check_range.sh

#!/bin/bash

A_json=./world_all_test.json
B_json=./gizzy_full_extent_test.json


#extract coord for world poly
Aulx=$( jq .coordinates[0][0][0] $A_json )

Auly=$( jq .coordinates[0][0][1] $A_json )

Alrx=$( jq .coordinates[0][2][0] $A_json )

Alry=$( jq .coordinates[0][2][1] $A_json )

echo "world bbox: upper left("$Aulx","$Auly"), lower right("$Alrx","$Alry")"  


#extract coord for inside poly testing
Bulx=$( jq .coordinates[0][0][0] $B_json )

Buly=$( jq .coordinates[0][0][1] $B_json )

Blrx=$( jq .coordinates[0][2][0] $B_json )

Blry=$( jq .coordinates[0][2][1] $B_json )

echo "inside bbox: upper left("$Bulx","$Buly"), lower right("$Blrx","$Blry")" 

#test if gizzy poly is touching a web mercator poly
if (( $(echo "$Bulx > $Aulx" | bc -l) )); then

  echo "A poly is within a B poly x-range."
  if (( $(echo "$Buly < $Auly" | bc -l) )); then
    echo "A poly and B poly are properly touching each other."
  fi
  else
    echo "Nope, no touch. Move on."
fi