dime  0.9.1
Portable DXF file library
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dimeCircle Class Reference

The dimeCircle class handles a CIRCLE entity. More...

#include <dime/entities/Circle.h>

Inheritance diagram for dimeCircle:
dimeExtrusionEntity dimeEntity dimeRecordHolder dimeBase

Public Member Functions

 dimeCircle ()
 
virtual dimeEntitycopy (dimeModel *const model) const
 
virtual int countRecords () const
 
virtual GeometryType extractGeometry (dimeArray< dimeVec3f > &verts, dimeArray< int > &indices, dimeVec3f &extrusionDir, dxfdouble &thickness)
 
const dimeVec3fgetCenter () const
 
virtual const char * getEntityName () const
 
dxfdouble getRadius () const
 
virtual bool getRecord (const int groupcode, dimeParam &param, const int index=0) const
 
virtual void print () const
 
void setCenter (const dimeVec3f &c)
 
void setRadius (const dxfdouble val)
 
virtual int typeId () const
 
virtual bool write (dimeOutput *const out)
 
- Public Member Functions inherited from dimeExtrusionEntity
 dimeExtrusionEntity ()
 
const dimeVec3fgetExtrusionDir () const
 
dxfdouble getThickness () const
 
virtual bool isOfType (const int thtypeid) const
 
void setExtrusionDir (const dimeVec3f &v)
 
void setThickness (const dxfdouble val)
 
- Public Member Functions inherited from dimeEntity
 dimeEntity ()
 
virtual ~dimeEntity ()
 
int16 getColorNumber () const
 
int16 getEntityFlags () const
 
const dimeLayergetLayer () const
 
const char * getLayerName () const
 
bool isDeleted () const
 
bool isTagged () const
 
virtual bool read (dimeInput *const in)
 
void setColorNumber (const int16 c)
 
void setDeleted (const bool onOff=true)
 
void setEntityFlags (const int16 flags)
 
virtual void setLayer (const dimeLayer *const layer)
 
void setTagged (const bool onOff=true)
 
- Public Member Functions inherited from dimeRecordHolder
 dimeRecordHolder (const int separator)
 
virtual ~dimeRecordHolder ()
 
dimeRecordfindRecord (const int groupcode, const int index=0)
 
int getNumRecordsInRecordHolder (void) const
 
dimeRecordgetRecordInRecordHolder (const int idx) const
 
void setIndexedRecord (const int groupcode, const dimeParam &value, const int index, dimeMemHandler *const memhandler=NULL)
 
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)
 
- Public Member Functions inherited from dimeBase
 dimeBase (void)
 
virtual ~dimeBase ()
 
void operator delete (void *ptr)
 
void * operator new (size_t size, dimeMemHandler *memhandler=NULL, const int alignment=4)
 

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 copyRecords (dimeEntity *const entity, dimeModel *const model) const
 
virtual void fixReferences (dimeModel *const model)
 
bool preWrite (dimeOutput *const file)
 
virtual bool shouldWriteRecord (const int groupcode) const
 
virtual bool traverse (const dimeState *const state, dimeCallback callback, void *userdata)
 
- 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 }
 
- Public Types inherited from dimeBase
enum  {
  dimeBaseType = 1 , dimeRecordType , dimeStringRecordType , dimeFloatRecordType ,
  dimeDoubleRecordType , dimeInt8RecordType , dimeInt16RecordType , dimeInt32RecordType ,
  dimeHexRecordType , dimeRecordHolderType , dimeClassType , dimeUnknownClassType ,
  dimeObjectType , dimeUnknownObjectType , dimeEntityType , dimeUnknownEntityType ,
  dimePolylineType , dimeVertexType , dimeFaceEntityType , dimeExtrusionEntityType ,
  dime3DFaceType , dimeSolidType , dimeTraceType , dimeLineType ,
  dimeTextType , dimePointType , dimeBlockType , dimeInsertType ,
  dimeCircleType , dimeArcType , dimeLWPolylineType , dimeEllipseType ,
  dimeSplineType , dimeSectionType , dimeUnknownSectionType , dimeEntitiesSectionType ,
  dimeBlocksSectionType , dimeTablesSectionType , dimeHeaderSectionType , dimeClassesSectionType ,
  dimeObjectsSectionType , dimeTableType , dimeTableEntryType , dimeUnknownTableType ,
  dimeUCSTableType , dimeLayerTableType , dimeLastTypeTag
}
 
- Static Public Member Functions inherited from dimeEntity
static void arbitraryAxis (const dimeVec3f &givenaxis, dimeVec3f &newaxis)
 
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 dimeEntitycreateEntity (const char *const name, dimeMemHandler *const memhandler=NULL)
 
static void generateUCS (const dimeVec3f &givenaxis, dimeMatrix &m)
 
static bool readEntities (dimeInput *const file, dimeArray< dimeEntity * > &array, const char *const stopat)
 
- Protected Attributes inherited from dimeExtrusionEntity
dimeVec3f extrusionDir
 
dxfdouble thickness
 
- Protected Attributes inherited from dimeRecordHolder
int numRecords
 
dimeRecord ** records
 

Detailed Description

The dimeCircle class handles a CIRCLE entity.

Constructor & Destructor Documentation

◆ dimeCircle()

dimeCircle::dimeCircle ( )

Constructor.

Member Function Documentation

◆ copy()

dimeEntity * dimeCircle::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.

◆ countRecords()

int dimeCircle::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.

◆ extractGeometry()

dimeEntity::GeometryType dimeCircle::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.

◆ getEntityName()

const char * dimeCircle::getEntityName ( ) const
virtual

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

Implements dimeEntity.

◆ getRecord()

bool dimeCircle::getRecord ( const int groupcode,
dimeParam & param,
const int index = 0 ) 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 group code queried is not stored internally, the subclass should call its parent's method.

Reimplemented from dimeExtrusionEntity.

◆ handleRecord()

bool dimeCircle::handleRecord ( const int groupcode,
const dimeParam & param,
dimeMemHandler *const memhandler )
protectedvirtual

Handles the callback from dimeEntity::readRecords().

Reimplemented from dimeExtrusionEntity.

◆ print()

void dimeCircle::print ( ) const
virtual

Reimplemented from dimeEntity.

◆ typeId()

int dimeCircle::typeId ( ) const
virtual

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

Reimplemented from dimeExtrusionEntity.

◆ write()

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

This method writes a DXF Circle entity to file.

Reimplemented from dimeEntity.


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