Creating Double Lines

The Double Line tool creates a wide variety of constrained and unconstrained double lines. Set the width between the double lines, the offset from the cursor, and whether to create components between the double lines.

 

To create double lines:

1.	Click the Double Line tool from the Basic palette.

2.	Click either the Constrained Double Line or the Unconstrained Double Line mode button.

Constrained lines are drawn at 30¡, 45¡, and 90¡ angles, and their complements are drawn in increments of 30¡, and 45¡.

Unconstrained lines can be drawn at any angle.

Press and hold the Shift key while drawing a line in Unconstrained mode to snap the line to predetermined angles.

3.	Click the desired Offset mode button to specify the offset method.

 

Offset Mode	Description
Top Control Line	Cursor creates the right line
Center Control Line	Lines are equidistant from the line drawn by the cursor
Bottom Control Line	Cursor creates the left line
Custom Control Line	Specify an offset value from the line drawn by the cursor

4.	Click Double Line Preferences and set the preferences.

Parameter	Description
Separation	Distance between the double lines
Control Offset	For Custom Control line mode, enter the distance from the top/right line of the cursor
Create Lines	Creates parallel lines
Create Polygons	Creates a double-line polygon with closed ends
Create Lines and Polygons	Creates parallel lines with a polygon between them; the polygon has a line weight of zero
Components	Click to define components between the double lines (see Applying Components Between Double Lines)

5.	Click OK to accept the changes.

6.	Click at the double line’s start point.

7.	Click at the double line’s end point.

Applying Components Between Double Lines

To apply a component between the double lines:

1.	In the Double Line Preferences dialog box, click Components.

The Components dialog box opens.

 

Parameter	Description
Preview	Displays a preview of the components between the double lines, including the defined components; the preview is drawn from left to right, so the “top” of the preview, by default, indicates the left part of the double lines as they will be drawn. The arrow shows the drawing direction.
Overall Thickness	The thickness of the double line with components is defined by the sum of the component thicknesses
Components	Lists the components that form the structure of the double line, in order from left to right as displayed in the preview. To change the order of a component, click and drag within the # column.
New	Click to define the components between the double lines; see Creating Wall Components
Edit	Opens the Component Attributes dialog box to edit the selected component’s thickness and attributes (you can also double-click on a component to open the Component Attributes dialog box)
Delete	Deletes the selected component; the double line thickness is adjusted accordingly

2.	When the components have been defined, click OK.