ldglite_ldrawOblique_projection_fix.patch

--- main.c.bak  Sat Feb 13 12:23:00 2016
+++ main.c  Sat Feb 13 13:24:03 2016
@@ -38,7 +38,7 @@
 #    endif
 #  endif

-char ldgliteVersion[] = "Version 1.2.6      ";
+char ldgliteVersion[] = "Version 1.2.6.1    ";

 // Use Glut popup menus if MUI is not available.
 #ifndef OFFSCREEN_ONLY
@@ -7236,6 +7236,12 @@
    break;
     case '0':
       m_viewMatrix = LdrawOblique;
+      if (ldraw_projection_type)
+      { // LdrawObliqe only makes sense with orthographic projection.
+   ldraw_projection_type = 0;
+   parse_view(m_viewMatrix);
+   reshape(Width, Height);
+      }
       newview = 1;
       break;
     case '1':
@@ -7276,10 +7282,20 @@
       break;
     case 'j':
       ldraw_projection_type = 0;
+      if (m_viewMatrix == LdrawOblique)
+      {
+   m_viewMatrix = Oblique;
+   parse_view(m_viewMatrix);
+      }
       reshape(Width, Height);
       break;
     case 'J':
       ldraw_projection_type = 1;
+      if (m_viewMatrix == LdrawOblique)
+      {
+   m_viewMatrix = Oblique;
+   parse_view(m_viewMatrix);
+      }
       reshape(Width, Height);
       break;
     case 'f':
@@ -8597,13 +8613,20 @@
    }
    break;
       case 'J':
-   ldraw_projection_type = 1;
+   ldraw_projection_type = 1; // Use Perspective projection.
+   /* LdrawOblique only makes sense in ortho projection. */
+   if (m_viewMatrix == LdrawOblique)
+   {
+     m_viewMatrix = Oblique; // Turn off LdrawOblique model/proj matrix.
+     parse_view(m_viewMatrix);
+   }
    break;
       case 'j':
-   ldraw_projection_type = 0;
+   ldraw_projection_type = 0; // Use Orthographic projection.
+   /* Also disable LdrawOblique.  Press 0 key to view LdrawOblique. */
    if (m_viewMatrix == LdrawOblique)
    {
-     m_viewMatrix = Oblique;
+     m_viewMatrix = Oblique; // Turn off LdrawOblique model/proj matrix.
      parse_view(m_viewMatrix);
    }
    break;