the problem about 3DGraph

[vivigao]

i use measurement studio for vc6.0 to draw a 3DGraph.

now i use Plot3DSurfaceof CNi3DGraph to draw a 3D graph

the x data is time,the y data is from 0 to 2048,and the z data is the voltage which is from my usbdevice.

so the plot is real time.

and i set a timer 60ms to ignite  redrawing .

during the plot redrawing the timer stop.  when the redrawing stop,the timer start again.

however i found that whit my 3d graph extend to time axis(x axis) the function Plot3DSurface waste more time.

so my 3D graph can not real time.

how can i  use measurement studio to draw a real time 3D graph

[hanyi · Accepted solution]

3D Graph takes some time to redraw.  60ms might be a little short for that.  I would suggest a longer interval like 200ms to refresh.

[vivigao]

First,thank you very much.

i have tried your suggestion for 600ms to refresh.

and now the time of redrawing increase from 60ms to 90ms in a minute,which is shorter than before.