/** Get all the graphics from the shapefile, colored appropriately. */
public OMGraphicList getGraphics() {
if (omgraphics == null) {
omgraphics = new OMGraphicList();
try {
spatialIndex.getOMGraphics(
-180, -90, 180, 90, omgraphics, drawingAttributes, (Projection) null, coordTransform);
updateDrawingParameters(omgraphics);
} catch (IOException ioe) {
Debug.error(ioe.getMessage());
} catch (FormatException fe) {
Debug.error(fe.getMessage());
}
}
return omgraphics;
}
/**
* Get the graphics for a particular lat/lon area.
*
* @param ulLat upper left latitude, in decimal degrees.
* @param ulLon upper left longitude, in decimal degrees.
* @param lrLat lower right latitude, in decimal degrees.
* @param lrLon lower right longitude, in decimal degrees.
* @param proj the current map projection.
* @return OMGraphicList
*/
public OMGraphicList getGraphics(
double ulLat, double ulLon, double lrLat, double lrLon, Projection proj) {
if (cacheURL != null) {
return omgraphics;
}
if (spatialIndex == null) {
return new OMGraphicList();
}
if (politicalAreas == null) {
initialize(originalPrefix, originalProperties);
}
OMGraphicList list = new OMGraphicList();
// check for dateline anomaly on the screen. we check for
// ulLon >= lrLon, but we need to be careful of the check for
// equality because of floating point arguments...
if (ProjMath.isCrossingDateline(ulLon, lrLon, proj.getScale())) {
if (Debug.debugging("areas")) {
Debug.output("AreaHander.getGraphics(): Dateline is on screen");
}
double ymin = Math.min(ulLat, lrLat);
double ymax = Math.max(ulLat, lrLat);
try {
list =
spatialIndex.getOMGraphics(
ulLon, ymin, 180.0d, ymax, list, drawingAttributes, proj, coordTransform);
list =
spatialIndex.getOMGraphics(
-180.0d, ymin, lrLon, ymax, list, drawingAttributes, proj, coordTransform);
} catch (InterruptedIOException iioe) {
// This means that the thread has been interrupted,
// probably due to a projection change. Not a big
// deal, just return, don't do any more work, and let
// the next thread solve all problems.
list = null;
} catch (IOException ex) {
ex.printStackTrace();
} catch (FormatException fe) {
fe.printStackTrace();
}
} else {
double xmin = (double) Math.min(ulLon, lrLon);
double xmax = (double) Math.max(ulLon, lrLon);
double ymin = (double) Math.min(ulLat, lrLat);
double ymax = (double) Math.max(ulLat, lrLat);
try {
list =
spatialIndex.getOMGraphics(
xmin, ymin, xmax, ymax, list, drawingAttributes, proj, coordTransform);
} catch (InterruptedIOException iioe) {
// This means that the thread has been interrupted,
// probably due to a projection change. Not a big
// deal, just return, don't do any more work, and let
// the next thread solve all problems.
list = null;
} catch (java.io.IOException ex) {
ex.printStackTrace();
} catch (FormatException fe) {
fe.printStackTrace();
}
}
updateDrawingParameters(list);
return list;
}
