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948fe6ca88
Implementation of the method for simplification of the result of Boolean Operation on the API level. The method BRepAlgoAPI_BuilderAlgo::SimplifyResult has been added, so the derived classes such as BooleanOpeation and Splitter can also use this method. The result shape simplification should be called after the operation is done. The simplification is performed by the means of ShapeUpgrade_UnifySameDomain algorithm. Draw command "bsimplify" has been added to control the simplification options. Documentation for new functionality and draw commands controlling the options of Boolean operations. Test cases for the new functionality. Side-effect change: The algorithms in Boolean component have been changed to use the BRepTools_History as a History tool. Now it became possible to disable the collection of shapes modifications during Boolean Operations, which may be useful for performance sake (in draw the option is controlled by *setfillhistory* command). Draw command "unifysamedom" has been changed to accept the angular tolerance in degrees instead of radians.
285 lines
8.6 KiB
C++
285 lines
8.6 KiB
C++
// Created on: 2018/03/21
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// Created by: Eugeny MALTCHIKOV
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// Copyright (c) 2018 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#include <BRepTest.hxx>
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#include <BRep_Builder.hxx>
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#include <BRepTest_DrawableHistory.hxx>
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#include <BRepTest_Objects.hxx>
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#include <Draw.hxx>
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#include <DBRep.hxx>
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#include <TopoDS.hxx>
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#include <TopoDS_Compound.hxx>
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static Standard_Integer SetFillHistory(Draw_Interpretor&, Standard_Integer, const char**);
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static Standard_Integer SaveHistory (Draw_Interpretor&, Standard_Integer, const char**);
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static Standard_Integer Modified (Draw_Interpretor&, Standard_Integer, const char**);
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static Standard_Integer Generated (Draw_Interpretor&, Standard_Integer, const char**);
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static Standard_Integer IsDeleted (Draw_Interpretor&, Standard_Integer, const char**);
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//=======================================================================
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//function : HistoryCommands
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//purpose :
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//=======================================================================
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void BRepTest::HistoryCommands(Draw_Interpretor& theCommands)
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{
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static Standard_Boolean isDone = Standard_False;
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if (isDone) return;
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isDone = Standard_True;
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// Chapter's name
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const char* group = "History commands";
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// Commands
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theCommands.Add("setfillhistory" , "Controls the history collection by the algorithms and its saving into the session after algorithm is done.\n"
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"\t\tUsage: setfillhistory [flag]\n"
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"\t\tw/o arguments prints the current state of the option;\n"
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"\t\tflag == 0 - history will not be collected and saved;\n"
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"\t\tflag != 0 - history will be collected and saved into the session (default).",
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__FILE__, SetFillHistory , group);
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theCommands.Add("savehistory" , "savehistory name\n"
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"\t\tSaves the history from the session into a drawable object with the name <name>.",
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__FILE__, SaveHistory , group);
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theCommands.Add("modified" , "modified modified_shapes history shape\n"
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"\t\tReturns the shapes Modified from the given shape in the given history",
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__FILE__, Modified , group);
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theCommands.Add("generated", "generated generated_shapes history shape\n"
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"\t\tReturns the shapes Generated from the given shape in the given history",
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__FILE__, Generated, group);
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theCommands.Add("isdeleted", "isdeleted history shape\n"
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"\t\tChecks if the given shape has been deleted in the given history",
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__FILE__, IsDeleted, group);
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}
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//=======================================================================
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//function : SetFillHistory
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//purpose :
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//=======================================================================
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Standard_Integer SetFillHistory(Draw_Interpretor& theDI,
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Standard_Integer theArgc,
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const char** theArgv)
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{
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if (theArgc > 2)
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{
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theDI.PrintHelp(theArgv[0]);
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return 1;
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}
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if (theArgc == 1)
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{
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theDI << "Filling of the history is " <<
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(BRepTest_Objects::IsHistoryNeeded() ? "enabled." : "disabled.");
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}
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else
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{
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Standard_Integer iHist = Draw::Atoi(theArgv[1]);
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BRepTest_Objects::SetToFillHistory(iHist != 0);
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}
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return 0;
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}
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//=======================================================================
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//function : SaveHistory
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//purpose :
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//=======================================================================
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Standard_Integer SaveHistory(Draw_Interpretor& theDI,
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Standard_Integer theArgc,
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const char** theArgv)
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{
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if (theArgc != 2)
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{
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theDI.PrintHelp(theArgv[0]);
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return 1;
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}
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// Get the history from the session
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Handle(BRepTools_History) aHistory = BRepTest_Objects::History();
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if (aHistory.IsNull())
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{
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theDI << "No history has been prepared yet.";
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return 1;
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}
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Handle(BRepTest_DrawableHistory) aDrawHist = new BRepTest_DrawableHistory(aHistory);
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Draw::Set(theArgv[1], aDrawHist);
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return 0;
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}
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//=======================================================================
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//function : GetHistory
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//purpose :
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//=======================================================================
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static Handle(BRepTools_History) GetHistory(Draw_Interpretor& theDI,
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Standard_CString theName)
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{
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Handle(BRepTest_DrawableHistory) aHistory =
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Handle(BRepTest_DrawableHistory)::DownCast(Draw::Get(theName));
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if (aHistory.IsNull() || aHistory->History().IsNull())
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{
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theDI << "History with the name " << theName << " does not exist.";
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return NULL;
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}
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return aHistory->History();
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}
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//=======================================================================
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//function : GetShape
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//purpose :
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//=======================================================================
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static TopoDS_Shape GetShape(Draw_Interpretor& theDI,
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Standard_CString theName)
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{
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TopoDS_Shape aS = DBRep::Get(theName);
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if (aS.IsNull())
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{
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theDI << theName << " is a null shape.";
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return TopoDS_Shape();
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}
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if (!BRepTools_History::IsSupportedType(aS))
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{
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theDI << "History is not supported for this kind of shape.";
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return TopoDS_Shape();
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}
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return aS;
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}
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//=======================================================================
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//function : MakeCompound
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//purpose :
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//=======================================================================
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static TopoDS_Shape MakeCompound(const TopTools_ListOfShape& theLS)
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{
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TopoDS_Shape aC;
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if (theLS.Extent() == 1)
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aC = theLS.First();
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else
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{
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BRep_Builder().MakeCompound(TopoDS::Compound(aC));
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TopTools_ListIteratorOfListOfShape it(theLS);
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for (; it.More(); it.Next())
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BRep_Builder().Add(aC, it.Value());
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}
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return aC;
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}
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//=======================================================================
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//function : Modified
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//purpose :
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//=======================================================================
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Standard_Integer Modified(Draw_Interpretor& theDI,
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Standard_Integer theArgc,
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const char** theArgv)
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{
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if (theArgc != 4)
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{
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theDI.PrintHelp(theArgv[0]);
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return 1;
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}
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Handle(BRepTools_History) aHistory = GetHistory(theDI, theArgv[2]);
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if (aHistory.IsNull())
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return 1;
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TopoDS_Shape aS = GetShape(theDI, theArgv[3]);
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if (aS.IsNull())
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return 1;
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const TopTools_ListOfShape& aModified = aHistory->Modified(aS);
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if (aModified.IsEmpty())
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{
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theDI << "The shape has not been modified.";
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return 0;
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}
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DBRep::Set(theArgv[1], MakeCompound(aModified));
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return 0;
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}
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//=======================================================================
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//function : Generated
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//purpose :
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//=======================================================================
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Standard_Integer Generated(Draw_Interpretor& theDI,
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Standard_Integer theArgc,
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const char** theArgv)
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{
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if (theArgc != 4)
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{
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theDI.PrintHelp(theArgv[0]);
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return 1;
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}
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Handle(BRepTools_History) aHistory = GetHistory(theDI, theArgv[2]);
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if (aHistory.IsNull())
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return 1;
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TopoDS_Shape aS = GetShape(theDI, theArgv[3]);
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if (aS.IsNull())
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return 1;
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const TopTools_ListOfShape& aGenerated = aHistory->Generated(aS);
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if (aGenerated.IsEmpty())
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{
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theDI << "No shapes were generated from the shape.";
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return 0;
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}
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DBRep::Set(theArgv[1], MakeCompound(aGenerated));
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return 0;
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}
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//=======================================================================
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//function : IsDeleted
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//purpose :
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//=======================================================================
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Standard_Integer IsDeleted(Draw_Interpretor& theDI,
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Standard_Integer theArgc,
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const char** theArgv)
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{
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if (theArgc != 3)
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{
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theDI.PrintHelp(theArgv[0]);
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return 1;
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}
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Handle(BRepTools_History) aHistory = GetHistory(theDI, theArgv[1]);
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if (aHistory.IsNull())
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return 1;
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TopoDS_Shape aS = GetShape(theDI, theArgv[2]);
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if (aS.IsNull())
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return 1;
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theDI << (aHistory->IsRemoved(aS) ? "Deleted." : "Not deleted.");
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return 0;
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}
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