undo erase command by lisp

[wimal]

(command"undo""1""")

Above code correctly function to undo LINE command. But not working with ERASE command.

How can I get back erased items from LISP.

[Lee Mac]

You could use the OOPS command.

[wimal]

oops can use only for one item. 

[dlanorh]

20 hours ago, wimal said:

(command"undo""1""")

Above code correctly function to undo LINE command. But not working with ERASE command.

How can I get back erased items from LISP.

 

 

On my system it does work for erase, so as context is everything; you need to show us the lisp where you want to undo an erase, which begs the question why are you erasing something you don't want erased.

[rlx]

maybe better use copy (cut) / paste with base point. At one time you make a selection so copy it with base point 0,0 and when you're done paste it back at 0,0. But as dlanorh states , without some code or more info about why you need this hard to give a tip...

Edited July 26, 2019 by rlx

[wimal]

In my code erase several blocks and relapse with some other blocks with different scale .

But if user select incorrect scale or block name he has to undo this activities.

for this reason I need to undo the previously erased function.

Edited July 26, 2019 by wimal

[dlanorh]

1 minute ago, wimal said:

In my code erase several blocks and relapse with some other blocks with different scale .

But if user select incorrect scale or block name he has to undo this activities.

for this reason I need to undo the previously erase function.

 

You need to set undo group marks in your lisp.

[wimal]

I am not familiar  with undo group marks

[wimal]

54 minutes ago, rlx said:

maybe better use copy (cut) / paste with base point. At one time you make a selection so copy it with base point 0,0 and when you're done paste it back at 0,0. But as dlanorh states , without some code or more info about why you need this hard to give a tip...

Good idea.

[rlx]

here's a good place to start :

https://www.afralisp.net/archive/methods/lista/startundomark_method.htm

Edited July 26, 2019 by rlx