//
// path to DXF
//
// Neil Gershenfeld 
// (c) Massachusetts Institute of Technology 2018
// 
// This work may be reproduced, modified, distributed, performed, and 
// displayed for any purpose, but must acknowledge the mods
// project. Copyright is retained and must be preserved. The work is 
// provided as is; no warranty is provided, and users accept all 
// liability.
//
// closure
//
(function(){
//
// module globals
//
var mod = {}
//
// name
//
var name = 'path to DXF (unfinished)'
//
// initialization
//
var init = function() {
   mod.cutspeed.value = 20
   mod.plungespeed.value = 20
   mod.jogspeed.value = 75
   mod.jogheight.value = 5
   mod.spindlespeed.value = 10000
   mod.tool.value = 1
   mod.coolanton.checked = true   
   }
//
// inputs
//
var inputs = {
   path:{type:'',
      event:function(evt){
         mod.name = evt.detail.name
         mod.path = evt.detail.path
         mod.dpi = evt.detail.dpi
         mod.width = evt.detail.width
         mod.height = evt.detail.height
         make_path()
         }}}
//
// outputs
//
var outputs = {
   file:{type:'',
      event:function(str){
         obj = {}
         obj.name = mod.name+".nc"
         obj.contents = str
         mods.output(mod,'file',obj)
         }}}
//
// interface
//
var interface = function(div){
   mod.div = div
   //
   // cut speed
   //
   div.appendChild(document.createTextNode('cut speed: '))
   var input = document.createElement('input')
      input.type = 'text'
      input.size = 6
      div.appendChild(input)
      mod.cutspeed = input
   div.appendChild(document.createTextNode(' (mm/s)'))
   div.appendChild(document.createElement('br'))
   //
   // plunge speed
   //
   div.appendChild(document.createTextNode('plunge speed: '))
   var input = document.createElement('input')
      input.type = 'text'
      input.size = 6
      div.appendChild(input)
      mod.plungespeed = input
   div.appendChild(document.createTextNode(' (mm/s)'))
   div.appendChild(document.createElement('br'))
   //
   // jog speed
   //
   div.appendChild(document.createTextNode('jog speed: '))
   var input = document.createElement('input')
      input.type = 'text'
      input.size = 6
      div.appendChild(input)
      mod.jogspeed = input
   div.appendChild(document.createTextNode(' (mm/s)'))
   div.appendChild(document.createElement('br'))
   //
   // jog height
   //
   div.appendChild(document.createTextNode('jog height: '))
   var input = document.createElement('input')
      input.type = 'text'
      input.size = 6
      div.appendChild(input)
      mod.jogheight = input
   div.appendChild(document.createTextNode(' (mm)'))
   div.appendChild(document.createElement('br'))
   //
   // spindle speed
   //
   div.appendChild(document.createTextNode('spindle speed: '))
   var input = document.createElement('input')
      input.type = 'text'
      input.size = 6
      div.appendChild(input)
      mod.spindlespeed = input
   div.appendChild(document.createTextNode(' (RPM)'))
   div.appendChild(document.createElement('br'))
   //
   // tool
   //
   div.appendChild(document.createTextNode('tool: '))
   var input = document.createElement('input')
      input.type = 'text'
      input.size = 6
      div.appendChild(input)
      mod.tool = input
   div.appendChild(document.createElement('br'))
   //
   // coolant
   //
   div.appendChild(document.createTextNode('coolant:'))
   var input = document.createElement('input')
      input.type = 'radio'
      input.name = mod.div.id+'coolant'
      input.id = mod.div.id+'coolanton'
      div.appendChild(input)
      mod.coolanton = input
   div.appendChild(document.createTextNode('on'))
   var input = document.createElement('input')
      input.type = 'radio'
      input.name = mod.div.id+'coolant'
      input.id = mod.div.id+'coolantoff'
      div.appendChild(input)
      mod.coolantoff = input
   div.appendChild(document.createTextNode('off'))
   }
//
// local functions
//
function make_path() {
   /*
   var units = 1/25.4
   var dx = mod.width/mod.dpi
   var nx = mod.width
   var scale = dx/(nx-1)
   str = "999\nDXF written by mods\n"
   str += "0\nSECTION\n"
   str += "2\nHEADER\n"
   str += "9\n$ACADVER\n1\nAC1009\n"
   str += "9\n$EXTMIN\n"
   str += "10\n%f\n",units*v->xmin
   str += "20\n%f\n",units*v->ymin
   if (v->path->dof == 3)
      str += "30\n%f\n",units*(v->zmin)
   str += "9\n$EXTMAX\n"
   str += "10\n%f\n",units*(v->xmin+v->dx)
   str += "20\n%f\n",units*(v->ymin+v->dy)
   if (v->path->dof == 3)
      str += "30\n%f\n",units*(v->zmin+v->dz)
   str += "0\nENDSEC\n"
   str += "0\nSECTION\n"
   str += "2\nTABLES\n"
   str += "0\nTABLE\n"
   str += "2\nLTYPE\n70\n1\n"
   str += "0\nLTYPE\n"
   str += "2\nCONTINUOUS\n"
   str += "70\n64\n3\n"
   str += "Solid line\n"
   str += "72\n65\n73\n0\n40\n0.000000\n"
   str += "0\nENDTAB\n"
   str += "0\nTABLE\n2\nLAYER\n70\n1\n"
   str += "0\nLAYER\n2\ndefault\n70\n64\n62\n7\n6\n"
   str += "CONTINUOUS\n0\nENDTAB\n"
   str += "0\nENDSEC\n"
   str += "0\nSECTION\n"
   str += "2\nBLOCKS\n"
   str += "0\nENDSEC\n"
   str += "0\nSECTION\n"
   str += "2\nENTITIES\n"
   //
   // follow segments
   //
   for (var seg = 0; seg < mod.path.length; ++seg) {

      x = v->path->segment->point->first->value;
      y = v->ny - v->path->segment->point->first->next->value;
      if (v->path->dof == 3)
         z = v->path->segment->point->first->next->next->value;
      x0 = units*(v->xmin+scale*x);
      y0 = units*(v->ymin+scale*y);
      if (v->path->dof == 3)
         z0 = units*(v->zmin+scale*z);

      //
      // move up to starting point
      //
      x = scale*mod.path[seg][0][0]
      y = scale*mod.path[seg][0][1]
      str += "Z"+jog_height.toFixed(4)+"\n"
      str += "G00X"+x.toFixed(4)+"Y"+y.toFixed(4)+"Z"+jog_height.toFixed(4)+"\n"
      //
      // move down
      //
      z = scale*mod.path[seg][0][2]
      str += "G01Z"+z.toFixed(4)+" F"+plunge_speed.toFixed(4)+"\n"
      str += "F"+cut_speed.toFixed(4)+"\n" //restore xy feed rate

      //
      // follow points
      //
      for (var pt = 1; pt < mod.path[seg].length; ++pt) {
      
         x = v->path->segment->point->first->value;
         y = v->ny - v->path->segment->point->first->next->value;
         if (v->path->dof == 3)
            z = v->path->segment->point->first->next->next->value;
         x1 = units*(v->xmin+scale*x);
         y1 = units*(v->ymin+scale*y);
         if (v->path->dof == 3)
            z1 = units*(v->zmin+scale*z);
         str += "0\nLINE\n"
         str += "10\n%f\n",x0
         str += "20\n%f\n",y0
         if (v->path->dof == 3)
            str += "30\n%f\n",z0
         str += "11\n%f\n",x1
         str += "21\n%f\n",y1
         if (v->path->dof == 3)
            str += "31\n%f\n",z1
         x0 = x1;
         y0 = y1;
         if (v->path->dof == 3)
            z0 = z1;
            
         //
         // move to next point
         //
         x = scale*mod.path[seg][pt][0]
         y = scale*mod.path[seg][pt][1]
         z = scale*mod.path[seg][pt][2]
         str += "G01X"+x.toFixed(4)+"Y"+y.toFixed(4)+"Z"+z.toFixed(4)+"\n"

         }
      }
   //
   // finish
   //
   str += "0\nENDSEC\n"
   str += "0\nEOF\n"
   //
   // output file
   //
   outputs.file.event(str)
   */
   }
//
// return values
//
return ({
   mod:mod,
   name:name,
   init:init,
   inputs:inputs,
   outputs:outputs,
   interface:interface
   })
}())