javascript spravka

I have an HTML5 Canvas. I am using the KineticJS(KonvaJS) canvas library. The canvas contains an Im… Read more How Can I Combine Alpha With Compositing In Images?

I would like to use Konvajs to do below tasks: draw two rectangle groups on canvas. Each group con… Read more Konvajs: How To Connect Two Shapes With An Arrow?

In my application, I need to detect the mouse events on the edge / border / stroked part of a shap… Read more How To Do Mouse Hit Testing On The Edge / Border / Stroked Part Of A Shape