From e22dc83596b2863f3cc1625b66e5f75081b4e36e Mon Sep 17 00:00:00 2001
From: Stewart Allen <so@a3z.co>
Date: Tue, 31 Jan 2023 17:42:32 -0500
Subject: [PATCH] honor z bottom in pocket operations

---
 src/kiri-mode/cam/ops.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/kiri-mode/cam/ops.js b/src/kiri-mode/cam/ops.js
index 66f934aa..1454716d 100644
--- a/src/kiri-mode/cam/ops.js
+++ b/src/kiri-mode/cam/ops.js
@@ -1116,7 +1116,7 @@ class OpPocket extends CamOp {
         const debug = false;
         let { op, state } = this;
         let { tool, rate, down, plunge, expand, contour, smooth, tolerance } = op;
-        let { settings, widget, addSlices, zMax, zTop, zThru, tabs, color } = state;
+        let { settings, widget, addSlices, zTop, zBottom, zThru, tabs, color } = state;
         let { updateToolDiams, cutTabs, cutPolys, healPolys, shadowAt } = state;
         let { process, stock } = settings;
         // generate tracing offsets from chosen features
@@ -1244,6 +1244,7 @@ class OpPocket extends CamOp {
                 .add(vert[i++], vert[i++], zmin = Math.min(zmin, vert[i++]))
             );
         }
+        zmin = Math.max(zBottom, zmin);
         outline = POLY.union(outline, 0.0001, true);
         outline = POLY.setWinding(outline, cutdir, false);
         outline = healPolys(outline);