Pixel selection on the picture with Javascript -- 2

Job ID: 30867986

Budget: $10 – $30 USD

I need X-Y position selector.

Firstly look at the video file I uploaded.
I have a 4k image and I want to select a certain coordinate from this image.
But I also want to be able to add lines wherever I want. Exp: to identify junction points

Imagine there is a hidden object, our goal is to guess where this hidden object might be.

I will share sample site information later.

Elements used in the example:
-> Raphael.js
Related categories: JavaScript CSS HTML5 jQuery / Prototype SVG