/** @return layer's units */
private Unit<?> getLayerUnits(final ILayer layer) {
CoordinateReferenceSystem crs = LayerUtil.getCrs(layer);
Unit<?> units = GeoToolsUtils.getDefaultCRSUnit(crs);
return units;
}
/** @return map's units */
private Unit<?> getMapUnits() {
IMap map = getCurrentMap();
assert map != null;
CoordinateReferenceSystem crs = MapUtil.getCRS(map);
Unit<?> mapUnits = GeoToolsUtils.getDefaultCRSUnit(crs);
return mapUnits;
}
public void run(IProgressMonitor monitor) throws Exception {
final ILayer editLayer = handler.getEditLayer();
final Point mouseLocation = position;
final EditBlackboard layerBlackboard = handler.getEditBlackboard(editLayer);
final boolean includeSegmentsInCurrent = true;
final SnapBehaviour snapBehaviour = SnapBehaviour.CURRENT_LAYER;
final CoordinateReferenceSystem mapCrs = handler.getContext().getCRS();
final int snappingRadius = PreferenceUtil.instance().getSnappingRadius();
final SnapSegmentFinder segmentFinder = new SnapSegmentFinder(mapCrs);
List<LineSegment> linesList = new ArrayList<LineSegment>();
LineSegment closestSnapSegment;
closestSnapSegment =
segmentFinder.getClosestSnapSegment(
handler,
layerBlackboard,
mouseLocation,
includeSegmentsInCurrent,
snapBehaviour,
snappingRadius);
if (closestSnapSegment != null) {
CoordinateReferenceSystem layerCrs = editLayer.getCRS();
closestSnapSegment = GeoToolsUtils.reproject(closestSnapSegment, mapCrs, layerCrs);
}
linesList.add(closestSnapSegment);
if (this.mapMouseEvent.isShiftDown()) {
this.segmentCopyContext.addSegments(linesList);
} else {
this.segmentCopyContext.setReferenceLineSegment(closestSnapSegment);
}
this.segmentCopyContext.setMode(PrecisionToolsMode.WAITING);
System.out.println("\nSegment: " + closestSnapSegment.toString());
}