[Liblas-devel] LAS Schema

[Howard Butler]

On Mar 17, 2010, at 3:31 PM, Robert Coup wrote:

> Hi,
> 
> On Thu, Mar 18, 2010 at 4:43 AM, Howard Butler <hobu.inc at gmail.com> wrote:
>> To that end, I have developed both a sample schema and a sample file that describes the point layout of point format 0 of the 1.0 specification
>> 
>> http://liblas.org/wiki/LASSchema
>> http://liblas.org/wiki/LASSchemaExample
> 
> Since I've been staring at xml schemas and documents for the last few
> days, i have a couple of minor suggestions for the schema:
> 
> 1. typo: dime[n]sionType.
> 
> 2. use minOccurs="0" rather than nillable="true". The later requires
> <description xsi:nil="true" />, the former makes the whole element
> optional, which is probably what you want :)
> 
> 3. make elementFormDefault=qualified, otherwise you can't really use a
> default namespace when creating documents, because the parser will
> qualify elements (eg. <dimension>) with the default namespace, and
> suddenly it's invalid because it needs to be unqualified according to
> the schema...
> 
> 4. make attributeFormDefault=unqualified so every attribute (eg
> units="uint8_t") doesn't need to be namespace-prefixed (there is no
> default namespace for attributes).
> 
> I've attached an updated schema and example xml file with these changes.

Excellent.  Thanks for the feedback.  Changes made and I have placed these files in the repository as well.