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https://github.com/Open-Cascade-SAS/OCCT.git
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da80ff68f1
Possibility for adding LengthUnit info to XCAF document using special class XCAFDoc_LenghtUnit and XCAFDoc_LenghtUnitTool is implemented. Package UnitsMethods is split: geom methods were placed to new file GeomConvert_Units which is in the toolkit TKXSBase, internal step scale factors was placed to StepData. Updated UnitMethods to convert scale factor to different unit types. Now, XSAlgo::XSAlgo_AlgoContainer is used to update unit info from static interface values. New Draw command "XSetLengthUnit" and "XGetLengthUnit" for set or get XDE attribute. Upgraded tests for STEP, IGES, OBJ, glTF, VRML formats to check area regressing with used unit. Upgraded tests\de test cases to use any units in the "loop back" algorithms.
134 lines
5.1 KiB
C++
134 lines
5.1 KiB
C++
// Created on: 1996-07-08
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// Created by: Christian CAILLET
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// Copyright (c) 1996-1999 Matra Datavision
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// Copyright (c) 1999-2014 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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#ifndef _STEPControl_Reader_HeaderFile
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#define _STEPControl_Reader_HeaderFile
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#include <Standard.hxx>
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#include <Standard_DefineAlloc.hxx>
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#include <Standard_Handle.hxx>
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#include <XSControl_Reader.hxx>
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#include <Standard_Boolean.hxx>
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#include <Standard_Integer.hxx>
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#include <TColStd_SequenceOfAsciiString.hxx>
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#include <TColStd_Array1OfAsciiString.hxx>
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#include <TColStd_Array1OfReal.hxx>
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class XSControl_WorkSession;
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class StepData_StepModel;
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class StepRepr_RepresentationContext;
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//! Reads STEP files, checks them and translates their contents
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//! into Open CASCADE models. The STEP data can be that of
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//! a whole model or that of a specific list of entities in the model.
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//! As in XSControl_Reader, you specify the list using a selection.
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//! For the translation of iges files it is possible to use next sequence:
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//! To change translation parameters
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//! class Interface_Static should be used before beginning of
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//! translation (see STEP Parameters and General Parameters)
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//! Creation of reader - STEPControl_Reader reader;
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//! To load s file in a model use method reader.ReadFile("filename.stp")
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//! To print load results reader.PrintCheckLoad(failsonly,mode)
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//! where mode is equal to the value of enumeration IFSelect_PrintCount
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//! For definition number of candidates :
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//! Standard_Integer nbroots = reader. NbRootsForTransfer();
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//! To transfer entities from a model the following methods can be used:
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//! for the whole model - reader.TransferRoots();
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//! to transfer a list of entities: reader.TransferList(list);
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//! to transfer one entity Handle(Standard_Transient)
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//! ent = reader.RootForTransfer(num);
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//! reader.TransferEntity(ent), or
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//! reader.TransferOneRoot(num), or
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//! reader.TransferOne(num), or
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//! reader.TransferRoot(num)
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//! To obtain the result the following method can be used:
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//! reader.NbShapes() and reader.Shape(num); or reader.OneShape();
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//! To print the results of transfer use method:
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//! reader.PrintCheckTransfer(failwarn,mode);
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//! where printfail is equal to the value of enumeration
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//! IFSelect_PrintFail, mode see above; or reader.PrintStatsTransfer();
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//! Gets correspondence between a STEP entity and a result
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//! shape obtained from it.
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//! Handle(XSControl_WorkSession)
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//! WS = reader.WS();
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//! if ( WS->TransferReader()->HasResult(ent) )
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//! TopoDS_Shape shape = WS->TransferReader()->ShapeResult(ent);
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class STEPControl_Reader : public XSControl_Reader
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! Creates a reader object with an empty STEP model.
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Standard_EXPORT STEPControl_Reader();
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//! Creates a Reader for STEP from an already existing Session
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//! Clears the session if it was not yet set for STEP
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Standard_EXPORT STEPControl_Reader(const Handle(XSControl_WorkSession)& WS, const Standard_Boolean scratch = Standard_True);
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//! Returns the model as a StepModel.
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//! It can then be consulted (header, product)
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Standard_EXPORT Handle(StepData_StepModel) StepModel() const;
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//! Transfers a root given its rank in the list of candidate roots
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//! Default is the first one
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//! Returns True if a shape has resulted, false else
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//! Same as inherited TransferOneRoot, kept for compatibility
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Standard_EXPORT Standard_Boolean TransferRoot (const Standard_Integer num = 1,
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const Message_ProgressRange& theProgress = Message_ProgressRange());
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//! Determines the list of root entities from Model which are candidate for
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//! a transfer to a Shape (type of entities is PRODUCT)
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Standard_EXPORT virtual Standard_Integer NbRootsForTransfer() Standard_OVERRIDE;
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//! Returns sequence of all unit names for shape representations
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//! found in file
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Standard_EXPORT void FileUnits (TColStd_SequenceOfAsciiString& theUnitLengthNames, TColStd_SequenceOfAsciiString& theUnitAngleNames, TColStd_SequenceOfAsciiString& theUnitSolidAngleNames);
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//! Sets system length unit used by transfer process
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Standard_EXPORT void SetSystemLengthUnit(const Standard_Real theLengthUnit);
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//! Returns system length unit used by transfer process
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Standard_EXPORT Standard_Real SystemLengthUnit() const;
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protected:
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private:
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//! Returns units for length , angle and solidangle for shape representations
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Standard_EXPORT Standard_Boolean findUnits (const Handle(StepRepr_RepresentationContext)& theReprContext, TColStd_Array1OfAsciiString& theNameUnits, TColStd_Array1OfReal& theFactorUnits);
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};
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#endif // _STEPControl_Reader_HeaderFile
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