CRhinoCommand::result CCommandSamplePan::RunCommand( const CRhinoCommandContext& context )
{
const CRhinoAppViewSettings& view_settings = RhinoApp().AppSettings().ViewSettings();
double d = view_settings.m_pan_increment;
if (view_settings.m_pan_reverse_keyboard)
d = -d;
CRhinoGetOption go;
go.SetCommandPrompt(L"Select pan option");
go.AcceptNothing();
const int down_option_index = go.AddCommandOption(RHCMDOPTNAME(L"Down"));
const int left_option_index = go.AddCommandOption(RHCMDOPTNAME(L"Left"));
const int right_option_index = go.AddCommandOption(RHCMDOPTNAME(L"Right"));
const int up_option_index = go.AddCommandOption(RHCMDOPTNAME( L"Up"));
const int in_option_index = go.AddCommandOption(RHCMDOPTNAME(L"In"));
const int out_option_index = go.AddCommandOption(RHCMDOPTNAME(L"Out"));
for(;;)
{
CRhinoGet::result res = go.GetOption();
if (res != CRhinoGet::option)
break;
CRhinoView* view = go.View();
const CRhinoCommandOption* option = go.Option();
if (0 != view && 0 != option && 0.0 != d)
{
CRhinoViewport* viewport = &(view->ActiveViewport());
if (0 != viewport && viewport->View().m_bLockedProjection)
viewport = &(view->MainViewport());
if (0 != viewport)
{
if (down_option_index == option->m_option_index)
viewport->DownUpDolly(-d);
else if (up_option_index == option->m_option_index)
viewport->DownUpDolly(d);
else if (left_option_index == option->m_option_index)
viewport->LeftRightDolly(-d);
else if (right_option_index == option->m_option_index)
viewport->LeftRightDolly(d);
else if (in_option_index == option->m_option_index)
viewport->InOutDolly(d);
else if (out_option_index == option->m_option_index)
viewport->InOutDolly(-d);
}
view->Redraw();
RhinoApp().SetActiveView(view);
}
}
return CRhinoCommand::success;
}
CRhinoCommand::result CCommandSampleSelectVisibleMeshFaces::RunCommand( const CRhinoCommandContext& context )
{
CRhinoGetObject go;
go.SetCommandPrompt(L"Select mesh");
go.SetGeometryFilter(ON::mesh_object);
go.EnablePreSelect(false);
go.EnableUnselectObjectsOnExit(false);
go.GetObjects(1, 1);
if (go.CommandResult() != CRhinoCommand::success)
return go.CommandResult();
CRhinoView* view = go.View();
if (0 == view)
return CRhinoCommand::failure;
const CRhinoMeshObject* mesh_obj = CRhinoMeshObject::Cast(go.Object(0).Object());
if (0 == mesh_obj)
return CRhinoCommand::failure;
ON_Mesh* mesh = const_cast<ON_Mesh*>(mesh_obj->Mesh());
if (0 == mesh)
return CRhinoCommand::failure;
mesh_obj->Select(false);
context.m_doc.Redraw();
if (!mesh->HasFaceNormals())
mesh->ComputeFaceNormals();
ON_3fVector dir(view->ActiveViewport().VP().CameraZ());
double min_angle = 0.0;
double max_angle = 90.0 * (ON_PI/180);
for (int fi = 0; fi < mesh->m_F.Count(); fi++)
{
const ON_3fVector& norm = mesh->m_FN[fi];
double dot = ON_DotProduct(dir, norm) / (dir.Length() * norm.Length());
double angle = acos(dot);
if (min_angle <= angle && angle <= max_angle)
{
ON_COMPONENT_INDEX ci(ON_COMPONENT_INDEX::mesh_face, fi);
mesh_obj->SelectSubObject(ci, true, true);
}
}
context.m_doc.Redraw();
CRhinoGetString gs;
gs.SetCommandPrompt(L"Press <Enter> to continue");
gs.AcceptNothing();
gs.GetString();
return CRhinoCommand::success;
}
CRhinoCommand::result CCommandSampleZoomRotateWindow::RunCommand( const CRhinoCommandContext& context )
{
CRhinoGetPoint gp;
gp.SetCommandPrompt( L"Drag a window to zoom" );
gp.SetGetPointCursor( RhinoApp().m_default_cursor );
gp.ConstrainToTargetPlane();
gp.AcceptNothing();
switch( gp.Get2dRectangle() )
{
case CRhinoGet::rect2d:
break;
default:
return CRhinoCommand::cancel;
}
CRhinoView* view = gp.View();
if( 0 == view )
return CRhinoCommand::failure;
CRhinoViewport& vport = view->ActiveViewport();
if( !vport.VP().IsParallelProjection() )
{
RhinoApp().Print( L"This sample only works in parallel-projected views.\n" );
return CRhinoCommand::nothing;
}
ON_3dPoint target_point = vport.Target();
CRect pick_rect = gp.Rectangle2d();
ON_Viewport vp_out;
if( DollyWindow(vport, pick_rect, target_point, vp_out) )
{
vport.m_v.SetTargetPoint( target_point );
vp_out.SetTargetPoint( target_point );
vport.SetVP( vp_out, false );
view->Redraw();
}
return CRhinoCommand::success;
}
