public Scientrace.Location constructPlaneNodeLoc(Scientrace.Location planeCenter, double radius,
double angle, Scientrace.NonzeroVector baseVec1, Scientrace.NonzeroVector baseVec2)
{
Scientrace.Vector ix = baseVec1.toVector() * radius * Math.Sin(angle);
Scientrace.Vector iy = baseVec2.toVector() * radius * Math.Cos(angle);
return(planeCenter + ix + iy);
}
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 Vector reflectOnSurface(Scientrace.NonzeroVector norm)
{
Scientrace.Vector negdir = this.negative();
// Relative mirrorpoint: disregard the location of the line, just the orientations.
Scientrace.Vector rel_mirrorpoint = (norm.toVector() * negdir.dotProduct(norm));
//the distance from the surface normal to the direction vector (in the opposite direction) of the incoming line
Scientrace.Vector distance_to_normal = (negdir - rel_mirrorpoint);
//the direction of the reflected line
return(rel_mirrorpoint - distance_to_normal);
}
public ParallelSquareLightSource(Scientrace.Object3dEnvironment env, Scientrace.Location cloc, Scientrace.UnitVector direction, Scientrace.NonzeroVector u, Scientrace.NonzeroVector v, int ucount, int vcount, double wavelength) : base(env)
{
Scientrace.Location loc = (cloc - ((u * (ucount - 1) * 0.5) + (v * (vcount - 1) * 0.5))).toLocation();
for (int iu = 0; iu < ucount; iu++)
{
for (int iv = 0; iv < vcount; iv++)
{
//Console.WriteLine("New line at "+(loc+((u.toVector()*iu)+(v.toVector()*iv)).toLocation()).trico());
Scientrace.Line line = new Scientrace.Line(loc + ((u.toVector() * iu) + (v.toVector() * iv)).toLocation(), direction);
this.addTrace(new Scientrace.Trace(wavelength, this, line, env, 1, 1));
}
}
}
public void addElements()
{
/* see sine_rule_applied.svg */
double alpha;
double beta, gamma;
alpha = this.largeAngle;
gamma = this.relative_angle;
beta = Math.PI - (alpha + gamma);
/* vteethheight is the vector of the triangularprism that points to the top (see vector "h" below)
* /\
* / \
* / \
* / \
* \ /|
* l = \ h=/ |
* \ / |
* \/___|
* w = ^
* since uvLargeAngle // b... */
Scientrace.UnitVector v1u = this.surfacev1.toUnitVector();
Scientrace.UnitVector v3u = this.surfacev3.toUnitVector();
UnitVector uvLargeAngle = null;
try {
uvLargeAngle = (v3u.toVector() * Math.Sin(alpha) + //"z" axis
v1u.toVector() * Math.Cos(alpha)).tryToUnitVector(); //"x" axis
} catch (Exception e) {
throw new ZeroNonzeroVectorException("Large angle for FresnelPrism has a calculated length 0 \n" + e.Message);
}
/* the short angle direction vector below is not used. Commented for possibel relevant future use.
* Scientrace.UnitVector uvShortAngle = (v1u*Math.Sin(this.largeAngle+this.relative_angle) + //"x" axis
* v3u*Math.Cos(this.largeAngle+this.relative_angle)).tryToUnitVector(); //"z" axis */
double teethwidth = 2 * this.surfacev1.length / Convert.ToDouble(this.teethCount); //2* because v1 represents a radius, not diameter.
Scientrace.NonzeroVector vteethheight = null;
try {
vteethheight = uvLargeAngle * teethwidth * ((Math.Sin(beta)) / (Math.Sin(gamma)));
} catch (Exception e) {
throw new ZeroNonzeroVectorException("Teeth height for FresnelPrism has a calculated length 0 \n" + e.Message);
}
Scientrace.Location v1base = (this.loc - this.surfacev1.toLocation());
double vratio = this.surfacev2.length / this.surfacev1.length;
Scientrace.NonzeroVector vteethwidth = this.surfacev1.toUnitVector() * teethwidth;
/* Adding teeth to collection, pointing in v3 direction */
for (int itooth = 0; itooth < this.teethCount; itooth++)
{
double distfromcenter = (Math.Abs((0.5 * teethCount) - (itooth + 0.5)) - 0.5) / (0.5 * teethCount);
//vteethlength is the equiv for vector c in sine_rule_applied.svg and w in ascii scetch above.
Scientrace.NonzeroVector vteethlength = //*2 because real length is double the length from the center-line.
(this.surfacev2 * (Math.Sqrt(1 - Math.Pow(distfromcenter, 2)) * vratio)) * 2;
// Console.WriteLine(itooth+" @ "+((this.divisioncount*itooth)/this.teethCount));
Scientrace.Object3d tri = new Scientrace.TriangularPrism(
this.division[(this.divisioncount * itooth) / this.teethCount], this.fresnelMaterial,
((v1base /*+this.surfacev3*/) + (v1u.toVector() * itooth * teethwidth) - (vteethlength * 0.5)).toLocation(),
vteethwidth, vteethheight, vteethlength);
tri.tag = "prismdent_" + itooth;
}
/* Adding "top layer, circular prism, on which the teeth are attached. Height surfacev3 */
/* since the top circularprism was moved, the shift (+this.surfacev3) at the adding of the teeth was
* also commented out */
//Scientrace.CircularPrism topcircle = new Scientrace.CircularPrism(this, this.fresnelMaterial, loc, this.surfacev1, this.surfacev2, this.surfacev3);
//adding to second half, true that's a bit redundant...
//this.secondhalf.addObject3d(topcircle);
/* Define the total height of the circle and the teeth in the surfacev3-direction for the environment
* to request for total size purposes */
this.total_prism_height = //this.surfacev3.length + //OBSOLETE SINCE TOP CIRCULARPRISM HAS BEEN REMOVED
Math.Abs(vteethheight.dotProduct(this.surfacev3.toUnitVector()));
//Setting boundaries for first and second half collections:
if (this.teethCount < this.divisioncount)
{
this.divisioncount = 2;
Console.WriteLine("Warning: Less teeth(" + this.teethCount + ") for prism than divisions(" + this.divisioncount + "), now setting divisioncount to 2.");
//throw new ArgumentOutOfRangeException("Less teeth("+this.teethCount+") for prism than divisions("+this.divisioncount+")");
}
for (int idiv = 0; idiv < this.divisioncount; idiv++)
{
double divstart = Math.Ceiling((double)(idiv * teethCount) / (double)this.divisioncount);
double divend = Math.Ceiling((double)((1 + idiv) * teethCount) / (double)this.divisioncount);
//Math.Ceiling(double((idiv+1)*teethCount) / this.divisioncount);
//Console.WriteLine("idiv: "+idiv+" divstart:"+divstart+" divend:" +divend + " tc:"+teethCount+" dc:"+divisioncount);
double divstartfrac = (double)divstart / (double)teethCount;
double divendfrac = (double)divend / (double)teethCount;
this.division[idiv].dummyborder = new RectangularPrism(null, this.materialproperties,
loc - surfacev1 - surfacev2 + (surfacev1.toVector() * divstartfrac * 2), //location
(surfacev1 * (divendfrac - divstartfrac) * 2), //width or length
surfacev2 * 2, //length or width
surfacev3.normalized() * this.total_prism_height //height
);
//Console.WriteLine("DIV:"+idiv+" has "+this.division[idiv].objects.Count+" children");
}
}