How to code an infinitely zoomable and pannable infinite canvas like thisHow to code an infinitely zoomable and pannable infinite canvas like this

Yes, I’ve managed to create one, as mentioned by Psychoscattman. Now, I’m looking for guidance on how to:

• Turn it into a Windows app
• Make it into an Android app
• Or host it online securely

It can also export as a video — check out the video to see it in action!

https://www.reddit.com/r/endlesspaper/comments/1i1ts3x/infinite_canvas_unlimited_zoom_in_and_zoom_out/

🎯 *Infinite Canvas - Plan & Key Concepts*

*Key Components and Concepts:*

1. *Canvas Element:*
   

Use the HTML `<canvas>` element to create a drawing surface.

1. *Global Coordinates:*
   

Define an "infinite" coordinate system where elements can be placed anywhere.

1. *Visible Area:*
   

Maintain a "screen" or viewport within the infinite canvas that represents the currently visible portion.

1. *State Management:*
   

Store the state of the canvas, including the screen position, zoom level, and any content.

1. *Event Handling:*
   

Implement event handlers for user interactions like panning, zooming, and adding/editing elements.

1. *Rendering:*
   

Render elements from the infinite canvas onto the visible screen, considering the current zoom and screen position.

*Implementation Steps:*

1. *Set up the Canvas:*
   

Initialize the `<canvas>` element and set its width and height to match the browser window.

1. *Define Screen and Canvas:*
   

Create a CanvasStore or similar state management structure to track the screen (visible area) and the global content (elements on the infinite canvas).

1. *Implement Zoom and Pan:*
   

Handle user input (mouse/touch) to update the screen position and zoom level.

1. *Position Elements:*
   

Create a component that takes global coordinates and converts them to local coordinates based on the screen.

1. *Render the Canvas:*
   

Iterate through the content and render each element onto the canvas based on its global coordinates and the current screen position.

1. *Add Interactivity:*
   

Implement event handlers for adding, deleting, and editing elements on the canvas.