public Set<Range<Double>> getValidScaleRanges() {
HashSet<Range<Double>> ranges = new HashSet<Range<Double>>();
try {
Layer layer = context.getGeoResource().resolve(Layer.class, ProgressManager.instance().get());
double min = layer.getScaleDenominatorMin();
double max = layer.getScaleDenominatorMax();
if (invalidScale(min) && invalidScale(max)) {
return ranges;
}
if (invalidScale(min)) {
min = Double.MIN_VALUE;
}
if (invalidScale(max)) {
max = Double.MAX_VALUE;
}
if (min < max) {
ranges.add(new Range<Double>(Double.class, min, max));
} else {
ranges.add(new Range<Double>(Double.class, max, min));
}
} catch (IOException e) {
throw (RuntimeException) new RuntimeException().initCause(e);
}
return ranges;
}
