package org.geogebra.common.kernel.commands;
import org.geogebra.common.kernel.Construction;
import org.geogebra.common.kernel.Kernel;
import org.geogebra.common.kernel.algos.AlgoFocus;
import org.geogebra.common.kernel.arithmetic.Command;
import org.geogebra.common.kernel.geos.GeoElement;
import org.geogebra.common.kernel.kernelND.GeoConicND;
import org.geogebra.common.main.MyError;
/**
* Focus[ <GeoConic> ]
*/
public class CmdFocus extends CommandProcessor {
/**
* Create new command processor
*
* @param kernel
* kernel
*/
public CmdFocus(Kernel kernel) {
super(kernel);
}
@Override
final public GeoElement[] process(Command c) throws MyError {
int n = c.getArgumentNumber();
GeoElement[] arg;
switch (n) {
case 1:
arg = resArgs(c);
if (arg[0].isGeoConic()) {
AlgoFocus algo = newAlgoFocus(cons, c.getLabels(),
(GeoConicND) arg[0]);
return (GeoElement[]) algo.getFocus();
}
throw argErr(app, c, arg[0]);
default:
throw argNumErr(app, c, n);
}
}
/**
*
* @param cons1
* construction
* @param labels
* labels for loci
* @param c
* conic
* @return new AlgoFocus
*/
protected AlgoFocus newAlgoFocus(Construction cons1, String[] labels,
GeoConicND c) {
return new AlgoFocus(cons1, labels, c);
}
}