当前位置: 首页>>代码示例>>C++>>正文

C++ IRasterCoverage::isValid方法代码示例

本文整理汇总了C++中IRasterCoverage::isValid方法的典型用法代码示例。如果您正苦于以下问题：C++ IRasterCoverage::isValid方法的具体用法？C++ IRasterCoverage::isValid怎么用？C++ IRasterCoverage::isValid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IRasterCoverage的用法示例。


在下文中一共展示了IRasterCoverage::isValid方法的13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: resample

bool OperationHelperRaster::resample(IRasterCoverage& raster1, IRasterCoverage& raster2, ExecutionContext *ctx) {
    if ( !raster1.isValid())
        return false;

    IGeoReference commonGeoref = raster1->georeference();
    if ( ctx->_masterGeoref != sUNDEF) {
        if(!commonGeoref.prepare(ctx->_masterGeoref))
            return false;
    }
    if (raster1->georeference()!= commonGeoref ){
        Resource res;
        res.prepare();
        QString expr = QString("%3=resample(%1,%2,bicubic)").arg(raster1->source().url().toString()).arg(commonGeoref->source().url().toString()).arg(res.name());
        ExecutionContext ctxLocal;
        SymbolTable symtabLocal;
        if(!commandhandler()->execute(expr,&ctxLocal,symtabLocal))
            return false;
        QVariant var = symtabLocal.getValue(res.name());
        raster1 = var.value<IRasterCoverage>();
    }
    if ( raster2.isValid() && raster2->georeference()!= commonGeoref ){
        Resource res;
        res.prepare();
        QString expr = QString("%3=resample(%1,%2,bicubic)").arg(raster2->source().url().toString()).arg(commonGeoref->source().url().toString()).arg(res.name());
        ExecutionContext ctxLocal;
        SymbolTable symtabLocal;
        if(!commandhandler()->execute(expr,&ctxLocal,symtabLocal))
            return false;
        QVariant var = symtabLocal.getValue(res.name());
        IRasterCoverage outRaster = var.value<IRasterCoverage>();
        raster2.assign(outRaster);
    }
    return true;
}
开发者ID:VincentBeltman，项目名称:IlwisCore，代码行数:34，代码来源:operationhelpergrid.cpp

示例2: process

void OperationWorker::process(){
    try {
        Operation op(_expression);
        SymbolTable tbl;
        ExecutionContext ctx;

        if(op->execute(&ctx, tbl)){
            if ( ctx._results.size() > 0){
                for(auto resultName : ctx._results){
                    Symbol symbol = tbl.getSymbol(resultName);
                    if ( hasType(symbol._type, itNUMBER)){
                        result += symbol._var.toDouble();
                    }else if ( hasType(symbol._type, itSTRING)){
                        result += symbol._var.toString();
                    }else if ( hasType(symbol._type, (itCOVERAGE | itTABLE))){
                        if ( symbol._type == itRASTER){
                            IRasterCoverage raster = symbol._var.value<IRasterCoverage>();
                            if ( raster.isValid())
                                result = raster->source().url().toString();
                        }
                    }
                }
            }
        }else {
            qDebug() << "operation failed";
        }
        emit finished();
    }catch(const ErrorObject& err){

    }
    emit finished();
}
开发者ID:ridoo，项目名称:IlwisCore，代码行数:32，代码来源:operationworker.cpp

示例3: subdivideTasks

int OperationHelperRaster::subdivideTasks(ExecutionContext *ctx,const IRasterCoverage& raster, const BoundingBox &bnds, std::vector<BoundingBox > &boxes)
{
    if ( !raster.isValid() || raster->size().isNull() || raster->size().ysize() == 0) {
        return ERROR1(ERR_NO_INITIALIZED_1, "Grid size");
        return iUNDEF;
    }

    int cores = std::min(QThread::idealThreadCount(),(int)raster->size().ysize());
    if (raster->size().linearSize() < 10000 || ctx->_threaded == false)
        cores = 1;

    boxes.clear();
    boxes.resize(cores);
    BoundingBox bounds = bnds;
    if ( bounds.isNull())
        bounds = BoundingBox(raster->size());
    int left = 0; //bounds.min_corner().x;
    int right = bounds.size().xsize();
    int top = bounds.size().ysize();
    int step = bounds.size().ysize() / cores;
    int currentY = 0;

    for(int i=0 ; i < cores; ++i){
        BoundingBox smallBox(Pixel(left, currentY,0), Pixel(right - 1, std::min(top - 1,currentY + step),bounds.zlength()) );
        boxes[i] = smallBox;
        currentY = currentY + step  ;
    }
    return cores;
}
开发者ID:VincentBeltman，项目名称:IlwisCore，代码行数:29，代码来源:operationhelpergrid.cpp

示例4: changeCoords

void CrosssectionTool::changeCoords(int index, int c, int r, bool useScreenPixels)
{
    if (index >= 0 && index < _pins.size()) {
        if (_panelCoverage->ilwisType() == itRASTER) {
            IRasterCoverage raster = _panelCoverage.as<RasterCoverage>();
            if (raster.isValid()) {
                Coordinate crd;
                if (useScreenPixels) {
                    crd = vpmodel()->layer()->layerManager()->rootLayer()->screenGrf()->pixel2Coord(Pixel(c, r));
                    Pixel pix = raster->georeference()->coord2Pixel(crd);
                    c = pix.x;
                    r = pix.y;
                }
                crd = raster->georeference()->pixel2Coord(Pixel(c, r));
                _pins[index]->x(crd.x);
                _pins[index]->y(crd.y);
                _pins[index]->column(c);
                _pins[index]->row(r);
                _pins[index]->update();
                vpmodel()->layer()->layerManager()->updatePostDrawers();
                changePinData(index, crd); 
            }
        }
        
    }
}
开发者ID:MartinSchouwenburg，项目名称:IlwisTest，代码行数:26，代码来源:crosssection.cpp

示例5: 

geos::geom::Point *SelectionBase::pixel2point(const Pixel& pix){
    IRasterCoverage raster = _inputObj.as<RasterCoverage>();
    if ( raster.isValid())    {
        Coordinate crd = raster->georeference()->pixel2Coord(pix);
        return _geomfactory->createPoint(crd);
    }
    return 0;
}
开发者ID:52North，项目名称:IlwisCore，代码行数:8，代码来源:selectionbase.cpp

示例6: ErrorObject

PinDataSource::PinDataSource(quint64 objid, QObject *parent) : QObject(parent) {
    IRasterCoverage raster;
    raster.prepare(objid);
    if (!raster.isValid())
        return;
    _objid = objid;
	_stackDomain = raster->stackDefinition().domain();
    CrosssectionTool *tool = static_cast<CrosssectionTool *>(parent);
    IRasterCoverage rasterPanel = tool->coverage().as<RasterCoverage>();
    if (!rasterPanel.isValid()) {
        throw ErrorObject(TR("Crossection tool only works for raster coverages"));
    }
    if (!raster->georeference()->isCompatible(rasterPanel->georeference())) {
        throw ErrorObject(TR("Rasters must have compatible georeferences"));
    }
	setStackDomain( QString::number(_stackDomain->id()));
}
开发者ID:MartinSchouwenburg，项目名称:IlwisTest，代码行数:17，代码来源:crosssection.cpp

示例7: maxC

int CrosssectionTool::maxC() const {
    if (_panelCoverage.isValid() && _panelCoverage->ilwisType() == itRASTER) {
        IRasterCoverage raster = _panelCoverage.as<RasterCoverage>();
        if (raster.isValid()) {
            return raster->georeference()->size().xsize();
        }
    }
    return 0;
}
开发者ID:MartinSchouwenburg，项目名称:IlwisTest，代码行数:9，代码来源:crosssection.cpp

示例8: initialize

BoundingBox OperationHelperRaster::initialize(const IRasterCoverage &inputRaster, IRasterCoverage &outputRaster, quint64 what)
{
    Resource resource(itRASTER);
    Size<> sz = inputRaster->size();
    BoundingBox box(sz);

    if ( what & itRASTERSIZE) {
        resource.addProperty("size", IVARIANT(sz.toString()));
    }
    if ( what & itENVELOPE) {
        if ( box.isNull() || !box.isValid()) {
            sz = inputRaster->size();
            box  = BoundingBox(sz);
        }
        Envelope bounds = inputRaster->georeference()->pixel2Coord(box);
        resource.addProperty("envelope", IVARIANT(bounds.toString()));
    }
    if ( what & itCOORDSYSTEM) {
        resource.addProperty("coordinatesystem", IVARIANT(inputRaster->coordinateSystem()->id()));
    }

    if ( what & itGEOREF) {
        if ( box.isNull() || !box.isValid()) {
            sz = inputRaster->size();
            box  = BoundingBox(sz);
        }
        if ( sz.xsize() == box.xlength() && sz.ysize() == box.ylength())
            resource.addProperty("georeference", IVARIANT(inputRaster->georeference()->id()));
    }
    if ( what & itDOMAIN) {
        resource.addProperty("domain", IVARIANT(inputRaster->datadef().domain<>()->id()));
    }
    resource.prepare();

    outputRaster.prepare(resource);
    if ( what & itTABLE) {
        if ( inputRaster->attributeTable().isValid())    {
            if ( inputRaster->datadef().domain<>() == outputRaster->datadef().domain<>()) {
                if ( outputRaster.isValid())
                    outputRaster->setAttributes(inputRaster->attributeTable());
            }
        }
    }
    if ( what & itDOMAIN){
        for(quint32 i = 0; i < outputRaster->size().zsize(); ++i){
            QString index = outputRaster->stackDefinition().index(i);
            outputRaster->setBandDefinition(index,DataDefinition(outputRaster->datadef().domain()));
        }
    }


    return box;
}
开发者ID:MartinSchouwenburg，项目名称:IlwisTest，代码行数:53，代码来源:operationhelpergrid.cpp

示例9: screenPixel

QVariantMap MouseGotoPixelEditor::screenPixel(int column, int row) const {
	QVariantMap mp;
	IRasterCoverage raster = static_cast<CoverageLayerModel *>(vpmodel()->layer())->coverage().as<RasterCoverage>();
	if (raster.isValid()) {
		auto crd = raster->georeference()->pixel2Coord(Pixel(column, row));
		auto pix = vpmodel()->layer()->layerManager()->rootLayer()->screenGrf()->coord2Pixel(crd);
		mp["x"] = pix.x;
		mp["y"] = pix.y;
		
	}
	return mp;
}
开发者ID:MartinSchouwenburg，项目名称:IlwisTest，代码行数:12，代码来源:mousegotopixeleditor.cpp

示例10: resample

IRasterCoverage OperationHelperRaster::resample(const IRasterCoverage& sourceRaster, const IGeoReference& targetGrf) {
    if (!sourceRaster.isValid() || !targetGrf.isValid())
        return IRasterCoverage();

        Resource res;
        res.prepare();
        QString expr = QString("%3=resample(%1,%2,nearestneighbour)").arg(sourceRaster->resource().url().toString()).arg(targetGrf->resource().url().toString()).arg(res.name());
        ExecutionContext ctxLocal;
        SymbolTable symtabLocal;
        if (!commandhandler()->execute(expr, &ctxLocal, symtabLocal))
            return false;
        QVariant var = symtabLocal.getValue(res.name());
        return var.value<IRasterCoverage>();
}
开发者ID:MartinSchouwenburg，项目名称:IlwisTest，代码行数:14，代码来源:operationhelpergrid.cpp

示例11: changePixel

void CrosssectionTool::changePixel(int index, double x, double y)
{
    if (index >= 0 && index < _pins.size()) {
        if (_panelCoverage->ilwisType() == itRASTER) {
            IRasterCoverage raster = _panelCoverage.as<RasterCoverage>();
            if (raster.isValid()) {
                Pixel pix = raster->georeference()->coord2Pixel(Coordinate(x, y));
                _pins[index]->x(x) ;
                _pins[index]->y(y);
                _pins[index]->column(pix.x);
                _pins[index]->row(pix.y);
                _pins[index]->update();
                vpmodel()->layer()->layerManager()->updatePostDrawers();
                changePinData(index, Coordinate(x,y)); 
            }
        }
    }
}
开发者ID:MartinSchouwenburg，项目名称:IlwisTest，代码行数:18，代码来源:crosssection.cpp

示例12: setActiveVisualAttribute

void RasterLayerDrawer::setActiveVisualAttribute(const QString &attr)
{
    IRasterCoverage raster = coverage().as<RasterCoverage>();
    if ( attr == PIXELVALUE){
        LayerDrawer::setActiveVisualAttribute(attr);
    }
    else if ( raster.isValid() ) {
        if(raster->hasAttributes()) {
            if ( raster->attributeTable()->columnIndex(attr) != iUNDEF){

                IRepresentation newrpr = Representation::defaultRepresentation(raster->attributeTable()->columndefinition(attr).datadef().domain());
                if ( newrpr.isValid()){
                    LayerDrawer::setActiveVisualAttribute(attr);
                }
            }
        }
    }
}
开发者ID:ridoo，项目名称:IlwisCore，代码行数:18，代码来源:rasterlayerdrawer.cpp

示例13: coverage

void RasterLayerDrawer::coverage(const ICoverage &cov)
{
    LayerDrawer::coverage(cov);
    setActiveVisualAttribute(PIXELVALUE);

    IRasterCoverage raster = cov.as<RasterCoverage>();
    if (!raster.isValid())
        return;
    // fot the moment test only single band value maps with no attribute table; will extend when this works
    IlwisTypes attrType = raster->datadef().domain()->valueType();
    VisualAttribute attr(raster->datadef().domain());
    if ( hasType(attrType, itNUMBER)){
        auto numrange = raster->datadef().range<NumericRange>();
        attr.actualRange(NumericRange(numrange->min(), numrange->max(), numrange->resolution()));
        visualProperty(PIXELVALUE, attr);
    } else if ( hasType(attrType, itCONTINUOUSCOLOR)){
         visualProperty(PIXELVALUE, attr);

    }else if ( hasType(attrType, itPALETTECOLOR)){
        auto colorrange = raster->datadef().range<ColorPalette>();

   }
}
开发者ID:ridoo，项目名称:IlwisCore，代码行数:23，代码来源:rasterlayerdrawer.cpp


注：本文中的IRasterCoverage::isValid方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。