MetaBall Class Reference
A MetaObject exerts a positive or negative 'charge' in a scalar field, whose isocontours (level sets) define blobby surfaces with different threshold values corresponding to the contour level. MetaObjects positively or negatively affect their neighboring MetaObjects depending on their 'strength' and 'negative' attributes. A MetaBall exerts a non-zero charge (aka influence) over a spherical region emanating from a single point, 'position', out to a maximum distance of 'radius'. More...
#include <MetaBall.h>
Inheritance diagram for MetaBall:
Public Member Functions | |
Constructors | |
| MetaBall (real_t strength=1.0, bool negative=false, const Point3 &position=Point3(), real_t radius=1.0) | |
| virtual | ~MetaBall () |
Core functionality | |
| virtual void | init () |
| Performs any initialization which may be necessary before calling getAABB or evaluate. | |
| virtual AABB | getAABB () const |
| virtual real_t | evaluate (const Point3 &pt) const |
Accessors / Mutators | |
| Point3 | getPosition () const |
| void | setPosition (const Point3 &position) |
| sets the initial charge of this object | |
| real_t | getRadius () const |
| void | setRadius (real_t radius) |
| sets the radius of this MetaBall | |
Protected Attributes | |
| AABB | m_aabb |
| Point3 | m_position |
| real_t | m_radius |
Detailed Description
A MetaObject exerts a positive or negative 'charge' in a scalar field, whose isocontours (level sets) define blobby surfaces with different threshold values corresponding to the contour level. MetaObjects positively or negatively affect their neighboring MetaObjects depending on their 'strength' and 'negative' attributes. A MetaBall exerts a non-zero charge (aka influence) over a spherical region emanating from a single point, 'position', out to a maximum distance of 'radius'.
- Date:
- Spring 2008
- Parameters:
-
position - center of sphere defining region of influence radius - maximum extent of influence
- See also:
- also Blob
also MetaObject
Definition at line 31 of file MetaBall.h.
Constructor & Destructor Documentation
| MetaBall::MetaBall | ( | real_t | strength = 1.0, |
|
| bool | negative = false, |
|||
| const Point3 & | position = Point3(), |
|||
| real_t | radius = 1.0 | |||
| ) | [inline] |
Definition at line 36 of file MetaBall.h.
| virtual MetaBall::~MetaBall | ( | ) | [inline, virtual] |
Definition at line 43 of file MetaBall.h.
Member Function Documentation
| void MetaBall::init | ( | ) | [virtual] |
Performs any initialization which may be necessary before calling getAABB or evaluate.
Reimplemented from MetaObject.
Definition at line 31 of file MetaBall.cpp.
| AABB MetaBall::getAABB | ( | ) | const [virtual] |
- Returns:
- the bounding box of influence which bounds the range in which this MetaBall may have a non-zero charge
Implements MetaObject.
Definition at line 49 of file MetaBall.cpp.
- Returns:
- this MetaBall's charge at the given point
- Note:
- If the given point is outside of this MetaBall's AABB, evaluate is assumed to return zero
Implements MetaObject.
Definition at line 53 of file MetaBall.cpp.
| Point3 MetaBall::getPosition | ( | ) | const [inline] |
| void MetaBall::setPosition | ( | const Point3 & | position | ) | [inline] |
| real_t MetaBall::getRadius | ( | ) | const [inline] |
| void MetaBall::setRadius | ( | real_t | radius | ) | [inline] |
Member Data Documentation
AABB MetaBall::m_aabb [protected] |
Definition at line 102 of file MetaBall.h.
Point3 MetaBall::m_position [protected] |
Definition at line 103 of file MetaBall.h.
real_t MetaBall::m_radius [protected] |
Definition at line 104 of file MetaBall.h.
The documentation for this class was generated from the following files:
Generated on 28 Feb 2009 for Milton by
1.5.6