package org.geogebra.common.kernel.commands;
import org.geogebra.common.kernel.Kernel;
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.kernel.kernelND.GeoLineND;
import org.geogebra.common.kernel.kernelND.GeoVectorND;
import org.geogebra.common.main.MyError;
/**
* Diameter[ <GeoVector>, <GeoConic> ] Diameter[ <GeoLine>, <GeoConic> ]
*/
public class CmdDiameter extends CommandProcessor {
/**
* Create new command processor
*
* @param kernel
* kernel
*/
public CmdDiameter(Kernel kernel) {
super(kernel);
}
@Override
final public GeoElement[] process(Command c) throws MyError {
int n = c.getArgumentNumber();
boolean[] ok = new boolean[n];
GeoElement[] arg;
switch (n) {
case 2:
arg = resArgs(c);
// diameter line conjugate to vector relative to conic
if ((ok[0] = (arg[0].isGeoVector()))
&& (ok[1] = (arg[1].isGeoConic()))) {
GeoElement[] ret = { diameter(c.getLabel(),
(GeoVectorND) arg[0], (GeoConicND) arg[1]) };
return ret;
}
// diameter line conjugate to line relative to conic
if ((ok[0] = (arg[0].isGeoLine()))
&& (ok[1] = (arg[1].isGeoConic()))) {
GeoElement[] ret = { diameter(c.getLabel(), (GeoLineND) arg[0],
(GeoConicND) arg[1]) };
return ret;
}
if (!ok[0]) {
throw argErr(app, c, arg[0]);
}
throw argErr(app, c, arg[1]);
default:
throw argNumErr(app, c, n);
}
}
/**
*
* @param label
* label
* @param l
* line
* @param c
* conic
* @return diameter line
*/
protected GeoElement diameter(String label, GeoLineND l, GeoConicND c) {
return getAlgoDispatcher().DiameterLine(label, l, c);
}
/**
*
* @param label
* label
* @param v
* vector
* @param c
* conic
* @return diameter line
*/
protected GeoElement diameter(String label, GeoVectorND v, GeoConicND c) {
return getAlgoDispatcher().DiameterLine(label, v, c);
}
}