/* END CONSTRUCTORS */
public override bool directedTowardsObjectside(Scientrace.SurfaceSide side, Trace aTrace)
{
Scientrace.NonzeroVector traceline_direction = aTrace.traceline.direction;
switch (side)
{
case Scientrace.SurfaceSide.Back: // == SurfaceSide.Inside
// Vector is directed TOWARDS (so in the contrary direction) of the surface normal
// if (aVector.dotProduct(this.front_normal_direction)>0)
/*Console.WriteLine(aTrace.traceid+" analysing: "+traceline_direction.tricon()+" from: "+aTrace.traceline.startingpoint.tricon()+
* aTrace.parent.intensityFraction()+" = intensity \n"+
* " DISTANCE: "+(aTrace.endloc-aTrace.traceline.startingpoint).length +" direction along: "+this.front_normal_direction.trico()+ " @"+aTrace.currentObject.GetType()); */
return(traceline_direction.dotProduct(this.front_normal_direction) > 0);
//break;
case Scientrace.SurfaceSide.Front:
// Vector is directed AWAY FROM (so along the direction) of the surface normal
return(traceline_direction.dotProduct(this.front_normal_direction) < 0);
//break;
case Scientrace.SurfaceSide.Both:
return(true);
//break;
default:
throw new NotImplementedException("Side " + side.ToString() + " not implemented");
//break;
}
}
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");
}
}