rastering with height map z

modules/processes/mill/raster/3D

@@ -35,6 +35,7 @@ var init = function() {
 var inputs = {
    map:{type:'',label:'height map',
       event:function(evt){
+         mod.map = evt.detail.map
          mod.width = evt.detail.width
          mod.height = evt.detail.height
          mod.xmin = evt.detail.xmin
@@ -214,11 +215,19 @@ var interface = function(div){
 // 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
    //
    // clear SVG
    //
    var svg = document.getElementById(mod.div.id+'svg')
-   svg.setAttribute('viewBox',"0 0 "+(mod.width-1)+" "+(mod.height-1))
+   svg.setAttribute('viewBox',"0 0 "+(w-1)+" "+(h-1))
    var g = document.getElementById(mod.div.id+'g')
    svg.removeChild(g)
    var g = document.createElementNS('http://www.w3.org/2000/svg','g')
@@ -228,29 +237,34 @@ function calculate_path() {
    // line loop
    //
    var ix = 0
-   var iy = mod.height-1
+   var iy = h-1
    var dx = 1
    var dy = 0
-   //var x2 = mod.xmin+(mod.xmax-mod.xmin)*ix/(mod.width-1)
-   //var y2 = mod.ymin+(mod.ymax-mod.ymin)*iy/(mod.height-1)
+   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 = h*(zmax-z)/(ymax-ymin)
    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)
+         line.setAttribute('y1',iyp+dzp)
          line.setAttribute('x2',ix)
-            line.setAttribute('y2',iy)
+         line.setAttribute('y2',iy+dz)
          g.appendChild(line)
-      //var x2 = mod.xmin+(mod.xmax-mod.xmin)*ix/(mod.width-1)
-      //var y2 = mod.ymin+(mod.ymax-mod.ymin)*iy/(mod.height-1)
-      if (iy <= 0)
-         break;
       if (ix == (mod.width-1)) {
          if (dx == 1) {
             dx = 0