/**
* Parse Layer Bounding Boxes
*
* @param nl
* @return LayerBoundingBox[]
* @throws XMLParsingException
*/
protected LayerBoundingBox[] parseLayerBoundingBoxes(List nl) throws XMLParsingException {
LOG.entering();
LayerBoundingBox[] llBoxes = new LayerBoundingBox[nl.size()];
for (int i = 0; i < llBoxes.length; i++) {
double minx = XMLTools.getRequiredNodeAsDouble((Node) nl.get(i), "./@minx", nsContext);
double maxx = XMLTools.getRequiredNodeAsDouble((Node) nl.get(i), "./@maxx", nsContext);
double miny = XMLTools.getRequiredNodeAsDouble((Node) nl.get(i), "./@miny", nsContext);
double maxy = XMLTools.getRequiredNodeAsDouble((Node) nl.get(i), "./@maxy", nsContext);
double resx = XMLTools.getNodeAsDouble((Node) nl.get(i), "./@resx", nsContext, -1);
double resy = XMLTools.getNodeAsDouble((Node) nl.get(i), "./@resx", nsContext, -1);
String srs = XMLTools.getRequiredNodeAsString((Node) nl.get(i), "./@SRS", nsContext);
Position min = GeometryFactory.createPosition(minx, miny);
Position max = GeometryFactory.createPosition(maxx, maxy);
llBoxes[i] = new LayerBoundingBox(min, max, srs, resx, resy);
}
LOG.exiting();
return llBoxes;
}
/**
* Parse Scale Hint
*
* @param layerElem
* @return ScaleHint
* @throws XMLParsingException
*/
protected ScaleHint parseScaleHint(Element layerElem) throws XMLParsingException {
LOG.entering();
ScaleHint scaleHint = null;
Node scNode = XMLTools.getNode(layerElem, "./ScaleHint", nsContext);
if (scNode != null) {
double mn = XMLTools.getNodeAsDouble(scNode, "./@min", nsContext, 0);
double mx = XMLTools.getNodeAsDouble(scNode, "./@max", nsContext, Double.MAX_VALUE);
scaleHint = new ScaleHint(mn, mx);
} else {
// set default value to avoid NullPointerException
// when accessing a layers scalehint
scaleHint = new ScaleHint(0, Double.MAX_VALUE);
}
LOG.exiting();
return scaleHint;
}
