Canvas Turtle is an object that interprets and renders graphic commands in a Canvas. It provides an API for rendering basic drawing primitives in 2D and includes commands that define the position of the graphics to be rendered, conditionals, loops, and so on. Commands are supplied as text strings with a simple syntax.
Easy Chart is an object to display several types of charts in Canvas elements. It takes the values, labels, and colors of each point and renders the chart in canvas elements of a given size. Currently, it supports rendering charts of types: line, scatter, column, bar, and pie. The chart background color, grid color and spacing, error, and mouse event handlers are configurable parameters.