Publishing RGB rasters

This simple AIKP is used for publishing multi-band (RGBA) rasters in TIFF/TIF file format.
One thing to keep in mind that Band 4 should be set to ɑlpha (or transparency) values.

Prerequisites

• rsync Region of Interest (ROI - as GeoJSON or KML) to home folder

• rsync raster for publishing to home folder

Constraints

• RGBA = RGB as first 3 bands and alpha band as fourth

• preferably in EPSG:4326 or EPSG code that GDAL can read

CLI workflow

create -n project_name -a

roi add -n roi_name <path to ROI in home folder>

task create -t ocli.aikp.composite -r roi_name -n task_name -a

• optional but recommended

  task set friendly_name="tree/structure/in/webUI/"
  task set attribution="user chosen text that would appear in bottom right of screen in webUI"
  

task set custom_composite_path=<path to TIFF in home folder>

task make recipe

task template link

ai makecog full

• additional options that can be added
  --nodata 0 = set no data value of created COG
  --mask-band INTEGER = force which band is used as alpha (RGBA from 1 to 4, with -1 being same as 4)
  --overview-resample ... = choice of resampling algorithms, options: nearest, average (DEFAULT), bilinear, cubic, cubicspline, lanczos

ai makegeojson --friendly-name="+final addition to friendly name set above"

• additional options that can be added
  --cos-key="+_addition" = useful in case same task is reused for publishing multiple rasters, so each one will have different key in COS

ai upload
ai publish post