osgCloudyDay::CloudGenerator Class Reference

#include <CloudGenerator.h>

Inheritance diagram for osgCloudyDay::CloudGenerator:

List of all members.

Public Member Functions
	CloudGenerator (osg::Vec4 density)
virtual	~CloudGenerator (void)=0
WangCloud *	Create ()
WangCloud *	Create (osg::Vec3 middlepoint)
virtual void	Initialize ()=0
void	DecideInsideOutside ()
void	AddCloudBox (int box_iter, osg::Vec3 origin, osg::Vec3 sizes, osg::Vec3 cloud_size, osg::Vec3 jitter_sizes, bool buttom, float s, osg::Vec4 min_max_scale, osg::Vec4 density=osg::Vec4(1.0f, 1.0f, 1.0f, 1.0f))
void	AddCloudBox (CloudCreateVolume *volume, int box_iter, osg::Vec3 origin, osg::Vec3 sizes, osg::Vec3 cloud_size, osg::Vec3 jitter_sizes, bool buttom, osg::Vec4 density=osg::Vec4(1.0f, 1.0f, 1.0f, 1.0f))
void	EliminateRedudantSprites ()
void	AddBox (osg::ref_ptr< osg::Vec3Array > box_triangles, osg::Vec3 posHelper, osg::Vec3 size)

Static Public Member Functions
static void	DoExport ()

Public Attributes
WangCloud *	m_cloud
osg::ref_ptr< osg::Geode >	dBoxes

Static Public Attributes
static Export *	ex = new Export()
static int	numClouds = 0

Static Protected Member Functions
static void	GenerateRandomNumber ()
static float	GetRandomFloat ()

Protected Attributes
osg::ref_ptr< osg::Vec3Array >	dBoxes_vertices
std::vector< unsigned short >	dBoxes_indices
osg::ref_ptr< osg::Geometry >	dBoxes_geometry
int	m_category
osg::Vec3	m_middlepoint
osg::Vec4	m_density

Static Protected Attributes
static float *	m_frands = 0
static int	m_iterFloatRand = 0

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Detailed Description

This abstract class is used to create a cloud.

Author:

Michael Beham

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Constructor & Destructor Documentation

osgCloudyDay::CloudGenerator::CloudGenerator

(

osg::Vec4

density

)

Standard constructor

osgCloudyDay::CloudGenerator::~CloudGenerator ( void  )

pure virtual

Standard deconstructor

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Member Function Documentation

void osgCloudyDay::CloudGenerator::AddBox	(	osg::ref_ptr< osg::Vec3Array >	box_triangles,
		osg::Vec3	posHelper,
		osg::Vec3	size
	)

This method creates a box, which is used for debugging and creating of a cloud

void osgCloudyDay::CloudGenerator::AddCloudBox	(	int	box_iter,
		osg::Vec3	origin,
		osg::Vec3	sizes,
		osg::Vec3	cloud_size,
		osg::Vec3	jitter_sizes,
		bool	buttom,
		float	s,
		osg::Vec4	min_max_scale,
		osg::Vec4	density = osg::Vec4(1.0f,1.0f,1.0f,1.0f)
	)

This method creates the sprites within the specified box.

Parameters:

box_iter	index of the box
origin	origin of the box
sizes	number of sprites which should be created
cloud_size	size of the box
jitter_sizes	defines the range of the jitter
buttom	is true, if the box is at the buttom
s	defines the size of the sprite (this size is used for width and height)
min_max_scale	defines the minium size maximum size

void osgCloudyDay::CloudGenerator::AddCloudBox	(	CloudCreateVolume *	volume,
		int	box_iter,
		osg::Vec3	origin,
		osg::Vec3	sizes,
		osg::Vec3	cloud_size,
		osg::Vec3	jitter_sizes,
		bool	buttom,
		osg::Vec4	density = osg::Vec4(1.0f,1.0f,1.0f,1.0f)
	)

This method creates the sprites within the specified box.

Parameters:

volume	control polygon
box_iter	index of the box
origin	origin of the box
sizes	number of sprites which should be created
cloud_size	size of the box
jitter_sizes	defines the range of the jitter
buttom	is true, if the box is at the buttom
s	defines the size of the sprite (this size is used for width and height)
min_max_scale	defines the minium size maximum size

osgCloudyDay::WangCloud * osgCloudyDay::CloudGenerator::Create

(

)

This method creates a cloud.

osgCloudyDay::WangCloud * osgCloudyDay::CloudGenerator::Create

(

osg::Vec3

middlepoint

)

This method creates a cloud.

Parameters:

middlepoint	middlepoint of cloud layer
size	boundingboxsize of cloud layer
numClouds	Number of clouds

void osgCloudyDay::CloudGenerator::DecideInsideOutside

(

)

Method sets a billboard to inside/outside

void osgCloudyDay::CloudGenerator::DoExport ( )

static

This method exports the clouds

void osgCloudyDay::CloudGenerator::EliminateRedudantSprites

(

)

This method reject redundant sprites (sprites which are too close to other sprites).

void osgCloudyDay::CloudGenerator::GenerateRandomNumber ( )

staticprotected

Generate the random numbers

float osgCloudyDay::CloudGenerator::GetRandomFloat ( )

staticprotected

Returns a random number

Returns:

random number

virtual void osgCloudyDay::CloudGenerator::Initialize ( )

pure virtual

This method specifies the boxes and uses AddBox to define the Sprites

Implemented in osgCloudyDay::CloudCreatorWang, osgCloudyDay::CelluarAutomataGenerator, osgCloudyDay::CumulusGenerator, osgCloudyDay::CloudVoxel, osgCloudyDay::ObjCloud, osgCloudyDay::CumolonimbusGenerator, osgCloudyDay::AltCumulusGenerator, osgCloudyDay::AltStratusGenerator, osgCloudyDay::NimbostratusGenerator, osgCloudyDay::StratoCumulusGenerator, osgCloudyDay::StratusGenerator, and osgCloudyDay::DataCloud.

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

• WangCloud/CloudGenerator.h
• WangCloud/CloudGenerator.cpp