Selecting all lines from same layer that have the same suffix

[marius.lechtenboehmer]

I have contour lines (polylines) with a precision of 0.25m. So 1.00m, 1.25m, 1.5m, 1.75m, 2.00m, 2.25m etc. They are all on the same layer. I want to select all the lines that have the suffix .00m (1.00m, 2.00m, etc.). How do I do that?

Using the quickselect feature and writing "*.00" doesn't work.

[DumR0]

Hi,

Do you mean polyline with line weight 0.25mm?

drop some .dwg

[marius.lechtenboehmer]

No. All lines have an attribute names "height". I want to select all lines from the same layer that end with .00 on the attribute "height".

[DumR0]

try find command, check boxes for atribut

[marius.lechtenboehmer]

Doesn't work. The polylines are neither blocks nor text. In the screenshot it is the attribute "Erhebung".

[DumR0]

try this but you need  map3d ore civil 3d

https://forums.autodesk.com/t5/civil-3d-forum/search-by-polyline-attribute/td-p/9604176

[ВeekeeCZ]

It's "Elevation" in English. And it cannot be done using built-in features.

If you post some sample dwg I could do some quick lisp.

[marius.lechtenboehmer]

Here's a sample of the data. A lisp would be amazing!

I also have AutoCAD Map3D available but I guess that won't help me.

[ВeekeeCZ · Accepted solution]

I don't know MAP, but C3D will definitely helps since you can set styles that differentiate contours (eg by layer)

(defun c:SelectContoursbyElevation ( / m s r i e)
  
  (if (and (or (and (ssget "_I")
		    (sssetfirst nil)
		    (setq s (ssget "_P" '((0 . "LWPOLYLINE")))))
	       (setq s (ssget '((0 . "LWPOLYLINE")))))
	   (setq r (getreal "\nRemainder after division 1: "))
	   )
    (repeat (setq i (sslength s))
      (setq e (ssname s (setq i (1- i))))
      (if (not (equal (rem (cdr (assoc 38 (entget e))) 1) r 1e-9))
	(ssdel e s))))
  (sssetfirst nil s)
  (princ)
  )

[marius.lechtenboehmer]

That is awesome! Thanks a lot. Works like a charm.

[3wood]

You can also try ELEVLAYER.

It puts objects at certain elevation to a specific layer. Then you can use layer filter to handle them in groups.