Line shapefiles are usually uploaded to studies as centerlines that represent a stream system for a study (see Chapter 5, Section 5.3). User-editable line shapefile display properties include Style and Labels.
To edit line shapefile style properties:
- From the Content Pane with the Maps tab selected, right-click on the name of a line shapefile (*.shp).
From the shortcut menu, click Properties. The Edit Line Properties dialog box appears.

- From the Draw Features using list, One Style is the default. This option applies style properties to all of selected shapefile.
- From the Color list, select the display color of the line shapefile
- From the Style list, select the line style of the shapefile.
- From the Weight, select the desired weight (thickness) of the line.
- Users can also edit features of a line shapefile by attribute:
From the Draw Features using list, select Attribute Values.

- From the Field for values list, select the name of the shapefile attribute that represents separate lines. Stream_ID has been selected for the shapefile StPaulStreamAlignment.shp.
- Select the desired line style from the Style list.
- Select desired line weight (thickness) from the Weight list.
- Select a Start color and an End color. HEC-FIA automatically fills in a gradation in between the two colors.
- When the desired changes have been made, click Apply and the changes display in the map window. When finished editing, click OK to close the dialog box.
Users can display labels for attributes of line shapefiles and edit the way they display in the map window.
To edit label properties for line shapefiles:
- From the Content Pane with the Maps tab selected, right-click on the name of a line shapefile (*.shp).
- From the shortcut menu, click Properties. The Edit Line Properties dialog box appears.
Select the Labels tab.

- From the Label features using list, select the name of the shapefile attribute that represents the labels for separate lines. Stream_ID has been selected for the shapefile StPaulStreamAlignment.shp.
- From the Font list select the desired font for labels, select whether to make the labels bold or italicized, and the Size slider adjusts the font size for labels. From the Placement box, the user can adjust the placement of labels and rotate labeled.
- Click Apply to display changes in the map window and keep editing.
- When finished editing, click OK to close the Edit Line Properties dialog box.