Instructions for Use
Perform GeoSOT based 3D grid encoding on the dataset, that is, perform GeoSOT based spatial partitioning of the Earth's space from three directions: longitude, latitude, and geodetic height. The Earth's three-dimensional grid units are assigned corresponding quaternary 2D grid encoding and altitude domain encoding. For detailed segmentation and coding methods, please refer to the "Earth Space Grid Coding Rules_GB_T 40087-2021".
Parameter Description
| Parameter Name | Default Value | Parameter Definition | Parameter Type |
|---|---|---|---|
| Source Dataset | The vector dataset to be encoded, supporting 3D point line surface and model dataset types. Only datasets with latitude and longitude coordinate systems are supported | DatasetVector | |
| QR code field name (Optional) |
GeoSOT_ 2D_ Code | The field name specified to store the two-dimensional grid location code, which must be a field that does not exist in the original data | String |
| Height position code field name (Optional) |
GeoSOT_ H_ Code | The field name of the specified storage height location code, which needs to be a field that does not exist in the original data | String |
Output Results
If the execution is successful, add "GeoSOT2D_Code" and "GeoSOT_H_Code" fields in the source dataset to store the quaternary two-dimensional grid position code and binary height domain code of the Earth's surface space, respectively.
*The quaternary two-dimensional grid position code of GeoSOT grid starts with G, and the subsequent encoding bits are the minimum grid level that completely surrounds the geometric objects in the dataset, with a maximum of 32 levels.
*The height domain code starts with 0 above the ground and 1 below the ground, and the number of digits is the minimum grid level, with a maximum of 32 levels.
For example:
2D spatial encoding: G001331010 The minimum mesh level that completely surrounds the geometric object in the longitude and latitude direction is the 11th level.
Height domain code: 000111111111111111 The subdivision level in the geodetic height direction is 17 levels.
