/// <summary>
///
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
public bool EqualParams(object obj)
{
if (obj is DotSpatialCoordinateSystem)
{
return(_projectionInfo.Matches(((DotSpatialCoordinateSystem)obj)._projectionInfo));
}
if (obj is ProjectionInfo)
{
return(_projectionInfo.Matches((ProjectionInfo)obj));
}
return(false);
}
public static GeometryTransform GetTransform(string shapefile, string targetWKT)
{
string prjPath = Path.ChangeExtension(shapefile, ".prj");
if (targetWKT != null && File.Exists(prjPath))
{
string sourceWKT = File.ReadAllText(prjPath);
ProjectionInfo source = ProjectionInfo.FromEsriString(sourceWKT);
ProjectionInfo target = ProjectionInfo.FromEsriString(targetWKT);
if (source != null && !source.Matches(target))
{
return(new GeometryTransform(source, target));
}
}
return(null);
}
/// <summary>
/// Reprojects all of the in-ram vertices of vectors, or else this
/// simply updates the "Bounds" of image and raster objects
/// This will also update the projection to be the specified projection.
/// </summary>
/// <param name="targetProjection">
/// The projection information to reproject the coordinates to.
/// </param>
public override void Reproject(ProjectionInfo targetProjection)
{
base.Reproject(targetProjection);
if (targetProjection != null)
{
//Set the target projection if necessary
_targetProjection = targetProjection.Matches(_sourceProjection)
? null
: targetProjection;
}
else
{
_targetProjection = null;
}
// Adjusting the projection
Projection = _targetProjection ?? _sourceProjection;
//Is this necessary?
//MapFrame.Invalidate(Extent);
}
/// <summary>
/// Tests whether this transform does not move any points.
/// </summary>
/// <returns></returns>
public bool Identity()
{
return(_source.Matches(_target));
}
