topic Re: Hidden line type with Flow arrow (<) in Visual LISP, AutoLISP and General Customization Forum

Hidden line type with Flow arrow (<)

sjmsme — Tue, 26 Sep 2023 17:34:23 GMT

Has anyone created this. It's a constant request from our engineers to have a hidden linetype version of all of our lines, even those with Text (ie OHU, UGU, W, etc)?

Re: Hidden line type with Flow arrow (<)

Kent1Cooper — Tue, 26 Sep 2023 18:03:42 GMT

I have this:

*ARROWSHIDDEN,- - - - > - - - - > - - - - > - - - -
A,1,-.5,1,-1,[">",ROMANS,S=1.0,R=0.0,X=-0.95237,Y=-.4285657],-.5,1,-.5,1,-.5

It requires a Text Style defined in the drawing called ROMANS which uses the ROMANS.shx font, without a fixed height.

Each dash is 1 drawing unit long at an effective linetype scale [the drawing's multiplied by the object's] of 1.

You can monkey with the relative sizes of the dashes [positive numbers] and gaps [negative], the number of them between arrows, etc., and use it as a basis for linetypes with other text [or shape] inclusions.

That Line is drawn from left to right. Use < instead to point the other way, or use a Rotation entry, and adjust the sizes of the gaps on either side of it to suit.

Re: Hidden line type with Flow arrow (<)

sjmsme — Tue, 26 Sep 2023 17:59:18 GMT

Kent! thank you very much!

Re: Hidden line type with Flow arrow (<)

Kent1Cooper — Tue, 26 Sep 2023 18:37:46 GMT

You're welcome. >These things are not difficult.< Other variants are possible, for example if you like your arrowheads attached to a piece of shaft, try this:

*ARROWSHIDDEN,- - - -> - - - -> - - - -> - - - -
A,1,-.5,1.5,[">",ROMANS,S=1.0,R=0.0,X=-0.95237,Y=-.4285657],-.5,1,-.5,1,-.5