/*
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.kernel.algos;
import org.geogebra.common.kernel.Construction;
import org.geogebra.common.kernel.StringTemplate;
import org.geogebra.common.kernel.commands.Commands;
import org.geogebra.common.kernel.geos.GeoConic;
import org.geogebra.common.kernel.geos.GeoElement;
import org.geogebra.common.kernel.geos.GeoList;
import org.geogebra.common.kernel.geos.GeoNumeric;
/**
* @since 4.0
* @author Tam
* @version 2012-03-20
*/
public class AlgoConicFromCoeffList extends AlgoElement {
private GeoList L; // input A list of 6 coeffs
private GeoConic conic; // output
/**
* @param cons
* construction
* @param label
* label
* @param L
* coefficients
*/
public AlgoConicFromCoeffList(Construction cons, String label, GeoList L) {
super(cons);
this.L = L;
conic = new GeoConic(cons);
setInputOutput(); // for AlgoElement
compute();
conic.setLabel(label);
}
@Override
public Commands getClassName() {
return Commands.Conic;
}
// for AlgoElement
@Override
protected void setInputOutput() {
input = new GeoElement[] { L };
setOutputLength(1);
setOutput(0, conic);
setDependencies(); // done by AlgoElement
}
/**
* @return output conic
*/
public GeoConic getConic() {
return conic;
}
/**
* @return input coefficient list
*/
GeoList getCoeffList() {
return L;
}
@Override
public final void compute() {
if (L.size() != 6) {
conic.setUndefined();
} else {
conic.setCoeffs(((GeoNumeric) L.get(0)).getDouble(),
((GeoNumeric) L.get(3)).getDouble(),
((GeoNumeric) L.get(1)).getDouble(),
((GeoNumeric) L.get(4)).getDouble(),
((GeoNumeric) L.get(5)).getDouble(),
((GeoNumeric) L.get(2)).getDouble());
}
}
@Override
final public String toString(StringTemplate tpl) {
// Michael Borcherds 2008-03-30
// simplified to allow better Chinese translation
return getLoc().getPlain("ConicFromCoeffListA", L.getLabel(tpl));
}
}