private ReferencedEnvelope calcLayersBounds(
Collection<ILayer> layers, CoordinateReferenceSystem crs, IProgressMonitor monitor)
throws Exception {
log.debug("### mapCRS: " + crs); // $NON-NLS-1$
ReferencedEnvelope result = null; // new ReferencedEnvelope( crs );
for (ILayer layer : layers) {
try {
IGeoResource res = layer.getGeoResource();
if (res == null) {
continue;
}
ReferencedEnvelope bbox =
SetLayerBoundsOperation.obtainBoundsFromResources(layer, crs, monitor);
if (!bbox.getCoordinateReferenceSystem().equals(crs)) {
bbox = bbox.transform(crs, true);
}
log.debug("layer: " + layer + ", bbox= " + bbox); // $NON-NLS-1$ //$NON-NLS-2$
if (result == null) {
result = bbox;
} else {
result.expandToInclude(bbox);
}
log.debug("result: bbox= " + result); // $NON-NLS-1$
} catch (Exception e) {
// XXX mark layers!?
log.debug("", e); // $NON-NLS-1$
log.warn(
"skipping layer: " + layer.getLabel() + " (" + e.toString(),
e); //$NON-NLS-1$ //$NON-NLS-2$
layer.setLayerStatus(
new LayerStatus(
Status.WARNING,
LayerStatus.UNSPECIFIED,
Messages.get("LayerStatus_noCrs"),
e)); //$NON-NLS-1$
}
}
return result != null ? result : ReferencedEnvelope.EVERYTHING.transform(crs, true);
}
