Help Center

Managing display of line weight on the screen

Line weight (width) is a width assigned to graphic primitives. Line weight allows to get thin and thick lines when creating a drawing.

Line weight is differently displayed in paper space and in model space.

Displaying in model space:

Line of a 1 pixel width corresponds to 0 line weight in model space. Display widths in pixels of other line weights are set proportionally to their values and do not depend on zooming in or out on the screen. For example, if a line weight is 4 pixels, primitives having such line weight are displayed with 4 pixel width on the screen, even though they are zoomed in.

Displaying in paper space:

Displayed in paper space line width of primitives is always the same as their line weights. That is why when a paper space list is zoomed, displayed width of primitives is changed.


To turn on/off display of line weights on the screen use the SW in the status bar.

Primitives having a width more than one pixel increase a regeneration time of drawing; productivity of program decreases if display of line weights is on. It is recommended to switch off the display of line weights. It does not affect displaying line weights (widths) when you print a drawing.

You can change a scale of line weights display for primitives in model space.


Lineweight Settings Dialog

CAD drafting Managing display of line weight on the screen 0    Menu: Format – CAD software Managing display of line weight on the screen 1 Line weight…

CAD drawing Managing display of line weight on the screen 2    Status bar: Context menu of the SW button CAD drafting Managing display of line weight on the screen 3 Settings…

CAD software Managing display of line weight on the screen 4 Command Line:LINEWEIGHT

The command opens the Lineweight Settings dialog box to set the lineweight current value and measurement units, to control the lineweights display and scale, as well as to select the Default lineweight value for layers.

CAD drawing Managing display of line weight on the screen 5


Current Lineweight

List of standard lineweights.

Select from list of standard lineweights or special values By Layer, By Block or By Default. By Default value is defined by LWDEFAULT system variable. For all new layers lineweight is set By Default.


Millimiters (mm)

Sets lineweight units to millimiters.

Inches (in)

Sets lineweight units to inches.



Display Lineweight

Switches On/Off displaing lines according their linewegnts.

By Default

Sets By Default value for new layers (LWDEFAULT system variable).

Adjust Display Scale

Sets lineweight display scale in Model space (LWDISPLAY system variable). LWDISPLAY = 0 switch off show lineweight and LWDISPLAY = 1 is real–unit value .


NOTE: Using lineweight width that is more than one pixel may slow down performance on display regeneration. To speedup work in Model space you can decrease Adjust Display Scale setting or switch off Display Lineweight. Lineweights are always plotted at their real value whether their display is turned on or off.


Info: NanoCAD is an easy-to-use, cheap, and yet powerful, CAD platform for PC, that delivers a great user experience by providing top-level performance, full capability, a classic interface and native.dwg format support. nanoCAD has been built to deliver design and project documentation for all industries. nanoCAD includes a full suite of basic and advanced CAD tools for 2D/3D design and creating industry-standard DWG-compatible CAD files. Our freeware provides progressive, collaborative and customizable features to raise your efficiency, and includes several API's, allowing anything from routine task automation to complex CAD app development. You may download nanoCad for free, using the links below, and buy later, in case you like it.
We collect Cookies
We use cookies to ensure that we give you the best experience on our website. By clicking “Accept”, you agree to our website’s cookie use as described in our Privacy Statement.