Land Desktop had a couple features for running in 3D lines and polylines. There was a toggle ".g" that allowed one to pick a point block, and the the end point would snap to the point node, with the elevation being assigned from the point elevation attribute. Also, there was a "proximity" breakline routine that would follow a 2d polyline, and assign the elevation of the nearest point. Does Carlson 2016 have any features like these?
I think, and this is from an '06 version, there was a SPLINE Autocad command. You could enter a range of points into the command line, or screen pick them.
Yes you can start a 3D polyline at any elevated object and elevate lines based on surface or by points or entities based on a proximity threshold
3DP will do what you are asking.....AS long as you draw your files on true Z value. It will also let you hand enter the elevations of the PL nodes.
Thanks, this is what I suspected. It looks like I will have to re-insert the points at true Z, if I want to avoid having to type in point numbers and/or elevations.
Apologize, spline was the wrong answer and 3DP is correct.
I could say, and maybe it was the worng approach to this, that in creating a curve with the 3DP command, using three seperate points for the curve, the 3DP utility would hold the elevations on the beginning and ending points creating a continuous grade. It would create the curve horizontally, but not take into account the z value of the midpoint.
If the curve was elevated to the points on it Carlson would hold all the points within the threshold distance. But it would make the curve a bunch of tangent sections not a real curve. Which is why I really like the draw 2d and 3D polyline
It was an older version, I think '06. But yeah, 3DP does create a three dimensional polyline.
Peter Lothian - MA ME, post: 398209, member: 4512 wrote: Thanks, this is what I suspected. It looks like I will have to re-insert the points at true Z, if I want to avoid having to type in point numbers and/or elevations.
I'll assume, then, that these aren't consecutive points, where you could just type in the range. Probably need to start collecting them as lines in the field, unless this is something completely different going on here.
