Knowledge Base - Technical Articles
FAQ: What is the Projection Engine?
| Article ID: | 17416 |
|---|---|
| Software: | ArcView GIS 3.2a, 3.3 MapObjects-Windows 2.0, 2.0a, 2.1, 2.2, 2.3, 2.4 ArcSDE 3.0, 3.0.1, 3.0.2, 3.0.2.1, 3.0.2.2, 8.0.1, 8.0.2, 8.1, 8.1.2, 8.2, 8.3, 9.0, 9.1, 9.2, 9.3, 9.3.1, 10, 10.1 ArcGIS - ArcInfo 8.0.1, 8.0.2, 8.1, 8.1.2, 8.2, 8.3, 9.0, 9.1, 9.2, 9.3, 9.3.1, 10 ArcGIS for Desktop Advanced 10.1 ArcGIS for Desktop Standard 10.1 ArcGIS for Server 10.1 |
| Platforms: | N/A |
Question
What is the Projection Engine?
Answer
The Projection Engine is a developer's library that provides map projection and datum transformation support. The data model is derived from a modified version of the original European Petroleum Survey Group's (EPSG) coordinate system model.
The Projection Engine was first incorporated into ArcSDE 3. It has since been used in MapObjects 2, the ArcView Projection Utility, ArcPad, and ArcGIS 8 and later versions.
EPSG also publishes a database of coordinate system information plus related documents on map projections and datums.
The Projection Engine was first incorporated into ArcSDE 3. It has since been used in MapObjects 2, the ArcView Projection Utility, ArcPad, and ArcGIS 8 and later versions.
EPSG also publishes a database of coordinate system information plus related documents on map projections and datums. Related Information
- EPSG home page
- What do the acronyms EPSG and POSC stand for?
EPSG stands for European Petroleum Survey Group. They publish a database of coordinate system information plus some very good related documents on map projections and datums. The Projection Engine uses a modified version of the EPSG model. POSC...
Created: 3/22/2001
Last Modified: 5/25/2012
By Anonymous - 03/24/2003 7:25 AM
I am trying to figure out how to overlay data that has an undefined coordinate system. This is yet another article that is no help.