Change Grab with degrees slider

Grasshopper Kangaroo
1

hi,
Im learning GH and i have a problem to (change)switch from grab to a number slider (degrees 0-90).
Can anyone help me?
Thank you!:wink:

capture_test_00
capture_test_001225×815 52.9 KB
capture_test_01
capture_test_011295×771 87.2 KB
test_mechanical_assembly.gh (19.3 KB)

2

Grab is not intended as a precise tool - more just a way of quickly interacting.
If you know you want to move a point exactly along a predefined arc by a certain number of degrees, I would recommend using an Anchor. You can set the initial location of the point as P, and the Target position as T (which you can set as a rotation in Grasshopper, with an amount controlled by a number input or a slider).

3

Hi, Daniel
Thanks for your explanation.
I try this before, without success. Also i try to put Brep 1 as geometry to rotate but didnt work.
What im doing wrong?

capture_test_02
capture_test_02943×892 81.7 KB
capture_test_03
capture_test_031225×815 55.2 KB

4

You need to rotate the point.
The ‘Point’ input of the anchor is the initial location.
The ‘Target’ input is where you want it to go - i.e. the rotated point.

5

hi,
I followed your instructions. I put also the plane of rotation.
The point is moving in the right direction but not the whole geometry!?
Why? Do I need to add some more command?

capture_test_04
capture_test_04947×1030 91.5 KB
capture_test_05
capture_test_051225×815 53.6 KB

6

You didn’t internalise your Rhino geometry, so I can’t see your file.
In your screenshot though I can see you are still not moving the target point
rotate.gh (10.2 KB)

image
image781×444 48.8 KB

7

hi,
Works!
Thanks for your patience.
I learned a lot.:slight_smile: