private void updateTop(int n) {
GeoPolygon polygon = getTopFace();
GeoPointND[] p = new GeoPointND[n];
p[0] = getTopPoint();
for (int i = 0; i < n - 1; i++) p[1 + i] = getTopPoint(i + 1);
// polygon.setPoints(p,null,false); //don't create segments
polygon.modifyInputPoints(p);
polygon.setSegments(outputSegmentsTop.getOutput(new GeoSegment3D[n]));
polygon.calcArea();
}
@Override
protected void updateOutput(int newBottomPointsLength, GeoPointND[] bottomPoints) {
// current length of top points
int nOld = outputPoints.size() + getShift();
if (newBottomPointsLength > nOld) {
int length = newBottomPointsLength - nOld;
outputPoints.augmentOutputSize(length);
outputPoints.setLabels(null);
updateOutputPoints();
// new sides of the prism
int l = nOld + length;
for (int i = nOld; i < l; i++) {
polyhedron.startNewFace();
polyhedron.addPointToCurrentFace(bottomPoints[i]);
polyhedron.addPointToCurrentFace(bottomPoints[(i + 1) % l]);
polyhedron.addPointToCurrentFace(getTopPoint((i + 1) % l));
polyhedron.addPointToCurrentFace(getTopPoint(i));
polyhedron.endCurrentFace();
GeoPolygon3D polygon = polyhedron.createPolygon(i + 1); // i+1 due to top face
outputPolygonsSide.addOutput(polygon, false);
outputSegmentsSide.addOutput((GeoSegment3D) polygon.getSegments()[3], false);
outputSegmentsTop.addOutput((GeoSegment3D) polygon.getSegments()[2], false);
}
outputSegmentsSide.setLabels(null);
outputSegmentsTop.setLabels(null);
refreshOutput();
} else if (newBottomPointsLength < nOld) {
for (int i = newBottomPointsLength; i < bottomPointsLength; i++) {
outputPoints.getElement(i - getShift()).setUndefined();
}
updateOutputPoints();
// update top side
outputSegmentsTop
.getElement(newBottomPointsLength - 1)
.modifyInputPoints(getTopPoint(newBottomPointsLength - 1), getTopPoint());
GeoPolygon polygon = getTopFace();
GeoPointND[] p = new GeoPointND[newBottomPointsLength];
p[0] = getTopPoint();
for (int i = 0; i < newBottomPointsLength - 1; i++) p[1 + i] = getTopPoint(i + 1);
// polygon.setPoints(p,null,false); //don't create segments
polygon.modifyInputPoints(p);
polygon.setSegments(outputSegmentsTop.getOutput(new GeoSegment3D[newBottomPointsLength]));
polygon.calcArea();
// update last side
polygon = outputPolygonsSide.getElement(newBottomPointsLength - 1);
p = new GeoPointND[4];
p[0] = bottomPoints[newBottomPointsLength - 1];
p[1] = bottomPoints[0];
p[2] = getTopPoint();
p[3] = getTopPoint(newBottomPointsLength - 1);
polygon.setPoints(p, null, false); // don't create segments
GeoSegmentND[] s = new GeoSegmentND[4];
s[0] = getBottom().getSegments()[newBottomPointsLength];
s[1] = outputSegmentsSide.getElement(newBottomPointsLength);
s[2] = outputSegmentsTop.getElement(newBottomPointsLength);
s[3] = outputSegmentsSide.getElement(newBottomPointsLength - 1);
polygon.setSegments(s);
polygon.calcArea();
} else updateOutputPoints();
if (bottomPointsLength < newBottomPointsLength) {
// update top side
updateTop(newBottomPointsLength);
// update last sides
for (int i = bottomPointsLength; i < newBottomPointsLength; i++) updateSide(i, bottomPoints);
}
bottomPointsLength = newBottomPointsLength;
}
