Laser "flickers" with SDK programming :(

[rlbond86]

Laser \"flickers\" with SDK programming

Hi, I am trying to use 4 tracks to draw a square using the laser SDK in c++, sort of to understand how different tracks work.
I have it working, but tracks 1,2,and 3 "flicker", while track 4 stays solid.
Here is my code:



Code:<pre>
FRAMESTRUCTEX f1,f2,f3,f4;
PTSTRUCT p1[2],p2[2],p3[2],p4[2];
memset(&f1, 0, sizeof(f1));
memset(p1, 0, sizeof(p1));
memset(&f2, 0, sizeof(f2));
memset(p2, 0, sizeof(p2));
memset(&f3, 0, sizeof(f3));
memset(p3, 0, sizeof(p3));
memset(&f4, 0, sizeof(f4));
memset(p4, 0, sizeof(p4));

int zValue = 0;
int k = -10;


SetWorkingTracks(1);
SetWorkingFrame(1);
p1[0].RGBValue=0;
p1[0].XCoord = 8000;
p1[0].YCoord= 8000;
p1[0].ZCoord = zValue;
p1[0].FCoord=0;
p1[0].Status=4096;
p1[1].RGBValue=RGB(255,255,255);
p1[1].XCoord = 8000;
p1[1].YCoord= -8000;
p1[1].ZCoord = zValue;
p1[1].FCoord=0;
p1[1].Status=4096;
f1.VectorFlag = 1;
f1.NumPoints = 2;
f1.ScanRate=k;
WriteFrameEx(&f1, &p1[0]);
DisplayFrame(1);


SetWorkingTracks(2);
SetWorkingFrame(2);
p2[0].RGBValue=0;
p2[0].XCoord = 8000;
p2[0].YCoord= -8000;
p2[0].ZCoord = zValue;
p2[0].FCoord=0;
p2[0].Status=4096;
p2[1].RGBValue=RGB(255,255,255);
p2[1].XCoord =-8000;
p2[1].YCoord= -8000;
p2[1].ZCoord = zValue;
p2[1].FCoord=0;
p2[1].Status=4096;
f2.VectorFlag = 1;
f2.NumPoints = 2;
f2.ScanRate=k;
WriteFrameEx(&f2, &p2[0]);
DisplayFrame(2);


SetWorkingTracks(4);
SetWorkingFrame(3);
p3[0].RGBValue=0;
p3[0].XCoord = -8000;
p3[0].YCoord= -8000;
p3[0].ZCoord = zValue;
p3[0].FCoord=0;
p3[0].Status=4096;
p3[1].RGBValue=RGB(255,255,255);
p3[1].XCoord = -8000;
p3[1].YCoord= 8000;
p3[1].ZCoord = zValue;
p3[1].FCoord=0;
p3[1].Status=4096;
f3.VectorFlag = 1;
f3.NumPoints = 2;
f3.ScanRate=k;
WriteFrameEx(&f3, &p3[0]);
DisplayFrame(3);


SetWorkingTracks(8);
SetWorkingFrame(4);
p4[0].RGBValue=0;
p4[0].XCoord = -8000;
p4[0].YCoord= 8000;
p4[0].ZCoord = zValue;
p4[0].FCoord=0;
p4[0].Status=4096;
p4[1].RGBValue=RGB(255,255,255);
p4[1].XCoord = 8000;
p4[1].YCoord= 8000;
p4[1].ZCoord = zValue;
p4[1].FCoord=0;
p4[1].Status=4096;
f4.VectorFlag = 1;
f4.NumPoints = 2;
f4.ScanRate=k;
WriteFrameEx(&f4, &p4[0]);
DisplayFrame(4);


SetWorkingTracks(15);
DisplayUpdateEx(1);
system("PAUSE");
</pre>

As you can see it is pretty simple, for the most part I just copied and pasted four times.
What am I doing wrong and why is it flickering? Thank you :airtoss:

 

[miromanowski]

Same thing is happening for me

I have a C++ program using the SDK that is doing the same thing. I am using 4 distinct tracks and frames. I am drawing one frame per track. Since the frames were made at 0,0,0 in LD2000 I am loading the frame file and then moving the frames to were I need them using DisplayTransPost. The issue I am having is with text that I am drawing. My application updates information at 10Hz and during each update there are some frames with pre-drawn objects that I need to move around as well as text that needs to be updated. The pre-drawn frames display fine, solid image, no flickering. I am currently drawing 2 strings of text no more than 4 characters each. The first one drawn flickers while the last one stays solid and bright. I am pretty sure I am staying well under the 30000 pps that the laser hardware is supposed to support. Any ideas on why just the first bit of text I draw would flicker while everything else stays solid?