Image2Coordinates

Requirements

This code uses the following Python libraries:

• opencv-python (https://pypi.org/project/opencv-python/)
• OS Module

Usage

Code inputs an Image-path and generates the corresponding coordinates map.

You can run it as a normal Python3 program.

Input Image File

In an input image:

• There should be Black obstacles
• and Red targets

Please note that the input files with no included Targets are allowed.

Please consider the provided examples.

Output

An output coordinates map includes a list of x coordinates which are immediately followed by y coordinates for obstacles.

Example:

 x1
 y1
 x2
 y2 
 ....

After that, this file continues with the following line:

"---TARGETS---"

Hereafter, coordinates of the set of targets (if exists) come into lines just like the ones of the obstacles.

Example:

 x1
 y1
 ....
 x99
 y99
 "---TARGETS---"
 x100
 y100

Please note that there are coordinates for every pixel of the obstacles.

Also, please note that there is only ONE coordinate pair for each of the targets.

Using Output file in NetLogo

You can use the following code to load the file in a NetLogo Programm:

breed [Targets Target]
to Load-Map
  ask patches [set pcolor white]
  file-open "Example_map_2.cxy"
  let y/2 max-pycor / 2
  let end_of_obstacles? false
  while [not end_of_obstacles?]
  [
    let line file-read
    ifelse line = "---TARGETS---" [
      set end_of_obstacles? true]
    [
      let y 0 - line + max-pycor
      let x file-read - max-pxcor
      ask patches with [pxcor = x and pycor = y]
      [
        set pcolor black
      ]
    ]
  ]
  while [not file-at-end?]
  [
    let y 0 - file-read + max-pycor
    let x file-read - max-pxcor
    create-Targets 1
    [
      setxy x y
      set shape "X"
      set size 2
      set color red
    ]
  ]
  file-close
end