Examples of com.vividsolutions.jts.geom.Envelope.expandBy()

Class com.vividsolutions.jts.geom.Envelope

Examples of com.vividsolutions.jts.geom.Envelope.expandBy()

com.vividsolutions.jts.geom.Envelope.expandBy()
Expands this envelope by a given distance in all directions. Both positive and negative distances are supported. @param distance the distance to expand the envelope @return this envelope

     * Get all transit stops within a given distance of a coordinate
     */
    @Override
    public List<TransitStop> getNearbyTransitStops(Coordinate coordinate, double radius) {
        Envelope env = new Envelope(coordinate);
        env.expandBy(SphericalDistanceLibrary.metersToLonDegrees(radius, coordinate.y),
                SphericalDistanceLibrary.metersToDegrees(radius));
        List<TransitStop> nearby = getTransitStopForEnvelope(env);
        List<TransitStop> results = new ArrayList<TransitStop>();
        for (TransitStop v : nearby) {
            if (distanceLibrary.distance(v.getCoordinate(), coordinate) <= radius) {

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        double envelopeGrowthAmount = 0.001; // ~= 100 meters
        double radius = 0;
        CandidateEdgeBundle candidateEdges = new CandidateEdgeBundle();
        while (candidateEdges.size() == 0) {
            // expand envelope -- assumes many close searches and occasional far ones
            envelope.expandBy(envelopeGrowthAmount);
            radius += envelopeGrowthAmount;
            if (radius > MAX_DISTANCE_FROM_STREET) {
                return candidateEdges; // empty list
            }

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    public StreetVertex getIntersectionAt(Coordinate coordinate) {
        double dLon = SphericalDistanceLibrary.metersToLonDegrees(MAX_CORNER_DISTANCE_METERS,
                coordinate.y);
        double dLat = SphericalDistanceLibrary.metersToDegrees(MAX_CORNER_DISTANCE_METERS);
        Envelope envelope = new Envelope(coordinate);
        envelope.expandBy(dLon, dLat);
        List<Vertex> nearby = getVerticesForEnvelope(envelope);
        StreetVertex nearest = null;
        double bestDistanceMeter = Double.POSITIVE_INFINITY;
        for (Vertex v : nearby) {
            if (v instanceof StreetVertex) {

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        Coordinate c = new Coordinate(lon, lat);
        // query always returns a (possibly empty) list, but never null
        Envelope env = new Envelope(c);
        // find scaling factor for equirectangular projection
        double xscale = Math.cos(c.y * Math.PI / 180);
        env.expandBy(searchRadiusLat / xscale, searchRadiusLat);
        @SuppressWarnings("unchecked")
        List<Edge> edges = (List<Edge>) index.queryPedestrian(env);
        // look for edges and make a sample
        return findClosest(edges, c, xscale);
    }

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        TileRenderContext context = new TileRenderContext() {
            @Override
            public Envelope expandPixels(double marginXPixels, double marginYPixels) {
                Envelope retval = new Envelope(bbox);
                retval.expandBy(
                        marginXPixels / tileRequest.width * (bbox.getMaxX() - bbox.getMinX()),
                        marginYPixels / tileRequest.height * (bbox.getMaxY() - bbox.getMinY()));
                return retval;
            }
        };

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        TransitStop stopvJ = graph.index.stopVertexForStop.get(stopJ);
        TransitStop stopvL = graph.index.stopVertexForStop.get(stopL);
        TransitStop stopvM = graph.index.stopVertexForStop.get(stopM);
        // There are a two other stops within 100 meters of stop J.
        Envelope env = new Envelope(new Coordinate(stopJ.getLon(), stopJ.getLat()));
        env.expandBy(SphericalDistanceLibrary.metersToLonDegrees(100, stopJ.getLat()),
                SphericalDistanceLibrary.metersToDegrees(100));
        List<TransitStop> stops = graph.index.stopSpatialIndex.query(env);
        assertTrue(stops.contains(stopvJ));
        assertTrue(stops.contains(stopvL));
        assertTrue(stops.contains(stopvM));

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    }


    public void zoomToLocation(Coordinate c) {
        Envelope e = new Envelope();
        e.expandToInclude(c);
        e.expandBy(0.002);
        modelBounds = e;
        matchAspect();
        drawLevel = DRAW_ALL;
    }

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    }


    public void zoomToVertex(Vertex v) {
        Envelope e = new Envelope();
        e.expandToInclude(v.getCoordinate());
        e.expandBy(0.002);
        modelBounds = e;
        drawLevel = DRAW_ALL;
    }


    /**

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    }


    @SuppressWarnings("unchecked")
    public void mouseClicked() {
        Envelope screenEnv = new Envelope(new Coordinate(mouseX, mouseY));
        screenEnv.expandBy(4, 4);
        Envelope env = new Envelope(toModelX(screenEnv.getMinX()), toModelX(screenEnv.getMaxX()),
                toModelY(screenEnv.getMinY()), toModelY(screenEnv.getMaxY()));


        List<Vertex> nearby = (List<Vertex>) vertexIndex.query(env);
        selector.verticesSelected(nearby);

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        if (e == null && v == null)
            return;


        // make it a little bigger, especially needed for STOP_UNLINKED
        env.expandBy(0.02);


        // highlight relevant things
        this.clearHighlights();
        this.setHighlightedVertices(vertices);

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