Open the config.ini and enter your table specifications.
Execute python city_io_to_geojson.py (Python 3.6.7).
Find resulting geojsons in the ./resulting_jsons folder.
2 result sets will be generated
a) ./resulting_jsons/outer_cells will contain the gridcells with coordinates of the true cell corners, using cellsize.
b) ./resultings_jsons/inner_cells will contain 'inner' gridcells with margins towards the cells' centers.
True gridcell sizes and locations will be maintained in any projection.
Generates a geojson containing a polygon for each gridcell of a CityScope table. The coordinates of the polygons can be generated in a desired projection / coordinate-reference-system, e.g. WGS 84.
The script generates an array of gridcells based on a origin point. Gridsize is specified by the number of columns and rows given in the config.ini
The script will convert the origin point coordinates into a local metric coordinate reference system. First it will generate a metric local version of the grid and save it as geojson. The metric grid is then reprojected into the desired output coordinate reference system. Dimensions of the gridcells will stay true in output projection. Resulting geojsons will be saved to the ./resulting_jsons folder
This script is used for providing an initial georeferenced version of the CityScope table at deploy. The geojson is containing only the coordinates and nulled properties for each gridcell. Properties can for each gridcell shall be updated through cityIO.
ORIGIN_EPSG: Coordinate reference system of ORIGIN_LONGITUDE AND ORIGIN_LATITUDE
LOCAL_EPSG = Local metric coordinate reference system, e.g. Hamburg 'EPSG:25832'
- Find your local EPSG here : https://epsg.io
OUTPUT_EPSG = Desired output coordinate reference system, e.g. 'EPSG:4326' for worldwide longitude, latitude
TABLE_FLIPPED: yes|no
- The table origin should be in the NorthWest corner of the table. In case the table is flipped, and the origin specified is in the SouthWest corner, specify a 'yes' here. Default: no
TABLE_ROTATION: The rotation of the table in degrees
CELL_SIZE: Size of the gridcell in meters
ORIGIN_LONGITUDE: Longitude of the table origin
ORIGIN_LATITUDE: Latitude of the table origin
TABLE_ROWS: Count of rows on table
TABLE_COLS: Count of columns on table
