CanopyGenerator.cpp File Reference

#include "CanopyGenerator.h"
#include "pugixml.hpp"

Go to the source code of this file.

Functions
float	getVariation (float V, std::minstd_rand0 &generator, bool positive)
	Draw a random number (float) from a uniform distribution between -V and V.
int	getVariation (int V, std::minstd_rand0 &generator, bool positive)
	Draw a random number (int) from a uniform distribution between -V and V.
uint	getVariation (uint V, std::minstd_rand0 &generator)
	Draw a random number (uint) from a uniform distribution between 0 and V.
helios::vec3	interpolateTube (const std::vector< vec3 > &P, float frac)
	Interpolate the position of a point along a tube.
float	interpolateTube (const std::vector< float > &P, float frac)
	Interpolate the radius of a point along a tube.
float	evaluateCDFresid (float thetaL, std::vector< float > &ru_v, const void *a_distribution)
	Evaluate the error between a predicted and actual leaf angle cumulative distribution at a given leaf angle.

Detailed Description

Primary source file for canopy geometry generator plug-in.

Copyright (C) 2016-2025 Brian Bailey

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

Definition in file CanopyGenerator.cpp.

Function Documentation

evaluateCDFresid()

float evaluateCDFresid	(	float	thetaL,
		std::vector< float > &	ru_v,
		const void *	a_distribution
	)

Evaluate the error between a predicted and actual leaf angle cumulative distribution at a given leaf angle.

Parameters

[in]	thetaL	Leaf angle in radians.
[in]	ru_v	Predicted CDF value (on the first value in this vector is used - it is a vector so it matches the arguments needed by the 'fzero' function).
[in]	a_distribution	Label for a "classical" leaf angle distribution (spherical, uniform, planophile, erectophile, plagiophile, extremophile).

Definition at line 3082 of file CanopyGenerator.cpp.

getVariation() [1/3]

float getVariation	(	float	V,
		std::minstd_rand0 &	generator,
		bool	positive = false
	)

Draw a random number (float) from a uniform distribution between -V and V.

Parameters

[in]	V	Maximum/minimum value of the distribution.
[in]	generator	Random number generator.
[in]	positive	If true, only positive values are returned.

Definition at line 2776 of file CanopyGenerator.cpp.

getVariation() [2/3]

int getVariation	(	int	V,
		std::minstd_rand0 &	generator,
		bool	positive = false
	)

Draw a random number (int) from a uniform distribution between -V and V.

Parameters

[in]	V	Maximum/minimum value of the distribution.
[in]	generator	Random number generator.
[in]	positive	If true, only positive values are returned.

Definition at line 2787 of file CanopyGenerator.cpp.

getVariation() [3/3]

uint getVariation	(	uint	V,
		std::minstd_rand0 &	generator
	)

Draw a random number (uint) from a uniform distribution between 0 and V.

Parameters

[in]	V	Maximum/minimum value of the distribution.
[in]	generator	Random number generator.

Definition at line 2798 of file CanopyGenerator.cpp.

interpolateTube() [1/2]

float interpolateTube	(	const std::vector< float > &	P,
		float	frac
	)

Interpolate the radius of a point along a tube.

Parameters

[in]	P	Vector of radii making up the tube.
[in]	frac	Fractional position along the tube.

Definition at line 3048 of file CanopyGenerator.cpp.

interpolateTube() [2/2]

helios::vec3 interpolateTube	(	const std::vector< helios::vec3 > &	P,
		float	frac
	)

Interpolate the position of a point along a tube.

Parameters

[in]	P	Vector of 3D points making up the tube.
[in]	frac	Fractional position along the tube.

Definition at line 3014 of file CanopyGenerator.cpp.