/// <summary>
/// Overlay options
/// </summary>
/// <param name="baseLayerPath">the complete path of the base layer</param>
/// <param name="overlayLayerPath">the complete path of the overlay layer</param>
/// <param name="resultLayerPath">the complete path of result layer</param>
/// <param name="type">overlay option type</param>
public static bool OverlayOperate(OSGeo.OGR.Layer baseLayer, OSGeo.OGR.Layer overlayLayer,
ref OSGeo.OGR.Layer resultLayer, OverlayType type, Ogr.GDALProgressFuncDelegate callback)
{
try
{
string[] options = new string[] { "SKIP_FAILURES=YES" };
switch (type)
{
case OverlayType.Intersects:
baseLayer.Intersection(overlayLayer, resultLayer, options, callback, "Intersection");
break;
case OverlayType.Union:
baseLayer.Union(overlayLayer, resultLayer, options, callback, "Union");
break;
case OverlayType.SymDifference:
baseLayer.SymDifference(overlayLayer, resultLayer, options, callback, "SymDifference");
break;
case OverlayType.Identity:
baseLayer.Identity(overlayLayer, resultLayer, options, callback, "Identity");
break;
case OverlayType.Update:
baseLayer.Update(overlayLayer, resultLayer, options, callback, "Update");
break;
case OverlayType.Clip:
baseLayer.Clip(overlayLayer, resultLayer, options, callback, "Clip");
break;
case OverlayType.Erase:
baseLayer.Erase(overlayLayer, resultLayer, options, callback, "Erase");
break;
}
return(true);
}
catch (Exception e)
{
//throw e;
return(false);
}
}
