Public Member Functions | Protected Member Functions | List of all members
dimeLWPolyline Class Reference

The dimeLWPolyline class handles an LWPOLYLINE entity. More...

#include <dime/entities/LWPolyline.h>

Inheritance diagram for dimeLWPolyline:
dimeExtrusionEntity dimeEntity dimeRecordHolder dimeBase

Public Member Functions

 dimeLWPolyline ()
virtual ~dimeLWPolyline ()
virtual dimeEntitycopy (dimeModel *const model) const
virtual bool getRecord (const int groupcode, dimeParam &param, const int index) const
virtual const char * getEntityName () const
virtual void print () const
virtual bool write (dimeOutput *const out)
virtual int typeId () const
virtual int countRecords () const
virtual GeometryType extractGeometry (dimeArray< dimeVec3f > &verts, dimeArray< int > &indices, dimeVec3f &extrusionDir, dxfdouble &thickness)
int getNumVertices () const
const dxfdouble * getXCoords () const
const dxfdouble * getYCoords () const
const dxfdouble * getStartingWidths () const
const dxfdouble * getEndWidths () const
const dxfdouble * getBulges () const
dxfdouble getElevation () const
dxfdouble getConstantWidth () const
int16 getFlags () const
- Public Member Functions inherited from dimeExtrusionEntity
 dimeExtrusionEntity ()
void setExtrusionDir (const dimeVec3f &v)
const dimeVec3fgetExtrusionDir () const
void setThickness (const dxfdouble val)
dxfdouble getThickness () const
virtual bool isOfType (const int thtypeid) const
- Public Member Functions inherited from dimeEntity
 dimeEntity ()
virtual ~dimeEntity ()
int16 getEntityFlags () const
void setEntityFlags (const int16 flags)
int16 getColorNumber () const
void setColorNumber (const int16 c)
virtual void setLayer (const dimeLayer *const layer)
const dimeLayergetLayer () const
const char * getLayerName () const
virtual bool read (dimeInput *const in)
bool isDeleted () const
void setDeleted (const bool onOff=true)
bool isTagged () const
void setTagged (const bool onOff=true)
- Public Member Functions inherited from dimeRecordHolder
 dimeRecordHolder (const int separator)
virtual ~dimeRecordHolder ()
void setRecord (const int groupcode, const dimeParam &value, dimeMemHandler *const memhandler=NULL)
void setRecords (const int *const groupcodes, const dimeParam *const params, const int numrecords, dimeMemHandler *const memhandler=NULL)
void setIndexedRecord (const int groupcode, const dimeParam &value, const int index, dimeMemHandler *const memhandler=NULL)
dimeRecordfindRecord (const int groupcode, const int index=0)
int getNumRecordsInRecordHolder (void) const
dimeRecordgetRecordInRecordHolder (const int idx) const
- Public Member Functions inherited from dimeBase
 dimeBase (void)
virtual ~dimeBase ()
void * operator new (size_t size, dimeMemHandler *memhandler=NULL, const int alignment=4)
void operator delete (void *ptr)

Protected Member Functions

virtual bool handleRecord (const int groupcode, const dimeParam &param, dimeMemHandler *const memhandler)
- Protected Member Functions inherited from dimeExtrusionEntity
void copyExtrusionData (const dimeExtrusionEntity *const entity)
bool writeExtrusionData (dimeOutput *const out)
- Protected Member Functions inherited from dimeEntity
bool preWrite (dimeOutput *const file)
virtual bool traverse (const dimeState *const state, dimeCallback callback, void *userdata)
virtual void fixReferences (dimeModel *const model)
virtual bool shouldWriteRecord (const int groupcode) const
bool copyRecords (dimeEntity *const entity, dimeModel *const model) const
- Protected Member Functions inherited from dimeRecordHolder
bool copyRecords (dimeRecordHolder *const rh, dimeMemHandler *const memhandler) const

Additional Inherited Members

- Public Types inherited from dimeEntity
enum  GeometryType { NONE, POLYGONS, LINES, POINTS }
- Static Public Member Functions inherited from dimeEntity
static dimeEntitycreateEntity (const char *const name, dimeMemHandler *const memhandler=NULL)
static bool readEntities (dimeInput *const file, dimeArray< dimeEntity * > &array, const char *const stopat)
static bool copyEntityArray (const dimeEntity *const *const array, const int nument, dimeModel *const model, dimeArray< dimeEntity * > &destarray)
static dimeEntity ** copyEntityArray (const dimeEntity *const *const array, int &nument, dimeModel *const model)
static void arbitraryAxis (const dimeVec3f &givenaxis, dimeVec3f &newaxis)
static void generateUCS (const dimeVec3f &givenaxis, dimeMatrix &m)
- Protected Attributes inherited from dimeExtrusionEntity
dimeVec3f extrusionDir
dxfdouble thickness

Detailed Description

The dimeLWPolyline class handles an LWPOLYLINE entity.

Constructor & Destructor Documentation

dimeLWPolyline::dimeLWPolyline ( )

Constructor.

dimeLWPolyline::~dimeLWPolyline ( )
virtual

Destructor.

Member Function Documentation

dimeEntity * dimeLWPolyline::copy ( dimeModel *const  model) const
virtual

Must be implemented by subclasses to return a copy of the entity. model is the model the new entity should belong to.

Implements dimeEntity.

References dimeExtrusionEntity::copyExtrusionData(), dimeEntity::copyRecords(), and dimeModel::getMemHandler().

int dimeLWPolyline::countRecords ( ) const
virtual

Returns the number of records in the record holder. Should be overloaded by subclasses which should count their records, and then call the parent's method. This method is used to precalculate the number of records to be written. Very useful when progress information is needed during write().

Reimplemented from dimeExtrusionEntity.

dimeEntity::GeometryType dimeLWPolyline::extractGeometry ( dimeArray< dimeVec3f > &  verts,
dimeArray< int > &  indices,
dimeVec3f extrusionDir,
dxfdouble &  thickness 
)
virtual

A special convenience function, included for your pleasure. Enables the user to ignore the type of entity, and just call this method when extracting geometry. Very useful for 3D viewers that need DXF support. Check out the dxf2vrml directory for an example on how to convert a DXF file to VRML.

Should be overloaded by all subclasses that have geometry, default function returns no geometry. Don't forget to transform vertices by the current transformation matrix if used in a callback from dimeEntity::traverse().

If there are coordinates, but no indices, this means running indices for the entire vertex array.

Different faces and/or line segments are separated by a -1 in the indices array, just as in VRML files.

If thickness != 0.0, the data should, before transformation, be extruded by that length along the extrusion direction. Hence, a point becomes a line, a line becomes a quad, and a polygon becomes an object with a volume.

If thickness == 0.0 and extrusionDir != (0,0,1) all the vertices should be transformed by a matrix that can be created using dimeEntity::generateUCS(). If you are using dimeModel::traverseEntities() to extract the geometry, simply right-multiply the UCS matrix with the matrix found in dimeState to get the correct transformation.

Reimplemented from dimeEntity.

const char * dimeLWPolyline::getEntityName ( ) const
virtual

Must be implemented by subclasses to return the entity name; e.g. POLYLINE, 3DFACE, etc.

Implements dimeEntity.

bool dimeLWPolyline::getRecord ( const int  groupcode,
dimeParam param,
const int  index 
) const
virtual

Will return the value of the record with group code groupcode. false is returned if the record could not be found. Subclasses should overload this method if one or several records are stored in the class. If the groupcode queried is not stored internally, the subclass should call its parent's method.

Reimplemented from dimeExtrusionEntity.

bool dimeLWPolyline::handleRecord ( const int  groupcode,
const dimeParam param,
dimeMemHandler *const  mh 
)
protectedvirtual

Handles the callback from dimeEntity::readRecords().

Reimplemented from dimeExtrusionEntity.

int dimeLWPolyline::typeId ( ) const
virtual

Must be implemented by all subclasses, and should return an unique id for that class.

Reimplemented from dimeExtrusionEntity.

bool dimeLWPolyline::write ( dimeOutput *const  file)
virtual

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

Copyright © 1998-1999, Systems In Motion <sales@sim.no>. All rights reserved.
System documentation was generated using doxygen.