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-- File: STEPControl_Reader.cdl
-- Created: Mon Jul 8 15:29:41 1996
-- Author: Christian CAILLET
-- <cky@paris1.matra-dtv.fr>
---Copyright: Matra Datavision 1996
class Reader from STEPControl inherits Reader from XSControl
---Purpose : Reads STEP files, checks them and translates their contents
-- into Open CASCADE models. The STEP data can be that of
-- a whole model or that of a specific list of entities in the model.
-- As in XSControl_Reader, you specify the list using a selection.
-- For the translation of iges files it is possible to use next sequence:
-- To change translation parameters
-- class Interface_Static should be used before beginning of
-- translation (see STEP Parameters and General Parameters)
-- Creation of reader - STEPControl_Reader reader;
-- To load s file in a model use method reader.ReadFile("filename.stp")
-- To print load results reader.PrintCheckLoad(failsonly,mode)
-- where mode is equal to the value of enumeration IFSelect_PrintCount
-- For definition number of candidates :
-- Standard_Integer nbroots = reader. NbRootsForTransfer();
-- To transfer entities from a model the following methods can be used:
-- for the whole model - reader.TransferRoots();
-- to transfer a list of entities: reader.TransferList(list);
-- to transfer one entity Handle(Standard_Transient)
-- ent = reader.RootForTransfer(num);
-- reader.TransferEntity(ent), or
-- reader.TransferOneRoot(num), or
-- reader.TransferOne(num), or
-- reader.TransferRoot(num)
-- To obtain the result the following method can be used:
-- reader.NbShapes() and reader.Shape(num); or reader.OneShape();
-- To print the results of transfer use method:
-- reader.PrintCheckTransfer(failwarn,mode);
-- where printfail is equal to the value of enumeration
-- IFSelect_PrintFail, mode see above; or reader.PrintStatsTransfer();
-- Gets correspondence between a STEP entity and a result
-- shape obtained from it.
-- Handle(XSControl_WorkSession)
-- WS = reader.WS();
-- if ( WS->TransferReader()->HasResult(ent) )
-- TopoDS_Shape shape = WS->TransferReader()->ShapeResult(ent);
uses
CString, OStream, Transient, SequenceOfTransient from TColStd,
StepModel from StepData, WorkSession from XSControl,
ReturnStatus from IFSelect, PrintCount from IFSelect,
Shape from TopoDS, SequenceOfShape from TopTools
is
Create returns Reader;
---Purpose : Creates a reader object with an empty STEP model.
Create (WS : mutable WorkSession from XSControl;
scratch : Boolean = Standard_True) returns Reader;
---Purpose : Creates a Reader for STEP from an already existing Session
-- Clears the session if it was not yet set for STEP
StepModel (me) returns StepModel;
---Purpose : Returns the model as a StepModel.
-- It can then be consulted (header, product)
TransferRoot (me : in out; num : Integer = 1) returns Boolean;
---Purpose : Transfers a root given its rank in the list of candidate roots
-- Default is the first one
-- Returns True if a shape has resulted, false else
-- Same as inherited TransferOneRoot, kept for compatibility
NbRootsForTransfer (me : in out) returns Integer is redefined;
---Purpose : Determines the list of root entities from Model which are candidate for
-- a transfer to a Shape (type of entities is PRODUCT)
end Reader;
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