// for AlgoElement
@Override
protected void setInputOutput() {
input = new GeoElement[2];
input[0] = path.toGeoElement();
input[1] = point.toGeoElement();
setOutputLength(1);
setOutput(0, (GeoElement) P);
setDependencies(); // done by AlgoElement
}
@Override
public final void compute() {
if (input[0].isDefined() && point.isDefined()) {
if (path instanceof GeoFunction) {
Function fun = (Function) ((GeoFunction) path).getFunction().deepCopy(kernel);
Coords coords = point.getCoordsInD2();
double val =
AlgoDistancePointObject.getClosestFunctionValueToPoint(
fun, coords.getX(), coords.getY());
((GeoPoint) P).setCoords(val, fun.evaluate(val), 1.0);
} else {
setCoords();
path.pointChanged(P);
}
P.updateCoords();
} else {
P.setUndefined();
}
}