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Classes_Rays.cs
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Classes_Rays.cs
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//'Pachyderm-Acoustic: Geometrical Acoustics for Rhinoceros (GPL) by Arthur van der Harten
//'
//'This file is part of Pachyderm-Acoustic.
//'
//'Copyright (c) 2008-2015, Arthur van der Harten
//'Pachyderm-Acoustic 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; either version 3 of the License, or
//'(at your option) any later version.
//'Pachyderm-Acoustic 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.
//'
//'You should have received a copy of the GNU General Public
//'License along with Pachyderm-Acoustic; if not, write to the Free Software
//'Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
using System;
using System.Collections.Generic;
using Hare.Geometry;
namespace Pachyderm_Acoustic
{
namespace Environment
{
/// <summary>
/// Ray for a single octave band.
/// </summary>
public class OctaveRay: Ray
{
public double Intensity;
public double phase = 0;
public int Octave;
public double t_sum;
public int Surf_ID;
public int Source_ID;
public OctaveRay(Point StartPt, Vector Direction, int ID, int ThreadID_IN, double Intensity_in, double phase_in, double Time, int octave, int SrcID, int srf_id)
: base(StartPt, Direction, ThreadID_IN, ID)
{
t_sum = Time;
Octave = octave;
Intensity = Intensity_in;
phase = phase_in;
Source_ID = SrcID;
Surf_ID = srf_id;
}
public OctaveRay(Point StartPt, Vector Direction, int ID, int ThreadID_IN, double Intensity_in, double phase_in, int octave, double Scat_Mod_in, int SrcID)
: base(StartPt, Direction, ThreadID_IN, ID)
{
t_sum = 0;
Octave = octave;
Intensity = Intensity_in;
phase = phase_in;
Source_ID = SrcID;
Surf_ID = -1;
}
/// <summary>
/// Appends the distance of the last ray traversal to the total distance the ray has traveled.
/// </summary>
/// <param name="Length"></param>
public void AddLeg(double t)
{
t_sum += t;
}
/// <summary>
/// Creates an octave ray with the percentage of the parent ray's energy specified by the scattering coeficient. Duely modifies the parent ray.
/// </summary>
/// <param name="E_Mod_Coef"></param>
/// <returns></returns>
public OctaveRay SplitRay( double E_Mod_Coef)
{
OctaveRay O = new OctaveRay(origin, direction, Ray_ID, ThreadID, Intensity * E_Mod_Coef, phase, t_sum, Octave, Source_ID, Surf_ID);
//O.Surf_ID = Surf_ID;
this.Intensity *= (1 - E_Mod_Coef);
return O;
}
/// <summary>
/// Creats an octave ray with the percentage of the parent ray's energy specified by the scattering coeficient. Duely modifies the parent ray.
/// </summary>
/// <param name="E_Mod_Coef"></param>
/// <param name="phase_delay"></param>
/// <returns></returns>
public OctaveRay SplitRay(double E_Mod_Coef, double phase_delay)
{
OctaveRay O = new OctaveRay(origin, direction, Ray_ID, ThreadID, Intensity * E_Mod_Coef, t_sum, Octave, Source_ID, Surf_ID);
//O.Surf_ID = Surf_ID;
this.Intensity *= (1 - E_Mod_Coef);
this.phase += phase_delay;
return O;
}
public OctaveRay Clone()
{
return new OctaveRay(this.origin, this.direction, this.Ray_ID, this.ThreadID, this.Intensity, this.phase, this.t_sum, this.Octave, this.Source_ID, this.Surf_ID);
}
}
/// <summary>
/// Ray for all octave bands.
/// </summary>
public class BroadRay : Ray
{
public double[] Energy;
public double[] phase;
public double t_sum;
public int Surf_ID;
public int Source_ID;
public int[] Octaves = new int[] { 0, 1, 2, 3, 4, 5, 6, 7 };
public BroadRay(Point StartPt, Vector Direction, int ID, int ThreadID_IN, double[] energy_in, double[] phase_in, double time, int SrcID)
: base(StartPt, Direction, ThreadID_IN, ID)
{
t_sum += time;
Energy = new double[8];
energy_in.CopyTo(Energy,0);
phase = phase_in;
Source_ID = SrcID;
Surf_ID = -1;
}
public BroadRay(Point StartPt, Vector Direction, int ID, int ThreadID_IN, double[] energy_in, double[] phase_in, double time, int SrcID, int[] _Octaves)
: base(StartPt, Direction, ThreadID_IN, ID)
{
t_sum += time;
Energy = new double[8];
energy_in.CopyTo(Energy, 0);
phase = phase_in;
Source_ID = SrcID;
Surf_ID = -1;
Octaves = _Octaves;
}
/// <summary>
/// Appends the distnace of the last ray traversal to the total distance the ray has traveled.
/// </summary>
/// <param name="Length"></param>
public void AddLeg(double time)
{
t_sum += time;
}
public BroadRay Clone()
{
return new BroadRay(origin, direction, Ray_ID, ThreadID, Energy, phase, t_sum, Source_ID);
}
/// <summary>
/// Creates an octave ray for the specified octave. After this operation, the Broadray will no longer trace this octave.
/// </summary>
/// <param name="Octave"></param>
/// <returns></returns>
public OctaveRay SplitRay(int Octave)
{
OctaveRay O = new OctaveRay(origin, direction, Ray_ID, ThreadID, Energy[Octave], phase[Octave], t_sum, Octave, Source_ID, Surf_ID);
this.Energy[Octave] = 0;
return O;
}
/// <summary>
/// Creats an octave ray for the specified octave with the percentage of the Broadray's energy specified by the scattering coeficient.
/// </summary>
/// <param name="Octave"></param>
/// <param name="Scattering_Coef"></param>
/// <returns></returns>
public OctaveRay SplitRay(int Octave, double E_Mod_Coef)
{
OctaveRay O = new OctaveRay(origin, direction, Ray_ID, ThreadID, Energy[Octave] * E_Mod_Coef, phase[Octave], t_sum, Octave, Source_ID, Surf_ID);
this.Energy[Octave] *= (1 - E_Mod_Coef);
return O;
}
}
}
}