Examples of org.geotools.referencing.operation.builder.GridToEnvelopeMapper.createTransform()

org.geotools.referencing.operation.builder.GridToEnvelopeMapper.createTransform()
Creates a math transform using the information provided by setter methods. @return The math transform. @throws IllegalStateException if the grid range or the envelope were not set.

        assertFalse(computedRasterArea.isEmpty());
        GridToEnvelopeMapper gridToEnvelopeMapper = new GridToEnvelopeMapper(
        new GridEnvelope2D(requestedRasterArea), 
        requestedBBox);
        gridToEnvelopeMapper.setPixelAnchor(PixelInCell.CELL_CORNER);
    assertEquals(computedRasterArea, CRS.transform(gridToEnvelopeMapper.createTransform().inverse(), computedBBox).toRectangle2D().getBounds());
        


        
        // g2w transform
    // all this intersecting and so on MUST not impact the requested resolutions

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        // create a math transform
        final GridToEnvelopeMapper mapper = new GridToEnvelopeMapper(
                new GridEnvelope2D(rasterArea), new ReferencedEnvelope(worldArea));
        mapper.setPixelAnchor(PixelInCell.CELL_CENTER);
        this.gridToWorldTransform = (MathTransform2D) mapper.createTransform();
    }


    /**
     * Set the range subset we are requesting.
     * <p>

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                } else
                    crs = initCRS();
    this.originalEnvelope = getBounds(crs);
    final GridToEnvelopeMapper geMapper= new  GridToEnvelopeMapper(originalGridRange,originalEnvelope);
    geMapper.setPixelAnchor(PixelInCell.CELL_CENTER);
    this.raster2Model=geMapper.createTransform();


    // /////////////////////////////////////////////////////////////////////
    //
    // Compute source Resolution
    //

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                this.coverageEnvelope = property.getEnvelope();
                this.coverageRasterArea = new GridEnvelope2D(0, 0, property.getWidth(), property.getHeight());
                this.coverageCRS = this.coverageEnvelope.getCoordinateReferenceSystem();
                GridToEnvelopeMapper geMapper = new GridToEnvelopeMapper((GridEnvelope)coverageRasterArea, (Envelope)this.coverageEnvelope);
                geMapper.setPixelAnchor(PixelInCell.CELL_CENTER);
                this.coverageGridToWorld2D = geMapper.createTransform();
                overviewsController = new OverviewsController(new RasterLayout(0,0, property.getWidth(), property.getHeight()), this.coverageGridToWorld2D);
                final OverviewLevel highestLevel= overviewsController.resolutionsLevels.get(0);
                coverageFullResolution = new double[2];
                coverageFullResolution[0] = highestLevel.resolutionX;
                coverageFullResolution[1] = highestLevel.resolutionY;

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            final GridToEnvelopeMapper ge = new GridToEnvelopeMapper(new GridEnvelope2D(mapRasterArea), mapEnvelope);
            
            readGG = new GridGeometry2D(
                    new GridEnvelope2D(bufferedTargetArea),
                    PixelInCell.CELL_CORNER,
                    ge.createTransform(),
                    mapCRS, 
                    null );
            bufferedEnvelope=new ReferencedEnvelope(readGG.getEnvelope2D());    
        }

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        mapper.setGridRange(new GridEnvelope2D(paintArea));
        mapper.setEnvelope(genvelope);
        mapper.setSwapXY(false);
        try {
            worldToScreen = mapper.createTransform().inverse();
        } catch (org.opengis.referencing.operation.NoninvertibleTransformException e) {
            throw new IllegalArgumentException(e);
        } catch (IllegalStateException e) {
            throw new IllegalArgumentException(e);
        }

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