFeature )
{
string += "AddFeature ";
string += expectedFeature.constGeometry()->exportToWkt( 1 );
}
else if ( command == DeleteFeature )
{
string += "DeleteFeature ";
string += QString( "fid: %1" ).arg( fid );
}
else if ( command == ChangeGeometry )
{
string += "ChangeGeometry ";
string += QString( "fid: %1 geometry: %2" ).arg( fid ).arg( geometry->exportToWkt( 1 ) );
}
else if ( command == AddAttribute )
{
string += "AddAttribute ";
string += "name: " + field.name() + " type: " + QVariant::typeToName( field.type() );
}
else if ( command == DeleteAttribute )
{
string += "DeleteAttribute ";
string += "name: " + field.name();
}
else if ( command == ChangeAttributeValue )
{
string += "ChangeAttributeValue ";
string += "name: " + field.name() + " value: " + value.toString();
}
else if ( command == UndoAll )
{
string += "UndoAll";
}
else if ( command == RedoAll )
{
string += "RedoAll";
}
return string;
}
void TestQgsGeometrySnapper::snapPointToPoint()
{
QgsVectorLayer* rl = new QgsVectorLayer( QStringLiteral( "Point" ), QStringLiteral( "x" ), QStringLiteral( "memory" ) );
QgsGeometry refGeom = QgsGeometry::fromWkt( QStringLiteral( "Point(0 0)" ) );
QgsFeature ff( 0 );
ff.setGeometry( refGeom );
QgsGeometry refGeom2 = QgsGeometry::fromWkt( QStringLiteral( "Point(1 0)" ) );
QgsFeature ff2( 2 );
ff2.setGeometry( refGeom2 );
QgsFeatureList flist;
flist << ff << ff2;
rl->dataProvider()->addFeatures( flist );
QgsGeometry pointGeom = QgsGeometry::fromWkt( QStringLiteral( "Point(0.1 -0.1)" ) );
QgsGeometrySnapper snapper( rl );
QgsGeometry result = snapper.snapGeometry( pointGeom, 1 );
QCOMPARE( result.exportToWkt(), QStringLiteral( "Point (0 0)" ) );
pointGeom = QgsGeometry::fromWkt( QStringLiteral( "Point(0.6 -0.1)" ) );
result = snapper.snapGeometry( pointGeom, 1 );
QCOMPARE( result.exportToWkt(), QStringLiteral( "Point (1 0)" ) );
}
void eval_geometry_method()
{
QFETCH( QString, string );
QFETCH( void*, geomptr );
QFETCH( bool, evalError );
QFETCH( bool, needGeom );
QFETCH( void*, resultptr );
QgsGeometry* geom = ( QgsGeometry* ) geomptr;
QgsGeometry* result = ( QgsGeometry* ) resultptr;
QgsFeature f;
f.setGeometry( geom );
QgsExpression exp( string );
QCOMPARE( exp.hasParserError(), false );
QCOMPARE( exp.needsGeometry(), needGeom );
QVariant out = exp.evaluate( &f );
QCOMPARE( exp.hasEvalError(), evalError );
QCOMPARE( out.canConvert<QgsGeometry>(), true );
QgsGeometry outGeom = out.value<QgsGeometry>();
QCOMPARE( outGeom.exportToWkt(), result->exportToWkt() );
}
void QgsMapToolSelectUtils::setSelectFeatures( QgsMapCanvas* canvas,
QgsGeometry* selectGeometry,
bool doContains,
bool doDifference,
bool singleSelect )
{
if ( selectGeometry->type() != QGis::Polygon )
{
return;
}
QgsVectorLayer* vlayer = QgsMapToolSelectUtils::getCurrentVectorLayer( canvas );
if ( vlayer == nullptr )
{
return;
}
// toLayerCoordinates will throw an exception for any 'invalid' points in
// the rubber band.
// For example, if you project a world map onto a globe using EPSG 2163
// and then click somewhere off the globe, an exception will be thrown.
//QgsGeometry selectGeomTrans( *selectGeometry );
//if ( canvas->mapSettings().hasCrsTransformEnabled() )
//{
// try
// {
// QgsCoordinateTransform ct( canvas->mapSettings().destinationCrs(), vlayer->crs() );
// selectGeomTrans.transform( ct );
// }
// catch ( QgsCsException &cse )
// {
// Q_UNUSED( cse );
// // catch exception for 'invalid' point and leave existing selection unchanged
// QgsLogger::warning( "Caught CRS exception " + QString( __FILE__ ) + ": " + QString::number( __LINE__ ) );
// LOG_INFO( "CRS Exception\nSelection extends beyond layer's coordinate system" );
// return;
// }
//}
QgsGeometry selectGeomTrans;
try{
selectGeomTrans = toLayerCoordinates( canvas, selectGeometry, vlayer );
}
catch ( QgsCsException & )
{
return;
}
QApplication::setOverrideCursor( Qt::WaitCursor );
QgsDebugMsg( "Selection layer: " + vlayer->name() );
QgsDebugMsg( "Selection polygon: " + selectGeomTrans.exportToWkt() );
QgsDebugMsg( "doContains: " + QString( doContains ? "T" : "F" ) );
QgsDebugMsg( "doDifference: " + QString( doDifference ? "T" : "F" ) );
QgsRenderContext context = QgsRenderContext::fromMapSettings( canvas->mapSettings() );
QgsFeatureRendererV2* r = vlayer->rendererV2();
if ( r )
r->startRender( context, vlayer->pendingFields() );
QgsFeatureRequest request;
request.setFilterRect( selectGeomTrans.boundingBox() );
request.setFlags( QgsFeatureRequest::ExactIntersect );
if ( r )
request.setSubsetOfAttributes( r->usedAttributes(), vlayer->pendingFields() );
else
request.setSubsetOfAttributes( QgsAttributeList() );
QgsFeatureIterator fit = vlayer->getFeatures( request );
QgsFeatureIds newSelectedFeatures;
QgsFeature f;
QgsFeatureId closestFeatureId = 0;
bool foundSingleFeature = false;
double closestFeatureDist = std::numeric_limits<double>::max();
while ( fit.nextFeature( f ) )
{
#if (VERSION_INT >= 21601)
context.expressionContext().setFeature( f ); //taken from QGIS 2.16.1
// make sure to only use features that are visible
if ( r && !r->willRenderFeature( f, context ) )
#else
if ( r && !r->willRenderFeature( f ) )
#endif
continue;
QgsGeometry* g = f.geometry();
if ( doContains )
{
if ( !selectGeomTrans.contains( g ) )
continue;
}
else
{
if ( !selectGeomTrans.intersects( g ) )
continue;
}
if ( singleSelect )
{
foundSingleFeature = true;
double distance = g->distance( selectGeomTrans );
if ( distance <= closestFeatureDist )
{
closestFeatureDist = distance;
closestFeatureId = f.id();
}
}
else
{
newSelectedFeatures.insert( f.id() );
}
}
if ( singleSelect && foundSingleFeature )
{
newSelectedFeatures.insert( closestFeatureId );
}
if ( r )
r->stopRender( context );
QgsDebugMsg( "Number of new selected features: " + QString::number( newSelectedFeatures.size() ) );
if ( doDifference )
{
QgsFeatureIds layerSelectedFeatures = vlayer->selectedFeaturesIds();
QgsFeatureIds selectedFeatures;
QgsFeatureIds deselectedFeatures;
QgsFeatureIds::const_iterator i = newSelectedFeatures.constEnd();
while ( i != newSelectedFeatures.constBegin() )
{
--i;
if ( layerSelectedFeatures.contains( *i ) )
{
deselectedFeatures.insert( *i );
}
else
{
selectedFeatures.insert( *i );
}
}
vlayer->modifySelection( selectedFeatures, deselectedFeatures );
}
else
{
SelectFeatures( vlayer, newSelectedFeatures ); // vlayer->setSelectedFeatures( newSelectedFeatures );
}
QApplication::restoreOverrideCursor();
}
