/// <summary>
/// Compare two triangles and return true if equal
/// </summary>
/// <param name="tri">the other triangles to compare with</param>
/// <returns>true if the two triangles equals, false otherwise</returns>
public bool Equals(Triangle2DF tri)
{
return
((V0.Equals(tri.V0) || V0.Equals(tri.V1) || V0.Equals(tri.V2)) &&
(V1.Equals(tri.V0) || V1.Equals(tri.V1) || V1.Equals(tri.V2)) &&
(V2.Equals(tri.V0) || V2.Equals(tri.V1) || V2.Equals(tri.V2)));
}
public override bool Equals(object obj)
{
if (obj is Edge other)
{
return((V1.Equals(other.V1) || V1.Equals(other.V2)) &&
(V2.Equals(other.V1) || V2.Equals(other.V2)) &&
Weight.Equals(other.Weight));
}
return(false);
}
/// <summary>
/// returns a value from 0 - 255 based on how the given lightsource will light up the face
/// 0 means its facing the entirely wrong way
/// 127 means its perpendicular to the light
/// 255 means its directly facing the light.
/// </summary>
/// <param name="lightSrc"></param>
/// <returns></returns>
/*public int Reflectivity(Light lightSrc)
* {
* Point3D normal = Normal;
* Point3D lightVector = (this.Center - lightSrc.Location);
* float dotProduct; // cosine of the angle between the normal and the lightsource (from -1 to 1)
* dotProduct = (normal * lightVector) / (lightVector.Magnitude * normal.Magnitude);
*
* float temp = (1 + dotProduct) / 2; //max(2/2) = 1, min = (0/2) = 0
* return (int)(temp * 255);
* }
*
* public float getLightValue(List<Light> lightSrc)
* {
* float lightVal = 0;
* foreach (Light l in lightSrc)
* {
* int reflect = Reflectivity(l);
*
* if (reflect >= 128) // 128 -> 255 means face normal is pointing towards lightsource in some way.
* {
* float maxDistance = 1000 * l.Intensity;
* float light_triangle_dist = (this.Center - l.Location).Magnitude;
* //lightVal += l.Intensity * (reflect - 127) / (light_triangle_dist * light_triangle_dist);
* //lightVal += 255 - (l.Intensity * (255 - reflect) * (1 / Math.Max(light_triangle_dist, 1)));
* lightVal += (float)Math.Max(0, l.Intensity * ((reflect - 127) * 2) * -((light_triangle_dist - maxDistance) / maxDistance));
* lightVal = Math.Min(255, lightVal); // don't go over 255!
*
* }
* }
* return Math.Min(255,lightVal+15);
* }*/
public bool HasVertex(Point3D v)
{
return(V1.Equals(v) || V2.Equals(v) || V3.Equals(v));
}
public bool Equals(Triangle3D other)
{
return(V1.Equals(other.V1) && V2.Equals(other.V2) && V3.Equals(other.V3));
}