Hi
I have set up a user defined coordinate system that is only valid for a smalle area ( the Island of Fehmarn in Germany). In this I have set up min and max values of longitude and latitudes.
Are there any way I can set up Bentley Map and Microstation so a user cannot reproject designfiles to this coordinate system when the data is outside these limits ??
Erik,
Unfortunately there is no such feature. The area defined in the geographic coordinate system definition is called the user-defined domain and is not enforced anywhere. It is only for information purposes only.
Internally , we do implement some sort of "mathematical domain" computations which calculates an area upon which reprojection is possible. The "mathematical domain" is automatically applied but only to rasters and to upcoming SS3 Scaleable Terrain Model only. For these two types of elements, the element is automatically clipped to an area upon which the reprojection is possible.
The intent was to allow displaying of world representing rasters such as Bing Maps and various WMS based layers which extend upon very large areas but needed to be used on projects limited in area and using a projection that could not be applied to the whole Earth.
This mathematical domain is computed only for a limited number of projection methods.
The application of a mathematical domain is unfortunately not so easy for vector and we will have to think further how such limitation can be performed in future versions.
Alain Robert