/*
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.
*/
/*
* AlgoLengthVector.java
*
*/
package org.geogebra.common.geogebra3D.kernel3D.algos;
import org.geogebra.common.kernel.Construction;
import org.geogebra.common.kernel.StringTemplate;
import org.geogebra.common.kernel.Matrix.Coords;
import org.geogebra.common.kernel.algos.AlgoElement;
import org.geogebra.common.kernel.commands.Commands;
import org.geogebra.common.kernel.geos.GeoElement;
import org.geogebra.common.kernel.geos.GeoNumeric;
import org.geogebra.common.kernel.kernelND.GeoPointND;
import org.geogebra.common.util.MyMath;
/**
* Distance origin to point
*
* @author mathieu
*/
public class AlgoLengthPoint3D extends AlgoElement {
private GeoPointND p; // input
private GeoNumeric num; // output
public AlgoLengthPoint3D(Construction cons, String label, GeoPointND p) {
super(cons);
this.p = p;
num = new GeoNumeric(cons);
setInputOutput(); // for AlgoElement
// compute length
compute();
num.setLabel(label);
}
@Override
public Commands getClassName() {
return Commands.Length;
}
// for AlgoElement
@Override
protected void setInputOutput() {
input = new GeoElement[1];
input[0] = (GeoElement) p;
setOnlyOutput(num);
setDependencies(); // done by AlgoElement
}
public GeoNumeric getLength() {
return num;
}
// calc length of vector v
@Override
public final void compute() {
Coords coords = p.getInhomCoordsInD3();
num.setValue(
MyMath.length(coords.getX(), coords.getY(), coords.getZ()));
}
@Override
final public String toString(StringTemplate tpl) {
return getLoc().getPlain("LengthOfA", ((GeoElement) p).getLabel(tpl));
}
}