本文整理汇总了C++中ITable::dataLoaded方法的典型用法代码示例。如果您正苦于以下问题：C++ ITable::dataLoaded方法的具体用法？C++ ITable::dataLoaded怎么用？C++ ITable::dataLoaded使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ITable的用法示例。
在下文中一共展示了ITable::dataLoaded方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: loadData
bool GdalFeatureConnector::loadData(IlwisObject* data, const IOOptions &){
if(!GdalConnector::loadMetaData(data, IOOptions()))
return false;
bool ok = true;
FeatureCoverage *fcoverage = static_cast<FeatureCoverage *>(data);
if ( fcoverage->isValid() ) {
ITable attTable = fcoverage->attributeTable();
if (!attTable.isValid()){
ERROR2(ERR_NO_INITIALIZED_2,"attribute table",_filename.toString());
return false;
}
fcoverage->setFeatureCount(itFEATURE, iUNDEF, FeatureInfo::ALLFEATURES); // metadata already set it to correct number, creating new features will up the count agains; so reset to 0.
OGRLayerH hLayer = getLayerHandle();
if ( hLayer) {
GdalTableLoader loader;
attTable->dataLoaded(true); // new table, dont want any loading behaviour
loader.setColumnCallbacks(attTable.ptr(), hLayer);
std::vector<QVariant> record(attTable->columnCount());
OGRFeatureH hFeature = 0;
gdal()->resetReading(hLayer);
//each FEATURE
try {
while( (hFeature = gdal()->getNextFeature(hLayer)) != NULL){
loader.loadRecord(attTable.ptr(), hFeature, record);
geos::geom::Geometry * geometry = fillFeature(fcoverage, gdal()->getGeometryRef(hFeature));
if (geometry){
auto feature = fcoverage->newFeature(geometry, false);
feature->record(record);
}else{
ERROR1("GDAL error during load of binary data: no geometry detected for feature in %1", _filename.toString());
}
gdal()->destroyFeature( hFeature );
}
} catch (FeatureCreationError& ) {
gdal()->destroyFeature( hFeature );
ok = false;
}
}
//layer envelopes/extents
Envelope bbox;
OGREnvelope envelope;//might sometimes be supported as 3D now only posssible from OGRGeometry
OGRErr err = gdal()->getLayerExtent(hLayer, &envelope , TRUE);//TRUE to FORCE
if (err != OGRERR_NONE && fcoverage->featureCount() != 0){
ERROR0(QString("Couldn't load extent of a layer from %1 after binary was loaded: %2").arg(_filename.toString()).arg(gdal()->translateOGRERR(err)));
}else{
bbox = Envelope(Coordinate(envelope.MinX,envelope.MinY),Coordinate(envelope.MaxX,envelope.MaxY));
}
fcoverage->envelope(bbox);
}
gdal()->closeFile(sourceRef().toLocalFile(), data->id());
_binaryIsLoaded = ok;
return ok;
}