Describe 5 major functions used in ArcMap and ArcCatolog, respectively. List and

Question

Describe 5 major functions used in ArcMap and ArcCatolog, respectively. List and describe each function) Describe at least four functions (tools) of ArcToolbox. List and describe each function Describe the major methods of GIS data input; describe the needs for GIS data editing. Draw a diagram to illustrate three topological relationships as below Connectivity - arcs connect each other at nodes Area definition - area defined by a series of connected arcs Contiguity - arcs have directions and left & right polygons

Explanation / Answer

The functions in ArcMap and Arc Catelog are

1. Clip - Extracts or excludes an area in a raster according to a set of extents. 2. Band Arithmetic - Performs an arithmetic operation on the bands of a raster dataset. 3. Complex - Computes magnitude from complex values. 4. Raster Info - Modifies properties of the raster, such as bit depth. 5. Slope - Calculates the rate of change of elevation for each DEM cell.

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