[Manifold-l] Exporting to shapefile: Displacement

[adamw at manifold.net]

> Does anybody's having problems exporting shapefiles using State Plane
> Coord System ?
>
> It appears that sometimes the coords are multiplied by a factor,
> placing the exported shapefile hundred of miles away from their
> correct place.
>
> My workaround is to project back the original (TIGER file) to Lat/Long
> (nad83), export that to shapefile and project the resulting file to
> SPCS NAD83

No need to project to lat/lon. Project to a modification of the coordinate system that you are already using, but with the local offsets of 0 and the local scales of 1. Then repeat the export.

--
Adam Wachowski
Manifold Development Team