[opendx-users] 2-D pick

[Yuzhong Shen]

I used a Pick to draw 2-D stream line, but it didn't work. Pick returns 3-D
point (x, y, z), and my 2-D stream line only requires (x, y). I used Compute
to extract only (x, y), but it still didn't work. What's the problem?
Thanks.

yuzhong