Examples with Curve org.opengis.geometry.primitive.Curve used on opensource projects

Example 6 with Curve

use of org.opengis.geometry.primitive.Curve in project geotoolkit by Geomatys.

the class AbstractGeometryTest method createSurface.

/**
 * Creates a simple polygon with no holes
 * @param points points defining the polygon (surface)
 * @return the surface created out of the points
 */
protected Surface createSurface(final DirectPosition[] points) {
    Curve curve = createCurve(points);
    SurfaceBoundary surfaceBoundary = createSurfaceBoundary(curve);
    Surface surface = PRIMITIVE_FACTORY.createSurface(surfaceBoundary);
    return surface;
}

Example 7 with Curve

use of org.opengis.geometry.primitive.Curve in project geotoolkit by Geomatys.

the class GeometryParser method readPolygonText.

/**
 * Creates a <code>SurfaceBoundary</code> using the next token in the stream.
 *
 * @param tokenizer tokenizer over a stream of text in Well-known Text
 *                  format. The next tokens must form a &lt;Polygon Text&gt;.
 * @return a <code>Surface</code> specified by the vertices in the stream
 * @throws ParseException if the coordinates used to create the <code>Polygon</code>
 *                        shell and holes do not form closed linestrings, or if an unexpected
 *                        token was encountered.
 * @throws IOException    if an I/O error occurs
 */
private Surface readPolygonText(final StreamTokenizer tokenizer) throws IOException, ParseException {
    String nextToken = getNextEmptyOrOpener(tokenizer);
    if (nextToken.equals(EMPTY)) {
        return null;
    }
    Curve curve = readLinearRingText(tokenizer);
    List<OrientableCurve> curveList = Collections.singletonList((OrientableCurve) curve);
    Ring shell = primitiveFactory.createRing(curveList);
    // Ring shell = readLinearRingText(tokenizer);
    List<Ring> holes = new ArrayList<Ring>();
    nextToken = getNextCloserOrComma(tokenizer);
    while (nextToken.equals(COMMA)) {
        Curve holecurve = readLinearRingText(tokenizer);
        List<OrientableCurve> holeList = Collections.singletonList((OrientableCurve) holecurve);
        Ring hole = primitiveFactory.createRing(holeList);
        // Ring hole = readLinearRingText(tokenizer);
        holes.add(hole);
        nextToken = getNextCloserOrComma(tokenizer);
    }
    SurfaceBoundary sb = primitiveFactory.createSurfaceBoundary(shell, holes);
    return primitiveFactory.createSurface(sb);
}

Example 8 with Curve

use of org.opengis.geometry.primitive.Curve in project geotoolkit by Geomatys.

the class GeometryUtils method getLineCharSequences.

/**
 * Recursively populates the specified List with LineCharSequences corresponding
 * to the primitive elements of the specified CompositeCurve.
 * Returns null if any element of the CompositeCurve cannot be converted
 * to a LineString.
 * @param cc The CompositeCurve of interest
 * @param lsList The ArrayList to be populated
 * @return The populated List, or null if not valid
 */
private static ArrayList getLineCharSequences(final CompositeCurve cc, final ArrayList lsList) {
    // Cast below can be removed when Types will be allowed to abandon Java 1.4 support.
    List elements = (List) cc.getGenerators();
    boolean valid = true;
    if (!elements.isEmpty()) {
        Iterator it = elements.iterator();
        LineString ls = null;
        while (it.hasNext() && valid) {
            Object element = it.next();
            if (element instanceof CompositeCurve) {
                valid = getLineCharSequences((CompositeCurve) element, lsList) != null;
            } else if (element instanceof Curve) {
                // PENDING(NL):  When we have arc geometries implemented,
                // make provision to pass in real parameters for spacing and offset.
                // What we have below essentially just returns start and end points
                // if it's not a LineString
                ls = ((Curve) element).asLineString(Double.MAX_VALUE, Double.MAX_VALUE);
                if (ls != null) {
                    lsList.add(ls);
                } else {
                    valid = false;
                }
            } else {
                valid = false;
            }
        }
    }
    if (valid) {
        return null;
    }
    return lsList;
}

Example 9 with Curve

use of org.opengis.geometry.primitive.Curve in project geotoolkit by Geomatys.

the class GeometryUtils method getDirectPositions.

public static DirectPosition[] getDirectPositions(final Ring ring) {
    final List directPositionList = new ArrayList();
    // Cast below can be removed when Types will be allowed to abandon Java 1.4 support.
    final List /*<Curve>*/
    generators = (List) ring.getGenerators();
    for (int i = 0; i < generators.size(); i++) {
        final Curve curve = (Curve) generators.get(i);
        final List /*<CurveSegments>*/
        segments = curve.getSegments();
        for (int j = 0; j < segments.size(); j++) {
            final CurveSegment curveSegment = (CurveSegment) segments.get(j);
            if (curveSegment instanceof LineString) {
                final LineString lineString = (LineString) curveSegment;
                final DirectPosition[] positions = getDirectPositions(lineString);
                directPositionList.addAll(Arrays.asList(positions));
            /*final List<Position> positions = lineString.getControlPoints().positions();
                    for (int k = 0; k < positions.size(); k++) {
                        Position position = (Position) positions.get(k);
                        directPositionList.add(position.getPosition());
                    }*/
            }
        }
    }
    if (directPositionList.size() > 0) {
        return (DirectPosition[]) directPositionList.toArray(new DirectPosition[directPositionList.size()]);
    }
    return new DirectPosition[0];
}

Example 10 with Curve

use of org.opengis.geometry.primitive.Curve in project geotoolkit by Geomatys.

the class JTSUtils method linearRingToRing.

public static Ring linearRingToRing(final org.locationtech.jts.geom.LineString jtsLinearRing, final CoordinateReferenceSystem crs) {
    int numPoints = jtsLinearRing.getNumPoints();
    if (numPoints != 0 && !jtsLinearRing.getCoordinateN(0).equals(jtsLinearRing.getCoordinateN(numPoints - 1))) {
        throw new IllegalArgumentException("LineString must be a ring");
    }
    // FactoryFinder.getPrimitiveFactory(hints);
    PrimitiveFactory pf = new JTSPrimitiveFactory(crs);
    // FactoryFinder.getGeometryFactory(hints);
    GeometryFactory gf = new JTSGeometryFactory(crs);
    LineString ls = gf.createLineString(new ArrayList());
    List pointList = ls.getControlPoints();
    for (int i = 0; i < numPoints; i++) {
        pointList.add(coordinateToDirectPosition(jtsLinearRing.getCoordinateN(i), crs));
    }
    Curve curve = pf.createCurve(new ArrayList());
    // Cast below can be removed when Types will be allowed to abandon Java 1.4 support.
    ((List) curve.getSegments()).add(ls);
    Ring result = pf.createRing(new ArrayList());
    // Cast below can be removed when Types will be allowed to abandon Java 1.4 support.
    ((List) result.getGenerators()).add(curve);
    return result;
}