99 lines
1.9 KiB
JavaScript
99 lines
1.9 KiB
JavaScript
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/**
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* @author WestLangley / http://github.com/WestLangley
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*
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*/
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THREE.LineGeometry = function () {
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THREE.LineSegmentsGeometry.call( this );
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this.type = 'LineGeometry';
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};
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THREE.LineGeometry.prototype = Object.assign( Object.create( THREE.LineSegmentsGeometry.prototype ), {
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constructor: THREE.LineGeometry,
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isLineGeometry: true,
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setPositions: function ( array ) {
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// converts [ x1, y1, z1, x2, y2, z2, ... ] to pairs format
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var length = array.length - 3;
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var points = new Float32Array( 2 * length );
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for ( var i = 0; i < length; i += 3 ) {
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points[ 2 * i ] = array[ i ];
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points[ 2 * i + 1 ] = array[ i + 1 ];
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points[ 2 * i + 2 ] = array[ i + 2 ];
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points[ 2 * i + 3 ] = array[ i + 3 ];
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points[ 2 * i + 4 ] = array[ i + 4 ];
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points[ 2 * i + 5 ] = array[ i + 5 ];
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}
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THREE.LineSegmentsGeometry.prototype.setPositions.call( this, points );
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return this;
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},
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setColors: function ( array ) {
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// converts [ r1, g1, b1, r2, g2, b2, ... ] to pairs format
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var length = array.length - 3;
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var colors = new Float32Array( 2 * length );
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for ( var i = 0; i < length; i += 3 ) {
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colors[ 2 * i ] = array[ i ];
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colors[ 2 * i + 1 ] = array[ i + 1 ];
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colors[ 2 * i + 2 ] = array[ i + 2 ];
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colors[ 2 * i + 3 ] = array[ i + 3 ];
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colors[ 2 * i + 4 ] = array[ i + 4 ];
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colors[ 2 * i + 5 ] = array[ i + 5 ];
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}
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THREE.LineSegmentsGeometry.prototype.setColors.call( this, colors );
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return this;
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},
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fromLine: function ( line ) {
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var geometry = line.geometry;
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if ( geometry.isGeometry ) {
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this.setPositions( geometry.vertices );
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} else if ( geometry.isBufferGeometry ) {
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this.setPositions( geometry.position.array ); // assumes non-indexed
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}
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// set colors, maybe
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return this;
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},
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copy: function ( /* source */ ) {
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// todo
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return this;
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}
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} );
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