Examples with Point com.revolsys.geometry.model.Point used on opensource projects

Example 61 with Point

use of com.revolsys.geometry.model.Point in project com.revolsys.open by revolsys.

the class RightmostEdgeFinder method getRightmostSideOfSegment.

private int getRightmostSideOfSegment(final DirectedEdge de, final int i) {
    final Edge edge = de.getEdge();
    if (i < 0 || i + 1 >= edge.getVertexCount()) {
        return -1;
    }
    final Point p1 = edge.getPoint(i);
    final Point p2 = edge.getPoint(i + 1);
    if (p1.getY() == p2.getY()) {
        // indicates edge is parallel to x-axis
        return -1;
    }
    int pos = Position.LEFT;
    if (p1.getY() < p2.getY()) {
        pos = Position.RIGHT;
    }
    return pos;
}

Example 62 with Point

use of com.revolsys.geometry.model.Point in project com.revolsys.open by revolsys.

the class RightmostEdgeFinder method checkForRightmostCoordinate.

private void checkForRightmostCoordinate(final DirectedEdge de) {
    final Edge edge = de.getEdge();
    for (int i = 0; i < edge.getVertexCount() - 1; i++) {
        // only check vertices which are the start or end point of a
        // non-horizontal segment
        // <FIX> MD 19 Sep 03 - NO! we can test all vertices, since the rightmost
        // must have a non-horiz segment adjacent to it
        final int i1 = i;
        final Point point = edge.getPoint(i1);
        if (this.minCoord == null || point.getX() > this.minCoord.getX()) {
            this.minDe = de;
            this.minIndex = i;
            this.minCoord = point;
        }
    // }
    }
}

Example 63 with Point

use of com.revolsys.geometry.model.Point in project com.revolsys.open by revolsys.

the class BufferDistanceValidator method checkMaximumDistance.

/**
 * Checks that the furthest distance from the buffer curve to the input
 * is less than the given maximum distance.
 * This uses the Oriented Hausdorff distance metric.
 * It corresponds to finding
 * the point on the buffer curve which is furthest from <i>some</i> point on the input.
 *
 * @param input a geometry
 * @param bufCurve a geometry
 * @param maxDist the maximum distance that a buffer result can be from the input
 */
private void checkMaximumDistance(final Geometry input, final Geometry bufCurve, final double maxDist) {
    // BufferCurveMaximumDistanceFinder maxDistFinder = new
    // BufferCurveMaximumDistanceFinder(input);
    // maxDistanceFound = maxDistFinder.findDistance(bufCurve);
    final DiscreteHausdorffDistance haus = new DiscreteHausdorffDistance(bufCurve, input);
    haus.setDensifyFraction(0.25);
    this.maxDistanceFound = haus.orientedDistance();
    if (this.maxDistanceFound > maxDist) {
        this.isValid = false;
        final Point[] pts = haus.getCoordinates();
        this.errorLocation = pts[1];
        this.errorIndicator = input.getGeometryFactory().lineString(pts);
        this.errMsg = "Distance between buffer curve and input is too large " + "(" + this.maxDistanceFound + " at " + EWktWriter.lineString(pts[0], pts[1]) + ")";
    }
}

Example 64 with Point

use of com.revolsys.geometry.model.Point in project com.revolsys.open by revolsys.

the class BufferDistanceValidator method checkMinimumDistance.

/**
 * Checks that two geometries are at least a minumum distance apart.
 *
 * @param g1 a geometry
 * @param g2 a geometry
 * @param minDist the minimum distance the geometries should be separated by
 */
private void checkMinimumDistance(final Geometry g1, final Geometry g2, final double minDist) {
    final DistanceWithPoints distOp = new DistanceWithPoints(g1, g2, minDist);
    this.minDistanceFound = distOp.distance();
    if (this.minDistanceFound < minDist) {
        this.isValid = false;
        final List<Point> pts = distOp.nearestPoints();
        this.errorLocation = pts.get(1);
        this.errorIndicator = g1.getGeometryFactory().lineString(pts);
        this.errMsg = "Distance between buffer curve and input is too small " + "(" + this.minDistanceFound + " at " + EWktWriter.lineString(pts.get(0), this.errorLocation) + " )";
    }
}

Example 65 with Point

use of com.revolsys.geometry.model.Point in project com.revolsys.open by revolsys.

the class DistanceToPointFinder method computeDistance.

public static void computeDistance(final LineSegment segment, final Point pt, final PointPairDistance ptDist) {
    final Point closestPt = segment.closestPoint(pt);
    ptDist.setMinimum(closestPt, pt);
}