[vtkusers] precision of SPACING

[Nico Schlömer]

> If you store the file as binary, I think you'll retain the full precision.

That's true for all the hard data, but when you look at, e.g., a
POINT_DATA entry

============================= *snip* =============================
DIMENSIONS 16 241 1
SPACING 0.0833333 0.0833333 0
ORIGIN 0 0 0
POINT_DATA 3856
FIELD FieldData 1
psi 2 3856 double
¿ïàE<84>¼MÑ¿¶^?c<89>LÇ^C¿
[...]
============================= *snap* =============================

you'll see that the meta info is still stored clear text.

Cheers,
Nico

On Wed, Feb 17, 2010 at 11:01 PM, Bill Lorensen <bill.lorensen at gmail.com> wrote:
> If you store the file as binary, I think you'll retain the full precision.
>
> On Wed, Feb 17, 2010 at 3:41 PM, Nico Schlömer <nico.schloemer at gmail.com> wrote:
>> Hi,
>>
>> is there any way to tell VTK to store the SPACING (as in legacy VTK
>> files) in higher precision? As far as I can see, this is limited to
>> seven, eight significant digits. It's not that I need 15 digits for
>> plotting but for reading and working with it I do. An easy workaround
>> would of course be to to the values separately in a field.
>>
>> XML-based VTI, for example, stores 15 digits. Is that something one can rely on?
>>
>> Cheers,
>> Nico
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