analyzer.js

util = require('util');

Interpreter = require('gcode').Interpreter;

var GCodeAnalyzer = function() {
    Interpreter.call(this);
    this.x = 0.0;
    this.y = 0.0;
    this.z = 0.0;
    this.min_dist = 100000000000;
    this.line_count = 1;
    this.circle_count = 0;
    this.stats = {0:0, 1:0, 10:0, 100:0}
}
util.inherits(GCodeAnalyzer, Interpreter);

GCodeAnalyzer.prototype.setPosition = function(x,y,z) {
    var new_x = (x === undefined) ? this.x : x;
    var new_y = (y === undefined) ? this.y : y;
    var new_z = (z === undefined) ? this.z : z;
    
    var dx = new_x - this.x;
    var dy = new_y - this.y;
    var dz = new_z - this.z;

    dist = Math.sqrt(dx*dx + dy*dy + dz*dz);

    if(dist === 0) {
        this.stats[0] += 1;
    } else if(dist < 0.0001) {
        this.stats[1] += 1;
    } else if(dist < 0.001) {
        this.stats[10] += 1;
    } else if(dist < 0.010) {
        this.stats[100] += 1;
    }

    this.x = new_x;
    this.y = new_y;
    this.z = new_z;
}

GCodeAnalyzer.prototype.G0 = function(args) {
    this.setPosition(args.X, args.Y, args.Z);
}

GCodeAnalyzer.prototype.G1 = function(args) {
    this.setPosition(args.X, args.Y, args.Z);
}

GCodeAnalyzer.prototype.G2 = function(args) {
    this.circle_count += 1;
}

var filename = process.argv[2];

analyzer = new GCodeAnalyzer();

analyzer.interpretFile(filename, function(err, lines) {
    console.log("Total circles in file: " + this.circle_count);
    console.log("    Zero length moves: " + this.stats[0]);
    console.log("       Moves < 0.1mil: " + this.stats[1]);
    console.log("       Moves < 1.0mil: " + this.stats[10]);
    console.log("      Moves < 10.0mil: " + this.stats[100]);
});