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demo.html
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demo.html
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<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title></title></head><body>
<script type="module">
// #region IMPORTS
import Starter, { THREE } from './lib/starter.js';
import Util from './lib/Util.js';
import DynLineMesh from './lib/DynLineMesh.js';
import ShapePointsMesh from './lib/ShapePointsMesh.js';
import PixelFontMesh from './lib/PixelFontMesh.js';
import IrregularSphericalGrid from './grid/IrregularSphericalGrid.js';
import IrregularCircleGrid from './grid/IrregularCircleGrid.js';
import IrregularHexGrid from './grid/IrregularHexGrid.js';
import{ vec3_norm_scale } from './lib/Maths.js';
// #endregion
// #region MAIN
let App;
let Debug = {};
let Ref = {};
window.addEventListener( "load", async _=>{
App = new Starter( { webgl2:true, grid:true } );
App.setCamera( 0, 40, 11, [0,0.0,-1] );
// App.add( ( Debug.ln = new DynLineMesh() ) );
// App.add( ( Debug.pnt = new ShapePointsMesh() ) );
App.add( ( Debug.px = new PixelFontMesh() ) );
Debug.px.setRes( 2, 1 );
Debug.px.position.y = 0.25;
Debug.px.scale.fromArray( [0.5,0.5,0.5] );
Debug.px.reset().add( "00" );
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
const sphere = IrregularSphericalGrid.build( 2, 4, 0, 0.1, 100 );
const sphereRend = new RenderIrrGrid();
setRadius( sphere, 1.95 );
sphereRend.genMesh( sphere );
sphereRend.wireFrame( sphere );
sphereRend.grp.position.fromArray( [0,2,-2] );
// --------------------------------------
const circle = IrregularCircleGrid.build( 2, 4, 0, 0.4, 100, false );
const circleRend = new RenderIrrGrid( [0,0.001,0]);
circleRend.genMesh( circle );
circleRend.wireFrame( circle );
circleRend.grp.position.fromArray( [-2.5,0,0] );
// --------------------------------------
const hex = IrregularHexGrid.build( 2, 5, 0, 0.1, 100, 0 );
const hexRend = new RenderIrrGrid( [0,0.001,0]);
hexRend.genMesh( hex );
hexRend.wireFrame( hex );
hexRend.grp.position.fromArray( [2.5,0,0] );
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
let loop = 0;
setInterval( ()=>{
IrregularSphericalGrid._relaxFaces( sphere, 2, 1, 0.1 );
sphereRend.wireFrame( sphere );
IrregularCircleGrid._relaxFaces( circle, 1, 0.2 );
circleRend.wireFrame( circle );
IrregularHexGrid._relax_Forces( hex, 1, 0.2 );
hexRend.wireFrame( hex );
Debug.px.reset().add( (++loop).toString() );
}, 1000 );
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
App.render();
});
//#endregion
// #region DEBUG
function setRadius( grid, radius ){
for( let v of grid.vertices ) vec3_norm_scale( v.pos, v.pos, radius );
}
// #endregion
class RenderIrrGrid{
constructor( offset=[0,0,0] ){
this.ln = new DynLineMesh();
this.pnt = new ShapePointsMesh();
this.grp = new THREE.Group();
this.mesh = null;
this.pnt.position.fromArray( offset );
this.ln.position.fromArray( offset );
this.grp.add( this.ln );
this.grp.add( this.pnt );
App.add( this.grp );
}
wireFrame( top ){
this.ln.reset();
this.pnt.reset();
for( const e of top.vertices ) this.pnt.add( e.pos, 0x00ff00, 2 );
for( const f of top.faces ){
let edg = top.halfEdges[ f.halfEdges[0] ];
let len = f.halfEdges.length;
for( let i=1; i <= len; i++ ){
let ii = i % len;
let nex = top.halfEdges[ f.halfEdges[ ii ] ];
this.ln.add( top.getVertPos( edg.vertex ), top.getVertPos( nex.vertex ), 0x707070 );
edg = nex;
}
}
}
genMesh( top ){
const verts = top.flattenVertices();
const ind = top.flattenIndices();
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
const bGeo = new THREE.BufferGeometry();
bGeo.setAttribute( "position", new THREE.BufferAttribute( new Float32Array( verts ), 3 ) );
if( ind && ind.length > 0 ) bGeo.setIndex( ind );
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
const mat = new THREE.MeshPhongMaterial( { color:0x009999 } ); // ,side:THREE.DoubleSide
const mesh = new THREE.Mesh( bGeo, mat );
this.mesh = mesh;
this.grp.add( mesh );
}
}
</script>
</body></html>