Javier
Posts:
61
Registered:
4/26/11
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Re: Access to float coordinates in a 3D matrix
Posted:
Dec 3, 2012 8:31 AM
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"Nasser M. Abbasi" wrote in message <k9i8s3$vp5$1@speranza.aioe.org>...
> On 12/3/2012 7:08 AM, Javier wrote:
> > Hi, I have several 3D lines to analyze a structure. The problem is
> >that these coordinates aren't integer, for example 1.9 and I have the error:
> > Subscript indices must either be real positive integers or logicals.
> >
> > I don't want to ceil, floor or round, cause if I do this the lines
> >are modified, how could I access to these coordinates without changing the line?
>
> you seem to be using the value itself as an index.
> use the location of the value as index. Not the value itself.
>
> --Nasser
Thanks,
I use
x = x0 + t*dx
y = y0 + t*dy
z = z0 + t*dz
with t: 0:0.1:1, and d the direction vector.
This is the value of the coordinate isn't it?
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