more belt tweaks

src/kiri/main.js

@@ -1258,6 +1258,7 @@
          let stock = settings.stock;
          let stockCenter = stock.center || {};
          let hasStock = stock.x && stock.y && stock.z;
+         let isBelt = dev.bedBelt;
          let center = MODE === MODES.FDM ? dev.originCenter :
             MODE === MODES.SLA ? false :
             MODE === MODES.CAM ? proc.outputOriginCenter :
@@ -1279,7 +1280,7 @@
                      y = -b.min.y
                  } else {
                      x = -dev.bedWidth / 2;
-                     y = dev.bedDepth / 2;
+                     y = isBelt ? 0 : dev.bedDepth / 2;
                  }
              }
          } else if (hasStock) {

src/kiri/print.js

@@ -99,6 +99,7 @@
             .split("\n");
 
         const scope = this,
+            morph = false,
             bounds = scope.bounds = {
                 max: { x:-Infinity, y:-Infinity, z:-Infinity},
                 min: { x:Infinity, y:Infinity, z:Infinity}
@@ -142,7 +143,7 @@
 
             line.forEach(function(tok) {
                 let axis = tok.charAt(0);
-                if (belt) {
+                if (morph && belt) {
                     axis = beltaxis[axis];
                 }
                 if (abs) {
@@ -164,21 +165,21 @@
                 factor * pos.Z + off.Z + xoff.Z + dz
             );
 
-            if (belt) {
+            if (morph && belt) {
                 point.z *= beltfact;
                 point.y -= point.z * beltfact;
             }
 
-            bounds.min.x = Math.min(bounds.min.x, point.x);
-            bounds.max.x = Math.max(bounds.max.x, point.x);
-            bounds.min.y = Math.min(bounds.min.y, point.y);
-            bounds.max.y = Math.max(bounds.max.y, point.y);
-            bounds.min.z = Math.min(bounds.min.z, point.z);
-            bounds.max.z = Math.max(bounds.max.z, point.z);
-
             const retract = (fdm && pos.E < 0) || undefined;
             const moving = g0 || (fdm && pos.E <= 0);
 
+            if (!moving && point.x) bounds.min.x = Math.min(bounds.min.x, point.x);
+            if (!moving && point.x) bounds.max.x = Math.max(bounds.max.x, point.x);
+            if (!moving && point.y) bounds.min.y = Math.min(bounds.min.y, point.y);
+            if (!moving && point.y) bounds.max.y = Math.max(bounds.max.y, point.y);
+            if (!moving && point.z) bounds.min.z = Math.min(bounds.min.z, point.z);
+            if (!moving && point.z) bounds.max.z = Math.max(bounds.max.z, point.z);
+
             // update max speed
             maxf = Math.max(maxf, pos.F);
 
@@ -287,12 +288,12 @@
         });
 
         // recenter for visualization
-        if (belt) {
+        if (morph && belt) {
             for (let layer of output) {
                 for (let rec of layer) {
                     let point = rec.point;
-                    point.y += bounds.min.z;
-                    point.z -= bounds.min.z;
+                    point.y -= bounds.min.z;
+                    point.z += bounds.min.y;
                 }
             }
         }

src/mode/fdm/export.js

@@ -51,7 +51,7 @@
             timeDwell = retDwell / 1000,
             offset = process.outputOriginCenter ? null : {
                 x: device.bedWidth/2,
-                y: device.bedDepth/2
+                y: isBelt ? 0 : device.bedDepth/2
             },
             subst = {
                 travel_speed: seekMMM,
@@ -182,7 +182,9 @@
                 append(";; " + comment);
             }
             let o = [!rate && !newpos.e ? 'G0' : 'G1'];
-            let emit = { x: isBelt, y: isBelt, z: isBelt };
+            // put out x,y,z in belt mode if not engage/retract
+            let xyz = newpos.x || newpos.y || newpos.z;
+            let emit = { x: xyz && isBelt, y: xyz && isBelt, z: xyz && isBelt };
             if (typeof newpos.x === 'number') {
                 pos.x = newpos.x;
                 emit.x = true;
@@ -289,7 +291,9 @@
 
             // move Z to layer height
             zpos += path.height;
-            moveTo({z:zpos}, seekMMM);
+            if (layer > 0 || !isBelt) {
+                moveTo({z:zpos}, seekMMM);
+            }
 
             // iterate through layer outputs
             for (pidx=0; pidx<path.length; pidx++) {
@@ -321,7 +325,7 @@
                     y = out.point.y + offset_y,
                     z = out.point.z;
 
-                // adjust for inversions and offsets
+                // adjust for inversions and origin offsets
                 if (process.outputInvertX) x = -x;
                 if (process.outputInvertY) y = -y;
                 if (offset) {

src/mode/fdm/prepare.js

@@ -398,6 +398,24 @@
 
         print.output = output;
 
+        // if belt, adjust z and y to baselines
+        if (false && isBelt) {
+            let miny = Infinity, minz = Infinity;
+            for (let layer of output) {
+                for (let rec of layer) {
+                    miny = Math.min(miny, rec.point.y);
+                    minz = Math.min(minz, rec.point.y);
+                }
+            }
+            console.log({miny, minz});
+            for (let layer of output) {
+                for (let rec of layer) {
+                    // rec.point.y -= minz;
+                    // rec.point.z -= miny;
+                }
+            }
+        }
+
         // render if not explicitly disabled
         if (render) {
             print.render = FDM.prepareRender(output, (progress, layer) => {