From 63cda568e5225a872d79ee57a5eb498146b00347 Mon Sep 17 00:00:00 2001
From: gaozheng <gaozheng.cn@gmail.com>
Date: Thu, 25 Jun 2026 20:43:49 +0800
Subject: [PATCH] =?UTF-8?q?fix(vtk):=20=E2=91=A3=20=E5=88=87=E7=89=87?=
 =?UTF-8?q?=E6=8B=BE=E5=8F=96=E4=B8=B2=E9=80=89-=E4=BD=93=20actor=20?=
 =?UTF-8?q?=E8=AE=BE=20PickableOff,=E6=8B=BE=E5=8F=96=E5=8F=AA=E8=90=BD?=
 =?UTF-8?q?=E5=88=87=E7=89=87=E5=B9=B3=E9=9D=A2?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

点击落到体内部时 picker 命中体、worldPoint 落体内 → nearestSlice 按平面距离选错切片(常选最前的
上下切片)。改:addVolume 后 volume->PickableOff() → 光标拾取只命中切片纹理平面(及帘面),worldPoint
落在光标下那张切片 → 选对。onPick 仅在命中时触发(未命中不误选);旋转支点用选中切片不受影响;
widget 直接交互(selectByTool)本就精确、不受影响。重叠切片仍按最前优先(合理)。

构建:app 链接通过;434/434 测试通过
---
 src/app/VtkSceneView.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/app/VtkSceneView.cpp b/src/app/VtkSceneView.cpp
index 3b2fddf..c6c98be 100644
--- a/src/app/VtkSceneView.cpp
+++ b/src/app/VtkSceneView.cpp
@@ -164,6 +164,9 @@ void VtkSceneView::addVolume(const std::string& dsId, const geopro::data::Volume
         vol.spacing[0], vol.spacing[1], vol.spacing[2] * verticalExaggeration_, vol.vmin, vol.vmax,
         image);
     if (volume) {
+        // 体 actor 不参与拾取：切片选中靠点中切片平面（widget 交互/拾取）。否则点击落到体内部时
+        //   picker 命中体、worldPoint 落体内 → nearestSlice 按平面距离选错切片（用户 ④ 串选）。
+        volume->PickableOff();
         scene_.addViewProp(volume);
         dsProps_[dsId].push_back(volume);
         currentVolumeImage_ = image;