Examples of org.opengis.referencing.operation.MathTransform.inverse()

Package org.opengis.referencing.operation

Class org.opengis.referencing.operation.MathTransform

Examples of org.opengis.referencing.operation.MathTransform.inverse()

org.opengis.referencing.operation.MathTransform.inverse()
Creates the inverse transform of this object. The target of the inverse transform is the source of the original. The source of the inverse transform is the target of the original. Using the original transform followed by the inverse's transform will result in an identity map on the source coordinate space, when allowances for error are made. This method may fail if the transform is not one to one. However, all cartographic projections should succeed. @return The inverse transform. @throws NoninvertibleTransformException if the transform can't be inversed.

        
        map.addPoint(x,y, map.getGeoms().get(0).getShell());
        double [] tmp=new double[]{ x+.5,y+.5 };
        double [] expected=new double[2];
        translateInstance.inverseTransform(tmp, 0,tmp,0,1);
        t.inverse().transform(tmp, 0, expected,0,1);
        assertEquals(new Coordinate(expected[0], expected[1]),map.getCoords(x,y).get(0));
    }
    
    @Test
    public void testAddOverlappingVertex() throws Exception {

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            }


            final MathTransform modelToRaster;
            try {
                final MathTransform rasterToModel = getRasterToModel();
                modelToRaster = rasterToModel.inverse();
            } catch (NoninvertibleTransformException e) {
                throw new IllegalStateException("Can't create transform from model to raster");
            }


            int minx = Integer.MAX_VALUE;

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            Long rasterId = dimensionChoice.getRasterId();
            int pyramidLevel = dimensionChoice.getPyramidLevel();
            int rasterIndex = rasterInfo.getRasterIndex(rasterId);
            rasterToModel = rasterInfo.getRasterToModel(rasterIndex, pyramidLevel);
            try {
                modelToRaster = rasterToModel.inverse();
            } catch (NoninvertibleTransformException e) {
                throw new RuntimeException(e);
            }
        }

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            if(crs != null) {
                Set<RenderingHints.Key> fsHints = source.getSupportedHints();
                
                SingleCRS crs2D = crs == null ? null : CRS.getHorizontalCRS(crs);
                MathTransform mt = buildFullTransform(crs2D, mapCRS, worldToScreenTransform);
                double[] spans = Decimator.computeGeneralizationDistances(mt.inverse(), screenSize, generalizationDistance);
                double distance = spans[0] < spans[1] ? spans[0] : spans[1];
                for (LiteFeatureTypeStyle fts : styles) {
                    if(fts.screenMap != null) {
                        fts.screenMap.setTransform(mt);
                        fts.screenMap.setSpans(spans[0], spans[1]);

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            t2.transform(point, 0, tp2, 0, 1);
            assertEquals(tp1[0], tp2[0], EPS);
            assertEquals(tp1[1], tp2[1], EPS);
            // check inverse as well
            t1.inverse().transform(tp1, 0, tp1, 0, 1);
            t2.inverse().transform(tp2, 0, tp2, 0, 1);
            assertEquals(point[0], tp2[0], EPS);
            assertEquals(point[1], tp2[1], EPS);
        }
        
    }

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        // no cutting expected
        assertEquals(g, preProcessed);
        // transform and post process
        MathTransform mt = CRS.findMathTransform(WGS84, MERCATOR, true);
        Geometry transformed = JTS.transform(g, mt);
        Geometry postProcessed = handler.postProcess(mt.inverse(), transformed);
        Envelope env = postProcessed.getEnvelopeInternal();
        // check the geometry is in the same area as the rendering envelope
        assertEquals(mercatorEnvelope.getMinX(), env.getMinX(), EPS);
        assertEquals(mercatorEnvelope.getMaxX(), env.getMaxX(), EPS);
    }

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        // no cutting expected
        assertEquals(original, preProcessed);
        // post process
        MathTransform mt = CRS.findMathTransform(FIJI, WGS84);
        Geometry transformed = JTS.transform(g, mt);
        Geometry postProcessed = handler.postProcess(mt.inverse(), transformed);
        // check the geometry is in the same area as the rendering envelope
        assertTrue(world.contains(postProcessed.getEnvelopeInternal()));
    }
    
    @Test

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    }


    
    // final check, is this invertible at all?
    try{
      xform.inverse();
    }catch(Exception e){
      if(LOGGER.isLoggable(Level.FINE)){
        LOGGER.log(Level.FINE,"Invalid model transformation found!\n"+e.getLocalizedMessage(),e);
      }

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        assertEquals(618336.748, dst[0], 0.001);
        assertEquals(3067774.210, dst[1], 0.001);
        
        // and back
        mt.inverse().transform(dst, 0, src, 0, 1);
        assertEquals(20000, src[0], 0.001);
        assertEquals(10000, src[1], 0.001);
    }
    
    public void testOperationSourceTarget() throws Exception{

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        assertEquals(expected[0], forward[0], 1e-1);
        assertEquals(expected[1], forward[1], 1e-1);
        
        // check inverse transform
        final double[] inverse = new double[2];
        transform.inverse().transform(expected, 0, inverse, 0, 1);
        assertEquals(point[0], inverse[0], 1e-4);
        assertEquals(inverse[1], inverse[1], 1e-4);
    }
    
    /**

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