flip origin

modules/processes/mill/raster/3D

@@ -240,10 +240,10 @@ function calculate_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 iyp = mod.height-1-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 iy = mod.height-1-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')
@@ -296,12 +296,22 @@ function calculate_path_worker() {
       var ystep = Math.floor(stepover*diameter*w/(mmunits*(xmax-xmin)))
       var path = [[]]
       //
+      // construct tool offset
+      //
+      var toolsize = Math.floor(diameter*w/(mmunits*(xmax-xmin)))
+      var tooloffset = new Float32Array(toolsize*toolsize)
+      for (var x = 0; x < toolsize; ++x)
+         for (var y = 0; y < toolsize; ++y) {
+            var r = Math.sqrt((x-toolsize/2)*(x-toolsize/2)+(y-toolsize/2)*(y-toolsize/2))
+            tooloffset[y*toolsize+x] = 0
+            }
+      //
       // loop over lines
       //
       xstart = 0
       ystart = h-1
       zstart = Math.floor((map[ystart*w+xstart]-zmax)*w/(xmax-xmin))
-      path[0].push([xstart,ystart,zstart])
+      path[0].push([xstart,h-1-ystart,zstart])
       xcur = 1
       ycur = h-1
       zcur = Math.floor((map[ycur*w+xcur]-zmax)*w/(xmax-xmin))
@@ -332,7 +342,7 @@ function calculate_path_worker() {
          nznext = dznext/dnext
          dot = nxcur*nxnext+nycur*nynext+nzcur*nznext
          if (dot <= (1-error)) {
-            path[0].push([xcur,ycur,zcur])
+            path[0].push([xcur,h-1-ycur,zcur])
             xstart = xcur
             ystart = ycur
             zstart = zcur