Offset profiles-polylines
- Select the reference profile(s) and/or polyline(s).
- Define the offset distance:
- By dragging the Distance arrow in the graphic area.
- By entering the value in the Distance field in the graphic area or in the dialog box.
- By clicking on the Measurement
icon, in the graphic area or in the dialog box (next to the active Distance field), and taking measurements. - Enter the number of copies in the No. copies field.
- Select the Profile fill offset gaps parameter:
- Circular arc: Select this option to add arcs to fill the gaps between each offset segment of the selected profile or polyline.
- Tangent extension: Select this option to add tangent extensions to fill the gaps between each offset segment of the selected profile or polyline.
- Curve extension: Select this option to add curve extensions to fill the gaps between each offset segment of the selected profile or polyline.
- Validate, either by a Right Mouse click or by clicking the
icon in the graphic area or in the function dialog box.
Circular arc selected:
Tangent extension selected:
Curve extension selected:
Offset polyline on both sides with circular arc extensions:
Note:
- Use the Attributes toolbox to modify the created entities.
Side
Selecting the Reverse side option in the dialog box or clicking the 
icon in the graphic area allows you to create the offset on the other side of the reference element.
Selecting the Both sides option allows you to create the offset on both sides of the reference element.
Attributes
Selecting the Retain original elements option allows you to keep the reference element after validating the function. It also makes the Retain attributes option available.
Selecting the Retain attributes options allows you to apply the attributes (colour, style) from the reference element to the offset/projected element.
Top Toolbar
These two icons at the top of the dialog box allow you to Apply the current values or to Cancel the current function.
Preview generation is Automatic if this option is active in the dialog box menu accessed by clicking on the 
icon. If this option is not active, click on the 
icon. If preview generation is not possible, the icon is greyed out.
For further information...