A Virtual World - JavaScript Course: Lesson 4 / 11 [Polygon Operations in JavaScript]

Veröffentlicht am: 13 Oktober 2023
auf dem Kanal: Radu Mariescu-Istodor

10,108

266

Welcome to the course where we build a self-driving car simulation in a virtual world. In this video we'll learn a technique using geometry to wrap the graph segments in what I like to call envelopes: polygons surrounding the segment in a certain way.

These envelopes have extra points that give them a smooth, rounded appearance. We'll explore how to compute the union of these polygons to retain only the outer segments, resulting in visually pleasing and seamless road borders. Not only does this approach make your roads look more professional, but it also minimizes the number of clicks required in the editing process, making world building a satisfying endeavor.

Have Fun! :-) 🛣️

⭐PLAYLIST⭐
   • Self-driving Car :: Phase2️⃣

⭐FINAL APP⭐
https://radufromfinland.com/projects/...

💻CODE💻
https://github.com/gniziemazity/virtu...
3. Dynamic Viewport = follow along
4. Roads = code after this lesson

💻COPY CODE FROM HERE💻
https://radufromfinland.com/projects/...

⭐ALL PREREQUISITES⭐
   • Math & Code Fundamentals

⭐My Video on 2D Vectors⭐
   • Learn 2D Vectors with JavaScript

⭐My Video on Segment Intersection⭐
   • Segment intersection formula explained

⭐My Video on Interpolation⭐
   • Linear Interpolation (Lerp) - Math and Jav...

☕Buy me a Coffee?☕
https://www.buymeacoffee.com/radum

⚡️Join this Channel⚡️
https://youtube.com/@radu/join

⭐Timestamps⭐
00:00 Introduction
01:07 Polygon Class
04:45 Polygon Envelopes
11:04 Roundness
16:45 World Class
20:35 Finding Intersections
35:22 Polygon Union
39:22 Point in Polygon Check
43:24 Styling

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