Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

Where can more information be found about coordinate systems, map projections, and datums?

April 26, 2017coordinate datums map projections SYSTEMS

0

Posted

Where can more information be found about coordinate systems, map projections, and datums?

1 Answer

0

Posted

The Web sites listed below provide information on coordinate systems, map projections, and datums. It is also recommended to search the Web for other useful sites. • What is the Projection Engine? 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 European Petroleum Survey Group’s (EPSG) coordinate system model. The Projec… • Select the correct geographic (datum) transformation when projecting between datums It is necessary to specify a geographic (datum) transformation when using the ArcToolBox Project Wizard (ArcGIS version 8.x) or Project Tool (ArcGIS version 9.x) to project shapefiles or geodatabase feature classes between different geographic coo… • What do the terms geoid, ellipsoid, spheroid and datum mean, and how are they related? The geoid is defined as the surface of the earth’s gravity field, which is approximately the same as mean sea level. It is perpend