download data from wfs-panel

[pvgenuchten]

for dutch national georegister a panel has been implemented from which users can select a spatial extent and a typename from a wfs-capabilities
It would be nice to integrate this feature in master, however there are still some challanges... The interface for zooming and selecting extent needs improvements. For some servers (deegree) no typenames are displyed in dropdown (but download does work). GML downloads open as a browser-tab, would be better to give them a header-attachement, so it loads as a download..

But most interesting feature would be to create functionality to select an output format which might not be supported by the actual wfs server. For geoserver most formats are supported, but for example deegree has only a single format (GML). For non spatial users supporting formats like CSV and geojson is essential. Geotools (or ogr2ogr) might be used to do the conversion. The proces might even be deligated to an external server, to protect gn performance, also the maxfeatures might be limited (for example via urlrewrite)

[pvgenuchten]

[fxprunayre]

It would be nice to integrate this feature in master,

It's http://trac.osgeo.org/geonetwork/wiki/proposals/WFSDataDownloader

Also some other projects provide more advanced extract UI (eg. geOrchestra http://www.georchestra.org/fr/documentation/overview.html#extracteur https://github.com/georchestra/georchestra/tree/master/extractorapp) as a separate webapp with most of the requirements you're listing.

[Delawen]

I guess that merging at this point is not a good choice. Maybe just reimplement it on the new gn3 UI?

@pvgenuchten do you allow me to close this?

[pvgenuchten]

@Delawen, you can close it but then please create a new issue to recreate similar fucntionality in Angular UI. Note that this functionality is also relevant even if you don't have a map, when you notice a document ahs a link to a wfs service, you can add a link to the wfs-download panel there

[Delawen]

Ok, let's use this for adding the WFS on 3.0.x

[pvgenuchten]

parts of the download panel can also be used to extract data from an atom service
first retrieve from the atom in which formats and projections the dataset is available and then allow the user to select one of the formats/projections. If the atom only has 1 link the dataset can be downloaded instantly, no need to display the panel.

@fxprunayre, sure would be great to have similar functionality as geOrchestra. What do you suggest? Integrate some code from geOrchestra or show the download link only if gn detects that geOrchestra is available?

[Delawen]

Main problem is right now that this works with ExtJS. So we should have to redo at least the UI.

[fxprunayre]

Would be good to implement it back in the Angular app in the context of that proposal https://github.com/geonetwork/core-geonetwork/wiki/WFS-Filters-based-on-WFS-indexing-with-SOLR. We don't have resources for this, but it's quite related to the WFS work which is done.

Do you have any support to implement it ?

Moving to future release.

[Delawen]

Automatic close of issue because no activity was detected on the last year?

[fxprunayre]

Covered by #1438.