What is geographic coordinate system and projected coordinate system?

What is geographic coordinate system and projected coordinate system?

A geographic coordinate system (GCS) is a reference framework that defines the locations of features on a model of the earth. A projected coordinate system (PCS) is flat. It contains a GCS, but it converts that GCS into a flat surface, using math (the projection algorithm) and other parameters.

What is the difference between projection and coordinate system?

Geographic coordinate systems are based on a spheroid and utilize angular units (degrees). Projected coordinate systems are based on a plane (the spheroid projected onto a 2D surface) and utilize linear units (feet, meters, etc.).

How to convert coordinates to state plane coordinates?

Tools are available to convert NAD83 or NAD27 geodetic positions (latitude and longitude) to State Plane Coordinates (SPC), or vice versa. NCAT incorporates many different coordinate conversion and datum transformation software programs that previously functioned independently.

How to change the coordinate system in a project?

If not, use the directions below to change the Coordinate Systems to match one another. Open Data Management Tools → Projections and Transformations → Feature → Project. The Project dialog box will appear.

When to use a transformation in projection on the fly?

Transformations are one part of the process used by the Project tool and projection on the fly. If you are converting between different geographic coordinate systems (GCS), you need to use a transformation. In the example above, the map is in a projected coordinate system (PCS).

How to transform drawing content to another coordinate system?

Under Query Mode select Draw. Click on Execute Query. Result: all objects from source DWG are copied and transformed to the current coordinate system in current DWG. In order to avoid editing the original drawing make sure to right-click on the file name in the Map Explorer then select detach.