to worker

modules/processes/mill/raster/3D

@@ -212,60 +212,88 @@ var interface = function(div){
 //
 // local functions
 //
-// calculate_path
+// calculate path
 //
 function calculate_path() {
-   var h = mod.height
-   var w = mod.width
-   var xmin = mod.xmin
-   var xmax = mod.xmax
-   var ymin = mod.ymin
-   var ymax = mod.ymax
-   var zmin = mod.zmin
-   var zmax = mod.zmax
+   var blob = new Blob(['('+calculate_path_worker.toString()+'())'])
+   var url = window.URL.createObjectURL(blob)
+   var webworker = new Worker(url)
+   webworker.addEventListener('message',function(evt) {
+      mod.triangles = evt.data.triangles
+      mod.path = evt.data.path
+      mod.label.nodeValue = 'calculate'
+      mod.labelspan.style.fontWeight = 'normal'
       //
       // clear SVG
       //
       var svg = document.getElementById(mod.div.id+'svg')
-   svg.setAttribute('viewBox',"0 0 "+(w-1)+" "+(h-1))
+      svg.setAttribute('viewBox',"0 0 "+(mod.width-1)+" "+(mod.height-1))
       var g = document.getElementById(mod.div.id+'g')
       svg.removeChild(g)
       var g = document.createElementNS('http://www.w3.org/2000/svg','g')
       g.setAttribute('id',mod.div.id+'g')
       svg.appendChild(g)
       //
+      // plot path
+      //
+      for (var i = 1; i < mod.path[0].length; ++i) {
+         var ixp = mod.path[0][i-1][0]
+         var iyp = mod.path[0][i-1][1]
+         var izp = 0.1*mod.path[0][i-1][2]
+         var ix = mod.path[0][i][0]
+         var iy = mod.path[0][i][1]
+         var iz = 0.1*mod.path[0][i][2]
+         var line = document.createElementNS('http://www.w3.org/2000/svg','line')
+            line.setAttribute('stroke','black')
+            line.setAttribute('stroke-width',1)
+            line.setAttribute('stroke-linecap','round')
+            line.setAttribute('x1',ixp)
+            line.setAttribute('y1',iyp-izp)
+            line.setAttribute('x2',ix)
+            line.setAttribute('y2',iy-iz)
+            g.appendChild(line)
+            }
+      })
+   webworker.postMessage({
+      h:mod.height,w:mod.width,
+      xmin:mod.xmin,xmax:mod.xmax,
+      ymin:mod.ymin,ymax:mod.ymax,
+      zmin:mod.zmin,zmax:mod.zmax,
+      map:mod.map})
+   }
+//
+// calculate path worker
+//
+function calculate_path_worker() {
+   self.addEventListener('message',function(evt) {
+      var h = evt.data.h
+      var w = evt.data.w
+      var xmin = evt.data.xmin
+      var xmax = evt.data.xmax
+      var ymin = evt.data.ymin
+      var ymax = evt.data.ymax
+      var zmin = evt.data.zmin
+      var zmax = evt.data.zmax
+      var map = evt.data.map
+      var path = [[]]
+      //
       // line loop
       //
       var ix = 0
       var iy = h-1
       var dx = 1
       var dy = 0
-   var x = xmin+(xmax-xmin)*ix/(w-1)
-   var y = ymin+(ymax-ymin)*iy/(h-1)
-   var z = mod.map[(h-1-iy)*w+ix]
-   var dz = 0.1*h*(zmax-z)/(ymax-ymin)
+      var iz = Math.floor((map[iy*w+ix]-zmax)*w/(xmax-xmin))
       while (1) {
          var ixp = ix
          var iyp = iy
-      var dzp = dz
          ix += dx
          iy += dy
          if (iy <= 0)
             break;
-      var x = xmin+(xmax-xmin)*ix/(w-1)
-      var y = ymin+(ymax-ymin)*iy/(h-1)
-      var z = mod.map[iy*w+ix]
-      var dz = 0.1*h*(zmax-z)/(zmax-zmin)
-      var line = document.createElementNS('http://www.w3.org/2000/svg','line')
-         line.setAttribute('stroke','black')
-         line.setAttribute('stroke-width',1)
-         line.setAttribute('stroke-linecap','round')
-         line.setAttribute('x1',ixp)
-         line.setAttribute('y1',iyp+dzp)
-         line.setAttribute('x2',ix)
-         line.setAttribute('y2',iy+dz)
-         g.appendChild(line)
-      if (ix == (mod.width-1)) {
+         var iz = Math.floor((map[iy*w+ix]-zmax)*w/(xmax-xmin))
+         path[0].push([ix,iy,iz])
+         if (ix == (w-1)) {
             if (dx == 1) {
                dx = 0
                dy = -10
@@ -286,8 +314,12 @@ function calculate_path() {
                }
             }
          }
-   mod.label.nodeValue = 'calculate'
-   mod.labelspan.style.fontWeight = 'normal'
+      //
+      // return
+      //
+      self.postMessage({path:path})
+      self.close()
+      })
    }
 //
 // return values