private static boolean intersects(
Envelope envelope, Code reqCRS, Envelope[] envs, LonLatEnvelope llEnv)
throws UnknownCRSException {
boolean res = false;
String reqCRSCode = reqCRS.getCode();
try {
if (envs == null || envs.length == 0) {
Envelope latlonEnv =
GeometryFactory.createEnvelope(
llEnv.getMin().getX(),
llEnv.getMin().getY(),
llEnv.getMax().getX(),
llEnv.getMax().getY(),
CRSFactory.create("EPSG:4326"));
if (!"EPSG:4326".equals(reqCRSCode)) {
res = intersects(envelope, reqCRSCode, latlonEnv, "EPSG:4326");
} else {
res = envelope.intersects(latlonEnv);
}
} else {
for (int i = 0; i < envs.length && !res; i++) {
if (intersects(
envelope, reqCRSCode, envs[i], envs[i].getCoordinateSystem().getPrefixedName())) {
res = true;
break;
}
}
}
} catch (GeometryException ex) {
LOG.logWarning("intersection test; translation into surface failed", ex);
} catch (CRSException ex) {
LOG.logWarning(
"intersection test; transformation of reqeust envelope/valid area impossible", ex);
} catch (CRSTransformationException ex) {
LOG.logWarning("intersection test; transformation of reqeust envelope/valid area failed", ex);
}
return res;
}
/** return the LonLatEnvelope of the entire image in "EPSG:4326" */
private Envelope getLLEAsEnvelope() {
String code = getNativeSRSCode();
LonLatEnvelope lle = description.getLonLatEnvelope();
Envelope tmp =
GeometryFactory.createEnvelope(
lle.getMin().getX(),
lle.getMin().getY(),
lle.getMax().getX(),
lle.getMax().getY(),
null);
try {
if (!code.equals("EPSG:4326")) {
GeoTransformer trans = new GeoTransformer(code);
tmp = trans.transform(tmp, "EPSG:4326");
}
} catch (Exception e) {
LOGGER.logError(StringTools.stackTraceToString(e));
}
return tmp;
}