Exemplo n.º 1
0
  // Its FShape and not FPolygon2D because FPolygon2DM returns a FPolyline
  private FShape parseMultiPolygon(ByteBuffer data) {
    // it was expected not to find polygons with different srid or
    // coordiante dimension as subelements of the multipolygon
    // PostGIS avoid this behaviour, but OGC says it is allow.

    int count = data.getInt();
    GeneralPathX gp = new GeneralPathX();

    List<Double> d3 = null;

    int nDims = 2;
    if (gHaveZ || gHaveM) nDims = 3;

    if (nDims == 3) d3 = new ArrayList<Double>();

    for (int i = 0; i < count; i++) {
      parseTypeAndSRID(data);
      int countRings = data.getInt();
      for (int j = 0; j < countRings; j++) {
        FPoint2D[] points = parsePointArray(data, gHaveZ, gHaveM);

        for (int k = 0; k < points.length; k++) {
          if (k == points.length - 1) {
            gp.closePath();
            if (nDims == 3) {
              if (gHaveZ) d3.add(((FPoint3D) points[0]).getZ());
              else if (gHaveM) d3.add(((FPoint2DM) points[0]).getM());
              else d3.add(0.0); // child does not have 3 dimensions
            }
          } else {
            // parent has 3 dimensions
            if (nDims == 3) {
              if (gHaveZ) d3.add(((FPoint3D) points[k]).getZ());
              else if (gHaveM) d3.add(((FPoint2DM) points[k]).getM());
              else d3.add(0.0); // child does not have 3 dimensions
            }
            if (k == 0) gp.moveTo(points[k].getX(), points[k].getY());
            else gp.lineTo(points[k].getX(), points[k].getY());
          }
        }
      }
    }

    if (nDims == 3) {
      double ad3[] = new double[d3.size()];
      for (int i = 0; i < d3.size(); i++) {
        ad3[i] = ((Double) d3.get(i)).doubleValue();
      }

      if (gHaveZ) return new FPolygon3D(gp, ad3);
      else return new FPolygon2DM(gp, ad3);
    }
    return new FPolygon2D(gp);
  }
Exemplo n.º 2
0
  private FShape parsePolygon(ByteBuffer data, boolean haveZ, boolean haveM) {
    GeneralPathX gp = new GeneralPathX();

    List<Double> d3 = null;

    int nDims = 2;
    if (gHaveZ || gHaveM) nDims = 3;

    if (nDims == 3) d3 = new ArrayList<Double>();

    int countRings = data.getInt();
    for (int j = 0; j < countRings; j++) {
      FPoint2D[] points = parsePointArray(data, gHaveZ, gHaveM);
      for (int k = 0; k < points.length; k++) {
        if (k == points.length - 1) {
          gp.closePath();
          if (nDims == 3) {
            if (gHaveZ) d3.add(((FPoint3D) points[0]).getZ());
            else if (gHaveM) d3.add(((FPoint2DM) points[0]).getM());
            else d3.add(0.0); // child does not have 3 dimensions
          }
        } else {
          // parent has 3 dimensions
          if (nDims == 3) {
            if (gHaveZ) d3.add(((FPoint3D) points[k]).getZ());
            else if (gHaveM) d3.add(((FPoint2DM) points[k]).getM());
            else d3.add(0.0); // child does not have 3 dimensions
          }
          if (k == 0) gp.moveTo(points[k].getX(), points[k].getY());
          else gp.lineTo(points[k].getX(), points[k].getY());
        }
      }
    }

    if (nDims == 3) {
      double ad3[] = new double[d3.size()];
      for (int i = 0; i < d3.size(); i++) {
        ad3[i] = ((Double) d3.get(i)).doubleValue();
      }

      if (gHaveZ) return new FPolygon3D(gp, ad3);
      else return new FPolygon2DM(gp, ad3);
    }
    return new FPolygon2D(gp);
  }