Examples with InterpolationBilinear javax.media.jai.InterpolationBilinear used on opensource projects

Example 1 with InterpolationBilinear

use of javax.media.jai.InterpolationBilinear in project OpenTripPlanner by opentripplanner.

the class ElevationModule method buildGraph.

@Override
public void buildGraph(Graph graph, HashMap<Class<?>, Object> extra) {
    gridCoverageFactory.setGraph(graph);
    Coverage gridCov = gridCoverageFactory.getGridCoverage();
    // If gridCov is a GridCoverage2D, apply a bilinear interpolator. Otherwise, just use the
    // coverage as is (note: UnifiedGridCoverages created by NEDGridCoverageFactoryImpl handle
    // interpolation internally)
    coverage = (gridCov instanceof GridCoverage2D) ? Interpolator2D.create((GridCoverage2D) gridCov, new InterpolationBilinear()) : gridCov;
    log.info("Setting street elevation profiles from digital elevation model...");
    List<StreetEdge> edgesWithElevation = new ArrayList<StreetEdge>();
    int nProcessed = 0;
    int nTotal = graph.countEdges();
    for (Vertex gv : graph.getVertices()) {
        for (Edge ee : gv.getOutgoing()) {
            if (ee instanceof StreetWithElevationEdge) {
                StreetWithElevationEdge edgeWithElevation = (StreetWithElevationEdge) ee;
                processEdge(graph, edgeWithElevation);
                if (edgeWithElevation.getElevationProfile() != null && !edgeWithElevation.isElevationFlattened()) {
                    edgesWithElevation.add(edgeWithElevation);
                }
                nProcessed += 1;
                if (nProcessed % 50000 == 0) {
                    log.info("set elevation on {}/{} edges", nProcessed, nTotal);
                    double failurePercentage = nPointsOutsideDEM / nPointsEvaluated * 100;
                    if (failurePercentage > 50) {
                        log.warn("Fetching elevation failed at {}/{} points ({}%)", nPointsOutsideDEM, nPointsEvaluated, failurePercentage);
                        log.warn("Elevation is missing at a large number of points. DEM may be for the wrong region. " + "If it is unprojected, perhaps the axes are not in (longitude, latitude) order.");
                    }
                }
            }
        }
    }
    @SuppressWarnings("unchecked") HashMap<Vertex, Double> extraElevation = (HashMap<Vertex, Double>) extra.get(ElevationPoint.class);
    assignMissingElevations(graph, edgesWithElevation, extraElevation);
}

Example 2 with InterpolationBilinear

use of javax.media.jai.InterpolationBilinear in project sldeditor by robward-scisys.

the class InterpolationValues method setValue.

/*
     * (non-Javadoc)
     *
     * @see
     * com.sldeditor.rendertransformation.types.RenderTransformValueInterface#setValue(java.lang.
     * Object)
     */
@Override
public void setValue(Object aValue) {
    this.value = null;
    this.expression = null;
    if (aValue instanceof LiteralExpressionImpl) {
        String displayName = ((Expression) aValue).toString();
        if (InterpolationNearest.class.getSimpleName().compareTo(displayName) == 0) {
            value = new InterpolationNearest();
        } else if (InterpolationBilinear.class.getSimpleName().compareTo(displayName) == 0) {
            value = new InterpolationBilinear();
        } else if (displayName.startsWith(InterpolationBicubic2.class.getSimpleName())) {
            sampleBits = extractSampleBits(INTERPOLATION_BICUBIC2_PATTERN_MATCH, displayName);
            value = new InterpolationBicubic2(sampleBits);
        } else if (displayName.startsWith(InterpolationBicubic.class.getSimpleName())) {
            sampleBits = extractSampleBits(INTERPOLATION_BICUBIC_PATTERN_MATCH, displayName);
            value = new InterpolationBicubic(sampleBits);
        }
    } else if ((aValue instanceof AttributeExpressionImpl) || (aValue instanceof FunctionExpressionImpl) || (aValue instanceof MathExpressionImpl)) {
        this.expression = (Expression) aValue;
    }
}

Example 3 with InterpolationBilinear

use of javax.media.jai.InterpolationBilinear in project OpenTripPlanner by opentripplanner.

the class NEDGridCoverageFactoryImpl method getGridCoverage.

/**
 * @return a GeoTools grid coverage for the entire area of interest, lazy-creating it on the first call.
 */
public Coverage getGridCoverage() {
    if (unifiedCoverage == null) {
        loadVerticalDatum();
        tileSource.setGraph(graph);
        tileSource.setCacheDirectory(cacheDirectory);
        List<File> paths = tileSource.getNEDTiles();
        // Make one grid coverage for each NED tile, adding them all to a single UnifiedGridCoverage.
        for (File path : paths) {
            GeotiffGridCoverageFactoryImpl factory = new GeotiffGridCoverageFactoryImpl(path);
            // TODO might bicubic interpolation give better results?
            GridCoverage2D regionCoverage = Interpolator2D.create(factory.getGridCoverage(), new InterpolationBilinear());
            if (unifiedCoverage == null) {
                unifiedCoverage = new UnifiedGridCoverage("unified", regionCoverage, datums);
            } else {
                unifiedCoverage.add(regionCoverage);
            }
        }
    }
    return unifiedCoverage;
}