topic Re: random generation of a '-1' or '1' flag? in Libraries & objects

random generation of a '-1' or '1' flag?

__archiben — Wed, 13 Oct 2004 09:33:25 GMT

as a GDL newbie, (i'm slowly getting through the first section DNC's cookbook), i'm a little lost with this:

is there any way i can create a random '-1' or '1' flag for a random positive/negative ADD and ROT command?

i can generate the random amount i want to offset/rotate, but i want to multiple by the -1 or 1 as well for a truer randomisation.

hoping . . .
~/archiben

Re: random generation of a '-1' or '1' flag?

Anonymous — Wed, 13 Oct 2004 09:56:59 GMT

You can use the RND function for this.
Page 2.40 of the Cookbook look also at the chapter Maths bits.
Not sure if it is exactly what you are asking for, but may be this can help.

Re: random generation of a '-1' or '1' flag?

Anonymous — Wed, 13 Oct 2004 10:27:56 GMT

Ben;

Try playing with the below...

HTH - Stuart
_____________________________

!*** Ben's Random Flag v1.0 ***

oRandom = rnd(0.9999999)
if oRandom > 0.5 then oFlag = +1 else oFlag = -1
text2 0,0, oFlag

!*** Ben's Random Flag v2.0 ***

oFlag = 2*(int(rnd(1.99999)))-1

!*** Ben's Random Angle v1.0 ***

oMinimumAngle = -90
oMaximumAngle = +90
oRotation = rnd (oMaximumAngle - oMinimumAngle) +oMinimumAngle

Re: random generation of a '-1' or '1' flag?

__archiben — Fri, 15 Oct 2004 13:35:33 GMT

thanks guys!

~/archiben