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1 | // File: TOcafFunction_CutDriver.cxx |
2 | // Created: Mon Dec 27 10:37:13 1999 |
3 | // Author: Vladislav ROMASHKO |
4 | // <vro@flox.nnov.matra-dtv.fr> |
5 | |
6 | |
7 | #include <stdafx.h> |
8 | #include <TOcafFunction_CutDriver.hxx> |
9 | |
10 | #include <TNaming_NamedShape.hxx> |
11 | #include <TNaming_Builder.hxx> |
12 | |
13 | #include <BRepAlgoAPI_Cut.hxx> |
14 | #include <TCollection_AsciiString.hxx> |
15 | #include <TDF_Tool.hxx> |
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16 | #include "Standard_GUID.hxx" |
17 | #include "TFunction_Logbook.hxx" |
18 | #include "TDF_Reference.hxx" |
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19 | |
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20 | IMPLEMENT_STANDARD_RTTIEXT (TOcafFunction_CutDriver, TFunction_Driver) |
21 | |
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22 | //======================================================================= |
23 | //function : GetID |
24 | //purpose : |
25 | //======================================================================= |
26 | |
27 | const Standard_GUID& TOcafFunction_CutDriver::GetID() { |
28 | static Standard_GUID anID("22D22E52-D69A-11d4-8F1A-0060B0EE18E8"); |
29 | return anID; |
30 | } |
31 | |
32 | |
33 | //======================================================================= |
34 | //function : TPartStd_CutDriver |
35 | //purpose : Creation of an instance of the driver. It's possible (and recommended) |
36 | // : to have only one instance of a driver for the whole session. |
37 | //======================================================================= |
38 | |
39 | TOcafFunction_CutDriver::TOcafFunction_CutDriver() |
40 | {} |
41 | |
42 | //======================================================================= |
43 | //function : Validate |
44 | //purpose : Validation of the object label, its arguments and its results. |
45 | //======================================================================= |
46 | |
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47 | void TOcafFunction_CutDriver::Validate(Handle(TFunction_Logbook)& log) const |
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48 | { |
49 | // We validate the object label ( Label() ), all the arguments and the results of the object: |
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50 | log->SetValid(Label(), Standard_True); |
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51 | } |
52 | |
53 | //======================================================================= |
54 | //function : MustExecute |
55 | //purpose : We call this method to check if the object was modified to |
56 | // : be invoked. If the object label or an argument is modified, |
57 | // : we must recompute the object - to call the method Execute(). |
58 | //======================================================================= |
59 | |
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60 | Standard_Boolean TOcafFunction_CutDriver::MustExecute(const Handle(TFunction_Logbook)& log) const |
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61 | { |
62 | // If the object's label is modified: |
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63 | if (log->IsModified(Label())) return Standard_True; |
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64 | |
65 | // Cut (in our simple case) has two arguments: The original shape, and the tool shape. |
66 | // They are on the child labels of the cut's label: |
67 | // So, OriginalNShape - is attached to the first child label |
68 | // ToolNShape - is attached to the second child label, |
69 | // . |
70 | // Let's check them: |
71 | Handle(TDF_Reference) OriginalRef; |
72 | //TDF_Label aLabel = Label().FindChild(1); |
73 | /* |
74 | BOOL f = Label().IsNull(); |
75 | int a = Label().NbChildren(); |
76 | */ |
77 | TCollection_AsciiString aEntry; |
78 | TDF_Tool::Entry(Label(), aEntry); |
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79 | std::cout << "Entry: "<<aEntry.ToCString()<<std::endl; |
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80 | Label().FindChild(1).FindAttribute(TDF_Reference::GetID(),OriginalRef); |
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81 | if (log->IsModified(OriginalRef->Get())) return Standard_True; // Original shape. |
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82 | |
83 | Handle(TDF_Reference) ToolRef; |
84 | Label().FindChild(2).FindAttribute(TDF_Reference::GetID(),ToolRef); |
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85 | if (log->IsModified(ToolRef->Get())) return Standard_True; // Tool shape. |
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86 | |
87 | // if there are no any modifications concerned the cut, |
88 | // it's not necessary to recompute (to call the method Execute()): |
89 | return Standard_False; |
90 | } |
91 | |
92 | //======================================================================= |
93 | //function : Execute |
94 | //purpose : |
95 | // : We compute the object and topologically name it. |
96 | // : If during the execution we found something wrong, |
97 | // : we return the number of the failure. For example: |
98 | // : 1 - an attribute hasn't been found, |
99 | // : 2 - algorithm failed, |
100 | // : if there are no any mistakes occurred we return 0: |
101 | // : 0 - no mistakes were found. |
102 | //======================================================================= |
103 | |
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104 | Standard_Integer TOcafFunction_CutDriver::Execute(Handle(TFunction_Logbook)& /*log*/) const |
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105 | { |
106 | // Let's get the arguments (OriginalNShape, ToolNShape of the object): |
107 | |
108 | // First, we have to retrieve the TDF_Reference attributes to obtain the root labels of the OriginalNShape and the ToolNShape: |
109 | Handle(TDF_Reference) OriginalRef, ToolRef; |
110 | if (!Label().FindChild(1).FindAttribute(TDF_Reference::GetID(), OriginalRef )) return 1; |
111 | TDF_Label OriginalLab = OriginalRef->Get(); |
112 | if (!Label().FindChild(2).FindAttribute(TDF_Reference::GetID(), ToolRef)) return 1; |
113 | TDF_Label ToolLab = ToolRef->Get(); |
114 | |
115 | // Get the TNaming_NamedShape attributes of these labels |
116 | Handle(TNaming_NamedShape) OriginalNShape, ToolNShape; |
117 | if (!( OriginalLab.FindAttribute(TNaming_NamedShape::GetID(),OriginalNShape) )) |
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118 | throw Standard_Failure("TOcaf_Commands::CutObjects"); |
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119 | if (!( ToolLab.FindAttribute(TNaming_NamedShape::GetID(),ToolNShape) )) |
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120 | throw Standard_Failure("TOcaf_Commands::CutObjects"); |
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121 | |
122 | // Now, let's get the TopoDS_Shape of these TNaming_NamedShape: |
123 | TopoDS_Shape OriginalShape = OriginalNShape->Get(); |
124 | TopoDS_Shape ToolShape = ToolNShape->Get(); |
125 | |
126 | // STEP 2: |
127 | // Let's call for algorithm computing a cut operation: |
128 | BRepAlgoAPI_Cut mkCut(OriginalShape, ToolShape); |
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129 | // Let's check if the Cut has been successful: |
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130 | if (!mkCut.IsDone()) |
131 | { |
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132 | MessageBoxW (NULL, L"Cut not done.", L"Cut Function Driver", MB_ICONERROR); |
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133 | return 2; |
134 | } |
135 | TopoDS_Shape ResultShape = mkCut.Shape(); |
136 | |
137 | // Build a TNaming_NamedShape using built cut |
138 | TNaming_Builder B(Label()); |
139 | B.Modify( OriginalShape, ResultShape); |
140 | // That's all: |
141 | // If there are no any mistakes we return 0: |
142 | return 0; |
143 | } |