[LISP] How to read text size in a dimension?

[iBlachu]

How to read the height of the text in the dimension selected by the user?

I would like the user to indicate the dimension line and the program to read the text height set in it.

[ВeekeeCZ]

Maybe it's about time to teach yourself how to find such information.

Start with (dumpallproperties (car (entsel)))

Then you have set/getpropertyvalue functions.

Easy-peasy.

[iBlachu]

Not quite, because in the DXF code of the dimension there is no information about the height of the dimension text, only about the style of the dimension.

[ВeekeeCZ]

Then use nentsel instead.

[paullimapa]

of course there is...try:

(getpropertyvalue (car(entsel)) "dimtxt")

[iBlachu]

And is it possible to read the size of the dimension text in the same way as the following example?

  (if (setq ss (ssget '((0 . "DIMENSION"))))
    (command "_.dimoverride" "DIMSE1" "_off" "DIMSE2" "_off" "" ss "")
  )

[Kent1Cooper]

---

@iBlachu wrote:

And is it possible to read the size of the dimension text in the same way as the following example?

  (if (setq ss (ssget '((0 . "DIMENSION"))))
    (command "_.dimoverride" "DIMSE1" "_off" "DIMSE2" "_off" "" ss "")
  )

---

No.  That's an editing command that can only impose properties.  The one command that can read properties of things is LIST, but for a Dimension its returned information doesn't include the Text height.

Besides, that code can work with a selection set of multiple Dimensions, since a property like suppression of an extension line can be imposed on more than one Dimension together.  What would you want from such a set by way of reading their Text height, if that might vary?

Your contention in Message 3, if as it seems it's in response to @ВeekeeCZ 's (dumpallproperties) suggestion rather than DXF code information, is incorrect -- see the appropriate property in Message 5.

But you are correct about DXF information -- it's quite unexpected that it does not seem to include the Text height.  If the Text Style used has a fixed height, you could get it from that.  I haven't been able to find where it is stored.