@Override
public Aggregates<A> merge(Aggregates<A> left, Aggregates<A> right) {
Aggregates<A> raw = base.merge(left, right);
GlyphList<Shape, A> contours = new GlyphList<>();
if (left instanceof ContourAggregates) {
contours.addAll(((ContourAggregates<A>) left).contours);
}
if (right instanceof ContourAggregates) {
contours.addAll(((ContourAggregates<A>) right).contours);
}
return new ContourAggregates<>(raw, contours);
}
@Override
public ContourAggregates<N> process(Aggregates<? extends N> aggregates, Renderer rend) {
Aggregates<? extends N> padAggs = new PadAggregates<>(aggregates, null);
Aggregates<Boolean> isoDivided = rend.transfer(padAggs, new ISOBelow<>(threshold));
Aggregates<MC_TYPE> classified = rend.transfer(isoDivided, new MCClassifier());
Shape s = Assembler.assembleContours(classified, isoDivided);
GlyphList<Shape, N> contours = new GlyphList<>();
contours.add(new SimpleGlyph<>(s, threshold));
if (!fill) {
isoDivided = rend.transfer(isoDivided, new General.Simplify<>(isoDivided.defaultValue()));
}
Aggregates<N> base =
rend.transfer(
isoDivided, new General.MapWrapper<>(true, threshold, aggregates.defaultValue()));
return new ContourAggregates<>(base, contours);
}