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@@ -1,5 +1,3 @@
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-'use strict';
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-
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/**
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* THREE.GCodeLoader is used to load gcode files usually used for 3D printing or CNC applications.
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*
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@@ -10,6 +8,7 @@
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* @author tentone
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* @author joewalnes
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*/
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+
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THREE.GCodeLoader = function ( manager ) {
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this.manager = ( manager !== undefined ) ? manager : THREE.DefaultLoadingManager;
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@@ -18,208 +17,214 @@ THREE.GCodeLoader = function ( manager ) {
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};
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-THREE.GCodeLoader.prototype.load = function ( url, onLoad, onProgress, onError ) {
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+THREE.GCodeLoader.prototype = {
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- var self = this;
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+ constructor: THREE.GCodeLoader,
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- var loader = new THREE.FileLoader( self.manager );
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- loader.setPath( self.path );
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- loader.load( url, function ( text ) {
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+ load: function ( url, onLoad, onProgress, onError ) {
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- onLoad( self.parse( text ) );
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+ var self = this;
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- }, onProgress, onError );
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+ var loader = new THREE.FileLoader( self.manager );
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+ loader.setPath( self.path );
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+ loader.load( url, function ( text ) {
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-};
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+ onLoad( self.parse( text ) );
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-THREE.GCodeLoader.prototype.setPath = function ( value ) {
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+ }, onProgress, onError );
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- this.path = value;
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- return this;
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+ },
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-};
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+ setPath: function ( value ) {
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-THREE.GCodeLoader.prototype.parse = function ( data ) {
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+ this.path = value;
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+ return this;
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- var state = { x: 0, y: 0, z: 0, e: 0, f: 0, extruding: false, relative: false };
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- var layers = [];
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+ },
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- var currentLayer = undefined;
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+ parse: function ( data ) {
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- var pathMaterial = new THREE.LineBasicMaterial( { color: 0xFF0000 } );
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- pathMaterial.name = 'path';
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+ var state = { x: 0, y: 0, z: 0, e: 0, f: 0, extruding: false, relative: false };
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+ var layers = [];
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- var extrudingMaterial = new THREE.LineBasicMaterial( { color: 0x00FF00 } );
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- extrudingMaterial.name = 'extruded';
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+ var currentLayer = undefined;
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- function newLayer( line ) {
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+ var pathMaterial = new THREE.LineBasicMaterial( { color: 0xFF0000 } );
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+ pathMaterial.name = 'path';
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- currentLayer = { vertex: [], pathVertex: [], z: line.z };
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- layers.push( currentLayer );
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+ var extrudingMaterial = new THREE.LineBasicMaterial( { color: 0x00FF00 } );
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+ extrudingMaterial.name = 'extruded';
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- }
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+ function newLayer( line ) {
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- //Create lie segment between p1 and p2
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- function addSegment( p1, p2 ) {
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+ currentLayer = { vertex: [], pathVertex: [], z: line.z };
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+ layers.push( currentLayer );
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- if ( currentLayer === undefined ) {
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+ }
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- newLayer( p1 );
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+ //Create lie segment between p1 and p2
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+ function addSegment( p1, p2 ) {
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- }
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+ if ( currentLayer === undefined ) {
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- if ( line.extruding ) {
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+ newLayer( p1 );
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- currentLayer.vertex.push( p1.x, p1.y, p1.z );
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- currentLayer.vertex.push( p2.x, p2.y, p2.z );
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+ }
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- } else {
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+ if ( line.extruding ) {
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- currentLayer.pathVertex.push( p1.x, p1.y, p1.z );
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- currentLayer.pathVertex.push( p2.x, p2.y, p2.z );
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+ currentLayer.vertex.push( p1.x, p1.y, p1.z );
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+ currentLayer.vertex.push( p2.x, p2.y, p2.z );
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+
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+ } else {
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+
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+ currentLayer.pathVertex.push( p1.x, p1.y, p1.z );
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+ currentLayer.pathVertex.push( p2.x, p2.y, p2.z );
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+
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+ }
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}
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- }
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+ function delta( v1, v2 ) {
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- function delta( v1, v2 ) {
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+ return state.relative ? v2 : v2 - v1;
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- return state.relative ? v2 : v2 - v1;
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+ }
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- }
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+ function absolute( v1, v2 ) {
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- function absolute( v1, v2 ) {
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+ return state.relative ? v1 + v2 : v2;
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- return state.relative ? v1 + v2 : v2;
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+ }
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- }
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+ var lines = data.replace( /;.+/g, '' ).split( '\n' );
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- var lines = data.replace( /;.+/g, '' ).split( '\n' );
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+ for ( var i = 0; i < lines.length; i ++ ) {
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- for ( var i = 0; i < lines.length; i ++ ) {
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+ var tokens = lines[ i ].split( ' ' );
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+ var cmd = tokens[ 0 ].toUpperCase();
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- var tokens = lines[ i ].split( ' ' );
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- var cmd = tokens[ 0 ].toUpperCase();
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+ //Argumments
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+ var args = {};
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+ tokens.splice( 1 ).forEach( function ( token ) {
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- //Argumments
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- var args = {};
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- tokens.splice( 1 ).forEach( function ( token ) {
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+ if ( token[ 0 ] !== undefined ) {
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- if ( token[ 0 ] !== undefined ) {
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+ var key = token[ 0 ].toLowerCase();
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+ var value = parseFloat( token.substring( 1 ) );
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+ args[ key ] = value;
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- var key = token[ 0 ].toLowerCase();
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- var value = parseFloat( token.substring( 1 ) );
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- args[ key ] = value;
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+ }
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- }
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+ } );
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- } );
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+ //Process commands
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+ //G0/G1 – Linear Movement
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+ if ( cmd === 'G0' || cmd === 'G1' ) {
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- //Process commands
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- //G0/G1 – Linear Movement
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- if ( cmd === 'G0' || cmd === 'G1' ) {
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+ var line = {
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+ x: args.x !== undefined ? absolute( state.x, args.x ) : state.x,
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+ y: args.y !== undefined ? absolute( state.y, args.y ) : state.y,
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+ z: args.z !== undefined ? absolute( state.z, args.z ) : state.z,
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+ e: args.e !== undefined ? absolute( state.e, args.e ) : state.e,
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+ f: args.f !== undefined ? absolute( state.f, args.f ) : state.f,
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+ };
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- var line = {
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- x: args.x !== undefined ? absolute( state.x, args.x ) : state.x,
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- y: args.y !== undefined ? absolute( state.y, args.y ) : state.y,
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- z: args.z !== undefined ? absolute( state.z, args.z ) : state.z,
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- e: args.e !== undefined ? absolute( state.e, args.e ) : state.e,
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- f: args.f !== undefined ? absolute( state.f, args.f ) : state.f,
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- };
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+ //Layer change detection is or made by watching Z, it's made by watching when we extrude at a new Z position
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+ if ( delta( state.e, line.e ) > 0 ) {
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- //Layer change detection is or made by watching Z, it's made by watching when we extrude at a new Z position
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- if ( delta( state.e, line.e ) > 0 ) {
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+ line.extruding = delta( state.e, line.e ) > 0;
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- line.extruding = delta( state.e, line.e ) > 0;
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+ if ( currentLayer == undefined || line.z != currentLayer.z ) {
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- if ( currentLayer == undefined || line.z != currentLayer.z ) {
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+ newLayer( line );
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- newLayer( line );
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+ }
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}
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- }
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+ addSegment( state, line );
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+ state = line;
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- addSegment( state, line );
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- state = line;
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+ } else if ( cmd === 'G2' || cmd === 'G3' ) {
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- } else if ( cmd === 'G2' || cmd === 'G3' ) {
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+ //G2/G3 - Arc Movement ( G2 clock wise and G3 counter clock wise )
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+ //console.warn( 'THREE.GCodeLoader: Arc command not supported' );
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- //G2/G3 - Arc Movement ( G2 clock wise and G3 counter clock wise )
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- //console.warn( 'THREE.GCodeLoader: Arc command not supported' );
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+ } else if ( cmd === 'G90' ) {
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- } else if ( cmd === 'G90' ) {
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+ //G90: Set to Absolute Positioning
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+ state.relative = false;
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- //G90: Set to Absolute Positioning
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- state.relative = false;
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+ } else if ( cmd === 'G91' ) {
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- } else if ( cmd === 'G91' ) {
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+ //G91: Set to state.relative Positioning
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+ state.relative = true;
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- //G91: Set to state.relative Positioning
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- state.relative = true;
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+ } else if ( cmd === 'G92' ) {
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- } else if ( cmd === 'G92' ) {
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+ //G92: Set Position
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+ var line = state;
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+ line.x = args.x !== undefined ? args.x : line.x;
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+ line.y = args.y !== undefined ? args.y : line.y;
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+ line.z = args.z !== undefined ? args.z : line.z;
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+ line.e = args.e !== undefined ? args.e : line.e;
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+ state = line;
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- //G92: Set Position
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- var line = state;
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- line.x = args.x !== undefined ? args.x : line.x;
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- line.y = args.y !== undefined ? args.y : line.y;
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- line.z = args.z !== undefined ? args.z : line.z;
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- line.e = args.e !== undefined ? args.e : line.e;
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- state = line;
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+ } else {
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- } else {
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+ //console.warn( 'THREE.GCodeLoader: Command not supported:' + cmd );
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- //console.warn( 'THREE.GCodeLoader: Command not supported:' + cmd );
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+ }
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}
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- }
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+ function addObject( vertex, extruding ) {
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- function addObject( vertex, extruding ) {
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+ var geometry = new THREE.BufferGeometry();
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+ geometry.addAttribute( 'position', new THREE.Float32BufferAttribute( vertex, 3 ) );
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- var geometry = new THREE.BufferGeometry();
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- geometry.addAttribute( 'position', new THREE.Float32BufferAttribute( vertex, 3 ) );
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+ var segments = new THREE.LineSegments( geometry, extruding ? extrudingMaterial : pathMaterial );
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+ segments.name = 'layer' + i;
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+ object.add( segments );
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- var segments = new THREE.LineSegments( geometry, extruding ? extrudingMaterial : pathMaterial );
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- segments.name = 'layer' + i;
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- object.add( segments );
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+ }
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- }
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+ var object = new THREE.Group();
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+ object.name = 'gcode';
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- var object = new THREE.Group();
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- object.name = 'gcode';
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+ if ( this.splitLayer ) {
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- if ( this.splitLayer ) {
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+ for ( var i = 0; i < layers.length; i ++ ) {
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- for ( var i = 0; i < layers.length; i ++ ) {
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+ var layer = layers[ i ];
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+ addObject( layer.vertex, true );
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+ addObject( layer.pathVertex, false );
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- var layer = layers[ i ];
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- addObject( layer.vertex, true );
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- addObject( layer.pathVertex, false );
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+ }
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- }
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+ } else {
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+
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+ var vertex = [], pathVertex = [];
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- } else {
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+ for ( var i = 0; i < layers.length; i ++ ) {
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- var vertex = [], pathVertex = [];
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+ var layer = layers[ i ];
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- for ( var i = 0; i < layers.length; i ++ ) {
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+ vertex = vertex.concat( layer.vertex );
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+ pathVertex = pathVertex.concat( layer.pathVertex );
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- var layer = layers[ i ];
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+ }
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- vertex = vertex.concat( layer.vertex );
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- pathVertex = pathVertex.concat( layer.pathVertex );
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+ addObject( vertex, true );
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+ addObject( pathVertex, false );
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}
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- addObject( vertex, true );
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- addObject( pathVertex, false );
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-
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- }
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+ object.quaternion.setFromEuler( new THREE.Euler( - Math.PI / 2, 0, 0 ) );
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- object.quaternion.setFromEuler( new THREE.Euler( - Math.PI / 2, 0, 0 ) );
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+ return object;
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- return object;
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+ }
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};
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