topic Re: Using a field to have text show its own elevation in AutoCAD Forum

Using a field to have text show its own elevation

Anonymous — Tue, 22 Dec 2015 17:22:03 GMT

Is it possible to have a field in a text/mtext entity reference its own elevation, we'd like to use this for labeling contours in drawings that aren't utilizing Civil 3D. In theory it seems like it would work but I don't know how or if one can manually edit the field.

Re: Using a field to have text show its own elevation

pendean — Tue, 22 Dec 2015 17:30:43 GMT

It can't reference itself, you need an object point. Or C3D as you observed.

Re: Using a field to have text show its own elevation

3wood — Wed, 23 Dec 2015 11:54:00 GMT

There were some discussions in the forum, for example this one:

http://forums.autodesk.com/t5/visual-lisp-autolisp-and-general/label-contour-2d-plines-from-elevation/td-p/4640383/highlight/true

I think you can do further search and get more interesting ideas from there.

Re: Using a field to have text show its own elevation

scot-65 — Wed, 23 Dec 2015 21:37:41 GMT

The text object is placed at the desired elevation would work
as DXF 10 has such information (z-axis).

The trick is to be able to have the field find that particular text
object and extract the z-axis and apply to it's text value.

I do not have enough knowledge on how fields work to be
able to help further. If a field can identify extended data,
maybe inject one into the text object?

???

Re: Using a field to have text show its own elevation

Anonymous — Thu, 23 Apr 2020 01:55:07 GMT

In case anyone else tried to figure this out.

Add a POINT to the block at relevant elevation, then you can select the point and as the Fields Object, with the Position property. This gives you the option to show the X, Y and Z positions. Select only the Z to show elevation.

Re: Using a field to have text show its own elevation

R_Tweed — Thu, 23 Apr 2020 02:27:16 GMT

@Anonymous is correct. I've attached a few examples for you. spot elevation, existing contour label. Something to start with and to show the benefits of a block. See the align action on the contour tag.