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Re: Check if coordinate is in array [message #34071] Wed, 19 February 2003 19:53
Thomas Gutzler is currently offline  Thomas Gutzler
Messages: 44
Registered: November 2002
Member
Thomas Gutzler wrote:
>
> FUNCTION is_element_of_2D, x, arr
> xidx = WHERE(arr[0,*] EQ x[0], c1)
> yidx = WHERE(arr[1,*] EQ x[1], c2)
> IF (c1 + c2 GT 0) THEN tmp = WHERE(MATRIX_MULTIPLY(xidx, $

replace this by: IF (c1 NE 0 AND c2 NE 0) THEN ...

> 1./TRANSPOSE(yidx)) EQ 1, c3) ELSE c3 = 0
> RETURN, c3 NE 0
> END

Tom

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