gcode-studio/gcode-studio.html at master · acruikshank/gcode-studio · GitHub

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<html>
<head>
  <title>G-Code Studio</title>
  <style>
    html { height: 100%; }
    body { height: 100%; margin: 0; background: #222; }
    #side { position: absolute; width: 50%; height: 66%; top: 0; left:0; }
    #top { position: absolute; width: 50%; height: 66%; top: 0; right:0; }
    #editor {
      position: absolute; width: 92%; height: 33%; bottom: 0; left:0;
      background-color: #1f1f1f;
      opacity: .8;
      display: none;
    }

    #editor .ace_gutter {
      background-color: #222;
      background-image: none;
      border-right: none;
      border-left: none;
      color: #444;
    }
    #editor .ace_scroller {
      box-shadow: inset 0 0 5px rgba(0,0,0,.5);
      -webkit-filter: opacity(.8) sepia(100%) hue-rotate(150deg) grayscale(20%);
      -moz-filter: opacity(.8) sepia(100%) hue-rotate(150deg) grayscale(20%);
    }
    #editor .ace_indent-guide {
      opacity:0;
    }
    #editor .ace_gutter-cell {
      background-color: #222;
    }
    #editor .ace_cursor {
      color: #fff;
    }

    #buttons {
      position: absolute;
      width: 8%;
      height: 33%;
      bottom:0;
      right: 0;
    }

    a, button {
      display: block;
      padding: 0;
      margin: 0 auto 10px;
      font-family: Andale Mono, Helvetica;
      text-align: center;
      text-decoration: none;
      font-size: 3vw;
      background: none;
      border: 1px solid #9cf;
      border-radius: 3px;
      color: #9cf;
      height: 40px;
      width: 80px;
      font-size: 1vw;
      line-height: 38px;
      position: relative;
      opacity: .4;
      transition: all .5s ease;
      -webkit-transition: all .5s ease;
      -moz-transition: all .5s ease;
    }

    a:hover, button:hover {
      cursor: pointer;
      background-color: #056;
      color: #fff;
      opacity: 1;
    }

    .file {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      opacity: 0;
    }

    .file:hover {
      cursor: pointer;
    }

  </style>
  <script src="http://cdnjs.cloudflare.com/ajax/libs/ace/1.1.3/ace.js"></script>
</head>
<body>
<canvas id="side"></canvas>
<canvas id="top"></canvas>
<div id="editor">/* G-Code Studio
   Enter transforms in this editor and press Command-Enter to execute them.
   Each G0 or G1 command will be run through this code. Modifing any of the
   variable will result in a modification to the corresponding G-Code. The
   variables are:
   X, Y, Z: The x, y and z destination of the print nozzle.
   E: The extruder quantity at the end of this command.
   G: 1 or 0 to indicate the type of movement.
   context: set variables on this object to keep state between commands.
 */
</div>
<div id="buttons">
  <button>open
    <input type="file" class="file" id="open"/>
  </button>
  <a href="" id="save">save</a>
</div>
</body>
<script>

/* TODO:
- Select Top filter from front
- Workers for side rendering
- On screen error messaging
- Loading animation
- Emit gcode
- Delete line
*/

var renderer = Renderer([]);
initEditor(renderer);

document.querySelector('#open').addEventListener('change', function(e) {
  var file;
  if (e.target.files && (file=e.target.files[0]) && file.name.match(/\.gcode$/)) {
    var reader = new FileReader();
    renderer.setName(file.name);
    reader.onload = compose(renderer.load,parseGcode, function(e) { return e.target.result; });
    reader.readAsText(file);
  }
}, false);

document.querySelector('#save').addEventListener('click', handler(renderer.save), false);

function parseGcode(code) {
  var start = new Date();
  var point = {};
  var points = [];
  lines(code, function(line) {
    var m = line.match(/^G([01])\s+(.*?)(;.*)?$/m);
    if (m) {
      point = {G:parseInt(m[1]), X:point.X, Y:point.Y, Z:point.Z, E:point.E, F:point.F, keys:''};
      m[2].replace(/(\w)(-?\d+(\.\d+)?)/g, function(m,k,n) {
        point.keys += k;
        point[k] = parseFloat(n); return '';
      });
      points.push(point);
    } else {
      points.push(line + '\n');
    }
  });
  console.log('Parse:', new Date().getTime() - start.getTime() )
  return points;
}

function Renderer(points) {
  var rotateInterval;
  var filename = '';
  var transformed;

  function update(points) {
    transformed = points;
    var mins = comparePoints(points.slice(10,points.length-10),undefMin);
    var maxes = comparePoints(points.slice(10,points.length-10),undefMax);
    var centers = keyMap(function(k) { return lerp(mins[k],maxes[k],.5)}, ['X','Y','Z']);

    var XMARGIN = 60;
    var YMARGIN = 100;

    var top = initCanvas('top',2, -XMARGIN);
    var xRange = maxes.X - mins.X;
    var yRange = maxes.Y - mins.Y;

    var theta = 0;
    var SCALE = aspectScale( xRange, yRange, top.width - XMARGIN, top.height - 2*YMARGIN );

    renderTop(top.ctx, points, SCALE, centers, mins, maxes);

    var side = initCanvas('side',1,XMARGIN);
    var zRange = maxes.Z - mins.Z;
    var xyRange = Math.max(xRange, yRange);
    var SCALE = aspectScale( xyRange, zRange, side.width - XMARGIN, side.height - 2*YMARGIN );

    clearInterval(rotateInterval);
    rotateInterval = setInterval(function() {
      side.ctx.clearRect(-side.width/2 - XMARGIN,-side.height/2,side.width,side.height);
      renderSide(side.ctx, points, SCALE, centers, mins, maxes, theta);
      theta += Math.PI/60;
    }, 200);
  }

  function load(newPoints) {
    points = newPoints;
    update(points);
  }

  function save() {
    var gcode = transformed.map(function(line) {
      if (typeof line == 'string')
        return line;
      return 'G'+line.G+' '+line.keys.split('').map(function(k) {return k+line[k].toFixed(5)}).join(' ')+'\n';
    });

    var a = document.createElement('a');
    a.download = filename;
    a.href = URL.createObjectURL(new Blob(gcode, {type:'text/plain'}));
    a.click();
  }

  return {
    points: function() { return points; },
    update: update,
    load: load,
    save: save,
    setName: function(name) { filename = name }
  }
}

function initCanvas(id, scale, xOffset) {
  var canvas = document.getElementById(id);
  var w = canvas.width = canvas.offsetWidth * (scale||1);
  var h = canvas.height = canvas.offsetHeight * (scale||1);
  var ctx = canvas.getContext('2d');
  ctx.translate( w/2 + xOffset, h/2);

  return {ctx:ctx, width:w, height:h};
}

function renderSide(ctx, points, scale, centers, mins, maxes, theta) {
  ctx.beginPath();
  ctx.lineWidth = .15;
  ctx.strokeStyle = 'rgba(0,200,255,.8)';
  xComponent = Math.cos(theta) * scale;
  yComponent = -Math.sin(theta) * scale;

  for (var i=0,point; (point = points[i]) != null; i++) if (typeof point=='object') {
    if (point.X != undefined && point.Y != undefined) {
      ctx[point.G?'lineTo':'moveTo'](
        (point.X-centers.X)*xComponent + (point.Y-centers.Y)*yComponent,
        -(point.Z-centers.Z)*scale );
    }
  }
  ctx.stroke();

  renderHeightMetric( ctx, -ctx.canvas.width/2 - 40, maxes.Z, mins.Z, scale, 1 );
}

function renderTop(ctx, points, scale, centers, mins, maxes) {
  ctx.beginPath();
  ctx.lineWidth = .25;
  ctx.strokeStyle = 'rgba(0,200,255,.4)';

  for (var i=0,o={},point; (point = points[i]) != null; i++) if (typeof point=='object') {
    if (point.X != undefined && point.Y != undefined)
      ctx[point.G?'lineTo':'moveTo'](
        (point.X-centers.X)*scale,
        -(point.Y-centers.Y)*scale );
  }
  ctx.stroke();

  renderHeightMetric( ctx, ctx.canvas.width/2 - 40, maxes.Y, mins.Y, scale, 2 );
  renderWidthMetric( ctx, ctx.canvas.height/2 - 20, maxes.X, mins.X, scale, 2 );
}

function renderHeightMetric( ctx, x, top, bottom, scale, res ) {
  var tick = 5 * res;
  var upperY = (bottom-top)*scale/2, lowerY = (top-bottom)*scale/2;

  ctx.beginPath();
  ctx.moveTo(x, upperY ); ctx.lineTo(x, lowerY );
  ctx.moveTo(x-tick, upperY ); ctx.lineTo(x+tick, upperY );
  ctx.moveTo(x-tick, lowerY ); ctx.lineTo(x+tick, lowerY );

  ctx.fillStyle = ctx.strokeStyle = 'rgba(0,200,255,.6)';
  ctx.lineWidth = .5 * res;
  ctx.stroke();

  ctx.textAlign = 'center';
  ctx.font = (10*res)+'px Andale Mono,Helvetica';
  ctx.fillText( top.toFixed(1), x, upperY-8*res );
  ctx.fillText( bottom.toFixed(1), x, lowerY+14*res );
}

function renderWidthMetric( ctx, y, right, left, scale, res ) {
  var tick = 5 * res;
  var leftX = (left-right)*scale/2, rightX = (right-left)*scale/2;

  ctx.beginPath();
  ctx.moveTo( leftX, y ); ctx.lineTo( rightX, y );
  ctx.moveTo( leftX, y-tick ); ctx.lineTo( leftX, y+tick );
  ctx.moveTo( rightX, y-tick ); ctx.lineTo( rightX, y+tick );

  ctx.fillStyle = ctx.strokeStyle = 'rgba(0,200,255,.6)';
  ctx.lineWidth = .5 * res;
  ctx.stroke();

  ctx.font = (10*res)+'px Andale Mono,Helvetica';
  ctx.textAlign = 'right';
  ctx.fillText( left.toFixed(1), leftX - 7*res, y + 2.5*res );
  ctx.textAlign = 'left';
  ctx.fillText( right.toFixed(1), rightX + 7*res, y + 2.5*res );
}


function initEditor(renderer) {
  document.getElementById('editor').setAttribute('style', 'display:block;')
  var editor = ace.edit("editor");
  editor.setTheme("ace/theme/solarized_dark");
  editor.getSession().setMode("ace/mode/javascript");
  editor.setShowPrintMargin(false);
  editor.getSession().setUseSoftTabs(true);
  editor.setFontSize(14);
  editor.commands.addCommand({
       name: 'transform',
       bindKey: {win: 'Cmd-Enter',  mac: 'Cmd-Enter'},
       exec: transform(renderer, editor)
   });
  editor.renderer.setPadding(15);
  editor.renderer.setScrollMargin(15);
  editor.clearSelection();
  editor.session.setOption("useWorker", false);
}

function transform(renderer, editor) {
  return function() {
    var context = {};
    try {
      var transformer = new Function('X','Y','Z','E','F','G','context',
        editor.getValue() +
        '; return {X:X, Y:Y, Z:Z, E:E, F:F, G:G};');
      var points = renderer.points();
      for (var i=0,transformed=[],p; (p = points[i]) != null; i++) {
        if (typeof p=='object') {
          var newPoint = transformer(p.X,p.Y,p.Z,p.E,p.F,p.G,context);
          newPoint.keys = p.keys;
          transformed.push(newPoint);
        } else {
          transformed.push(p);
        }
      }

      renderer.update(transformed);
    } catch (e) {
      // TODO: show error on screen
      console.error( e.stack );
      return;
    }
  }
}

function lines(str, cb) {
  var re = /\s*\n\r?\s*/g, startIndex=0, m;
  while (m = re.exec(str))
    cb( str.substring(startIndex, startIndex = m.index) );
  cb(str.substring( startIndex, str.length ) );
}

function aspectScale( iWidth, iHeight, oWidth, oHeight) {
  return iWidth*oHeight > iHeight*oWidth ? oWidth/iWidth : oHeight/iHeight;
}

function keyMap(f,keys) { for (var i=0,o={},k; k=keys[i]; i++) o[k]=f(k); return o; }
function comparePoints(points,f) {
  for (var i=0,o={},p; (p = points[i]) != null; i++) if (typeof p=='object') {
    o.X = f(o.X, p.X);
    o.Y = f(o.Y, p.Y);
    o.Z = f(o.Z, p.Z);
  }
  return o;
}
function undefMax(a,b) { return a == null ? b : (b == null ? a : Math.max(a,b)); }
function undefMin(a,b) { return a == null ? b : (b == null ? a : Math.min(a,b)); }
function lerp(a,b,x) { return a + x*(b-a); }

function handler(f) { return function(e) { e.preventDefault(); f(e); } }

function compose(f1, f2, etc) {
  if (arguments.length < 2) return f1;
  var composed = compose.apply(null, Array.prototype.slice.call(arguments,0,arguments.length-1));
  var last = arguments[arguments.length-1];
  return function(x) { return composed(last(x)); }
}


</script>
</html>