{"modules":{"0.2535609410541485":{"definition":"//\n// step\n//\n// Neil Gershenfeld \n// (c) Massachusetts Institute of Technology 2016\n// \n// This work may be reproduced, modified, distributed, performed, and \n// displayed for any purpose, but must acknowledge the fab modules \n// project. Copyright is retained and must be preserved. The work is \n// provided as is; no warranty is provided, and users accept all \n// liability.\n//\n// closure\n//\n(function(){\n//\n// module globals\n//\nvar mod = {}\n//\n// name\n//\nvar name = 'z scan'\n//\n// initialization\n//\nvar init = function() {\n   mod.value.value = ''\n   mod.start.value = 0\n   mod.stop.value = 10\n   mod.step.value = 1\n   }\n//\n// inputs\n//\nvar inputs = {\n   start:{type:'event',\n      event:function(evt) {\n         mod.nextvalue = parseFloat(mod.start.value)\n         update_value()\n         }},\n   step:{type:'event',\n      event:function(evt) {\n         update_value()\n         }}}\n//\n// outputs\n//\nvar outputs = {\n   begin:{type:'event',\n      event:function() {\n         mods.output(mod,'begin','begin')\n         }},\n   value:{type:'number',\n      event:function() {\n         mods.output(mod,'value',parseFloat(mod.value.value))\n         }},\n   end:{type:'event',\n      event:function() {\n         mods.output(mod,'end','end')\n         }}}\n//\n// interface\n//\nvar interface = function(div) {\n   mod.div = div\n   div.appendChild(document.createTextNode('value: '))\n   input = document.createElement('input')\n      input.type = 'text'\n      input.size = 6\n      div.appendChild(input)\n      mod.value = input\n   div.appendChild(document.createElement('br'))\n   div.appendChild(document.createTextNode('start: '))\n   input = document.createElement('input')\n      input.type = 'text'\n      input.size = 6\n      div.appendChild(input)\n      mod.start = input\n   div.appendChild(document.createElement('br'))\n   div.appendChild(document.createTextNode('stop: '))\n   input = document.createElement('input')\n      input.type = 'text'\n      input.size = 6\n      div.appendChild(input)\n      mod.stop = input\n   div.appendChild(document.createElement('br'))\n   div.appendChild(document.createTextNode('step: '))\n   input = document.createElement('input')\n      input.type = 'text'\n      input.size = 6\n      div.appendChild(input)\n      mod.step = input\n   }\n//\n// local functions\n//\nfunction update_value() {\n   var value = mod.nextvalue\n   mod.value.value = value\n   var start = parseFloat(mod.start.value)\n   var stop  = parseFloat(mod.stop.value)\n   var step  = parseFloat(mod.step.value)\n   if (value == start)\n      outputs.begin.event()\n   if (start < stop) {\n      if (value <= stop) {\n         outputs.value.event()\n         mod.nextvalue = value + step\n         }\n      else {\n         mod.value.value = ''\n         outputs.end.event()\n         }\n      }\n   else {\n      if (value >= stop) {\n         outputs.value.event()\n         mod.nextvalue = value + step\n         }\n      else {\n         mod.value.value = ''\n         outputs.end.event()\n         }\n      }\n   }\n//\n// return values\n//\nreturn ({\n   mod:mod,\n   name:name,\n   init:init,\n   inputs:inputs,\n   outputs:outputs,\n   interface:interface\n   })\n}())\n","top":"271","left":"233","inputs":{},"outputs":{}},"0.9339870295565246":{"definition":"//\n// step and delay\n//\n// Neil Gershenfeld \n// (c) Massachusetts Institute of Technology 2016\n// \n// This work may be reproduced, modified, distributed, performed, and \n// displayed for any purpose, but must acknowledge the fab modules \n// project. Copyright is retained and must be preserved. The work is \n// provided as is; no warranty is provided, and users accept all \n// liability.\n//\n// closure\n//\n(function(){\n//\n// module globals\n//\nvar mod = {}\n//\n// name\n//\nvar name = 'theta scan'\n//\n// initialization\n//\nvar init = function() {\n   mod.value.value = ''\n   mod.start.value = 0\n   mod.stop.value = 10\n   mod.step.value = 1\n   mod.delay.value = 0.1\n   mod.timeout == ''\n   }\n//\n// inputs\n//\nvar inputs = {\n   start:{type:'event',\n      event:function(evt) {\n         mod.nextvalue = parseFloat(mod.start.value)\n         update_value()\n         }}}\n//\n// outputs\n//\nvar outputs = {\n   begin:{type:'event',\n      event:function() {\n         mods.output(mod,'begin','begin')\n         }},\n   value:{type:'number',\n      event:function() {\n         mods.output(mod,'value',parseFloat(mod.value.value))\n         }},\n   end:{type:'event',\n      event:function() {\n         mods.output(mod,'end','end')\n         }}}\n//\n// interface\n//\nvar interface = function(div) {\n   mod.div = div\n   div.appendChild(document.createTextNode('value: '))\n   input = document.createElement('input')\n      input.type = 'text'\n      input.size = 6\n      div.appendChild(input)\n      mod.value = input\n   div.appendChild(document.createElement('br'))\n   div.appendChild(document.createTextNode('start: '))\n   input = document.createElement('input')\n      input.type = 'text'\n      input.size = 6\n      div.appendChild(input)\n      mod.start = input\n   div.appendChild(document.createElement('br'))\n   div.appendChild(document.createTextNode('stop: '))\n   input = document.createElement('input')\n      input.type = 'text'\n      input.size = 6\n      div.appendChild(input)\n      mod.stop = input\n   div.appendChild(document.createElement('br'))\n   div.appendChild(document.createTextNode('step: '))\n   input = document.createElement('input')\n      input.type = 'text'\n      input.size = 6\n      div.appendChild(input)\n      mod.step = input\n   div.appendChild(document.createElement('br'))\n   div.appendChild(document.createTextNode('delay (s): '))\n   input= document.createElement('input')\n      input.type = 'text'\n      input.size = 6\n      div.appendChild(input)\n      mod.delay = input\n   div.appendChild(document.createElement('br'))\n   var btn = document.createElement('button')\n      btn.style.padding = mods.ui.padding\n      btn.style.margin = 1\n      btn.appendChild(document.createTextNode('start'))\n      btn.addEventListener('click',function(){\n         mod.nextvalue = parseFloat(mod.start.value)\n         update_value()\n         })\n      div.appendChild(btn)\n   var btn = document.createElement('button')\n      btn.style.padding = mods.ui.padding\n      btn.style.margin = 1\n      btn.appendChild(document.createTextNode('stop'))\n      btn.addEventListener('click',function(){\n         window.clearTimeout(mod.timeout)\n         mod.value.value = ''\n         })\n      div.appendChild(btn)\n   var btn = document.createElement('button')\n      btn.style.padding = mods.ui.padding\n      btn.style.margin = 1\n      var text = document.createTextNode('pause')\n         mod.pause = text\n         btn.appendChild(text)\n      btn.addEventListener('click',function(){\n         if (mod.timeout != '') {\n            window.clearTimeout(mod.timeout)\n            mod.pause.nodeValue = 'resume'\n            mod.timeout = ''\n            }\n         else {\n            mod.pause.nodeValue = 'pause'\n            var delay = 1000*parseFloat(mod.delay.value)\n            mod.timeout = window.setTimeout(update_value,delay)\n            }\n         })\n      div.appendChild(btn)\n   }\n//\n// local functions\n//\nfunction update_value() {\n   var value = mod.nextvalue\n   mod.value.value = value\n   var start = parseFloat(mod.start.value)\n   var stop  = parseFloat(mod.stop.value)\n   var step  = parseFloat(mod.step.value)\n   var delay = 1000*parseFloat(mod.delay.value)\n   if (value == start)\n      outputs.begin.event()\n   if (start < stop) {\n      if (value <= stop) {\n         outputs.value.event()\n         mod.nextvalue = value + step\n         mod.timeout = window.setTimeout(update_value,delay)\n         }\n      else {\n         mod.value.value = ''\n         outputs.end.event()\n         }\n      }\n   else {\n      if (value >= stop) {\n         outputs.value.event()\n         mod.nextvalue = value + step\n         mod.timeout = window.setTimeout(update_value,delay)\n         }\n      else {\n         mod.value.value = ''\n         outputs.end.event()\n         }\n      }\n   }\n//\n// return values\n//\nreturn ({\n   mod:mod,\n   name:name,\n   init:init,\n   inputs:inputs,\n   outputs:outputs,\n   interface:interface\n   })\n}())\n","top":"489","left":"206","inputs":{},"outputs":{}},"0.0011659221974470446":{"definition":"//\n// format string\n//\n// Neil Gershenfeld \n// (c) Massachusetts Institute of Technology 2015\n// \n// This work may be reproduced, modified, distributed, performed, and \n// displayed for any purpose, but must acknowledge the fab modules \n// project. Copyright is retained and must be preserved. The work is \n// provided as is; no warranty is provided, and users accept all \n// liability.\n//\n// closure\n//\n(function(){\n//\n// module globals\n//\nvar mod = {}\n//\n// name\n//\nvar name = 'format packet'\n//\n// initialization\n//\nvar init = function() {\n   mod.expression.value = \"'z: '+mod.var1+', theta: '+mod.var2\"\n   }\n//\n// inputs\n//\nvar inputs = {\n   var1:{type:'String',\n      event:function(evt) {\n         mod.var1 = evt.detail\n         format_string()\n         }},\n   var2:{type:'String',\n      event:function(evt) {\n         mod.var2 = evt.detail\n         format_string()\n         }}}\n//\n// outputs\n//\nvar outputs = {\n   output:{type:'String',\n      event:function(){\n         mods.output(mod,'output',mod.value.value)\n         }}}\n//\n// interface\n//\nvar interface = function(div){\n   mod.div = div\n   div.appendChild(document.createTextNode('expression:'))\n   div.appendChild(document.createElement('br'))\n   var text = document.createElement('textarea')\n      text.setAttribute('rows',mods.ui.rows)\n      text.setAttribute('cols',mods.ui.cols)\n      text.addEventListener('input',function(evt) {\n         format_string()\n         })\n      div.appendChild(text)\n      mod.expression = text\n   div.appendChild(document.createElement('br'))\n   div.appendChild(document.createTextNode('value:'))\n   div.appendChild(document.createElement('br'))\n   var text = document.createElement('textarea')\n      text.setAttribute('rows',mods.ui.rows)\n      text.setAttribute('cols',mods.ui.cols)\n      div.appendChild(text)\n      mod.value = text\n   }\n//\n// local functions\n//\nfunction format_string() {\n   mod.value.value = eval(mod.expression.value)\n   outputs.output.event()\n   }\n//\n// return values\n//\nreturn ({\n   mod:mod,\n   name:name,\n   init:init,\n   inputs:inputs,\n   outputs:outputs,\n   interface:interface\n   })\n}())\n","top":"531","left":"716","inputs":{},"outputs":{}},"0.24205313692818475":{"definition":"//\n// event generator\n//\n// Neil Gershenfeld \n// (c) Massachusetts Institute of Technology 2016\n// \n// This work may be reproduced, modified, distributed, performed, and \n// displayed for any purpose, but must acknowledge the fab modules \n// project. Copyright is retained and must be preserved. The work is \n// provided as is; no warranty is provided, and users accept all \n// liability.\n//\n// closure\n//\n(function(){\n//\n// module globals\n//\nvar mod = {}\n//\n// name\n//\nvar name = 'start scan'\n//\n// initialization\n//\nvar init = function() {\n   mod.event.value = 'start'\n   }\n//\n// inputs\n//\nvar inputs = {\n   trigger:{type:'event',\n      event:function(evt){\n         outputs.output.event()\n         }}}\n//\n// outputs\n//\nvar outputs = {\n   output:{type:'event',\n      event:function(){\n         mods.output(mod,'output',mod.event.value)}}}\n//\n// interface\n//\nvar interface = function(div){\n   mod.div = div\n   //\n   // generate button\n   //\n   var btn = document.createElement('button')\n      btn.style.padding = mods.ui.padding\n      btn.style.margin = 1\n      btn.appendChild(document.createTextNode('generate'))\n      btn.addEventListener('click',function(){\n         outputs.output.event()\n         })\n      div.appendChild(btn)\n   //\n   // event value\n   //\n   div.appendChild(document.createElement('br'))\n   div.appendChild(document.createTextNode('value: '))\n   var input = document.createElement('input')\n      input.type = 'text'\n      input.size = 6\n      input.addEventListener('change',function(){\n         })\n      div.appendChild(input)\n      mod.event = input\n   }\n//\n// local functions\n//\n;\n//\n// return values\n//\nreturn ({\n   mod:mod,\n   name:name,\n   init:init,\n   inputs:inputs,\n   outputs:outputs,\n   interface:interface\n   })\n}())\n","top":"97","left":"207","inputs":{},"outputs":{}},"0.7206492720988903":{"definition":"//\n// video\n//\n// Neil Gershenfeld \n// (c) Massachusetts Institute of Technology 2015,6\n// \n// This work may be reproduced, modified, distributed, performed, and \n// displayed for any purpose, but must acknowledge the fab modules \n// project. Copyright is retained and must be preserved. The work is \n// provided as is; no warranty is provided, and users accept all \n// liability.\n//\n// closure\n//\n(function(){\n//\n// module globals\n//\nvar mod = {}\n//\n// name\n//\nvar name = 'video'\n//\n// initialization\n//\nvar init = function() {\n   mod.width.value = 640 \n   mod.height.value = 480\n   start_video()\n   }\n//\n// inputs\n//\nvar inputs = {\n   capture:{type:'event',\n      event:function(evt){\n         capture_video()}}}\n//\n// outputs\n//\nvar outputs = {\n   image:{type:'RGBA',\n      event:function(){\n         var ctx = mod.img.getContext(\"2d\")\n         var img = ctx.getImageData(0,0,mod.img.width,mod.img.height)\n         mods.output(mod,'image',img)}}}\n//\n// interface\n//\nvar interface = function(div){\n   mod.div = div\n   //\n   // on-screen drawing canvas\n   //\n   var canvas = document.createElement('canvas')\n      canvas.width = mods.ui.canvas\n      canvas.height = mods.ui.canvas\n      canvas.style.backgroundColor = 'rgb(255,255,255)'\n      div.appendChild(canvas)\n      mod.canvas = canvas\n   div.appendChild(document.createElement('br'))\n   //\n   // off-screen image canvas\n   //\n   var canvas = document.createElement('canvas')\n      mod.img = canvas\n   //\n   // capture button\n   //\n   var btn = document.createElement('button')\n      btn.style.padding = mods.ui.padding\n      btn.style.margin = 1\n      btn.appendChild(document.createTextNode('capture'))\n      btn.addEventListener('click',function() {\n         capture_video()\n         })\n      div.appendChild(btn)\n   div.appendChild(document.createTextNode(' '))\n   //\n   // view button\n   //\n   var btn = document.createElement('button')\n      btn.style.padding = mods.ui.padding\n      btn.style.margin = 1\n      btn.appendChild(document.createTextNode('view'))\n      btn.addEventListener('click',function(){\n         var win = window.open('')\n         var btn = document.createElement('button')\n            btn.appendChild(document.createTextNode('close'))\n            btn.style.padding = mods.ui.padding\n            btn.style.margin = 1\n            btn.addEventListener('click',function(){\n               win.close()\n               })\n            win.document.body.appendChild(btn)\n         win.document.body.appendChild(document.createElement('br'))\n         var canvas = document.createElement('canvas')\n            canvas.width = mod.img.width\n            canvas.height = mod.img.height\n            win.document.body.appendChild(canvas)\n         var ctx = canvas.getContext(\"2d\")\n            ctx.drawImage(mod.img,0,0)\n         })\n      div.appendChild(btn)\n   div.appendChild(document.createElement('br'))\n   //\n   // width\n   //\n   div.appendChild(document.createTextNode('width: '))\n   var input = document.createElement('input')\n      input.type = 'text'\n      input.size = 6\n      input.addEventListener('change',function() {\n         update_video()\n         })\n      div.appendChild(input)\n      mod.width = input\n   div.appendChild(document.createElement('br'))\n   //\n   // height\n   //\n   div.appendChild(document.createTextNode(' height: '))\n   var input = document.createElement('input')\n      input.type = 'text'\n      input.size = 6\n      input.addEventListener('change',function() {\n         update_video()\n         })\n      div.appendChild(input)\n      mod.height = input\n   div.appendChild(document.createElement('br'))\n   //\n   // video element\n   //\n   var video = document.createElement('video')\n      //div.appendChild(video)\n      mod.video = video\n   }\n//\n// local functions\n//\nfunction start_video() {\n   var w = parseInt(mod.width.value)\n   var h = parseInt(mod.height.value)\n   var ctx = mod.img.getContext(\"2d\")\n   ctx.canvas.width = w\n   ctx.canvas.height = h\n   navigator.getMedia = (\n      navigator.getUserMedia ||\n      navigator.webkitGetUserMedia ||\n      navigator.mozGetUserMedia ||\n      navigator.msGetUserMedia)\n   navigator.getMedia(\n      {video:true,audio:false},\n      function(stream) {\n         var vendorURL = window.URL || window.webkitURL\n         mod.video.src = vendorURL.createObjectURL(stream)\n         mod.video.play()\n         },\n      function(err) {console.log(\"video startup error\")}\n      )\n    mod.video.addEventListener('canplay',\n       function(evt) {\n          mod.video.setAttribute('width',w)\n          mod.video.setAttribute('height',h)\n          capture_video()\n          })\n   }\nfunction update_video() {\n   var w = parseInt(mod.width.value)\n   var h = parseInt(mod.height.value)\n   mod.video.setAttribute('width',w)\n   mod.video.setAttribute('height',h)\n   var ctx = mod.img.getContext(\"2d\")\n   ctx.canvas.width = w\n   ctx.canvas.height = h\n   }\nfunction capture_video() {\n   var w = parseInt(mod.width.value)\n   var h = parseInt(mod.height.value)\n   var ctx = mod.img.getContext(\"2d\")\n   ctx.drawImage(mod.video,0,0,w,h)\n   if (w > h) {\n      var x0 = 0\n      var y0 = mod.canvas.height*.5*(1-h/w)\n      var wd = mod.canvas.width\n      var hd = mod.canvas.width*h/w\n      }\n   else {\n      var x0 = mod.canvas.width*.5*(1-w/h)\n      var y0 = 0\n      var wd = mod.canvas.height*w/h\n      var hd = mod.canvas.height\n      }\n   var ctx = mod.canvas.getContext(\"2d\")\n   ctx.clearRect(0,0,mod.canvas.width,mod.canvas.height)\n   ctx.drawImage(mod.img,x0,y0,wd,hd)\n   outputs.image.event()\n   }\n//\n// return values\n//\nreturn ({\n   mod:mod,\n   name:name,\n   init:init,\n   inputs:inputs,\n   outputs:outputs,\n   interface:interface\n   })\n}())\n","top":"78","left":"753","inputs":{},"outputs":{}},"0.921663484124666":{"definition":"//\n// pause event\n//\n// Neil Gershenfeld \n// (c) Massachusetts Institute of Technology 2016\n// \n// This work may be reproduced, modified, distributed, performed, and \n// displayed for any purpose, but must acknowledge the fab modules \n// project. Copyright is retained and must be preserved. The work is \n// provided as is; no warranty is provided, and users accept all \n// liability.\n//\n// closure\n//\n(function(){\n//\n// module globals\n//\nvar mod = {}\n//\n// name\n//\nvar name = 'pause event'\n//\n// initialization\n//\nvar init = function() {\n   }\n//\n// inputs\n//\nvar inputs = {\n   input:{type:'event',\n      event:function(evt){\n         mod.event.value = evt.detail\n         mod.label.nodeValue = 'click to continue'\n         mod.labelspan.style.fontWeight = 'bold'\n         }}}\n//\n// outputs\n//\nvar outputs = {\n   output:{type:'event',\n      event:function(){\n         mods.output(mod,'output',mod.event.value)\n         }}}\n//\n// interface\n//\nvar interface = function(div){\n   mod.div = div\n   //\n   // pause button\n   //\n   var btn = document.createElement('button')\n      btn.style.padding = mods.ui.padding\n      btn.style.margin = 1\n      var span = document.createElement('span')\n         var text = document.createTextNode('waiting for event')\n            mod.label = text\n            span.appendChild(text)\n         mod.labelspan = span\n         btn.appendChild(span)\n      btn.addEventListener('click',function(){\n         mod.label.nodeValue = 'waiting for event'\n         mod.labelspan.style.fontWeight = 'normal'\n         outputs.output.event()\n         })\n      div.appendChild(btn)\n   //\n   // event value\n   //\n   div.appendChild(document.createElement('br'))\n   div.appendChild(document.createTextNode('value: '))\n   var input = document.createElement('input')\n      input.type = 'text'\n      input.size = 6\n      input.addEventListener('change',function(){\n         })\n      div.appendChild(input)\n      mod.event = input\n   }\n//\n// local functions\n//\n;\n//\n// return values\n//\nreturn ({\n   mod:mod,\n   name:name,\n   init:init,\n   inputs:inputs,\n   outputs:outputs,\n   interface:interface\n   })\n}())\n","top":"768","left":"189","inputs":{},"outputs":{}}},"links":["{\"source\":\"{\\\"id\\\":\\\"0.2535609410541485\\\",\\\"type\\\":\\\"outputs\\\",\\\"name\\\":\\\"value\\\"}\",\"dest\":\"{\\\"id\\\":\\\"0.9339870295565246\\\",\\\"type\\\":\\\"inputs\\\",\\\"name\\\":\\\"start\\\"}\"}","{\"source\":\"{\\\"id\\\":\\\"0.2535609410541485\\\",\\\"type\\\":\\\"outputs\\\",\\\"name\\\":\\\"value\\\"}\",\"dest\":\"{\\\"id\\\":\\\"0.0011659221974470446\\\",\\\"type\\\":\\\"inputs\\\",\\\"name\\\":\\\"var1\\\"}\"}","{\"source\":\"{\\\"id\\\":\\\"0.9339870295565246\\\",\\\"type\\\":\\\"outputs\\\",\\\"name\\\":\\\"value\\\"}\",\"dest\":\"{\\\"id\\\":\\\"0.0011659221974470446\\\",\\\"type\\\":\\\"inputs\\\",\\\"name\\\":\\\"var2\\\"}\"}","{\"source\":\"{\\\"id\\\":\\\"0.24205313692818475\\\",\\\"type\\\":\\\"outputs\\\",\\\"name\\\":\\\"output\\\"}\",\"dest\":\"{\\\"id\\\":\\\"0.2535609410541485\\\",\\\"type\\\":\\\"inputs\\\",\\\"name\\\":\\\"start\\\"}\"}","{\"source\":\"{\\\"id\\\":\\\"0.0011659221974470446\\\",\\\"type\\\":\\\"outputs\\\",\\\"name\\\":\\\"output\\\"}\",\"dest\":\"{\\\"id\\\":\\\"0.7206492720988903\\\",\\\"type\\\":\\\"inputs\\\",\\\"name\\\":\\\"capture\\\"}\"}","{\"source\":\"{\\\"id\\\":\\\"0.9339870295565246\\\",\\\"type\\\":\\\"outputs\\\",\\\"name\\\":\\\"end\\\"}\",\"dest\":\"{\\\"id\\\":\\\"0.921663484124666\\\",\\\"type\\\":\\\"inputs\\\",\\\"name\\\":\\\"input\\\"}\"}","{\"source\":\"{\\\"id\\\":\\\"0.921663484124666\\\",\\\"type\\\":\\\"outputs\\\",\\\"name\\\":\\\"output\\\"}\",\"dest\":\"{\\\"id\\\":\\\"0.2535609410541485\\\",\\\"type\\\":\\\"inputs\\\",\\\"name\\\":\\\"step\\\"}\"}"]}