//内積
public int InnerProduct(GSColor color1, GSColor color2)
{
int R1 = color1.R - R;
int G1 = color1.G - G;
int B1 = color1.B - B;
int R2 = color2.R - R;
int G2 = color2.G - G;
int B2 = color2.B - B;
return(R1 * R2 + G1 * G2 + B1 * B2);
}
public static List <GSColor> Gradation(GSColor begin, GSColor end, int Length)
{
List <GSColor> colorList = new List <GSColor>();
if (Length == 0)
{
return(colorList);
}
double scaleR = (double)(end.R - begin.R) / Length;
double scaleG = (double)(end.G - begin.G) / Length;
double scaleB = (double)(end.B - begin.B) / Length;
for (int i = 0; i < Length; i++)
{
colorList.Add(new GSColor((byte)(begin.R + scaleR * i), (byte)(begin.G + scaleG * i), (byte)(begin.B + scaleB * i)));
}
return(colorList);
}
//影
public double Projection(GSColor end, GSColor color)
{
return(InnerProduct(end, color) / Distance(end));
}
public double Distance(GSColor color)
{
return(Math.Sqrt(Math.Pow(R - color.R, 2) + Math.Pow(G - color.G, 2) + Math.Pow(B - color.B, 2)));
}
public Pixel(Position pos, GSColor color)
{
this.Pos = pos;
this.Color = color;
}