Parse QGIS 3 project files and write a JSON config file with layer information.
Start the script using python3 parseQGS.py project.qgs [mapproxy_project_name]
It creates a JSON configuration file called project.qgs.json.
A typical output for a layer could look like this:
{
"hidden": false,
"indentifiable": true,
"actions": [],
"name": "barris",
"type": "layer",
"showLegend": true,
"external": false,
"visible": true,
"fields": [
{
"name": "N_Distri"
},
{
"name": "N_Barri"
},
{
"name": "Coord_X"
},
{
"name": "Coord_Y"
}
]
},If you run the script on a server without X Server, you could get an error like:
qt.qpa.xcb: could not connect to display qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
qgis-layer-parser uses QgsApplication, which needs QGuiApplication, but principally is a console applications to be run in a non-X environment, so try turning off X Server by:
export QT_QPA_PLATFORM=offscreen
If you still run into troubles, try to set QT_DEBUG_PLUGINS=1.
project_name defines a project folder which is added to project_pathproject_path defines the path to the local project directory where .qgs file is located.dest_path defines the path to the output directory.mapproxy_project_name defines an optional mapproxy project name. If specified it will use this mapproxy name instead of the default project name. Thought for projects using mostly another mapproxy base.Groups and layers can be hidden by adding their names inside an array like QGIS project variable:
groups_hideintoc='["group_name_1","group_name_2"]'layers_hideintoc='["layer_name_1","layer_name_2"]'Alternativly to QGIS project variables some special characters can be used to hide layers, etc.:
@ to hide layers: You can use character @ in front of layer/group names in QGIS to set "hidden": true. This tells layerswitcher to avoid showing layer/group but renders layer/groups by default.~ to hide legend: You can use character ~ in front of layer/group names in QGIS to set "showLegend": false. This can be used to avoid rendering the legend.¬ to load WMS layers directly: You can use character ¬ in front of layer/group names in QGIS to set "external": true. This option also looks up layer source and writes the following parameters:
"wmsUrl": ''"wmsLayers": ''"wmsProjection": ''The project includes a test QGIS 3 project called bcn-geodata.qgs and it's geojson sources. It uses Open Data from Barceclona with information about districts and neighbourhoods.
It also includes an exmaple using ol-layerswitcher using the produced bcn-geodata.json file to configure layers. You can see the result opening layerswitcher.html.