@Override
public final void compute() {
if (!f.toGeoElement().isDefined()) {
g.toGeoElement().setUndefined();
return;
}
applyCasCommand(StringTemplate.prefixedDefault);
}
// for AlgoElement
@Override
protected void setInputOutput() {
input = new GeoElement[1];
input[0] = f.toGeoElement();
setOutputLength(1);
setOutput(0, g.toGeoElement());
setDependencies(); // done by AlgoElement
}
/**
* Creates CAS algo, doesn't set any input, output or label
*
* @param cons construction
* @param f input function
*/
protected AlgoCasBase(Construction cons, CasEvaluableFunction f, Commands cmd) {
super(cons);
this.f = f;
this.cmd = cmd;
cons.addCASAlgo(this);
g = (CasEvaluableFunction) f.toGeoElement().copyInternal(cons);
}
/**
* Creates CAS algo and sets input, output and label. Do not use if compute() or setInputOutput()
* are overriden.
*
* @param cons construction
* @param label label for output
* @param f input function
*/
protected AlgoCasBase(Construction cons, String label, CasEvaluableFunction f, Commands cmd) {
this(cons, f, cmd);
setInputOutput(); // for AlgoElement
compute();
g.toGeoElement().setLabel(label);
}
/** @return resulting function */
public GeoElement getResult() {
return g.toGeoElement();
}
/**
* Clears the cache (needed in Web when the CAS loads)
*
* @param label not used
*/
public final void clearCasEvalMap(String label) {
f.clearCasEvalMap(label);
}
