/**
* 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;
}
/**
* Get the map coverage
*
* @param ullat
* @param ullon
* @param lrlat
* @param lrlon
* @param proj projection for display
* @param chartSeries the chart series to query for, may be null for all coverages
* @param coverages The Map to be modified
*/
protected void getCatalogCoverage(
double ullat,
double ullon,
double lrlat,
double lrlon,
Projection proj,
String chartSeries,
Map<RpfProductInfo, RpfCoverage.RpfCoverageControl> coverages) {
Debug.message("rpfcov", "RpfCoverageManager: Getting catalog coverage from RpfFrameProvider");
if (proj == null || frameProvider == null) {
return;
}
CADRG cadrg;
if (proj instanceof CADRG) {
cadrg = (CADRG) proj;
} else {
cadrg =
new CADRG(
(LatLonPoint) proj.getCenter(new LatLonPoint.Float()),
proj.getScale(),
proj.getWidth(),
proj.getHeight());
}
List<RpfCoverageBox> hemisphereData = new ArrayList<RpfCoverageBox>();
if (ProjMath.isCrossingDateline(ullon, lrlon, proj.getScale())) {
hemisphereData.addAll(
frameProvider.getCatalogCoverage(ullat, ullon, lrlat, 180f, cadrg, chartSeries));
hemisphereData.addAll(
frameProvider.getCatalogCoverage(ullat, -180f, lrlat, lrlon, cadrg, chartSeries));
} else {
hemisphereData.addAll(
frameProvider.getCatalogCoverage(ullat, ullon, lrlat, lrlon, cadrg, chartSeries));
}
boolean checkSeries =
!(chartSeries == null
|| chartSeries.equals(RpfViewAttributes.ANY)
|| chartSeries.equals(RpfViewAttributes.ALL));
for (RpfCoverageBox box : hemisphereData) {
OMRect rect = new OMRect(box.nw_lat, box.nw_lon, box.se_lat, box.se_lon, currentLineType);
RpfProductInfo rpi = RpfProductInfo.get(box.chartCode);
if (rpi != null) {
if (checkSeries && !rpi.seriesCode.equalsIgnoreCase(chartSeries)) {
continue;
}
RpfCoverage.RpfCoverageControl control = coverages.get(rpi);
if (control != null) {
control.add(rect);
rect.generate(proj);
}
}
}
}