canvas VS bella

I wanted to share a recent large update to https://github.com/tdewolff/canvas, which is a vector graphics library written in Go to create images, PDFs, SVGs, OpenGL, etc. using vector drawing operations. Especially I wanted to show two new exciting features:

It appears that there's a port of Cairo to Go which also targets webassembly. https://github.com/tdewolff/canvas

https://github.com/tdewolff/canvas/blob/master/examples/opengl/main.go can draw primitves but i think it would be a bit hard to do event based animation

Yes! See https://github.com/tdewolff/canvas/tree/master/examples/gonum-plot for an example using gonum-plot. You should be able to plug-and-play to use the canvas library!

E.g. for text rendering, I find the largest font size that still renders inside that constraint. https://github.com/tv42/bella/blob/42d81584a247a38647c3ccc63e58b50e1c00e444/internal/render/render.go#L118 and https://github.com/tv42/bella/blob/42d81584a247a38647c3ccc63e58b50e1c00e444/internal/render/binsearch.go -- note I'm doing the scaling with the font renderer, not by resizing the output of whatever it renders, because different sizes get different hinting.

Hi! Thank for reading my post. For my use case this is more than enough and anyone can modify the code which is available on github. I will definitely consider https://github.com/tv42/bella/ on my other project. By the way I put some provision on specifying the font size via the web interface and facebook uses at least an og:image of 1200x630 hence fixed image. Cheers!