Examples of MCIndexSnapRounder

com.vividsolutions.jts.noding.snapround.MCIndexSnapRounder

Uses Snap Rounding to compute a rounded, fully noded arrangement from a set of {@link SegmentString}s. Implements the Snap Rounding technique described in papers by Hobby, Guibas & Marimont, and Goodrich et al. Snap Rounding assumes that all vertices lie on a uniform grid (hence the precision model of the input must be fixed precision, and all the input vertices must be rounded to that precision).

This implementation uses a monotone chains and a spatial index to speed up the intersection tests.

This implementation appears to be fully robust using an integer precision model. It will function with non-integer precision models, but the results are not 100% guaranteed to be correctly noded. @version 1.7

   */
  public static Geometry scaledNoding(Geometry geom, double scaleFactor)
  {
    List segs = createSegmentStrings(geom);
    PrecisionModel fixedPM = new PrecisionModel(scaleFactor);
    Noder noder = new ScaledNoder(new MCIndexSnapRounder(new PrecisionModel(1.0)),
        fixedPM.getScale());
    noder.computeNodes(segs);
    Collection nodedSegStrings = noder.getNodedSubstrings();
    return fromSegmentStrings(nodedSegStrings);
  }

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Examples of MCIndexSnapRounder

Examples of com.vividsolutions.jts.noding.snapround.MCIndexSnapRounder