Linear Dimension (Single)

The Linear Dimension (Single) command, in eCADSTAR PCB Editor, allows you to add a single linear dimension line to the drawing layer of the active layer. This is illustrated in the following example. You can change the properties of the dimension line by selecting it on the canvas, and then editing the settings in the Properties panel. To change the dimension value and the position of the dimension line, set Edit dimension to ON, and then drag the dimension line on the canvas. Launch this command by clicking Draw > Linear Dimension > Single on the ribbon in eCADSTAR PCB Editor. Alternatively, click Home > Dimension > Add > Single. This command is only available in 2D View mode.

Note
View dimension lines on the canvas as follows.

In the Layer Settings panel, select Visible drawing layer in the Drawing layer section. To display this column in the Layer View table, select Show in grid in the Drawing layer section.
For the relevant layer in the Layer Settings panel, Layer name column, select theVisible drawing layer check box.

Command dialog

Dimension direction

Value	Description
Horizontal/Vertical	Automatically determines the dimension line direction (Horizontal/Vertical) from the mouse position.
Horizontal	Inputs dimension lines in the horizontal direction.
Vertical	Inputs dimension lines in the vertical direction.
2 points	Inputs dimension lines in parallel to the specified points.

Arrow direction

Value	Description
Inward	The direction of the arrow is inward.
Outward	The direction of the arrow is outward.

Aux line at start point

Value	Description
ON	An auxiliary line is displayed on the start point side.
OFF	No auxiliary line is displayed on the start point side.

Aux line at end point

Value	Description
ON	An auxiliary line is displayed on the end point side.
OFF	No auxiliary line is displayed on the end point side.

Arrow type

Value	Description
No arrow	The arrow type at the start point is set to no arrow.
Circular arrow	The arrow type at the start point is set to circular.
Closed arrow	The arrow type at the start point is set to closed.
Open arrow	The arrow type at the start point is set to open.

Dimension text attributes

Value	Description
Settings	Specify the attributes for dimension text in the Design Settings dialog. By default, drawing layers are set to No Width in the Layer Settings panel. In order to change the width of lines used for dimension text, this setting must be changed to Width, as follows: For the relevant layer in the Layer Settings panel, Layer name column, click the View drawing style cell. The Drawing layer section is displayed. In the Drawing layer section, select Width.

Value

Description

Settings

Specify the attributes for dimension text in the Design Settings dialog. By default, drawing layers are set to No Width in the Layer Settings panel. In order to change the width of lines used for dimension text, this setting must be changed to Width, as follows:

For the relevant layer in the Layer Settings panel, Layer name column, click the View drawing style cell. The Drawing layer section is displayed.
In the Drawing layer section, select Width.

Tolerance text

Value	Description
ON	Positive and negative manufacturing tolerances are displayed on the canvas for dimension lines that you add using a dimension command. This is illustrated in the following example. The Positive Tolerance and Negative Tolerance fields are made available. The values that you specify in these fields are displayed in the relevant dialog for every dimension command.
OFF	Tolerances are not displayed on the canvas for dimension lines. The Positive Tolerance and Negative Tolerance fields are made unavailable.

Value

Description

Positive and negative manufacturing tolerances are displayed on the canvas for dimension lines that you add using a dimension command. This is illustrated in the following example.

The Positive Tolerance and Negative Tolerance fields are made available. The values that you specify in these fields are displayed in the relevant dialog for every dimension command.

OFF

Tolerances are not displayed on the canvas for dimension lines. The Positive Tolerance and Negative Tolerance fields are made unavailable.

Note
If you change the units in a design, the tolerances that you specify are not changed.

Positive Tolerance

Value	Description
Real number greater than or equal to 0.	Specify the positive tolerance for all dimension lines that you add using a dimension command. The value that you specify is displayed on the canvas, with a "+" prefix. It is displayed after the dimension value.

Negative Tolerance

Value	Description
Real number greater than or equal to 0.	Specify the negative tolerance for all dimension lines. The value that you specify is displayed on the canvas, with a "-" prefix. It is displayed after the dimension value.

Edit dimension

Value	Description
ON	Allows you to change the dimension value and the position of any dimension line that you select on the canvas.
OFF	You cannot edit dimension lines that you select on the canvas.