Coordinate handling for reservoir definition (proposal)

• have a projection (if we have a good library supporting planar projection operations: use a proj4-string. Else: use an UTM zone number and imply UTM as only RAMSIS carthesian system)
• (optional) have a reference point (tbd: given in WGS-84 or projected coordinate) as a project setting. All local coordinates are then translated with respect to this reference (reference point carthesian coordinates subtracted from standard projection carthesian coordinates.
• give reservoir definition in the local carthesian coordinates as 3 vectors: bin edges in x, y, and z direction, implying a model volume (and subvolumes) to be box-shaped, orthogonal and oriented along main axes. (rather than a polyhedral representation in wgs-84. Reason: those do not necessarily translate to orthogonal boxes in local coordinate space. Many models will face problems to calculate a and b for random bodies)
• (do not consider altitude in all projection operations)
• return seismicity forecast results with reference to the carthesian volumes

(for discussion/review)