Summary Class Reference

Inheritance diagram for Summary:

Collaboration diagram for Summary:

Public Member Functions
String	getURI ()
String	attribute (GridCoverage raster)
Value	evaluate (ValueFactory valueFactory, Value... args) throws ValueExprEvaluationException

Member Function Documentation

attribute()

String attribute

(

GridCoverage

raster

)

Reimplemented from RasterAttributeStringFunction.

                                                     {
                StringBuilder builder = new StringBuilder();
                RenderedImage rendered;
                                rendered = raster.render(null);
        builder.append("Raster of " + rendered.getWidth() + "x" + rendered.getHeight() +"\n MemSize: "+raster.render(null).getData().getDataBuffer().getSize()+ 
                        "\nMINX/Y: ["+rendered.getMinX()+","+rendered.getMinY()+"] pixels has " 
                        + raster.getSampleDimensions().size() + " bands\n and extent of " +raster.getGridGeometry().getEnvelope().toString()
                        );//+"\n and grid geometry of "+ raster.getGridGeometry() + System.lineSeparator());
        builder.append("SampleModel: "+rendered.getSampleModel()+"\n");
        builder.append("PropertyNames: "+rendered.getPropertyNames()+"\n");
        builder.append("Tiles: "+rendered.getNumXTiles()+"/"+rendered.getNumYTiles()+"["+rendered.getTileWidth()+"/"+rendered.getTileHeight()+"] Offset: ["+rendered.getTileGridXOffset()+"/"+rendered.getTileGridYOffset()+"]\n");
        builder.append("Dimensions: "+raster.getGridGeometry().getDimension()+"\n");
        builder.append("DataElements: "+rendered.getData().getNumDataElements()+"\n");
        builder.append("DataType: "+rendered.getData().getDataBuffer().getDataType()+"\n");
        builder.append("ColorModel: "+rendered.getColorModel()+"\n");
                GridGeometry gridGeometry2D = raster.getGridGeometry();
        AffineTransform gridToWorld = (AffineTransform) gridGeometry2D.getGridToCRS(PixelInCell.CELL_CENTER);
        builder.append("Shear: ["+gridToWorld.getShearX()+"/"+gridToWorld.getShearY()+"] Scale: ["+gridToWorld.getScaleX()+"/"+gridToWorld.getScaleY()+"]\n");
        builder.append("GridToWorld: ["+gridToWorld. getShearX()+"/"+gridToWorld.getShearY()+"] Scale: ["+gridToWorld.getScaleX()+"/"+gridToWorld.getScaleY()+"]\n");
        builder.append("PixelData: \n");
        for(int k=0;k<raster.getSampleDimensions().size();k++) {
                builder.append("Band "+k+"\n");
                for(int i=0;i<rendered.getSampleModel().getWidth();i++) {
                        builder.append("| ");
                        for(int j=0;j<rendered.getSampleModel().getHeight();j++) {
                                builder.append(rendered.getData().getSample(i, j, k)+" | ");
                        }
                        builder.append("\n");
                }
        }
        builder.append("CRS: "+raster.getGridGeometry().getCoordinateReferenceSystem().getName()+"\n");
        for (int i = 0; i < raster.getSampleDimensions().size(); i++) {
            builder.append("band " + i + " of pixtype " + raster.getSampleDimensions().get(i).getMeasurementRange() + " is in-db with NODATA value of " + raster.getSampleDimensions().get(i).getNoDataValues() + System.lineSeparator());
        }
        return builder.toString();
        }

evaluate()

Value evaluate ( ValueFactory  valueFactory, Value...  args  ) throws ValueExprEvaluationException

inherited

                                                                                                            {
                if (args.length != 1) {
                        throw new ValueExprEvaluationException(getURI() + " requires exactly 1 arguments, got " + args.length);
                }
                System.out.println(((Literal)args[0]).getDatatype().toString());
                System.out.println(LiteralRegistry.getLiteral(((Literal)args[0]).getDatatype().toString()));
                LiteralType l=LiteralRegistry.getLiteral(((Literal)args[0]).getDatatype().toString());
                System.out.println(l);
                if(l instanceof RasterLiteral) {
                        GridCoverage geom=((RasterLiteral)l).read(args[0].stringValue());
                        //System.out.println("Extracted GridCoverage: "+geom);
                        String result = attribute(geom);
                        return valueFactory.createLiteral(result);
                }
                return null;
        }

References RasterAttributeStringFunction.attribute(), and LiteralRegistry.getLiteral().

Referenced by SampleRasters.displayRasterSummary().

getURI()

String getURI

(

)

                               {
                return POSTGIS.st_summary.stringValue();
        }

References POSTGIS.st_summary.