From 0cd3bd7c9ca96028b7d10ddd1dc43d76c7deeab9 Mon Sep 17 00:00:00 2001
From: Stewart Allen <stewart.allen@gmail.com>
Date: Wed, 9 Jul 2025 11:36:12 -0400
Subject: [PATCH] add const config for cam slicer Z to 3 decimals

---
 bin/webpack-three.js        | 45 -------------------------------------
 src/kiri-mode/cam/slicer.js | 21 ++++++++---------
 2 files changed, 11 insertions(+), 55 deletions(-)
 delete mode 100644 bin/webpack-three.js

diff --git a/bin/webpack-three.js b/bin/webpack-three.js
deleted file mode 100644
index f6b28e4e..00000000
--- a/bin/webpack-three.js
+++ /dev/null
@@ -1,45 +0,0 @@
-const TerserPlugin = require("terser-webpack-plugin");
-const path = require('path');
-
-module.exports = {
-    mode: 'production',
-    entry: "./bin/webpack-three-bundle.js",
-    output: {
-        path: path.resolve('src/ext'),
-        filename: 'three.js',
-        library: 'ThreeBundle',
-        libraryTarget: 'umd',
-        globalObject: 'this'
-    },
-    resolve: {
-        extensions: ['.mjs', '.js'],
-    },
-    module: {
-        rules: [
-            {
-                test: /\.m?js$/,
-                resolve: {
-                    fullySpecified: false,
-                },
-            },
-        ],
-    },
-    optimization: {
-        minimize: false,
-        minimizer: [
-            new TerserPlugin({
-                extractComments: false,
-                terserOptions: {
-                    format: {
-                        comments: false,
-                    },
-                },
-            }),
-        ],
-    },
-    performance: {
-        hints: false,
-        maxAssetSize: 2 * 1024 * 1024,
-        maxEntrypointSize: 2 * 1024 * 1024,
-    },
-};
diff --git a/src/kiri-mode/cam/slicer.js b/src/kiri-mode/cam/slicer.js
index 7c749cd9..eca790ec 100644
--- a/src/kiri-mode/cam/slicer.js
+++ b/src/kiri-mode/cam/slicer.js
@@ -11,6 +11,7 @@ import { slicer } from '../../geo/slicer.js';
 const { sliceConnect, sliceDedup } = slicer;
 const { config } = base;
 const timing = false;
+const zDecimal = 3;
 
 const begin = function () {
     if (timing) console.time(...arguments);
@@ -66,7 +67,7 @@ export class Slicer {
         const zList = this.zList;
 
         function countZ(z) {
-            z = z.round(5);
+            z = z.round(zDecimal);
             zList[z] = (zList[z] || 0) + 1;
         }
 
@@ -75,7 +76,7 @@ export class Slicer {
             p3 = newPoint(0, 0, 0);
 
         // for (let i = 0, il = points.length; i < il; i++) {
-        //     points[i] = points[i].round(5);
+        //     points[i] = points[i].round(zDecimal);
         // }
 
         for (let i = 0, il = points.length; i < il;) {
@@ -95,7 +96,7 @@ export class Slicer {
             // use co-flat and co-line detection to adjust slice Z
             if (p1.z === p2.z && p2.z === p3.z) {
                 // detect zFlat faces to avoid slicing directly on them
-                let zkey = p1.z.toFixed(5),
+                let zkey = p1.z.toFixed(zDecimal),
                     area = Math.abs(util.area2(p1, p2, p3)) / 2;
                 if (!zFlat[zkey]) {
                     zFlat[zkey] = area;
@@ -106,17 +107,17 @@ export class Slicer {
                 // detect zLine (curved region tops/bottoms)
                 // in cam used for ball and v mill tracing
                 if (p1.z === p2.z) {
-                    let zkey = p1.z.toFixed(5);
+                    let zkey = p1.z.toFixed(zDecimal);
                     let zval = zLine[zkey];
                     zLine[zkey] = (zval || 0) + 1;
                 }
                 if (p2.z === p3.z) {
-                    let zkey = p2.z.toFixed(5);
+                    let zkey = p2.z.toFixed(zDecimal);
                     let zval = zLine[zkey];
                     zLine[zkey] = (zval || 0) + 1;
                 }
                 if (p3.z === p1.z) {
-                    let zkey = p3.z.toFixed(5);
+                    let zkey = p3.z.toFixed(zDecimal);
                     let zval = zLine[zkey];
                     zLine[zkey] = (zval || 0) + 1;
                 }
@@ -155,7 +156,7 @@ export class Slicer {
             if (!flatoff) {
                 return z;
             }
-            const znorm = z.toFixed(5);
+            const znorm = z.toFixed(zDecimal);
             return this.zFlat[znorm] ? z + flatoff : z;
         });
 
@@ -395,10 +396,10 @@ export class Slicer {
         }
 
         // filter duplicate values
-        array = array.map(v => v.round(5)).filter((e, i, a) => i < 1 || a[i - 1] !== a[i]);
+        array = array.map(v => v.round(zDecimal)).filter((e, i, a) => i < 1 || a[i - 1] !== a[i]);
 
-        // return array.map(v => Math.abs(parseFloat(v.toFixed(5))));
-        return array.map(v => parseFloat(v.toFixed(5)));
+        // return array.map(v => Math.abs(parseFloat(v.toFixed(zDecimal))));
+        return array.map(v => parseFloat(v.toFixed(zDecimal)));
     }
 }