IFC.js - Web Workers & Scene Saving
  • Welcome
  • TL;DR
  • introduction
    • How To Use This Website
    • Demo
    • IFC Sample File
  • What is IFC?
    • Introduction
    • What is IFC?
      • EXPRESS
      • STEP
  • IFC.js
    • Introduction
    • What is IFC.js?
  • Web Worker Example
    • Introduction
    • Single Web Worker Example
    • Multi Web Worker Example
    • Results
  • Developer Guide - Step by Step
    • Introduction
    • Step by Step
      • Start a New Example
      • Main JS file
      • Implement a Web Worker
      • Parse the IFC
      • Build a Web Worker Bundle
      • Parse the IFC, again
      • Dealing with the mainObject
      • Build the Geometry
    • All Together Wow
  • Saving the Scene
    • Introduction
    • IndexedDB
    • Rebuilding the Scene
    • Result
  • Optimization
    • Introduction
    • 3D Basics
    • Three.js Basics
    • First Draft
    • Merge Geometries
    • Hide Objects on Camera Movement
    • Object Picker
    • Result
  • Additional Notes
    • Introduction
    • Configure rollup.js
    • Support Modern Browsers
    • Improve Parsing Performance
    • Untitled
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  1. Saving the Scene

Introduction

Let's ask ourselves this simple question:

Why do we need to save the scene?

Let's say that we have a large file. Assume that it takes >1min to parse the file. Now, let's assume that we want to view the result many times. We might even turn off our computer in-between viewings.

How can we view the file, without re-parsing it?

One might suggest using localStorage (read more here). However, localStorage is limited to about 5MB and can contain only strings and is not accessible from Web Workers (1).

I suggest using IndexedDB instead. IndexedDB is a way for you to persistently store data inside a user's browser (2). Read more here.

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Last updated 4 years ago