/*
GeoGebra - Dynamic Mathematics for Everyone
http://www.geogebra.org
This file is part of GeoGebra.
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation.
*/
package org.geogebra.common.geogebra3D.kernel3D.algos;
import org.geogebra.common.geogebra3D.kernel3D.geos.GeoLine3D;
import org.geogebra.common.kernel.Construction;
import org.geogebra.common.kernel.StringTemplate;
import org.geogebra.common.kernel.Matrix.Coords;
import org.geogebra.common.kernel.commands.Commands;
import org.geogebra.common.kernel.geos.GeoElement;
import org.geogebra.common.kernel.kernelND.GeoCoordSys2D;
import org.geogebra.common.kernel.kernelND.GeoDirectionND;
import org.geogebra.common.kernel.kernelND.GeoPointND;
/**
* Compute a line orthogonal to a line, through a point, and parallel to a plane
*
* @author matthieu
*/
public class AlgoOrthoLinePointDirectionDirection extends AlgoElement3D {
private GeoPointND point; // input
private GeoDirectionND direction1, direction2; // input
private GeoLine3D line; // output
public AlgoOrthoLinePointDirectionDirection(Construction cons, String label,
GeoPointND point, GeoDirectionND direction1,
GeoDirectionND direction2) {
super(cons);
this.point = point;
this.direction1 = direction1;
this.direction2 = direction2;
line = new GeoLine3D(cons);
setInputOutput(
new GeoElement[] { (GeoElement) point, (GeoElement) direction1,
(GeoElement) direction2 },
new GeoElement[] { getLine() });
// compute line
compute();
getLine().setLabel(label);
}
public GeoLine3D getLine() {
return line;
}
@Override
public Commands getClassName() {
return Commands.OrthogonalLine;
}
@Override
public void compute() {
Coords direction = direction1.getDirectionInD3()
.crossProduct(direction2.getDirectionInD3());
if (direction.isZero()) {
line.setUndefined();
} else {
line.setCoord(point.getInhomCoordsInD3(), direction);
}
}
@Override
public String toString(StringTemplate tpl) {
// point, plane, line
if (direction1 instanceof GeoCoordSys2D) {
return getLoc().getPlain("LineThroughAParallelToBPerpendicularToC",
point.getLabel(tpl), direction1.getLabel(tpl),
direction2.getLabel(tpl));
}
// point, line, plane
if (direction2 instanceof GeoCoordSys2D) {
return getLoc().getPlain("LineThroughAPerpendicularToBParallelToC",
point.getLabel(tpl), direction1.getLabel(tpl),
direction2.getLabel(tpl));
}
// point, line, line
return getLoc().getPlain("LineThroughAPerpendicularToBAndC",
point.getLabel(tpl), direction1.getLabel(tpl),
direction2.getLabel(tpl));
}
}