Moving slices in proportion

vvvv beta question
1

Hi everyone,

I am currently using a Kinect to track X, Y & Z hand motions and using that to control a rope in Vvvv.

I have a linear spread on the X-Axis and a circular spread on the Y-Axis, with 100 slices each; to make a sine wave.
I have my hand movements controlling the positions of the first and last slice, but the other 98 in between remain static.

Is there a way I can change the value of each slice in proportion to the value of the first and last slices.
I want to get an effect that there is a sine wave between the hands, with the size of the sine moving in proportion to the hand movements.

If anyone can assist with this then I’d really appreciate it.
I have uploaded the patch and put IO box with Left XYZ & Right XYZ in place of where the Kinect data will come in.

Thank you

MovingWave.v4p (33.1 kB)

2

Like this?

MovingWave2.v4p (24.6 kB)

3

Wonderful, thank you so much, that’s exactly what I was after :)

I love this Vvvv community :D

4

Hey guys,

what about the Z-axis in this patch? Can’t seem to figure out how to translate, and scale it proportionally in 3D.

Thanks!

5

well add a camera with perspective and change 2d transforms on 3d transforms, then post ur patch here if u need more help

6

Thanks for the fast response antokhio!

The problem is that Points2Vector node is 2D and it doesn’t have any Z-axis input pins. I need the wave to follow both ends independently. Any ideas?

Thank you!

Modified MovingWave2D (25.5 kB)

7

there is: points2vector-(3d-vector) you can use

8

I’ve tried with points2vector-(3d-vector) but can’t seem to connect it right. Can you please help me with it?

9

sry the patch showing only black window here…

10

hmmm, not sure what could be the problem.

I’m using the 32bit 21-jul-15 build of vvvv but works fine on the 64bit also.

wave3.jpg

11

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callmenames.v4p (26.2 kB)

12

Thanks a lot for the patch antokhio!

I managed to get the Z-axis with the Select(Value) node but I still can’t figure out how to change individual Pitch, Yaw & Roll values for the beginning/end points of the wave, so it alters it.

I’m using B-Spline Helper Texture output for the line as it gives me a good and smooth 3D view unlike the Quad or Line.

Wave3.2.v4p (29.7 kB)