From 5328995a7964579728e561dfad3ce8013c7b57a0 Mon Sep 17 00:00:00 2001
From: Bruno <bruno.herbelin@gmail.com>
Date: Sun, 7 Feb 2021 20:43:56 +0100
Subject: [PATCH] added force non visible to BBox visitor

---
 BoundingBoxVisitor.cpp | 10 +++++-----
 BoundingBoxVisitor.h   |  5 +++--
 2 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/BoundingBoxVisitor.cpp b/BoundingBoxVisitor.cpp
index 0fb2225..23cfe53 100644
--- a/BoundingBoxVisitor.cpp
+++ b/BoundingBoxVisitor.cpp
@@ -6,7 +6,7 @@
 #include "Primitives.h"
 #include "Decorations.h"
 
-BoundingBoxVisitor::BoundingBoxVisitor(): Visitor()
+BoundingBoxVisitor::BoundingBoxVisitor(bool force): force_(force)
 {
     modelview_ = glm::identity<glm::mat4>();
 
@@ -35,7 +35,7 @@ void BoundingBoxVisitor::visit(Group &n)
         return;
     glm::mat4 mv = modelview_;
     for (NodeSet::iterator node = n.begin(); node != n.end(); node++) {
-        if ( (*node)->visible_ )
+        if ( (*node)->visible_ || force_)
             (*node)->accept(*this);
         modelview_ = mv;
     }
@@ -46,14 +46,13 @@ void BoundingBoxVisitor::visit(Switch &n)
     if (!n.visible_ || n.numChildren() < 1)
         return;
     glm::mat4 mv = modelview_;
-    n.activeChild()->accept(*this);
+    if ( n.activeChild()->visible_ || force_)
+        n.activeChild()->accept(*this);
     modelview_ = mv;
 }
 
 void BoundingBoxVisitor::visit(Primitive &n)
 {
-    if (!n.visible_)
-        return;
 
     bbox_.extend(n.bbox().transformed(modelview_));
 
@@ -64,3 +63,4 @@ void BoundingBoxVisitor::visit(Scene &n)
 {
     n.ws()->accept(*this);
 }
+
diff --git a/BoundingBoxVisitor.h b/BoundingBoxVisitor.h
index 8520cb8..57693c0 100644
--- a/BoundingBoxVisitor.h
+++ b/BoundingBoxVisitor.h
@@ -8,11 +8,11 @@
 class BoundingBoxVisitor: public Visitor
 {
     glm::mat4 modelview_;
+    bool force_;
     GlmToolkit::AxisAlignedBoundingBox bbox_;
 
 public:
-
-    BoundingBoxVisitor();
+    BoundingBoxVisitor(bool force = false);
 
     void setModelview(glm::mat4 modelview);
     GlmToolkit::AxisAlignedBoundingBox bbox();
@@ -23,6 +23,7 @@ public:
     void visit(Group& n) override;
     void visit(Switch& n) override;
     void visit(Primitive& n) override;
+
 };
 
 #endif // BOUNDINGBOXVISITOR_H