private void removePoint(GeoPoint oldPoint) {
// remove dependent algorithms (e.g. segments) from update sets of
// objects further up (e.g. polygon) the tree
ArrayList algoList = oldPoint.getAlgorithmList();
for (int k = 0; k < algoList.size(); k++) {
AlgoElement algo = (AlgoElement) algoList.get(k);
for (int j = 0; j < input.length; j++) input[j].removeFromUpdateSets(algo);
}
// remove old point
oldPoint.setParentAlgorithm(null);
// remove dependent segment algorithm that are part of this polygon
// to make sure we don't remove the polygon as well
for (int k = 0; k < algoList.size(); k++) {
AlgoElement algo = (AlgoElement) algoList.get(k);
// make sure we don't remove the polygon as well
if (algo instanceof AlgoJoinPointsSegment
&& ((AlgoJoinPointsSegment) algo).getPoly() == poly) {
} else {
algo.remove();
}
}
algoList.clear();
// remove point
oldPoint.doRemove();
}
/** Ensure that the pointList holds n points. */
private void updatePointsArray(int n) {
GeoPoint[] oldPoints = points;
int oldPointsLength = oldPoints == null ? 0 : oldPoints.length;
// System.out.println("update points: " + n + " old length: " + oldPointsLength);
// new points
points = new GeoPoint[n];
// reuse old points
for (int i = 0; i < oldPointsLength; i++) {
if (i < points.length) {
// reuse old point
points[i] = oldPoints[i];
} else {
removePoint(oldPoints[i]);
}
}
// create new points if needed
for (int i = oldPointsLength; i < points.length; i++) {
GeoPoint newPoint = new GeoPoint(cons);
newPoint.setCoords(0, 0, 1); // set defined
newPoint.setParentAlgorithm(this);
newPoint.setEuclidianVisible(true);
newPoint.setAuxiliaryObject(true);
points[i] = newPoint;
}
}