Try this code. When i add feature to layer it says to me that id is negative
and not depend from layer (-2, -3, -4... for first and -6,-7,-8... for
second layer), but feature iterator says that ids are positive (1, 2, 3 ..
for first layer and 1, 2, 3 ... for second layer).
Is this a bug?
What i`m doing wrong?
QgsVectorLayer *layer1 = new QgsVectorLayer("Polygon", "test1",
"memory");
QgsSingleSymbolRendererV2 *renderer1 = new
QgsSingleSymbolRendererV2(QgsSymbolV2::defaultSymbol(layer1->geometryType()));
layer1->setRendererV2(renderer1);
map->addLayer(layer1);
layer1->enableLabels(true);
QgsVectorLayer *layer2 = new QgsVectorLayer("Polygon", "test2",
"memory");
QgsSingleSymbolRendererV2 *renderer2 = new
QgsSingleSymbolRendererV2(QgsSymbolV2::defaultSymbol(layer2->geometryType()));
layer2->setRendererV2(renderer2);
map->addLayer(layer2);
layer1->startEditing();
QgsFeatureIds ids1;
for(int i = 0; i < 5; i++){
QgsFeature f;
f.setGeometry(QgsGeometry::fromRect(QgsRectangle(i * 10, i *
10, (i + 1) *
10, (i + 1) * 10)));
f.setValid(true);
layer1->addFeature(f);
ids1 << f.id();
}
layer1->commitChanges();
layer2->startEditing();
QgsFeatureIds ids2;
for(int i = -1; i > -6; i--){
QgsFeature f;
f.setGeometry(QgsGeometry::fromRect(QgsRectangle(i * 10, i *
10, (i + 1) *
10, (i + 1) * 10)));
f.setValid(true);
layer2->addFeature(f);
ids2 << f.id();
}
layer2->commitChanges();
QgsFeature f;
QgsFeatureIterator iter = layer1->getFeatures();
while(iter.nextFeature(f)){
qDebug() << "Available feature (layer1):" << f.id();
}
iter = layer2->getFeatures();
while(iter.nextFeature(f)){
qDebug() << "Available feature (layer2):" << f.id();
}
layer1->startEditing();
foreach (QgsFeatureId id, ids1) {
qDebug() << "Added feature (layer1):" << id;
}
layer1->commitChanges();
layer2->startEditing();
foreach (QgsFeatureId id, ids2) {
qDebug() << "Added feature (layer2):" << id;
}
layer2->commitChanges();
--
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