Question

An ArcGIS user is working in the field collecting elevation values along a hiking trail. What must be done when creating the trail feature class to store the elevation values?

A. set the tolerance to greater than .001 B. add a field called Elevation and make the geometry type Double
C. assign the feature class a projected coordinate system in units of meters
D. make the feature class z-enabled

Answer 1

When creating a trail feature class to store elevation values in ArcGIS, the user needs to set the tolerance, add a field for elevation, and make the feature class z-enabled.

Step-by-step explanation:

When creating the trail feature class to store the elevation values in ArcGIS, the user needs to:

1. Set the tolerance to greater than .001: This ensures that the elevation values are accurately stored and maintained.
2. Add a field called Elevation and make the geometry type Double: This allows the user to store the elevation values in a separate field and ensures that the values are stored as decimal numbers.
3. Make the feature class z-enabled: This enables the storage and analysis of the elevation values in the feature class, allowing for three-dimensional analysis and visualization.

Additionally, assigning the feature class a projected coordinate system in units of meters can help ensure consistency and accuracy in the elevation measurements.