How to define a custom projection?

We use a "local" coordinate system that is a "shifted and rotated" State Plane projection. How would I define that (or can I)? I can make a "copy" of the State Plane projection into a custom .dty file, but how/where do I apply the rotation and shift parameters?
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  • At this time the translation/scale/roatation parameters are not available for edit in the interface.  We have filed a TR for this.

     

    However if your project is not spatially large you could get good results by implementing a local CS by using the define GCS by placemarks tool.  Check in the MicroStation help under:

    Geographic Coordinate System From Placemarks dialog

    Keith Raymond

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  • At this time the translation/scale/roatation parameters are not available for edit in the interface.  We have filed a TR for this.

     

    However if your project is not spatially large you could get good results by implementing a local CS by using the define GCS by placemarks tool.  Check in the MicroStation help under:

    Geographic Coordinate System From Placemarks dialog

    Keith Raymond

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