[pdal] help - Compilation success :)

[Michael P. Gerlek]

I'm no longer sure.  It's a good question, though -- one that we've thought about.  Howard?

(For what it's worth, I hope that in a month from now we'll have some good tutorial/examples in the docs for this sort of thing.)

-mpg


> -----Original Message-----
> From: pdal-bounces at lists.osgeo.org [mailto:pdal-bounces at lists.osgeo.org] On Behalf Of Jérôme Chatillon
> Sent: Friday, January 06, 2012 3:32 AM
> To: pdal at lists.osgeo.org
> Subject: [pdal] help - Compilation success :)
> 
> About my first question (few minutes ago):
> 
> First question (maybe stupid): how can I know I get the options of a pdal::filter without using it ? Because I need:
> - pdal::Stage& prevStage (but I don't have one)
> - pdal::Option& options (this I can create an empty one)
> 
> 
> --> Actualy, a pdal::filter as static functions s_getName() and s_getDescription() (automaticly implemented by
> SET_STAGE_NAME(name, description) ). So i get easily get the name and the description without instance of the class. About the
> default options i found this in StageBase.hpp:
> 
> /// Everyone must implement this.  If you want to access the list of
>     /// options "statically", you are free to construct the stage with no
>     /// arguments and cal getDefaultOptions() on it -- there is no need
>     /// to call initialize(), so it should be a fast/safe operation.
>     ///
>     /// @return The default options.
>     virtual const Options getDefaultOptions() const = 0;
> 
> So it's a virtual, not static. I tried : pdal::filters::Attribute::Attribute().getDefaultOptions(); but of course it's not correct :P
> 
> So how to get the default option withou filter instance ?
> 
> Thanks
> 
> Jérôme Chatillon
> 
> TerraImaging
> Groenewoudsedijk 40
> 3528 BK  Utrecht
> The Netherlands
> 
> tel: +31 (0)30-686 616 7
> fax: +31 (0)30-686 616 6
> email: j.chatillon at terraimaging.nl
> skype: terraimaging_jchatillon
> 
> 
> De : Jérôme Chatillon
> Date d'envoi : vendredi 6 janvier 2012 11:44
> À : pdal at lists.osgeo.org
> Objet : help - Compilation success :)
> 
> 
> Hi,
> 
> I compiled PDAL from source, and start to 'play' with in my Qt project.
> 
> My first goals are:
> - learn pipeline/stage using sources
> - create my own filter(s)
> 
> First question (maybe stupid): how can I know I get the options of a pdal::filter without using it ? Because I need:
> - pdal::Stage& prevStage (but I don't have one)
> - pdal::Option& options (this I can create an empty one)
> 
> Cordialement,
> 
> Jérôme Chatillon
> 
> TerraImaging
> Groenewoudsedijk 40
> 3528 BK  Utrecht
> The Netherlands
> 
> tel: +31 (0)30-686 616 7
> fax: +31 (0)30-686 616 6
> email: j.chatillon at terraimaging.nl
> skype: terraimaging_jchatillon
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