public GLPolygon NearestPolygon(GLPoint P)
{
//Logger.WriteToLog("Detecting nearest polygon to point: " + P.ToString());
GLPolygon nearestPolygon = null;
var minDistance = double.MaxValue;
var i = 0;
foreach (var pol in Polygons)
{
var d = pol.DistanceToPoint(P);
if (d < minDistance)
{
minDistance = d;
nearestPolygon = pol;
}
//Logger.WriteToLog(String.Format("Distance to polygon {0}: {1} ",i,d.ToString("#0.00")));
i++;
}
return(nearestPolygon);
}
public GLPolygon NearestPolygon(GLPoint P)
{
GLPolygon nearestPolygon = null;
var minDistance = double.MaxValue;
var i = 0;
foreach (var obj in Objects)
{
if (obj is GLObject)
{
var d = obj.DistanceToPoint(P);
if (d == -1)
{
// some error
continue;
}
if (d < minDistance)
{
minDistance = d;
nearestPolygon = (obj as GLObject).NearestPolygon(P);
}
}
i++;
}
return(nearestPolygon);
}
public static GLObject CreateFromPolygon(GLPolygon pol, string name)
{
var res = new GLObject()
{
Name = name
};
res.Polygons.Add(pol);
return(res);
}
public static GLPolygon CreateFromPoints(IEnumerable <GLPoint> points)
{
var pol = new GLPolygon();
foreach (var point in points)
{
pol.Points.Add(point);
}
return(pol);
}
public override void LoadFromXmlElement(Context context, XmlElement element)
{
base.LoadFromXmlElement(context, element);
var polygonNodes = element.SelectNodes("./polygon");
foreach (XmlElement polygonElement in polygonNodes)
{
var pol = new GLPolygon();
pol.LoadFromXmlElement(polygonElement);
Polygons.Add(pol);
}
}
public GLPolygon Clone()
{
var pol = new GLPolygon();
pol.FillColor = FillColor;
pol.Texture = Texture;
pol.Visible = Visible;
pol.Points = new List <GLPoint>();
foreach (var point in Points)
{
pol.Points.Add(new GLPoint(point.X, point.Y, point.Z));
}
return(pol);
}
public void CreatePolygons()
{
Polygons.Clear();
for (var j = 0; j <= Slices; j++)
{
var angleJ = j * 360.0 / (double)Slices;
var angleJ2 = (j + 1) * 360.0 / (double)Slices;
for (var i = 0; i <= Stacks; i++)
{
var angleI = i * 180.0 / (double)Stacks;
var angleI2 = (i + 1) * 180.0 / (double)Stacks;
var A = Spherical(Radius, angleI, angleJ);
var B = Spherical(Radius, angleI, angleJ2);
var C = Spherical(Radius, angleI2, angleJ2);
var D = Spherical(Radius, angleI2, angleJ);
var polygon = new GLPolygon(A, B, C, D);
polygon.Texture = Texture;
var textCoordLeft = (j) * (1.0 / Slices);
var textCoordRight = (j + 1) * (1.0 / Slices);
var textCoordTop = (i) * (1.0 / Stacks);
var textCoordBottom = (i + 1) * (1.0 / Stacks);
var coords = new List <GLTexCoord>();
coords.Add(new GLTexCoord(textCoordLeft, textCoordTop));
coords.Add(new GLTexCoord(textCoordRight, textCoordTop));
coords.Add(new GLTexCoord(textCoordRight, textCoordBottom));
coords.Add(new GLTexCoord(textCoordLeft, textCoordBottom));
polygon.SetPolygonTexCoords(coords);
Polygons.Add(polygon);
}
}
}
public void GenerateRingPolygon()
{
Ring = new GLObject();
GLTexture ringTexture = null;
if (RingTextureName != null)
{
ringTexture = GLTextureAdmin.GetTextureByName(RingTextureName);
}
var angleStep = 360.0 / (double)Slices;
var c = new GLPoint(0, 0, 0);
for (double i = 0; i <= 360; i += angleStep)
{
double ax = (Radius + 1) * Math.Cos(i * Math.PI / 180.0) + c.X;
double az = (Radius + 1) * Math.Sin(i * Math.PI / 180.0) + c.Z;
double bx = (Radius + 1 + RingSize) * Math.Cos(i * Math.PI / 180.0) + c.X;
double bz = (Radius + 1 + RingSize) * Math.Sin(i * Math.PI / 180.0) + c.Z;
double cx = (Radius + 1 + RingSize) * Math.Cos((i + angleStep) * Math.PI / 180.0) + c.X;
double cz = (Radius + 1 + RingSize) * Math.Sin((i + angleStep) * Math.PI / 180.0) + c.Z;
double dx = (Radius + 1) * Math.Cos((i + angleStep) * Math.PI / 180.0) + c.X;
double dz = (Radius + 1) * Math.Sin((i + angleStep) * Math.PI / 180.0) + c.Z;
var polygon = new GLPolygon();
polygon.FillColor = RingFillColor;
polygon.Texture = ringTexture;
polygon.Points.Add(new GLPoint(ax, c.Y, az));
polygon.Points.Add(new GLPoint(bx, c.Y, bz));
polygon.Points.Add(new GLPoint(cx, c.Y, cz));
polygon.Points.Add(new GLPoint(dx, c.Y, dz));
Ring.Polygons.Add(polygon);
}
}