WANTED : extrim.lsp or (etrim) function

1LandSurveyor · November 2021

I want to be able to use extrim programatically like :

(etrim <ename> <point>)

The function is not found even though i have ExpressTools installed.

I found this : extrim.lsp
but won't function in my Bricscad V21 since it cannot find another missing function (BNS_TRUNCATE_2_VIEW)...

ALANH · November 2021

There is a version of express tools for Bricscad it may have a different extrim.lsp

Look at cookie-cutter.lsp also.

Torsten Moses · November 2021

Hello,
that "BNS_TRUNCATE_2_VIEW" function is part of ExpressTools, so you need to install the ExpressTools for BricsCAD as well (in appropriate version); then your extrim.lsp should work (?)
many greetings !

David Waight · November 2021

You can give this one a try and see if it works for you.
https://b-k-g.nl/bkg_extrim.html

1LandSurveyor · November 2021

@ALANH, @Torsten Moses , I do have Express tools installed and no luck; neither etrim, nor BNS_TRUNCATE_2_VIEW are found functions. Do you get the lisp to work? I can't...

@David Waight, Thanks, but this is a licenced app which annoyingly prints a voucher. It is thence not suitable for my office.

I guess i'll have to modify CookieCutter myself to get my own silent function...
(which i knew of, yes, but who does not perform without active user input)

1LandSurveyor · November 2021

@ALANH, @Torsten Moses , I do have Express tools installed and no luck; neither etrim, nor BNS_TRUNCATE_2_VIEW are found functions. Do you get the lisp to work? I can't...

@David Waight, Thanks, but this is a licenced app which annoyingly prints a voucher. It is thence not suitable for my office.

I guess i'll have to modify CookieCutter myself to get my own silent function...
(which i knew of, yes, but who does not perform without active user input)

Roy Klein Gebbinck · November 2021

@David Waight, Thanks, but this is a licenced app which annoyingly prints a voucher. It is thence not suitable for my office.

I am the author of that application. It is a free application that certainly does not print a "voucher" (whatever that means).

Roy Klein Gebbinck · November 2021

I tried to edit my previous post. But that is no longer possible for some reason.

Tom Foster · November 2021

Roy, https://forum.bricsys.com/discussion/37151/cant-edit#latest

1LandSurveyor · November 2021

@Roy Klein Gebbinck said:

@David Waight, Thanks, but this is a licenced app which annoyingly prints a voucher. It is thence not suitable for my office.

I am the author of that application. It is a free application that certainly does not print a "voucher" (whatever that means).

Every time the lisp is loaded, I get :

BKG_Extrim - Program version 20141027 
Copyright (c) 2011-2014 Roy Klein Gebbinck - All rights reserved 
Use: BKG_Extrim or BXTR

Since all our office tools are loaded from ON_DOC_LOAD.lsp, so at every drawing, this is annoying...

Again, since i am trying to use the etrim function inside another automation function, i can't use this.

But it works great, no offense to your skills!

1LandSurveyor · November 2021

So i came up with this simple solution :

    ; Say you drew some regular 2D entities (lines, polylines and hatches) and a cutting line entity over these
(defun c:TrimTest (/ DrawnedInfLine SidePt offsetename offsetPts1 offsetPts2 )
    (setq DrawnedInfLine (car (entsel "Pick the cutting line :")))
    (while (= SidePt nil) (setq SidePt (getpoint "On which side do you want to cut?")))

    ;(etrim DrawnedInfLine SidePt) would have been nice here and i would have been over for this part...

    (vl-cmdf "._Offset" (/ (getvar "VIEWSIZE") 75.0) DrawnedInfLine SidePt "_exit")
    (setq   offsetename (entlast)
            offsetPts1 (trans (cdr (assoc 10 (entget offsetename))) offsetename 1)
            offsetPts2 (trans (cdr (assoc 11 (entget offsetename))) offsetename 1)
        )
    (command "_.Trim" DrawnedInfLine "" "_Fence" offsetPts1 offsetPts2 "" "")

    (entdel DrawnedInfLine)
    (entdel offsetename)
)

Which works great on most of my attemps. But for some reason, on some attempts, there will always be 1 or 2 lines that are not trimmed... and i don't know why.

It may be related to the use of a fence in the Trim command?

Thoughts?

1LandSurveyor · November 2021

It seems to be related with the linetypes! Using a fence crossing a visible hole in a dashed linetype will not trim this line.
I'm in contact with Support to find a solution.

Roy Klein Gebbinck · November 2021

That's pretty much AutoCAD compatible behavior. Seems unlikely that BricsCAD will change it.

Jason Bourhill · November 2021

@Roy Klein Gebbinck said:
That's pretty much AutoCAD compatible behavior. Seems unlikely that BricsCAD will change it.

Actually, recent versions of AutoCAD introduced a new variable to control how selection in gaps behave.
AutoCAD 2018 Help: LTGAPSELECTION (System Variable)
help.autodesk.com/view/ACD/2018/ENU/index.html?guid=GUID-C3816CB5-ED9D-4F7B-8F1A-C974E17D0FF7

Regards,
Jason Bourhill
BricsCAD V22 Ultimate
CAD Concepts

Jason Bourhill · November 2021

@1LandSurveyor said:
It seems to be related with the linetypes! Using a fence crossing a visible hole in a dashed linetype will not trim this line.
I'm in contact with Support to find a solution.

A workaround would be to temporarily change the LTSCALE to a large number, which would essentially make the linetype appear as continuous. Alternatively, assuming you have MSLTSCALE = 1, you could simply change your Annotation Scale on the status bar to give a similar effect.

Regards,
Jason Bourhill
BricsCAD V22 Ultimate
CAD Concepts

Jason Bourhill · November 2021

@1LandSurveyor said:

Every time the lisp is loaded, I get :
BKG_Extrim - Program version 20141027 
Copyright (c) 2011-2014 Roy Klein Gebbinck - All rights reserved 
Use: BKG_Extrim or BXTR 
Since all our office tools are loaded from ON_DOC_LOAD.lsp, so at every drawing, this is annoying...

This wouldn't occur if you used AUTOLOAD instead of LOAD in your on_doc_load.lsp

e.g.
(autoload "BKG_Extrim.des" '("BKG_Extrim" "BXTR"))

You will still see the messaging, but only when the command is invoked for the first time.

Regards,
Jason Bourhill
BricsCAD V22 Ultimate
CAD Concepts

Roy Klein Gebbinck · November 2021

@Jason Bourhill said:
Actually, recent versions of AutoCAD introduced a new variable to control how selection in gaps behave.
AutoCAD 2018 Help: LTGAPSELECTION (System Variable)

Thanks. Good to know. This means that BricsCAD can do the same.

1LandSurveyor · November 2021

@Jason Bourhill said:

@Roy Klein Gebbinck said:
That's pretty much AutoCAD compatible behavior. Seems unlikely that BricsCAD will change it.

Actually, recent versions of AutoCAD introduced a new variable to control how selection in gaps behave.
AutoCAD 2018 Help: LTGAPSELECTION (System Variable)
help.autodesk.com/view/ACD/2018/ENU/index.html?guid=GUID-C3816CB5-ED9D-4F7B-8F1A-C974E17D0FF7

Regards,
Jason Bourhill
BricsCAD V22 Ultimate
CAD Concepts

Yes! LTGAPSELECTION totally solve that problem.
Now i just need to wait for a HATCHGAPSELECTION variable... Non-solid hatches have the same problem.

@Jason Bourhill said:

@1LandSurveyor said:

...

This wouldn't occur if you used AUTOLOAD instead of LOAD in your on_doc_load.lsp

e.g.
(autoload "BKG_Extrim.des" '("BKG_Extrim" "BXTR"))

You will still see the messaging, but only when the command is invoked for the first time.

Regards,
Jason Bourhill
BricsCAD V22 Ultimate
CAD Concepts

Good idea, that's right! but still... i cannot use it from within another LISP.

WANTED : extrim.lsp or (etrim) function

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