Creating a LISP for the first time, no clue what to do.

[Anonymous]

Morning, 

I've never created a LISP before just want to see if its possible to make my process a lot quicker.

I am scaling a thousands of 3D polylines down by x amount (0.99)
I would offset them but that would be a whole new issue i found.

So basically i need to create a lisp that will scale each selected 3d polyline by 0.99 or X amount by the centre of the polyline?

is this possible?

Thank you.

[ВeekeeCZ]

Welcome to the community!

The first of all, post some dwg sample (and always will in the future)
The second.. what do you mean by "centre"... how it's calculated? (it may be obvious from the sample)

[Kent1Cooper · Accepted solution]

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@Anonymous.reed wrote:

.... i need to create a lisp that will scale each selected 3d polyline by 0.99 or X amount by the centre of the polyline?

is this possible?

....

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Yes.  No need to post a drawing.  Try ScaleAboutCenters.lsp with its SAC command, available here.

[Anonymous]

Thank you,

I shall do in the future.

The centre..the middle of the closed 3D polyline (attached a screen shot)

As you can see i have lots of different shapes that i want to scale down at their individual locations rather than a 'select all' and scale.

I hope this helps.

[Anonymous]

THANK YOU SO MUCH!!!