/* Classes supporthing the creation of the lightsource */
public Scientrace.LightSource setRandomCylinderLightFromXData(XElement xlight,
Scientrace.Object3dEnvironment env)
{
//Reading LightSource parameters from XML-element
/* "RandomCylinder"
* d class.radius, d distance, i beamcount, i maxinteractions, d minintensity
* str spectrum, vec location, vec direction */
double radius = this.X.getXDouble(xlight.Attribute("Radius"));
if (radius <= 0)
{
throw new ArgumentOutOfRangeException("Radius " + radius + " out of range");
}
double distance = this.X.getXDouble(xlight.Attribute("Distance"), 0);
int beamcount = this.X.getXInt(xlight.Attribute("RayCount"), this.X.getXInt(xlight.Attribute("BeamCount")));
//int maxinteractions = this.X.getXInt(xlight.Attribute("MaxInteractions"), 8); //default value max_interactions -> 8
double minintensity = this.X.getXDouble(xlight.Attribute("MinIntensity"), 0.01); //default minimum intensity for tracing set to 1%
Scientrace.Vector light_direction = this.X.getXVector(xlight.Element("Direction"));
Scientrace.Location centerloc = this.X.getXVector(xlight.Element("Location")).toLocation();
Scientrace.Location locoffset = (light_direction.negative() * distance).toLocation(); //distance cm above surface
Scientrace.Location loc = locoffset + centerloc;
XMLSpectrumParser xsp = new XMLSpectrumParser();
Scientrace.LightSpectrum spectrum = xsp.parseLightSpectrum(xlight.Element("Spectrum"));
Scientrace.LightSource retlight = new Scientrace.RandomCircleLightSource(env,
loc, light_direction.tryToUnitVector(),
new Scientrace.Plane(new Scientrace.Location(0, 0, 0), new Scientrace.NonzeroVector(1, 0, 0), new Scientrace.NonzeroVector(0, 0, 1)),
radius, beamcount, spectrum);
//retlight.max_interactions = maxinteractions;
retlight.minimum_intensity_fraction = minintensity;
return(retlight);
}
public Scientrace.SingleRaySource setSingleRayFromXData(XElement xlight, List <Scientrace.UniformTraceModifier> utms,
Scientrace.Object3dEnvironment env)
{
double distance = this.X.getXDouble(xlight.Attribute("Distance"), 0);
int beamcount = this.X.getXInt(xlight.Attribute("RayCount"), this.X.getXInt(xlight.Attribute("BeamCount"), 1));
double minintensity = this.X.getXDouble(xlight, "MinIntensity", 0.01); //default minimum intensity for tracing set to 1%
Scientrace.NonzeroVector light_direction = this.X.getXNzVector(xlight.Element("Direction"));
Scientrace.Location centerloc = this.X.getXVector(xlight.Element("Location")).toLocation();
Scientrace.Location locoffset = (light_direction.toVector().negative() * distance).toLocation(); //distance cm above surface
Scientrace.Location loc = locoffset + centerloc;
XMLSpectrumParser xsp = new XMLSpectrumParser();
Scientrace.LightSpectrum spectrum = xsp.parseLightSpectrum(xlight.Element("Spectrum"));
if (spectrum == null)
{
throw new Exception("LightSpectrum " + xlight.Element("Spectrum").ToString() + " unknown");
}
Scientrace.SingleRaySource retlight = new Scientrace.SingleRaySource(new Scientrace.Line(loc, light_direction.toUnitVector()),
beamcount, spectrum, env);
retlight.minimum_intensity_fraction = minintensity;
retlight.lightsource_modifiers.AddRange(utms);
retlight.init();
return(retlight);
}
public Scientrace.SpiralLightSource setSpiralLightFromXData(XElement xlight, List <Scientrace.UniformTraceModifier> utms,
Scientrace.Object3dEnvironment env)
{
/* "Spiral"
* d class.radius, d class.loops, d distance, i beamcount, i maxinteractions, d minintensity
* i modulomultiplier, str spectrum, vec location, vec direction */
double radius = this.X.getXDouble(xlight.Attribute("Radius"));
if (radius < 0)
{
throw new ArgumentOutOfRangeException("Radius " + radius + " out of range");
}
double distance = this.X.getXDouble(xlight.Attribute("Distance"), 0);
int beamcount = this.X.getXInt(xlight.Attribute("RayCount"), this.X.getXInt(xlight.Attribute("BeamCount")));
//int maxinteractions = this.X.getXInt(xlight, "MaxInteractions", 8); //default value max_interactions -> 8
double minintensity = this.X.getXDouble(xlight, "MinIntensity", 0.2); //default minimum intensity for tracing set to 1%
//Spiralspecific
double loops = this.X.getXDouble(xlight, "Loops", -1);
if (loops == -1)
{
loops = 1.0154 * Math.Pow(Math.PI * 2 * (1 - Math.Sqrt(((double)beamcount - 1) / (double)beamcount)), -0.5);
Console.WriteLine("Number of loops for " + beamcount + " beams set to: {" + loops.ToString("#,0.000") + "}.");
}
Scientrace.NonzeroVector light_direction = this.X.getXNzVector(xlight.Element("Direction"));
Scientrace.NonzeroVector spiral_axis = this.X.getXNzVector(xlight.Element("SpiralAxis"));
Scientrace.Location centerloc = this.X.getXVector(xlight.Element("Location")).toLocation();
/*Scientrace.Location locoffset = (light_direction.toVector().negative()*distance).toLocation(); //distance cm above surface
* Scientrace.Location loc = locoffset + centerloc; */
XMLSpectrumParser xsp = new XMLSpectrumParser();
Scientrace.LightSpectrum spectrum = xsp.parseLightSpectrum(xlight.Element("Spectrum"));
if (spectrum == null)
{
throw new Exception("LightSpectrum " + xlight.Element("Spectrum").ToString() + " unknown");
}
double divangle = 0;
double divdistance = 0;
Scientrace.NonzeroVector divpinvec = null; //= new Scientrace.NonzeroVector(0,1,0);
int divsteps = 1;
bool divincludebase = true;
this.getDivergence(xlight, ref divangle, ref divpinvec, ref divdistance, ref divincludebase, ref divsteps);
if (divangle > 0)
{
if (divpinvec.crossProduct(light_direction).length == 0)
{
throw new ArgumentOutOfRangeException("divpinvec", "Divergence Pinvector (" + divpinvec.trico() + ") is parallel to light directon (" +
light_direction.trico() + ")");
}
}
// INSERT OPERATION THAT MAKES BOTH SPIRAL PLANE VECTORS ORTHOGONAL TO DIRECTION
Scientrace.Plane spiralplane = Scientrace.Plane.newPlaneOrthogonalTo(centerloc, spiral_axis);
//Scientrace.NonzeroVector direction = light_direction.tryToUnitVector();
Scientrace.SpiralLightSource retlight = new Scientrace.SpiralLightSource(env, centerloc, light_direction.toUnitVector(),
spiralplane, beamcount, radius, loops, distance, spectrum);
/* BEFORE REMOVAL OF DISPERSION_STEPS Scientrace.LightSource retlight = new Scientrace.SpiralLightSource(env, loc, light_direction.toUnitVector(),
* spiralplane, beamcount, radius, loops, spectrum,
* divangle, divpinvec, divdistance, divincludebase, divsteps); */
//retlight.max_interactions = maxinteractions;
retlight.minimum_intensity_fraction = minintensity;
retlight.lightsource_modifiers.AddRange(utms);
//retlight.createStartTraces();
return(retlight);
}
public void setLightSourceConstructorParams(ShadowScientrace.ShadowLightSource shadowLS, XElement xel)
{
// STRUCTURE
/* "dictionary name of the parameter"
* Description of this parameters
* used at: list of light source classes that use this parameter
* nullable: yes if this field may be empty
*/
/* "location"
* The location of the light source
* used at: all
* nullable: no
*/
Scientrace.Location location = this.X.getXLocation(xel, "Location", null);
shadowLS.arguments.Add("location", location);
/* "width" and "height"
* The width of the light source
* used at: random square light source
* nullable: yes
*/
Scientrace.Vector width = this.X.getXLocation(xel, "Width", null);
Scientrace.Vector height = this.X.getXLocation(xel, "Height", null);
shadowLS.arguments.Add("width", width);
shadowLS.arguments.Add("height", height);
/* "ray count"
* The number of traces that will be initiated by the light source,
* some of the rays may be split or absorbed during simulation
* Previously called: BeamCount, but renamed to RayCount.
* used at: SpiralLightSource
* nullable: no
*/
int ray_count = this.X.getXInt(xel, "RayCount", this.X.getXInt(xel, "BeamCount", 256));
shadowLS.arguments.Add("ray_count", ray_count);
/* "loops"
* The number of loops the spiral makes
* used at: SpiralLightSource
* nullable: yes
*/
if (this.X.hasAttribute(xel, "Loops"))
{
double?loops = this.X.getXNullDouble(xel, "Loops");
/* MOVED TO SPIRALLIGHTSOURCE
* if (loops == -1) {
* loops = 1.0154 * Math.Pow(Math.PI*2*(1-Math.Sqrt(((double)ray_count - 1) / (double)ray_count)), -0.5);
* Console.WriteLine("Number of loops for "+ray_count+" beams set to: {"+loops.ToString("#,0.000")+"}.");
* } */
shadowLS.arguments.Add("loops", loops);
}
/* "radius"
* The radius for any circle shaped irradiating surface
* used at: SpiralLightSource
* nullable: no
*/
double?radius = this.X.getXNullDouble(xel, "Radius");
if (radius == null)
{
radius = this.X.getXNullDouble(xel, "Diameter") / 2;
}
if (radius != null && radius < 0)
{
throw new ArgumentOutOfRangeException("Radius " + radius + " out of range");
}
shadowLS.arguments.Add("radius", radius);
/* "distance"
* In some cases the user might want to describe a surface/orientation where the
* rays to trace pass, but should they actually start a given distance up front.
* The distance parameter describes the distance to start "before" the given surface.
* used at: SpiralLightSource
* nullable: default = 0
*/
shadowLS.arguments.Add("distance", this.X.getXDouble(xel, "Distance", 0));
/* "weighted_intensity"
* The intensity of the entire lightsource may be weighted/redefined by setting its intensity.
* nullable: yes
* used at: all
*/
shadowLS.arguments.Add("weighted_intensity", this.X.getXNullDouble(xel, "Intensity"));
/* "random_seed"
* In order to make repreducable results, a randomized may be seeded
* used at: RandomSquare
* nullable: default = null
*/
shadowLS.arguments.Add("random_seed", this.X.getXNullInt(xel, "RandomSeed"));
/* "direction"
* The direction in which the rays leave the (parallel) source
* used at: SpiralLightSource, RandomSquare
* nullable: no
*/
shadowLS.arguments.Add("direction", this.X.getXUnitVectorByName(xel, "Direction", null));
/* "orthogonal to plane in which the "circle of light" is created"
* used at: RandomCircleLightSource
* nullable: yes
*/
shadowLS.arguments.Add("normal", this.X.getXUnitVectorByName(xel, "Normal", null));
/* "orthogonal to plane about which spiral is created"
* sued at: SpiralLightSource
* nullable: yes
*/
Scientrace.NonzeroVector spiral_axis = this.X.getXNzVectorByName(xel, "SpiralAxis", null);
if (spiral_axis != null)
{
Scientrace.Plane spiralplane = Scientrace.Plane.newPlaneOrthogonalTo(location, spiral_axis);
shadowLS.arguments.Add("spiral_plane", spiralplane);
}
/* "spectrum"
* The wavelengths that are irradiated by the source with their relative intensities
* used at: all except CustomTraces
*
*/
XMLSpectrumParser xsp = new XMLSpectrumParser();
Scientrace.LightSpectrum spectrum = xsp.parseLightSpectrum(xel.Element("Spectrum"));
//if (spectrum==null) { throw new Exception("LightSpectrum "+xel.Element("Spectrum").ToString()+" unknown"); }
shadowLS.arguments.Add("spectrum", spectrum);
/* "efficiency_characteristics"
* If the performance of a cell depends on the angle of incidence or the wavelength of light, it can be defined
* in efficiency_characteristics. The default fractions are "1" for both.
* used at: all
*/
XMLEfficiencyCharacteristicsParser xecp = new XMLEfficiencyCharacteristicsParser();
Scientrace.OpticalEfficiencyCharacteristics oec = xecp.parseEfficiencyForLightSource(xel);
shadowLS.arguments.Add("efficiency_characteristics", oec);
/* "traces_list"
* A generic List<Scientrace.Trace> with traces that are manually added to a lightsource.
* used at: CustomTraces
*/
shadowLS.arguments.Add("traces_list", this.getCustomTracesListFromXData(xel, shadowLS.env));
}
