A polyline is represented by a line in a Didger project, and can have up to 256 associated attributes. Polylines are composed of straight-line segments defined by nodes and vertices.


This is a polyline object with

line properties and vertex

tolerance circles.


Drawing a Polyline

To draw a polyline:

  1. Click the Draw | Polyline command, click the button, or press CTRL+L on the keyboard to begin drawing a polyline.

  2. The cursor changes to a cross hair cursor to indicate drawing mode.

  3. Enter any information about the polyline, such as the ID, in the Property Manager.

  4. Move the cursor over the location for the start of the polyline and click the left mouse button.

  5. Move the cursor to the next position along the line and click again.

  6. Continue this procedure until you click at the final point for the line. Press the ENTER key.

  7. To end drawing mode, click on another tool button or press the ESC key on your keyboard.


Editing Polyline Properties

The polyline can be edited by clicking once on the polyline to select it.  Polyline object properties can be modified through the Property Manager. Polyline properties include:

Polyline Item Properties

Data Attributes

Line Properties

Label Properties


Default Properties

The default line properties are set by clicking the Tools | Project Settings command and clicking on the Line Properties tab.


Using a Digitizing Tablet

When using the tablet pointer to digitize a polygon,

  1. Calibrate the tablet by clicking the Draw | Tablet | Tablet Calibration command, or by clicking the image\calibrate.png button.

  2. Activate the tablet by pressing F9 on the keyboard, clicking the image\activate.png button, or clicking the Draw | Tablet | Activate Tablet command.


Drawing Tips



See Also



Spline Polyline



Digitizing Several Objects

Digitizing Several Objects with Different IDs

Digitizing Several Objects with Sequential IDs

Break Polyline 

Connect Polylines 

Polygon to Polyline

Polyline to Polygon


Snap All Polyline Segments

Polygon Markers


Object Properties