GeoJSON: Difference between revisions
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GeoJSON is a file format for geographical data. It is a simple text-based format which can be read by humans, but also by computers. Any Geo Dataset in another format can be converted to the GeoJSON file format. | GeoJSON is a file format for geographical data. It is a simple text-based format which can be read by humans, but also by computers. Any Geo Dataset in another format can be converted to the GeoJSON file format. | ||
==How to create a GeoJSON file== | ==How to create a GeoJSON file== | ||
To convert a Geo | To convert a Geo Dataset to a GeoJSON a GIS (Geographical Information System) can be used. ArcGIS Desktop is one example. An open-source alternative is QGIS. | ||
*Go to the documentation for [[How_to_create_a_GeoJSON_file_in_ArcMap|ArcGIS]] | |||
*Go to the documentation for [[How_to_create_a_GeoJSON_in_QGIS|QGIS]] | |||
Also take a look at the [[Data_preparation|data preparation]] page for considerations and tips regarding importing geo data. | |||
====Notes==== | |||
The GeoJSON file must conform to a number of prerequisites before it can be loaded properly. Files which do not conform to these prerequisites may not be loaded properly by the {{software}}. The requirements are: | The GeoJSON file must conform to a number of prerequisites before it can be loaded properly. Files which do not conform to these prerequisites may not be loaded properly by the {{software}}. The requirements are: | ||
* The file must be saved in GeoJSON format | * The file must be saved in GeoJSON format | ||
| Line 14: | Line 16: | ||
* All desired attributes must be numerical, so that they can be loaded as valid [[attribute]] values. Attributes with text values are ignored when attempting to load them as attributes. See for steps, [[Data_preparation#Text_attributes|this page]]. | * All desired attributes must be numerical, so that they can be loaded as valid [[attribute]] values. Attributes with text values are ignored when attempting to load them as attributes. See for steps, [[Data_preparation#Text_attributes|this page]]. | ||
==How to | ==How to import GeoJSON file== | ||
<!--[[File:GeoJSON_received.jpg|framed|right|After either dragging and dropping the GeoJSON file, or selecting a file with the file-selection window, this window will appear.]]--> | <!--[[File:GeoJSON_received.jpg|framed|right|After either dragging and dropping the GeoJSON file, or selecting a file with the file-selection window, this window will appear.]]--> | ||
Use the [[Geo Data Wizard]] for importing the created file. Select in step 1 the first option: ''Import a GeoJSON file'' and follow the steps in the wizard. | Use the [[Geo Data Wizard]] for importing the created file. Select in step 1 the first option: ''Import a GeoJSON file'' and follow the steps in the wizard. | ||
<br> | <br> | ||
{{Template:GeoDataOverview}} | {{Template:GeoDataOverview}} | ||
[[Category:Files]] | |||
Latest revision as of 09:43, 30 January 2023
GeoJSON is a file format for geographical data. It is a simple text-based format which can be read by humans, but also by computers. Any Geo Dataset in another format can be converted to the GeoJSON file format.
How to create a GeoJSON file
To convert a Geo Dataset to a GeoJSON a GIS (Geographical Information System) can be used. ArcGIS Desktop is one example. An open-source alternative is QGIS.
Also take a look at the data preparation page for considerations and tips regarding importing geo data.
Notes
The GeoJSON file must conform to a number of prerequisites before it can be loaded properly. Files which do not conform to these prerequisites may not be loaded properly by the Tygron Platform. The requirements are:
- The file must be saved in GeoJSON format
- The file must have a CRS (Coordinate Reference System) defined
- The file must use character encoding UTF-8.
- All desired attributes must be numerical, so that they can be loaded as valid attribute values. Attributes with text values are ignored when attempting to load them as attributes. See for steps, this page.
How to import GeoJSON file
Use the Geo Data Wizard for importing the created file. Select in step 1 the first option: Import a GeoJSON file and follow the steps in the wizard.