/**
* Ensures that the pointList holds n points.
*
* @param n
*/
private void updateOutput(int n) {
int nOld = outputPoints.size() + 2;
// App.error("nOld="+nOld+", n="+n);
if (nOld == n) return;
// update points and segments
if (n > nOld) {
showNewPointsLabels =
labelPointsAndSegments
&& (A.isEuclidianVisible() && A.isLabelVisible()
|| B.isEuclidianVisible() && B.isLabelVisible());
outputPoints.augmentOutputSize(n - nOld, false);
if (labelPointsAndSegments && !labelsNeedIniting) outputPoints.updateLabels();
showNewSegmentsLabels = false;
for (int i = 0; i < outputSegments.size(); i++)
showNewSegmentsLabels =
showNewSegmentsLabels || outputSegments.getElement(i).isLabelVisible();
outputSegments.augmentOutputSize(n - nOld, false);
if (labelPointsAndSegments && !labelsNeedIniting) outputSegments.updateLabels();
} else {
for (int i = n; i < nOld; i++) {
outputPoints.getElement(i - 2).setUndefined();
outputSegments.getElement(i).setUndefined();
}
// update last segment
if (n > 2)
((GeoSegmentND) outputSegments.getElement(n - 1))
.modifyInputPoints((GeoPointND) outputPoints.getElement(n - 3), A);
else ((GeoSegmentND) outputSegments.getElement(n - 1)).modifyInputPoints(B, A);
}
}
/**
* Creates a new regular polygon algorithm
*
* @param c construction
* @param labels labels[0] for polygon, then labels for segments and then for points
* @param A1 first input point
* @param B1 second input point
* @param num number of vertices
*/
public AlgoPolygonRegularND(
Construction c,
String[] labels,
GeoPointND A1,
GeoPointND B1,
NumberValue num,
GeoDirectionND direction) {
super(c);
labelsNeedIniting = true;
this.A = A1;
this.B = B1;
this.num = num;
setDirection(direction);
// labels given by user or loaded from file
int labelsLength = labels == null ? 0 : labels.length;
// set labels for segments only when points have labels
labelPointsAndSegments = A.isLabelSet() || B.isLabelSet() || labelsLength > 1;
showNewSegmentsLabels = false;
showNewPointsLabels = false;
// temp center point of regular polygon
centerPoint = (GeoPointND) newGeoPoint(c);
rotAngle = new MyDouble(kernel);
outputPolygon =
new OutputHandler<GeoPolygon>(
new elementFactory<GeoPolygon>() {
public GeoPolygon newElement() {
GeoPolygon p = newGeoPolygon(cons);
p.setParentAlgorithm(AlgoPolygonRegularND.this);
return p;
}
});
outputSegments =
new OutputHandler<GeoElement>(
new elementFactory<GeoElement>() {
public GeoElement newElement() {
GeoElement segment =
(GeoElement) outputPolygon.getElement(0).createSegment(A, B, true);
segment.setAuxiliaryObject(true);
boolean segmentsVisible = false;
int size = outputSegments.size();
if (size > 0) { // check if at least one segment is
// visible
for (int i = 0; i < size && !segmentsVisible; i++) {
segmentsVisible =
segmentsVisible || outputSegments.getElement(i).isEuclidianVisible();
}
} else { // no segment yet
segmentsVisible = true;
}
segment.setEuclidianVisible(segmentsVisible);
segment.setLabelVisible(showNewSegmentsLabels);
segment.setViewFlags(((GeoElement) A).getViewSet());
segment.setVisibleInView3D((GeoElement) A);
segment.setVisibleInViewForPlane((GeoElement) A);
return segment;
}
});
if (!labelPointsAndSegments) outputSegments.removeFromHandler(); // no segments has output
outputPoints =
new OutputHandler<GeoElement>(
new elementFactory<GeoElement>() {
public GeoElement newElement() {
GeoElement newPoint = newGeoPoint(cons);
newPoint.setParentAlgorithm(AlgoPolygonRegularND.this);
newPoint.setAuxiliaryObject(true);
((GeoPointND) newPoint).setPointSize(A.getPointSize());
newPoint.setEuclidianVisible(A.isEuclidianVisible() || B.isEuclidianVisible());
newPoint.setAuxiliaryObject(true);
newPoint.setLabelVisible(showNewPointsLabels);
newPoint.setViewFlags(((GeoElement) A).getViewSet());
newPoint.setVisibleInView3D((GeoElement) A);
newPoint.setVisibleInViewForPlane((GeoElement) A);
GeoBoolean conditionToShow = ((GeoElement) A).getShowObjectCondition();
if (conditionToShow == null)
conditionToShow = ((GeoElement) B).getShowObjectCondition();
if (conditionToShow != null) {
try {
newPoint.setShowObjectCondition(conditionToShow);
} catch (Exception e) {
// circular exception -- do nothing
}
}
return newPoint;
}
});
if (!labelPointsAndSegments) outputPoints.removeFromHandler(); // no segments has output
// create polygon
outputPolygon.adjustOutputSize(1);
// create 2 first segments
outputSegments.augmentOutputSize(2, false);
outputSegments.getElement(0).setAuxiliaryObject(false);
((GeoSegmentND) outputSegments.getElement(1)).modifyInputPoints(B, A);
// for AlgoElement
setInputOutput();
GeoPolygon poly = getPoly();
// set that the poly output can have different points length
poly.setNotFixedPointsLength(true);
// compute poly
if (labelsLength > 1) {
compute((labelsLength + 1) / 2); // create maybe undefined outputs
poly.setLabel(labels[0]);
int d = 1;
for (int i = 0; i < outputSegments.size(); i++)
outputSegments.getElement(i).setLabel(labels[d + i]);
d += outputSegments.size();
for (int i = 0; i < outputPoints.size(); i++)
outputPoints.getElement(i).setLabel(labels[d + i]);
} else if (labelsLength == 1) {
poly.setLabel(labels[0]);
} else {
poly.setLabel(null);
}
labelsNeedIniting = false;
update();
/*
* if (labelPointsAndSegments) { //poly.initLabels(labels); } else if
* (labelsLength == 1) { poly.setLabel(labels[0]); } else {
* poly.setLabel(null); }
*
*
* labelsNeedIniting = false;
*/
// make sure that we set all point and segment labels when needed
// updateSegmentsAndPointsLabels(points.length);
}