Book Image

ArcGIS for Desktop Cookbook

By : Daniela C Docan
Book Image

ArcGIS for Desktop Cookbook

By: Daniela C Docan

Overview of this book

Table of Contents (18 chapters)
ArcGIS for Desktop Cookbook
About the Author
About the Reviewers

Using annotation and masking for contours

According to the commonly used rules in a topographic map, all contour lines should be interrupted beneath the elevation information. In this recipe, you will learn how to use the geodatabase annotation to display the elevation value with a visual effect for contours.

Getting ready

In this section, you will display on a topographic map at the scale of 1:5,000 the elevation value for the contour lines and elevation points as shown in the following screenshot:

Firstly, you will create an annotation feature class that stores the point and index contour line elevation. Secondly, you will use the Feature Outline Masks tool by navigating to ArcToolbox | Cartography Tools | Masking Tools to obtain an intermediary polygon feature class that contains the mask (a polygon created around the text) for the annotations. Finally, based on the mask layer, you will create a visual discontinuity for index contour lines in accordance with the position of the annotation...