G9.js: Automatically Interactive Graphics (omrelli.ug)

Article summary

G9.js is a JavaScript library that allows users to create interactive graphics by defining initial data and a render function. The library optimizes over the space of possible values for the data to find a set of values that comes closest to creating the desired change when a user interacts with the graphics. This enables users to create complex, interactive demos without explicitly coding the interactivity. The library is demonstrated through various examples, including a LOGO Turtle simulator and a crank and piston animation.

Main themes

• interactive graphics
• optimization techniques
• drag-and-drop interfaces
• mathematical modeling
• JavaScript libraries
• computer-aided design

What commenters say

• The library's ability to automatically optimize data values for interactive graphics is a unique and powerful feature.
• Some commenters find the library's approach to be similar to inverse kinematics or constraint-based sketching tools.
• The library's use of gradient descent optimization is seen as a key aspect of its functionality.
• Others are unsure about the practical applications of the library, but acknowledge its potential for creating complex, interactive demos.
• A few commenters note that the library's approach may not be suitable for all types of drag-and-drop interfaces, which often require additional features like hover effects and animation.
• The library's simplicity and ease of use are seen as major advantages, allowing users to create interactive graphics without extensive coding knowledge.