V
Vergassivellaunus
Guest
In VB6 i run a loop like this:
do
'wait for something from USB
display a line on a graph, composed of 512 points
loop
The syncronous operation is dictated from the USB data, that arrive every 240 mseconds.
If i do the same in Visual Studio, the time requested is more and i loose syncronism.
Time is lost during display of data:
Me.Chart_time_z.Series(0).Points.Clear()
For n = 0 To N_samples - 1
Form_base.Chart_time_z.Series(0).Points.AddXY(n, asse_x
* graph_ampl)
Next
where N_samples=512 (the same as in VB6)
Even if i omit to clear data, nothing changes. With 64 samples it is yet to slow.
Application is unusable. I really hope that there is a solution. I cannot imagine Visual Studio less efficent than VB6.
I tested a loop like this:
do
'wait data from USB
Me.Chart_time_z.Series.Clear()
loop
With no drawing at all, but it is slow again.
Continue reading...
do
'wait for something from USB
display a line on a graph, composed of 512 points
loop
The syncronous operation is dictated from the USB data, that arrive every 240 mseconds.
If i do the same in Visual Studio, the time requested is more and i loose syncronism.
Time is lost during display of data:
Me.Chart_time_z.Series(0).Points.Clear()
For n = 0 To N_samples - 1
Form_base.Chart_time_z.Series(0).Points.AddXY(n, asse_x
* graph_ampl)Next
where N_samples=512 (the same as in VB6)
Even if i omit to clear data, nothing changes. With 64 samples it is yet to slow.
Application is unusable. I really hope that there is a solution. I cannot imagine Visual Studio less efficent than VB6.
I tested a loop like this:
do
'wait data from USB
Me.Chart_time_z.Series.Clear()
loop
With no drawing at all, but it is slow again.
Continue reading...