How do I change the projected coordinate system in Arcgis?
Changing the data frame’s coordinate system
- Right-click the data frame name and choose Properties to bring up the Data Frame Properties dialog box.
- Click the Coordinate System tab and navigate to the desired coordinate system for your map display.
Is GCS a map projection?
A projected coordinate system (PCS) is a GCS that has been flattened using a map projection. Your data must have a GCS before it knows where it is on earth. Projecting your data is optional, but projecting your map is not. Maps are flat, so your map must have a PCS in order to know how to draw.
What projection system does Google Earth use?
Mercator projection
Google Maps and Microsoft Virtual Earth use a Mercator projection based on the World Geodetic System (WGS) 1984 geographic coordinate system (datum).
Is the WGS 1984 Mercator included in ArcGIS?
A WGS 1984 Web Mercator projected coordinate system and the WGS 1984 Major Auxiliary Sphere geographic coordinate system are included in ArcGIS version 9.3.
Is the WGS 1984 the same as the PCs?
They both use the same projection but different projection parameters. A PCS also contains a Geographic Coordinate System! In this case, it’s WGS 1984. Remember that a PCS is just a GCS that has been projected. Let’s look at the properties of the WGS 1984 geographic coordinate system:
What are the properties of the WGS 1984 coordinate system?
Let’s look at the properties of the WGS 1984 geographic coordinate system: It has a WKID (and Authority) as well. Coordinates in a GCS are recorded in an Angular Unit, usually degrees. The Prime Meridian is an arbitrary line of longitude that is defined as 0°. It typically runs through Greenwich, England, but it doesn’t have to.
How is a projected coordinate system ( PCS ) different from a GCS?
A projected coordinate system (PCS) is a GCS that has been flattened using a map projection. Your data must have a GCS before it knows where it is on earth. Projecting your data is optional, but projecting your map is not.