# DataExchange
TKIGES
IGESData

# IGESData_ReadWriteModule Class Reference

Defines basic File Access Module, under the control of
IGESReaderTool for Reading and IGESWriter for Writing :
Specific actions concern : Read and Write Own Parameters of
an IGESEntity.
The common parts (Directory Entry, Lists of Associativities
and Properties) are processed by IGESReaderTool & IGESWriter
Each sub-class of ReadWriteModule is used in conjunction with
a sub-class of Protocol from IGESData and processes several
types of IGESEntity (typically, them of a package) :
The Protocol gives a unique positive integer Case Number for
each type of IGESEntity it recognizes, the corresponding
ReadWriteModule processes an Entity by using the Case Number
to known what is to do
On Reading, the general service NewVoid is used to create an
IGES Entity the first time
Warning : Works with an IGESReaderData which stores "DE parts" of Items
.

`#include <IGESData_ReadWriteModule.hxx>`

Inheritance diagram for IGESData_ReadWriteModule:

[legend]

## Public Member Functions

Standard_EXPORT Standard_Integer | CaseNum (const Handle(Interface_FileReaderData)&data, const Standard_Integer num) const
| Translates the Type of record <num> in <data> to a positive Case Number, or 0 if failed. Works with IGESReaderData which provides Type & Form Numbers, and calls CaseIGES (see below) .
virtual Standard_EXPORT Standard_Integer | CaseIGES (const Standard_Integer typenum, const Standard_Integer formnum) const =0
| Defines Case Numbers corresponding to the Entity Types taken into account by a sub-class of ReadWriteModule (hence, each sub-class of ReadWriteModule has to redefine this method) Called by CaseNum. Its result will then be used to call Read, etc ... .
Standard_EXPORT void | Read (const Standard_Integer CN, const Handle(Interface_FileReaderData)&data, const Standard_Integer num, Handle(Interface_Check)&ach, const Handle(Standard_Transient)&ent) const
| General Read Function. See IGESReaderTool for more info .
virtual Standard_EXPORT void | ReadOwnParams (const Standard_Integer CN, const Handle(IGESData_IGESEntity)&ent, const Handle(IGESData_IGESReaderData)&IR, IGESData_ParamReader &PR) const =0
| Reads own parameters from file for an Entity; <pr> gives access to them, <ir> detains parameter types and values For each class, there must be a specific action provided Note that Properties and Associativities Lists are Read by specific methods (see below), they are called under control of reading process (only one call) according Stage recorded in ParamReader .
virtual Standard_EXPORT void | WriteOwnParams (const Standard_Integer CN, const Handle(IGESData_IGESEntity)&ent, IGESData_IGESWriter &IW) const =0
| Writes own parameters to IGESWriter; defined for each class (to be redefined for other IGES ReadWriteModules) Warning : Properties and Associativities are directly managed by WriteIGES, must not be sent by this method .
Standard_EXPORT const | Handle (Standard_Type)&DynamicType() const

## Member Function Documentation

virtual Standard_EXPORT Standard_Integer IGESData_ReadWriteModule::CaseIGES | ( | const Standard_Integer | typenum,
|  | const Standard_Integer | formnum
| ) | const`[pure virtual]`

| Implemented in IGESAppli_ReadWriteModule, IGESBasic_ReadWriteModule, IGESDefs_ReadWriteModule, IGESDimen_ReadWriteModule, IGESDraw_ReadWriteModule, IGESGeom_ReadWriteModule, IGESGraph_ReadWriteModule, and IGESSolid_ReadWriteModule.

Standard_EXPORT Standard_Integer IGESData_ReadWriteModule::CaseNum | ( | const Handle(Interface_FileReaderData)& | data,
|  | const Standard_Integer | num
| ) | const`[virtual]`

| Implements Interface_ReaderModule.

Standard_EXPORT const IGESData_ReadWriteModule::Handle | ( | Standard_Type |  | ) | const

| Reimplemented from Interface_ReaderModule. Reimplemented in IGESAppli_ReadWriteModule, IGESBasic_ReadWriteModule, IGESDefs_ReadWriteModule, IGESDimen_ReadWriteModule, IGESDraw_ReadWriteModule, IGESGeom_ReadWriteModule, IGESGraph_ReadWriteModule, and IGESSolid_ReadWriteModule.

Standard_EXPORT void IGESData_ReadWriteModule::Read | ( | const Standard_Integer | CN,
|  | const Handle(Interface_FileReaderData)& | data,
|  | const Standard_Integer | num,
|  | Handle(Interface_Check)& | ach,
|  | const Handle(Standard_Transient)& | ent
| ) | const`[virtual]`

| Implements Interface_ReaderModule.

virtual Standard_EXPORT void IGESData_ReadWriteModule::ReadOwnParams | ( | const Standard_Integer | CN,
|  | const Handle(IGESData_IGESEntity)& | ent,
|  | const Handle(IGESData_IGESReaderData)& | IR,
|  | IGESData_ParamReader & | PR
| ) | const`[pure virtual]`

| Implemented in IGESAppli_ReadWriteModule, IGESBasic_ReadWriteModule, IGESDefs_ReadWriteModule, IGESDimen_ReadWriteModule, IGESDraw_ReadWriteModule, IGESGeom_ReadWriteModule, IGESGraph_ReadWriteModule, and IGESSolid_ReadWriteModule.

virtual Standard_EXPORT void IGESData_ReadWriteModule::WriteOwnParams | ( | const Standard_Integer | CN,
|  | const Handle(IGESData_IGESEntity)& | ent,
|  | IGESData_IGESWriter & | IW
| ) | const`[pure virtual]`

| Implemented in IGESAppli_ReadWriteModule, IGESBasic_ReadWriteModule, IGESDefs_ReadWriteModule, IGESDimen_ReadWriteModule, IGESDraw_ReadWriteModule, IGESGeom_ReadWriteModule, IGESGraph_ReadWriteModule, and IGESSolid_ReadWriteModule.

The documentation for this class was generated from the following file:

- IGESData_ReadWriteModule.hxx