The intent of this QGIS Plugin is to allow the easy discovery and import of LINZ Data Service (data.govt.linz.nz) data into QGIS.
As well as the LINZ Data Service, the plugin can be configured to allow the discovery and importing of data from other New Zealand agencies that make use of the same technology platform to publish their data.
This plugin supports the below open data portals:
The LINZ Data Service Plugin supports data served over WFS and WMTS protocols. Please see the resources available on the LINZ website
Prior to using the plugin, an API Key for each domain that data is to be loaded from must be must be configured via the "Settings" menu. Configuring each domain and API key will trigger the plugin to request all of the domain's dataset information, allowing a user to view and import the domain's data in QGIS.
An API key for each of the supported services can be allocated from each of the service's websites (see Supported Services for a link to each services website were the API Keys can be got).
For detailed instructions on getting an API key, please see the LINZ Data Services user resources.
To configure LINZ basemaps please visit https://basemaps.linz.govt.nz to obtain an API Key.
When at https://basemaps.linz.govt.nz:
* Note; these keys are rotated every 90 days and will need to be update accordingly
The available CRS options for each layer are shown next to the import button (in terms of EPSG code). If the data source is stored in multiple CRSs the user can select which CRS the dataset is to be requested in from the server.
* Note; if the QGIS project's CRS and the imported dataset's CRS do not match, QGIS will reproject the imported data to the project's CRS. Beware: reprojecting data can degrade spatial accuracies and relationships.
When importing the first dataset via the plugin for a QGIS session, the plugin will change the QGIS project's CRS to match the imported data. If On The Fly (OTF) projection is not enabled, the plugin will enable OTF to allow any further datasets to be reprojected to the project's / QGIS session's CRS. When these changes occur the user will be informed via the QGIS message bar.
When saving a Domain and API key for the first time via the Setting menu, the plugin will request the capabilities documents for each service / protocol type (WMTS, WFS). The Data Portal's server can be slow to respond with these documents causing the plugin to appear inactive. The good news is this is the only interaction with the plugin where substantial patience may be required. Once the initial documents are fetched, they will be cached and updated in the background each time the plugin is started.
The left hand panel allows users to filter by service / protocol types (either, All, WFS, WMTS). All column headers can be toggled to allow ascending or descending ordering of their data. Text can be entered in the "Filter Data Sets" search bar to filter the datasets by keyword.
Please see the LINZ-Data-Importer repository on GitHub.
Thanks to all those at LINZ who have provided input and feedback. And thanks to Pete King for the icons.