How to create 2D Graphics Environment?

Hi All,

I want to create a 2d graphics environment, where there is a grid system and then user draw lines using mouse and at backend, coordinates matrix will be built. After that, if user select the drawn line, its coordinates can be acheived. Just as in the video(link below)

Thanks in advance

https://www.youtube.com/watch?v=nhjy-AFcvco&list=PLpdZM_zpvo7wn3kzCdjYx_z1Xp41C7Kar

[KSSV]

Read about gui, app designers.

[Ahmed Anas]

I know about app designers, guide. Please watch the video, i think you are not getting my point.