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Re: error: subscript range values of the form low:high must be >= 0, < size [message #63301 is a reply to message #63194]

Mon, 03 November 2008 15:54

Jean H.
Messages: 472
Registered: July 2006

Senior Member

frankosuna wrote:
> I am trying to store values into a array of type long but I keep
> getting the following error:
> subscript range values of the form low:high must be >= 0, < size, with
> low <= high: ROIPIXELS.
> The weird thing about it is when I set a breakpoint and step through
> the code it doesn't throw the error anymore. Also, if instead I don't
> use numClicks as the index and hardcode a 0 or 1 or 2...etc the code
> works as well!!!
>
> HELP!!!!!!!!!
>
> roiPixels = LONARR(5,25)
> numClicks = 1
>
> WHILE(!mouse.button NE 4) DO BEGIN
> CURSOR, xi, yi, /DEVICE
> IF(!mouse.button EQ 1) THEN BEGIN
> x = LINDGEN(5*5) MOD 5 + xi
> y = LINDGEN(5*5) / 5 + yi
> roiPixels[numClicks,*] = x + y * 1024
> numClicks++
> ENDIF
> ENDWHILE

if you click 6 times, numClicks = 7, which is greater than the 1st
dimension of roiPixels...
You might want to resize roiPixels as numClicks grows (or start with a
bigger array, and cut the unused entry when you are done)
Jean

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		error: subscript range values of the form low:high must be >= 0, < size By: frankosuna on Fri, 31 October 2008 10:34
		Re: error: subscript range values of the form low:high must be >= 0, < size By: Jean H. on Mon, 03 November 2008 15:54

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