Problems with Objects stored in array about infinite-canvas

[Azeirah]

The problem is that you're storing the rectangle co-ordinates and redrawing them every time.
The moveTo and moveBy methods handle the drawing for you.

It works like this:

1. You draw to your regular canvas
2. When you call inf_ctx.updateChunks(), this gets synchronised to the infinite canvas behind
3. You can now call inf_ctx.moveBy and inf_ctx.moveTo to move around the canvas. Whatever was drawn to the canvas originally will be automatically drawn in the new, correct position.

This interaction model only really makes sense for painting-like applications, like an infinitely-expanding whiteboard or MS Paint with an automatically expanding canvas.

Can you tell me a little bit more about your goal? This library might fit, but if it involves more than a little bit of interaction I highly recommend going for something with an interaction-model built-in like paper.js, pixi.js or phaser.js (it's a game engine, but game engines are perfectly fine for interactive canvas applications!) or if you prefer a well-filled low-level toolbox you could use p5.js.

[FrankDaze]

thanks for your quick answer.

I redraw the objects all the time because I need to do that for drawing the rectangles by dragging the mouse.
My goal is to build a collaboration board like Miro (Miro.com) or Lucidchart.

I will have a look into the libraries you mentioned and will check if they suit to my idea.

Best
Frank