[pdal] help - Compilation success :)

[Jérôme Chatillon]

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