public LinearRing createLinearRing(CoordinateSequence cs) {
if (cs.getCoordinate(0).equals(cs.getCoordinate(cs.size() - 1)))
return super.createLinearRing(cs);
// add a new coordinate to close the ring
CoordinateSequenceFactory csFact = getCoordinateSequenceFactory();
CoordinateSequence csNew = csFact.create(cs.size() + 1, cs.getDimension());
CoordinateSequences.copy(cs, 0, csNew, 0, cs.size());
CoordinateSequences.copyCoord(csNew, 0, csNew, csNew.size() - 1);
return super.createLinearRing(csNew);
}
/**
* Convenience method which provides standard way of copying {@link CoordinateSequence}s
*
* @param seq the sequence to copy
* @return a deep copy of the sequence
*/
protected final CoordinateSequence copy(CoordinateSequence seq) {
return CoordinateSequences.copy(seq);
}
private CoordinateSequence readCoordinateSequenceRing(int size) throws IOException {
CoordinateSequence seq = readCoordinateSequence(size);
if (isStrict) return seq;
if (CoordinateSequences.isRing(seq)) return seq;
return CoordinateSequences.ensureValidRing(csFactory, seq);
}
private CoordinateSequence readCoordinateSequenceLineString(int size) throws IOException {
CoordinateSequence seq = readCoordinateSequence(size);
if (isStrict) return seq;
if (seq.size() == 0 || seq.size() >= 2) return seq;
return CoordinateSequences.extend(csFactory, seq, 2);
}
