Evaluate point doesn't label with cplane coordinates

Rhino Rhino for Windows
1

@pascal
I’m ashamed to say I’ve not used this command and its label function in any serious endeavor in all my years of Rhinoing. Now I need it and notice it doesn’t label with the cplane coordinates, but rather with world coordinates only. I need it to evaluate and label with the current cplane coordinates.

Is there some hidden setting I’m missing?

v5, last update.

Thank you for any tips.

2

Bueller?

This help file page says “The EvaluatePt command reports and optionally labels the world and construction plane coordinates of a selected location in space.”

http://docs.mcneel.com/rhino/5/help/en-us/commands/evaluatept.htm

I have never seen this option.
I have custom cplanes that are no where near the world planes.

3

Hi,

The CPlane coordinates will show up in the command line,
As a workaround, you can copy that value, select the Label, go to
Properties, Dot, and paste it in the Display Text field,

evaluatept
evaluatept.PNG1874×955 339 KB

4

yup, got that that, done that. Not a solution for doing hundreds of points.

5

Hi - I filed this issue as RH-51249.
Thanks for reporting!

6

Thanks Wim. I’m assuming there will be no fix coming for v5.
Does this function label the cplane coordinates in v6?

7

Hi - No, this doesn’t work as advertised on RH6 either.
Since this fix requires a change to the UI, I wouldn’t expect this to happen before Rhino 7.

8

Meanwhile you can use a simple python script like this:

import rhinoscriptsyntax as rs
import Rhino.Geometry as rg
world = rs.GetPoint("Point to evaluate")
orient = rg.Transform.ChangeBasis(rg.Plane.WorldXY, rs.ViewCPlane())
cplane = rg.Point3d(world)
cplane.Transform(orient)
cplane = rg.Point3d(round(cplane.X,2),round(cplane.Y,2),round(cplane.Z,2))
rs.AddTextDot(cplane, world)

carvecream.py (331 Bytes)

1 Like
9

ah shoo. Seemed like maybe a command line switch would handle it instead of a major UI thing.

10

Thank you Mahdiyar, will try this out today.

11

@Mahdiyar This works well, thank you! Anyway to make it label with text leader instead of dot?

12

You can use rs.AddLeader like this:

import rhinoscriptsyntax as rs
import Rhino.Geometry as rg
world = rs.GetPoint("Point to evaluate")
orient = rg.Transform.ChangeBasis(rg.Plane.WorldXY, rs.ViewCPlane())
cplane = rg.Point3d(world)
cplane.Transform(orient)
cplane = rg.Point3d(round(cplane.X,2),round(cplane.Y,2),round(cplane.Z,2))
rs.AddLeader([cplane,cplane+rg.Point3d(1,1,1)], None, cplane)

carvecream.py (364 Bytes)

13

Works better as dots. The leader is problematic as a straight line, also it projects to the cplane.
Would be cool if the leader behaved like the leader in the built-in Evaluatept command.

I suspect there’s a way to make that happen in that last line, but my python translator is not working.