Using simple offsets to create new polyline and polygon features
A simple offset is performed on a polyline or polygon and uses a specified offset distance. The offset distance can be based on an existing feature or other criteria such as distance from a the current GPS position.
Using a simple offset, you could, for example, map a line feature that is a given distance away from an existing line feature. You would then specify whether the new feature is left or right of the captured line.
- Make the target layer editable using the Start/Stop Editing tool.
- Tap the drop-down arrow to the right of the Offset Point button.
- Tap Offset Polyline/Polygon.
A red box around the Offset Polyline/Polygon button indicates that it is active.
The Poly Offset dialog box is displayed.
- Tap the left or right checkbox to determine the relative position of the
- Specify the Distance value.
- Tap OK.
- Tap the polyline—or polygon—button from the Feature Type drop-down list.
- Tap the screen where you want to begin your new feature and continue adding the
As you add vertices to your new line or polygon, a red line at the offset distance will be displayed. This is where your new feature will be created.
- Tap Proceed when you are finished capturing your new feature.
The Feature Properties dialog box is displayed.
- Enter the information for the new feature.
- Tap OK.
- Your new feature is drawn at the specified distance of 20m from the existing
Using the snapping environment with offsets: You can set the snapping options so that your reference line, or capture line, snaps to an existing feature.