2
votes
0answers
45 views

Using ST_Affine() and trans_param() functions on vector layer

After reading this post How to georeference a vector layer with control points? I decided to give it a try to move/rotation/scale a polygon using Postgis. I have two polygons, polygon_from and ...
1
vote
1answer
131 views

QGIS Georeferencer, unexpected transformation, and GCP placement

Im trying to get the sample map which i believe to be EPSG:3112 into QGIS and geo referenced. In my screenshot, on the right is the raster in georeferencer with the points i have added. On the left is ...
2
votes
2answers
367 views

How to create a “Datum-less” projection in QGIS?

I want to use QGIS to do some georeferencing and image registration. On ArcMap10 I can define an "Unknown Projection", basically a default metric grid, and use it as a grid for georeferncing. In QGIS ...
3
votes
1answer
456 views

Transform multiple layers as one unit in ArcGIS 10?

The general/conceptual question: Is there a way to transform multiple layers together in ArcMap 10 (on Windows XP SP3) as one unit? More specifically: I have an ArcMap document with a georeferenced ...