The initial library

.gitignore

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+# Dependency directories
+node_modules/
+jspm_packages/
+three/
+.DS_Store
+src/example04
+
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+
+# TypeScript v1 declaration files
+typings/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Microbundle cache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+.env.test
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+
+# Next.js build output
+.next
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+
+# Gatsby files
+.cache/
+# Comment in the public line in if your project uses Gatsby and *not* Next.js
+# https://nextjs.org/blog/next-9-1#public-directory-support
+# public
+
+# vuepress build output
+.vuepress/dist
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port

README.md

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-# threejs-modules
+# Copper3D
+
+This library is base on three.js and ami.js.
+Current functions:
+
+- Load obj file model
+- Load mtl file model
+- Load gltf file model
+- Load MRI images
+- Multiple scenes
+- Interacting with MRI images
+- Draw circle on MRI images
+
+## How to use:
+
+```
+    import * as Copper from 'copper3d';
+    const allScenes = new Copper.Scenes(HTMLElement, 4, {0, 0, 1000});
+    allScenes.animate();
+```
+
+An example for quickly build multiple scenes:
+
+    In the HTML file, Vue or React components,
+    you should create a HTMLElement container for copper3d.
+    E.g., in index.html
+
+```
+    <div id="container_root"></div>
+```
+
+    And the css for container might be:
+
+```
+    #container_root {
+            width: 100vw;
+            height: 100vh;
+        }
+```
+
+    In JS:
+
+```
+    import * as Copper from "copper3d";
+    const container = document.querySelector("#container_root");
+    const numberOfScene = 3;
+    const allScenes = new Copper.Scenes(container, numberOfScene);
+
+    const scene1 = allScenes.getScene(0);
+    const scene2 = allScenes.getScene(1);
+    const scene3 = allScenes.getScene(2);
+
+    Copper.createTestMesh(scene1);
+    Copper.createTestMesh(scene2);
+    Copper.createTestMesh(scene3);
+
+    allScenes.animate();
+```
+
+In the end, you might see this screenshot in your browser:
+![how to use Multiple scenes](/doc-screenshorts/01_howtouse.jpg "Create Multiple scenes")
+
+## API Tutorial:
+
+See: https://linkungao.github.io/threejs-modules-1/
+
+## See examples here:
+
+See: https://copper3d-examples.herokuapp.com/
+
+## How to see examples locally:
+
+- cd Copper3D
+- npm install
+- npm run serve
+
+### The operations for draw circle function
+
+- a. Adjust the MRI image before you draw circle on it.
+- b. Enabled draw circle function in GUI panel.
+- c. If you draw circle on a wrong position, you can use delete key on your keyboard.

babel.config.js

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+module.exports = {
+  presets: ["@babel/preset-env"],
+  plugins: [
+    "@babel/plugin-transform-runtime",
+    "@babel/plugin-proposal-class-properties",
+  ],
+};