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pluginto:wfs [2022/10/11 03:26] – gregbalcopluginto:wfs [2024/03/12 13:40] (current) – joetulenko
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 You can add a data source in QGIS in several ways. One, in the QGIS "browser" panel (can be shown on the page by navigating to view -> panel -> and selecting "browser") one of the options for layers to add to any map is the "WFS / OGC API - features" option. Right click that option and select "New Connection..." Alternatively, you can get to the Data Source Manager either from the toolbar icon or from the top menus (Layer -> Data source manager), then click on the 'WFS/OGC Api - Features' tab and select 'New.' In either case you will be presented with a connection window that should look like this:   You can add a data source in QGIS in several ways. One, in the QGIS "browser" panel (can be shown on the page by navigating to view -> panel -> and selecting "browser") one of the options for layers to add to any map is the "WFS / OGC API - features" option. Right click that option and select "New Connection..." Alternatively, you can get to the Data Source Manager either from the toolbar icon or from the top menus (Layer -> Data source manager), then click on the 'WFS/OGC Api - Features' tab and select 'New.' In either case you will be presented with a connection window that should look like this:  
  
-{{ :pluginto:new_connection_page.jpg?nolink&400 |}}+{{ :pluginto:wfs_step3.2-correct.png |}}
  
 Name the connection whatever you like. Name the connection whatever you like.
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 https://geoserver.ice-d.org/geoserver/wfs?version=2.0.0 https://geoserver.ice-d.org/geoserver/wfs?version=2.0.0
  
-This link establishes a connection between your desktop GIS application and all of the ICE-D data stored as a Web Feature Service (WFS) hosted online by Geoserver. Before selecting OK, be sure to check the box stating "Invert axis orientation". Otherwise QGIS will think latitude values are longitude values and vice versa and all of your sample locations will be rotated 90 degrees. +This link establishes a connection between your desktop GIS application and all of the ICE-D data stored as a Web Feature Service (WFS) hosted online by Geoserver. Before selecting OK, be sure to check the box stating "Ignore axis orientation". Otherwise QGIS will think latitude values are longitude values and vice versa and all of your sample locations will be rotated 90 degrees. 
  
-**Note**: Either the "invert axis orientation" or the "ignore axis orientation" checkboxes may work equivalently. Yes, this behaviour is weird. If you really want to know about this, look [[https://docs.geoserver.org/stable/en/user/services/wfs/axis_order.html|here]].+**Note**: "ignore axis orientation" and "invert axis orientation" checkboxes may work equivalently. Yes, this behaviour is weird. If you really want to know about this, look [[https://docs.geoserver.org/stable/en/user/services/wfs/axis_order.html|here]], but it basically has to do with whether your layer lists coordinate pairs as Lat,Lon or Lon,Lat.
  
 The connection page should now look like this:  The connection page should now look like this: 
  
-{{ :pluginto:screen_shot_2022-10-10_at_8.04.47_pm.png?nolink | }}+{{ :pluginto:wfs_step3.2-correct.png |}}
  
 Now click 'OK.' Now click 'OK.'
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 In the image above, I selected some random surface samples related to the Greenland Ice Sheet in northwest Greenland as an example (the red highlighted dots on the map). Each entry (sample) has a set amount of attribute data that comes from ICE-D. The image shows the complete list, and users are encouraged to explore on their own, but attribute data includes lat lon and sample elevation values, among other attributes useful for querying. Currently, each sample has reported calculated ages based on the default production rate ([[https://doi.org/10.1016/j.quageo.2015.01.009|Borchers et al., 2016]]) and the scaling scheme from [[https://doi.org/10.1029/2000JB900181|Stone (2000)]] (St) and from [[https://doi.org/10.1016/j.epsl.2013.10.052|Lifton et al. (2014)]] (LSDn). Attribute data also includes links to sample and site pages and a list of DOI's to publications associated with each sample. In the image above, I selected some random surface samples related to the Greenland Ice Sheet in northwest Greenland as an example (the red highlighted dots on the map). Each entry (sample) has a set amount of attribute data that comes from ICE-D. The image shows the complete list, and users are encouraged to explore on their own, but attribute data includes lat lon and sample elevation values, among other attributes useful for querying. Currently, each sample has reported calculated ages based on the default production rate ([[https://doi.org/10.1016/j.quageo.2015.01.009|Borchers et al., 2016]]) and the scaling scheme from [[https://doi.org/10.1029/2000JB900181|Stone (2000)]] (St) and from [[https://doi.org/10.1016/j.epsl.2013.10.052|Lifton et al. (2014)]] (LSDn). Attribute data also includes links to sample and site pages and a list of DOI's to publications associated with each sample.
  
-A major advantage of viewing samples in your own personal desktop application is that you have access to all of the  samples in the database and their metadata, and you can select samples based on geographic locations with ease. However, GIS applications also have querying tools that allow users to select samples based on their attributes in essentially the same exact way a user might query an sql database to extract the exact data they want. Please find an example of using QGIS to query data from ICE-D in the [[applications:diy|ICE-D tutorials, visualization and analysis applications page]]+A major advantage of viewing samples in your own personal desktop application is that you have access to all of the  samples in the database and their metadata, and you can select samples based on geographic locations with ease. However, GIS applications also have querying tools that allow users to select samples based on their attributes in essentially the same exact way a user might query an sql database to extract the exact data they want. Coming soon: examples of using QGIS to query data from ICE-D in the [[applications:diy|ICE-D tutorials, visualization and analysis applications page]]