From f29be1ac04e5e8493944eb7cc68cca62c6a59b26 Mon Sep 17 00:00:00 2001
From: Dario Sassi <dario.s@egaltech.com>
Date: Fri, 16 Sep 2016 15:21:53 +0000
Subject: [PATCH] EgtGraphics 1.6u1 : - gestione rotazione nel piano vista da
 sotto.

---
 EgtGraphics.rc  | Bin 11612 -> 11612 bytes
 SceneCamera.cpp |  11 +++++++++++
 2 files changed, 11 insertions(+)

diff --git a/EgtGraphics.rc b/EgtGraphics.rc
index 629cbf7feb34a8e7a656cc747ca4ca7c84e00fa7..ae2e7d0e4cb821d2da993b06aac4d6a85365dd08 100644
GIT binary patch
delta 131
zcmcZ;bth`W4>ndq1|0^&&41bWnVCx&3@0=4=uTD;Iyd=(RNdwdZVP6({C=j%X_7fG
bHJcTLnpkkif%I>_Ahivl7mL|q%5Gc$QobhU

delta 131
zcmcZ;bth`W4>nc<1|0^I&41bWnVCx%OeQn(=uTD;Iyd=(RNdwdZVP6({C=j%X_7fG
bHJcTLnpkkif%I>_Ahivl7mL|q%5Gc$R^BG|

diff --git a/SceneCamera.cpp b/SceneCamera.cpp
index db95998..e98c8b2 100644
--- a/SceneCamera.cpp
+++ b/SceneCamera.cpp
@@ -51,6 +51,11 @@ Scene::SetCamera( double dAngVertDeg, double dAngOrizzDeg, double dDist)
       m_vtUp = - FromPolar( 1, dAngOrizzDeg) ;
       m_bUpOk = true ;
    }
+  // lo stesso anche per vista da sotto
+   else if ( abs( dAngVertDeg - ANG_STRAIGHT) < EPS_ANG_SMALL) {
+      m_vtUp = FromPolar( 1, dAngOrizzDeg) ;
+      m_bUpOk = true ;
+   }
    return true ;
 }
 
@@ -134,6 +139,12 @@ Scene::GetCamera( double* pdAngVertDeg, double* pdAngOrizzDeg, double* pdDist)
       else
          dAngOrizzDeg = -90 ;
    }
+   else if ( fabs( dAngVertDeg - ANG_STRAIGHT) < EPS_ANG_SMALL) {
+      if ( m_bUpOk)
+         (m_vtUp).ToSpherical( nullptr, nullptr, &dAngOrizzDeg) ;
+      else
+         dAngOrizzDeg = 90 ;
+   }
    if ( pdAngVertDeg != nullptr)
       *pdAngVertDeg = dAngVertDeg ;
    if ( pdAngOrizzDeg != nullptr)