Add the TM Slope Guide

Available with Defense Mapping license.

The TM slope guide shows the percentage of slope based on the map scale and contour interval.

TM Slope Guide

When updating dynamically, the slope guide searches for the following feature classes in the associated map frame when setting the Layer source property:

  • TLM10_Index
  • TLM25_Index
  • TLM50_Index
  • TLM100_Index
  • TLM250_Index
  • TM10_Index
  • TM25_Index
  • TM50_Index
  • TM100_Index
  • TM250_Index

The following field names need to be present in the layer source when setting the Contour Field property: Contour_Interval and ContourInterval

A warning message will appear in the Format Slope Guide pane and the slope guide will not be drawn in the layout if invalid element properties are present. For example, if the map scale exceeds 1:250,000.

Format Slope Guide pane with warning message

Invalid element properties include, but are not limited to, the following:

  • Missing map frame
  • Invalid map scale (scales up to 1:250.000 are supported)
  • Invalid contour interval less than 1 m or larger than 200 m
  • Missing contour field in the index table when updating automatically
  • Invalid or null interval value in the index table when updating automatically

Insert a slope guide

Before inserting a slope guide, verify that the associated map frame is active.


TM Slope Guide is a supported element for import from ArcMap documents in ArcGIS Pro 2.4.

For more information, see Import an ArcMap document with surround elements.
  1. Verify that the map is in layout view.

    If you don't have a layout set up for your project, see Add a layout to your project.

  2. Click the Insert tab.
  3. Click Additional Surrounds and choose Slope Guide in the Topographic group.
  4. Click an insertion point in the selected layout to place the new slope guide.

    The slope guide is added to the layout at the insertion point and remains selected.

  5. Optionally place the pointer over the selected slope guide until the move pointer appears and drag it to a new location.
  6. Optionally double-click the slope guide to open the Format Slope Guide pane.

    The Format Slope Guide pane appears with the Options tab visible.

    The Update Dynamically check box is checked by default. When checked, the slope guide updates dynamically based on the current map scale and a field in a polygon feature class that contains the Contour Field.

    Only one warning is shown at a time. If there is more than one invalid element, each warning is shown in turn until resolved.

  7. Optionally choose a new map frame from the Map frame drop-down list.

    If there are multiple map frames present in the project, the slope guide automatically picks the first one with a scale larger than 1:250.000. If there is no slope guide with a valid scale, it will pick any map frame.

Set Slope Guide options

To set options in the slope guide, complete the following steps:

  1. In the Slope Guide section, uncheck the Update Dynamically check box to specify the scale and contour interval manually within the following limitations:

    • The scale cannot exceed 250,000.

      You can set the map scale at the lower left of the Layout tab.

    • The contour interval cannot exceed 200.

  2. Optionally specify other element options in the General section as follows:

    • Name—The name of the slope guide element as it appears in the Contents pane. The name must be unique.
    • Visible—Check or uncheck this check box to display or hide, respectively, the slope guide.
    • Locked—Check this check box to prevent changes to the slope guide in the layout.

  3. Optionally click the Layer source drop-down arrow to change the data source.