world2pixel
gis.util.world2pixel(gtf, x, y)
Calculate the pixel location based on coordinates.
(Thanks to the ogr cookbook!)
Parameters
| Name | Type | Description | Default |
|---|---|---|---|
gtf |
tuple | The geotransform of a grid dataset. Can be optained via the get_geotransform method. Has the following shape: (left, xres, xrot, upper, yrot, yres). | required |
x |
float | int | The x coordinates of a point | required |
y |
float | int | The y coordinates of a point | required |
Returns
| Type | Description |
|---|---|
| tuple | Row and column indices. |
Examples
# Load a dataset
gs = fiat.io.GridSource(<some raster file>)
# Get the geotransform
gtf = gs.get_geotransform()
# Calculate the indices
row, col = world2pixel(gtf, <x>, <y>)