Insolent_Chimp

5th May 2004 02:38 UTC

Evil point dot
I'm putting dots on the screen all randomly as random does. The thing is I don't know why the dot in the middle is there. I want to get rid of it and I can't seem to do it (at least with my caveman antics) using skip.:confused:

All I know about this method of drawing with a superscope is what I've pulled from these forums and reverse engineered from other peoples presets (and I only say "reverse engineered" to be self important or at least sound like I'm in the know). Help a guy out, please.

Here's the superscope with a grey background to show off the ugly evil dot in the middle of the screen. (It is supposed to be restricted to that letterbox shape .)

TomyLobo

5th May 2004 07:51 UTC

you based you p at 0 (p=-1 in frame and p=p+1 as the first line in the frame) but you had no equal(p,0) in your equations for x or y. so i changed n to 9 and lowered all those index numbers in the equation for x/y by 1.
I also simplified your randomization code and changed your color coding so that there is not 1 dot black and the rest white anymore :)

[edit]btw that belongs in the AVS Troubleshooting Sub-Forum[/edit]

horse-fly

5th May 2004 08:12 UTC

if you just want to put random dots, why not just use

Init:
n=1

frame:
xt=rand(2000)-1000;
yt=rand(2000)-1000;

Point:
x=xt*0.001;
y=yt*0.001

?

you can then do what ever you want to the color

piR

5th May 2004 12:39 UTC

And if you want to use more than 7 or 8 dots (say 100 or more) you should better use arrays, in other words, loop() and [g]megabuf() !
(you can find examples in my presets "Irradiation" or "Maelstrom", and "Poursuite" on my web site - see link below).

sta

5th May 2004 17:28 UTC

1. set n to 9 (you have only 9 random points)
2. write p=0 instead of p=-1 in the frame textfield
3. delete the line with the skip function

P.S:
When the 'per point' commands are executed at first time after the 'per frame' textfield your variable p has the value -1. After that it's incremented to 0 and you get the point (0.02, 0) which is the 'evil point' in the middle.