From 7d80ed29040ccf189c3dccead3b57598e86fa11d Mon Sep 17 00:00:00 2001
From: Stewart Allen <stewart.allen@gmail.com>
Date: Fri, 14 Jan 2022 14:30:07 -0500
Subject: [PATCH] stub in menu for normals inversion

---
 src/mesh/api.js   |  6 ++++++
 src/mesh/build.js |  1 +
 src/mesh/model.js | 12 ++++++++++++
 3 files changed, 19 insertions(+)

diff --git a/src/mesh/api.js b/src/mesh/api.js
index 8a85f20a..ef571edf 100644
--- a/src/mesh/api.js
+++ b/src/mesh/api.js
@@ -313,6 +313,12 @@ let tool = {
         }
     },
 
+    invert() {
+        for (let m of selection.models(true)) {
+            m.invert(api.mode.get());
+        }
+    },
+
     analyze(models) {
         models = fallback(models);
         api.log.emit('analyzing mesh(es)...').pin();
diff --git a/src/mesh/build.js b/src/mesh/build.js
index cf986615..77b6ca12 100644
--- a/src/mesh/build.js
+++ b/src/mesh/build.js
@@ -242,6 +242,7 @@ function ui_build() {
             h.div({ class: "vsep" }),
             h.button({ _: 'duplicate', onclick: tool.duplicate }),
             h.button({ _: 'merge', onclick: tool.merge }),
+            h.button({ _: 'invert', onclick: tool.invert }),
             h.div({ class: "vsep" }),
             h.button({ _: 'analyze', onclick: tool.analyze }),
             h.button({ _: 'repair', onclick: tool.repair }),
diff --git a/src/mesh/model.js b/src/mesh/model.js
index b348ad34..51561e79 100644
--- a/src/mesh/model.js
+++ b/src/mesh/model.js
@@ -303,6 +303,18 @@ mesh.model = class MeshModel extends mesh.object {
         }
     }
 
+    // invert normals for entire mesh or selected faces depending on mod
+    invert(mode) {
+        let { modes } = mesh.api;
+        switch (mode) {
+            case modes.object:
+                break;
+            case modes.face:
+                break;
+        }
+    }
+
+    // remove model from group and space
     remove() {
         if (arguments.length === 0) {
             // direct call requires pass through group