Machining |
NC Review |
Splitting a Tool PathManipulating a tool path |
| Use Case | ||
AbstractThis article discusses the CAAMfgTPESplitToolPathCommand use case. |
This use case is intended to help you manipulate the tool path structure. This involves the following:
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CAAMfgTPESplitToolPathCommand is a use case of the CAAToolPathEditorItf.edu framework that illustrates ToolPathEditor framework capabilities.
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CAAMfgTPESplitToolPathCommand runs with the document CAAMfgToolPath.CATPart shown on Fig.1.
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To launch CAAMfgTPESplitToolPathCommand, you will need to:
# Decomment this line into file ToolPathEditor.edu.dico to run CAAMfgTPEAddToolBar Sample # CAAMfgTPEM3xAddin CATISmgProgramAddin libCAAMfgTPEAddToolBar |
| Windows | InstallRootDirectory\CAADoc\CAAToolPathEditorItf.edu\CNext\resources\ |
| Unix | InstallRootDirectory/CAADoc/CAAToolPathEditorItf.edu/CNext/resources/ |
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Using the Start menu, select the Surfacic Machining workbench in NC Manufacturing |
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This displays the PPR document |
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Then select the tool path and click on the icon representing the command "Split tool path". A tool path is displayed, with points. |
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Select a point on the tool path. Then this tool path is splitted and two tool pathes appear in the PPR Tree. |
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The CAAMfgTPESplitToolPathCommand use case is made of a class named CAAMfgTPESplitToolPathCommand located in the CAAMfgTPESplitToolPathCommand.m module of the CAAToolPathEditorItf.edu framework:
| Windows | InstallRootDirectory\CAADoc\CAAToolPathEditorItf.edu\CAAMfgTPEDisplayToolPathCommand.m |
| Unix | InstallRootDirectory/CAADoc/CAAToolPathEditorItf.edu/CAAMfgTPEDisplayToolPathCommand.m |
where InstallRootDirectory is the directory where the CAA CD-ROM
is installed.
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There are four logical steps in CAAMfgTPESplitToolPathCommand:
We now comment each of those sections by looking at the code.
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The class that will implement the command is named CAAMfgTPESplitToolPathCommand.
Create the CAAMfgTPESplitToolPathCommand class header file:
class ExportedByCAAMfgTPESplitToolPathCommand CAAMfgTPESplitToolPathCom : public CATStateCommand
{
public:
DeclareResource (CAAMfgTPESplitToolPathCom,CATStateCommand)
CAAMfgTPESplitToolPathCom (CATString* argument);
virtual ~CAAMfgTPESplitToolPathCom();
void BuildGraph();
void Valuate (const CATBaseUnknown_var& iValue);
private:
// to Create the rep of the tool path
void CreateController();
// Delete the rep of the tool path
void DeleteController();
// To update the rep of the tool path
void DispatchInfo();
// To get the tool path
boolean GetSelection (void* data);
// To Terminate the command
boolean End (void* data);
// To split the tool path.
boolean SplitToolPath();
// To create the selector of points
void SetSelector();
// Processing of events.
void PreActivate (CATCommand*, CATNotification*, CATCommandClientData);
void Move (CATCommand*, CATNotification*, CATCommandClientData);
void EndPreActivate (CATCommand*, CATNotification*, CATCommandClientData);
// To process the selection of a point.
void ActivateSelector (CATCommand*, CATNotification*, CATCommandClientData);
// to search the index of the selected point
void SetPreActivatedPoint (CATMathPoint &Point);
// To remove the rep of the point.
void RemovePointRep();
// To Get the factory of tool pathes.
HRESULT GetToolPathFactory (CATIContainer_var& oContainer);
CATIMfgActivity_var _Activity;
CATIMfgToolPath_var _ToolPath;
CATIMfgTPMultipleMotion_var _TPMultipleMotion;
CAT3DViewer* _Viewer;
CATPathElementAgent* _TPSelectionAgent;
CATDialogAgent* _TPEndAgent ;
int _PointNumber;
CATPathElement* _ToolPahVisu;
IID* _iid;
CATVisManager* _VisuManager;
CATRep* _TPRep;
CAT3DPointRep* _CurrentPointRep;
CATSelector* _Selector;
};
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The CAAMfgTPESplitToolPathCommand class C++-derives from CATStateCommand.
The DeclareResource macro declares that the resource file is CAAMfgTPESplitToolPathCommand.CATNls.
The class has a constructor, a destructor, a SplitToolPath method
to split the selected tool path, severals methods to manage the user's
interaction and the rep of the tool path, and a copy constructor.
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First you have to implement the method BuilGraph, which will provide you with capturing the user's interactions.
void CAAMfgTPESplitToolPathCom::BuildGraph()
{
// To Select tool path.
_TPSelectionAgent = new CATPathElementAgent("ToolPathSelection");
if (NULL != _TPSelectionAgent) {
_TPSelectionAgent->SetOrderedElementType(CATIMfgCompoundTraject::ClassName());
_TPSelectionAgent->SetBehavior(CATDlgEngWithPrevaluation|CATDlgEngWithCSO|CATDlgEngMultiAcquisition);
AddCSOClient(_TPSelectionAgent);
}
// To terminate the command
if ( _TPEndAgent == NULL ) {
_TPEndAgent = new CATDialogAgent("End");
if (NULL != _TPEndAgent)
_TPEndAgent->AcceptOnNotify(NULL, CATEdit::ClassName());
}
CATDialogState* firstState = GetInitialState("TPESelectToolPath");
if (NULL != firstState) firstState->AddDialogAgent(_TPSelectionAgent);
CATDialogState* secondState = AddDialogState("TPEEndCommand");
if (NULL != secondState)
secondState->AddDialogAgent(_TPEndAgent);
CATDialogTransition * firstTransition =
AddTransition (firstState, secondState,
IsOutputSetCondition(_TPSelectionAgent),
Action((ActionMethod) &CAAMfgTPESplitToolPathCom::GetSelection));
AddTransition (secondState, NULL,
IsOutputSetCondition(_TPEndAgent),
Action((ActionMethod) &CAAMfgTPESplitToolPathCom::End));
}
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Now the method GetSelection is implemented. It gets the selected tool path.
boolean CAAMfgTPESplitToolPathCom::GetSelection (void* data)
{
CATBoolean RESULT = CATFalse;
CATSO* selectedObjects = NULL;
if (NULL != _TPSelectionAgent)
selectedObjects = _TPSelectionAgent->GetListOfValues();
// We display only one tool path in this command
if ( selectedObjects ) {
if ( selectedObjects->GetSize() == 1 ) {
CATPathElement* pathElement=NULL;
CATIMfgCompoundTraject* ptrCTraject=NULL;
CATIMfgCompoundTraject_var itfCmpTraject;
pathElement = (CATPathElement*) (*selectedObjects)[0];
if (NULL != pathElement) {
// A CATIMfgCOmpoundTraject must have been seletecd
ptrCTraject = (CATIMfgCompoundTraject *) (pathElement->FindElement(CATIMfgCompoundTraject::ClassId()));
itfCmpTraject = ptrCTraject;
if (!! itfCmpTraject ) {
_ToolPath = itfCmpTraject;
CATIMfgToolPathComponents_var itfComponents =_ToolPath;
CATListValCATBaseUnknown_var* Liste = NULL;
if (!!itfComponents) Liste = itfComponents->GetAllElements();
if ( Liste )
{
_TPMultipleMotion = (*Liste)[1];
delete Liste;
}
ptrCTraject->Release();
ptrCTraject=NULL;
RESULT = CATTrue;
// We get the activity to be able to redraw the tree under the corresponding activity.
CATIMfgActivity* ptrActivity = (CATIMfgActivity *) (pathElement->FindElement(CATIMfgActivity::ClassId()));
if (NULL != ptrActivity ) {
_Activity = ptrActivity;
ptrActivity->Release();
ptrActivity=NULL;
}
}
pathElement=NULL;
}
// Display the tool path.
CreateController();
DispatchInfo();
// To Select points.
SetSelector();
}
}
return RESULT;
}
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First, we verify that the selected object is a tool path object, then we display it (call to methods CreateController to create the image then a call to method DispatchInfo to display it in the 3d viewer). Then we create a selector to select points on a tool path.
void CAAMfgTPESplitToolPathCom::SetSelector()
{
// To get the rep of the points
CATIMfg3DToolPathVisuData_var VisuData (_ToolPath);
if (!! VisuData) {
if ( SUCCEEDED(VisuData->GetPointsRep(&_TPRep) ) ) {
if ( _Selector == NULL ) {
_Selector = new CATSelector (this,"ToolPathSelector", _TPRep);
AddAnalyseNotificationCB ( _Selector,
_Selector->GetCATPreactivate(),
(CATCommandMethod)&CAAMfgTPESplitToolPathCom::PreActivate,NULL);
AddAnalyseNotificationCB ( _Selector,
_Selector->GetCATActivate(),
(CATCommandMethod)&CAAMfgTPESplitToolPathCom::ActivateSelector,NULL);
AddAnalyseNotificationCB ( _Selector,
_Selector->GetCATMove(),
(CATCommandMethod)&CAAMfgTPESplitToolPathCom::Move,NULL);
AddAnalyseNotificationCB ( _Selector,
_Selector->GetCATEndPreactivate(),
(CATCommandMethod)&CAAMfgTPESplitToolPathCom::EndPreActivate,NULL);
}
else {
_Selector->AssociateToRep(_TPRep);
}
}
}
}
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The method Activateselector is called when an end-user click on a point of the tool path.
void CAAMfgTPESplitToolPathCom::ActivateSelector(CATCommand* c1, CATNotification* c2, CATCommandClientData c3)
{
CATGraphicElementIntersection* Intersection = NULL;
if (NULL != _Selector)
{
Intersection = (CATGraphicElementIntersection*)
_Selector->SendCommandSpecificObject (CATGraphicElementIntersection::ClassName(), c2);
}
if (!Intersection) return;
CATMathPoint point = Intersection->point;
Intersection->Release();
SetPreActivatedPoint(point);
// To split the tool path at the selected point.
if ( SplitToolPath() )
End(NULL);
if ( _Viewer) _Viewer->Draw();
}
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The next is to split the tool path at the selected point and to display this information in the PPR Tree.
boolean CAAMfgTPESplitToolPathCom::SplitToolPath()
{
boolean isSplit=FALSE;
if ( !! _TPMultipleMotion ) {
if ( _PointNumber > 1 && _PointNumber < _TPMultipleMotion->GetNumberOfTipPoints() ) {
CATIMfgTPTransformation_var itfTransformation (_TPMultipleMotion);
if (!! itfTransformation) {
CATIMfgTPMultipleMotion_var MultipleMotion2 (NULL_var);
if ( itfTransformation->Split (_PointNumber,MultipleMotion2) ) {
// To Store the datas int the model.
CATIMfgTPSaveData_var itfSaveData1 = _TPMultipleMotion;
if ( !!itfSaveData1)
itfSaveData1->SaveData ();
CATIMfgTPSaveData_var itfSaveData2 = MultipleMotion2;
if ( !!itfSaveData2)
itfSaveData2->SaveData ();
// We must create two new MfgCompoundTraject.
// Each will have only one MfgpMultipleMotion.
// At the end, we must have
// MfgCompoundTraject -
// MfgCompoundTraject 1 -
// MfgMultipleMotion
// MfgCompoundTraject 2
// MfgMultipleMotion
CATIMfgToolPathFactory_var spTPFactory;
CATIContainer_var spContainer;
GetToolPathFactory (spContainer);
spTPFactory = spContainer;
CATIMfgCompoundTraject_var itfCompound1=NULL_var;
CATIMfgCompoundTraject_var itfCompound2=NULL_var;
if (NULL_var!=spTPFactory) {
itfCompound1 = spTPFactory->CreateMfgCompoundTraject ();
itfCompound2 = spTPFactory->CreateMfgCompoundTraject ();
CATIMfgToolPathComponents_var itfComponents1(itfCompound1);
if ( !! itfComponents1 )
itfComponents1->AddElement(_TPMultipleMotion);
CATIMfgToolPathComponents_var itfComponents2(itfCompound2);
if ( !! itfComponents2 )
itfComponents2->AddElement(MultipleMotion2);
CATIMfgToolPathComponents_var itfComponents(_ToolPath);
if ( !! itfComponents && !! itfComponents1 && !! itfComponents2 ) {
isSplit = TRUE;
// To mark each MfgCompoundTraject as a sub tool path
itfCompound1->SetSubToolPathFlag(CATTrue);
itfCompound2->SetSubToolPathFlag(CATTrue);
itfComponents->RemoveAll();
itfComponents->AddElement(itfCompound1);
itfComponents->AddElement(itfCompound2);
// To displat these two tool path in the tree.
if ( !!_Activity ) {
CATIRedrawEvent_var Event(_Activity->GetImpl());
if (!!Event) Event->Redraw();
}
}
}
}
}
}
}
return isSplit;
}
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This article provides an example on how to use the structure of the tool path and how to make the split of a the tool path.
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| [1] | Building and Launching a CAA V5 Use Case |
| [2] | Dump of Tool Path Content Command |
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| Version: 1 [March 2002] | Document created |
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Copyright © 2002, Dassault Systèmes. All rights reserved.