Beginner Question How to change the dynamic block properties in AutoLisp

[chen.jing735828]

I am pretty new in autolisp. what I want to do is to use insert command to insert a dynamic block to my drawing let's say
(command "_INSERT" "C:\\dynamic_block.dwg" insert_point 1 1 0 )

it has a property (attribute) called "length", then how to capture the block and set its properties length in my AutoLisp code?

Thank you in advance for your help.

[BlackBox]

Check your ATTDIA + ATTREQ sysvar values, as these will allow you to supply values.


Cheers

[chen.jing735828]

Check your ATTDIA + ATTREQ sysvar values, as these will allow you to supply values.


Cheers

Thanks for replying, can you show me a more detailed step? specific commands that can capture the block and set its att value?

[BlackBox]

Thanks for replying, can you show me a more detailed step? specific commands that can capture the block and set its att value?

When ATTDIA == 0, the INSERT Command issues prompts at the Command Line, instead of using a dialog, which means you can supply desired values to the INSERT Command.

When ATTREQ == 1, the prompts for Attribute values is turned on (or dialog is shown, depending on ATTDIA value).


With that understanding... If you want a LISP routine to do this for you, store the original values of ATTDIA & ATTREQ, set them accordingly, invoke the INSERT Command, supply the necessary parameters to successfully insert, and populate the attribute(s), and finally restore the original ATTDIA & ATTREQ values.


Cheers

[dgorsman]

Dynamic blocks have both properties and attributes. Are you wanting to change an attribute named "Length" or are you wanting to change a length dynamic property? Or both?

[chen.jing735828]

Dynamic blocks have both properties and attributes. Are you wanting to change an attribute named "Length" or are you wanting to change a length dynamic property? Or both?

Sorry for the confusion, Actually both. but Firstly I want to understand how to change the *** length dynamic property***

[chen.jing735828]

When ATTDIA == 0, the INSERT Command issues prompts at the Command Line, instead of using a dialog, which means you can supply desired values to the INSERT Command.

When ATTREQ == 1, the prompts for Attribute values is turned on (or dialog is shown, depending on ATTDIA value).


With that understanding... If you want a LISP routine to do this for you, store the original values of ATTDIA & ATTREQ, set them accordingly, invoke the INSERT Command, supply the necessary parameters to successfully insert, and populate the attribute(s), and finally restore the original ATTDIA & ATTREQ values.


Cheers

wow, It worked, Thanks for that, but what about changing the dynamic properties of the block I am inserting, (eg. stretch the length of a rectangle) Do you have any ideas about that?

[BIG-AL]

Go to www.lee-mac.com he has a dynamic block lisp, so insert block at original scale which I take would be 1 then just update the dynamic block using Lee's code.