Ejemplo n.º 1
0
  /**
   * Does the buffer for the source geomety
   *
   * @param sourceGeometry
   * @param width
   * @param sourceUnits
   * @param targetUnits
   * @param quadrantSegments
   * @param monitor
   * @return
   * @throws InterruptedException
   */
  private Geometry makeBufferGeometry(
      final Geometry sourceGeometry,
      final double width,
      final Unit sourceUnits,
      final Unit targetUnits,
      final int quadrantSegments,
      final IProgressMonitor monitor)
      throws InterruptedException {

    double bufferWidth = getBufferWidth(width, sourceUnits, targetUnits);
    BufferOp bufOp = new BufferOp(sourceGeometry);
    bufOp.setQuadrantSegments(quadrantSegments);
    Geometry bufferedGeometry =
        bufOp.getResultGeometry(bufferWidth, new JTSProgressMonitor(monitor));

    return bufferedGeometry;
  }
  private Geometry createBuffer(
      List<Geometry> lineStrings, double bufferSize, boolean excludeTermini) {
    BufferParameters bufferParameters = new BufferParameters();

    if (excludeTermini) {
      bufferParameters.setEndCapStyle(BufferParameters.CAP_FLAT);
    } else {
      bufferParameters.setEndCapStyle(BufferParameters.CAP_ROUND);
    }

    Geometry union = null;

    for (Geometry lineString : lineStrings) {
      Geometry buffer = BufferOp.bufferOp(lineString, bufferSize, bufferParameters);
      if (union == null) {
        union = buffer;
      } else {
        union = union.union(buffer);
      }
    }

    return union;
  }