private void InitializePoints(LowPolyMotion.GridConfig gridConfig, ref LowPolyMotion.MotionPoint[,] points)
{
LowPolyMotion.GridInfo gridInfo = gridConfig.getGridInfo();
for (int i = 0; i < gridInfo.c_x; i++)
{
for (int j = 0; j < gridInfo.c_y; j++)
{
points[i, j] = new LowPolyMotion.MotionPoint(rand.Next(LowPolyMotion.rangeN.min, LowPolyMotion.rangeN.max), 0, NewEndXYZ(gridConfig, i, j), NewEndXYZ(gridConfig, i, j));
}
}
}
private void timer_event(object sender, System.Timers.ElapsedEventArgs e)
{
// 上锁 (c# System.Timers.Timer 是多线程执行的, 若不上锁则一旦绘制时间超过了时钟周期将出现写冲突)
mutex.WaitOne();
LowPolyMotion.GridInfo gridInfo = grid.getGridInfo();
// 更新点坐标
for (int i = 0; i < gridInfo.c_x; i++)
{
for (int j = 0; j < gridInfo.c_y; j++)
{
if (points[i, j].motionData.NextStep())
{
points[i, j].motionData.begin_xyz = points[i, j].motionData.target_xyz;
points[i, j].motionData.target_xyz = NewEndXYZ(grid, i, j);
points[i, j].motionData.i = 0;
points[i, j].motionData.n = rand.Next(LowPolyMotion.rangeN.min, LowPolyMotion.rangeN.max);
}
}
}
// 更新光源坐标
if (light.motionData.NextStep())
{
light.motionData.begin_xyz = light.motionData.target_xyz;
light.motionData.target_xyz = NewEndXYZ(boardWidth, boardHeight, LowPolyMotion.rangeZ.light_min, LowPolyMotion.rangeZ.light_max);
light.motionData.i = 0;
light.motionData.n = rand.Next(LowPolyMotion.rangeN.min, LowPolyMotion.rangeN.max);
}
// 更新重心坐标
CalOutCenter(grid, ref rects, points);
// 重新渲染颜色
ColorRendering(grid, ref rects, points);
Draw(grid, rects, points, checkBox1.Checked);
// 解锁
mutex.ReleaseMutex();
}
private void CalOutCenter(LowPolyMotion.GridConfig gridConfig, ref LowPolyMotion.Rect[,] rects, LowPolyMotion.MotionPoint[,] points) // 重心坐标计算
{
LowPolyMotion.GridInfo gridInfo = gridConfig.getGridInfo();
for (int i = 0; i < gridInfo.c_x - 1; i++)
{
for (int j = 0; j < gridInfo.c_y - 1; j++)
{
if (rects[i, j].T_Diagonal == 0) // 0.\ 1./
{
rects[i, j].outcentreXYZ[0] = new LowPolyMotion.xyz(LowPolyMotion.Calculate_3D.Cal_3DGetFocus(points[i, j].motionData.current_xyz, points[i, j + 1].motionData.current_xyz, points[i + 1, j + 1].motionData.current_xyz));
rects[i, j].outcentreXYZ[1] = new LowPolyMotion.xyz(LowPolyMotion.Calculate_3D.Cal_3DGetFocus(points[i, j].motionData.current_xyz, points[i + 1, j].motionData.current_xyz, points[i + 1, j + 1].motionData.current_xyz));
}
else
{
rects[i, j].outcentreXYZ[0] = new LowPolyMotion.xyz(LowPolyMotion.Calculate_3D.Cal_3DGetFocus(points[i, j].motionData.current_xyz, points[i + 1, j].motionData.current_xyz, points[i, j + 1].motionData.current_xyz));
rects[i, j].outcentreXYZ[1] = new LowPolyMotion.xyz(LowPolyMotion.Calculate_3D.Cal_3DGetFocus(points[i + 1, j + 1].motionData.current_xyz, points[i + 1, j].motionData.current_xyz, points[i, j + 1].motionData.current_xyz));
}
}
}
}
private void InitializeLowPolyConfig(LowPolyMotion.GridConfig gridConfig, int boardWidth, int boardHeight, int pointCount)
{
if (pointCount <= 1)
{
pointCount = 2;
}
// Initialize Grid
gridConfig.initGridConfig(boardWidth, boardHeight, pointCount);
// Initialize Rects
LowPolyMotion.GridInfo gridInfo = gridConfig.getGridInfo();
gridInfo.c_x = grid.getCrossCellCount();
gridInfo.c_y = grid.getDirectionCellCount();
gridInfo.c_w = grid.getCrossCellWidth();
gridInfo.c_h = grid.getDirectionCellHeight();
rects = new LowPolyMotion.Rect[gridInfo.c_x, gridInfo.c_y];
for (int i = 0; i < gridInfo.c_x; i++)
{
for (int j = 0; j < gridInfo.c_y; j++)
{
rects[i, j] = new LowPolyMotion.Rect();
rects[i, j].xyz = new LowPolyMotion.xyz(gridInfo.c_w * i, gridInfo.c_h * j, 0);
rects[i, j].w = gridInfo.c_w;
rects[i, j].h = gridInfo.c_h;
rects[i, j].T_Diagonal = rand.Next(0, 2); // [0,2)
}
}
// Initialize Points
points = new LowPolyMotion.MotionPoint[gridInfo.c_x, gridInfo.c_y];
InitializePoints(gridConfig, ref points);
CalOutCenter(gridConfig, ref rects, points);
// Initialize Light
light = new LowPolyMotion.MotionPoint(rand.Next(LowPolyMotion.rangeN.min, LowPolyMotion.rangeN.max), 0, new LowPolyMotion.xyz(boardWidth / 2, boardHeight / 2, rand.Next(LowPolyMotion.rangeZ.min, LowPolyMotion.rangeZ.max)), NewEndXYZ(boardWidth, boardHeight, LowPolyMotion.rangeZ.light_min, LowPolyMotion.rangeZ.light_max));
// Color Rendering
ColorRendering(gridConfig, ref rects, points);
}
private void ColorRendering(LowPolyMotion.GridConfig gridConfig, ref LowPolyMotion.Rect[,] rects, LowPolyMotion.MotionPoint[,] points)
{
LowPolyMotion.GridInfo gridInfo = gridConfig.getGridInfo();
LowPolyMotion.RGB[] paintRGB = new LowPolyMotion.RGB[2];
LowPolyMotion.Vector[] v1 = new LowPolyMotion.Vector[2]; // 面的法向量
LowPolyMotion.Vector[] v2 = new LowPolyMotion.Vector[2]; // 重心到光源的向量
float[] cosin = new float[2]; // v1与v2夹角的余弦值
for (int i = 0; i < gridInfo.c_x - 1; i++)
{
for (int j = 0; j < gridInfo.c_y - 1; j++)
{
// 计算 v1
if (rects[i, j].T_Diagonal == 0) // 0.\ 1./
{
v1[0] = LowPolyMotion.Calculate_3D.Cal_3DNormalVector(points[i, j].motionData.current_xyz, points[i, j + 1].motionData.current_xyz, points[i + 1, j + 1].motionData.current_xyz);
v1[1] = LowPolyMotion.Calculate_3D.Cal_3DNormalVector(points[i, j].motionData.current_xyz, points[i + 1, j].motionData.current_xyz, points[i + 1, j + 1].motionData.current_xyz);
}
else
{
v1[0] = LowPolyMotion.Calculate_3D.Cal_3DNormalVector(points[i, j].motionData.current_xyz, points[i + 1, j].motionData.current_xyz, points[i, j + 1].motionData.current_xyz);
v1[1] = LowPolyMotion.Calculate_3D.Cal_3DNormalVector(points[i + 1, j + 1].motionData.current_xyz, points[i + 1, j].motionData.current_xyz, points[i, j + 1].motionData.current_xyz);
}
v1[0] = LowPolyMotion.Calculate_3D.Turn2EffectiveNV(v1[0]);
v1[1] = LowPolyMotion.Calculate_3D.Turn2EffectiveNV(v1[1]);
// 计算 v2
v2[0] = LowPolyMotion.Calculate_3D.Cal_3DGetVector(rects[i, j].outcentreXYZ[0], light.motionData.current_xyz);
v2[1] = LowPolyMotion.Calculate_3D.Cal_3DGetVector(rects[i, j].outcentreXYZ[1], light.motionData.current_xyz);
// 计算 cosine
cosin[0] = LowPolyMotion.Calculate_3D.Cal_3Dcos(v1[0], v2[0]);
cosin[1] = LowPolyMotion.Calculate_3D.Cal_3Dcos(v1[1], v2[1]);
// 计算着色
paintRGB[0] = LowPolyMotion.PaintRGB.RGB_Mid;
paintRGB[1] = LowPolyMotion.PaintRGB.RGB_Mid;
/// 左边面
if (cosin[0] > 0) // 向光
{
paintRGB[0] += (LowPolyMotion.PaintRGB.RGB_Light - LowPolyMotion.PaintRGB.RGB_Mid) * Math.Abs(cosin[0]);
}
else if (cosin[0] < 0) // 背光
{
paintRGB[0] -= (LowPolyMotion.PaintRGB.RGB_Mid - LowPolyMotion.PaintRGB.RGB_Dark) * Math.Abs(cosin[0]);
}
/// 右边面
if (cosin[1] > 0) // 向光
{
paintRGB[1] += (LowPolyMotion.PaintRGB.RGB_Light - LowPolyMotion.PaintRGB.RGB_Mid) * Math.Abs(cosin[1]);
}
else if (cosin[1] < 0) // 背光
{
paintRGB[1] -= (LowPolyMotion.PaintRGB.RGB_Mid - LowPolyMotion.PaintRGB.RGB_Dark) * Math.Abs(cosin[1]);
}
// rect上色
rects[i, j].color[0] = paintRGB[0];
rects[i, j].color[1] = paintRGB[1];
}
}
}
private void Draw(LowPolyMotion.GridConfig gridConfig, LowPolyMotion.Rect[,] rects, LowPolyMotion.MotionPoint[,] points, Boolean showExtrInf = false)
{
// 在内存中建立虚拟画布
Bitmap bitmap = new Bitmap(this.Size.Width, this.Size.Height);
// 获取内存画布的 Graphics 引用
Graphics g = Graphics.FromImage(bitmap);
g.Clear(Color.White);
// 获取网格基础信息
LowPolyMotion.GridInfo gridInfo = gridConfig.getGridInfo();
// 创建画笔
Pen myPen = new Pen(Color.Black, 2);
// 绘图
if (showExtrInf)
{
/// 画网格线
myPen.Color = Color.Tan;
for (int i = 0; i < gridInfo.c_x + 1; i++)
{
g.DrawLine(myPen, gridInfo.c_w * i, 0, gridInfo.c_w * i, gridInfo.c_h * gridInfo.c_y);
}
for (int j = 0; j < gridInfo.c_y + 1; j++)
{
g.DrawLine(myPen, 0, gridInfo.c_h * j, gridInfo.c_w * gridInfo.c_x, gridInfo.c_h * j);
}
/// 画点
myPen.Color = Color.Black;
for (int i = 0; i < gridInfo.c_x; i++)
{
for (int j = 0; j < gridInfo.c_y; j++)
{
g.DrawRectangle(myPen, points[i, j].motionData.current_xyz.x - 1, points[i, j].motionData.current_xyz.y - 1, 2, 2);
}
}
/// 连线
myPen.Color = Color.Black;
LowPolyMotion.MotionPoint[] ro_p = new LowPolyMotion.MotionPoint[4];
for (int i = 0; i < gridInfo.c_x - 1; i++)
{
for (int j = 0; j < gridInfo.c_y - 1; j++)
{
// 被连线的网格顶点
ro_p[0] = points[i, j];
ro_p[1] = points[i + 1, j];
ro_p[2] = points[i, j + 1];
ro_p[3] = points[i + 1, j + 1];
// 四边形连线
g.DrawLine(myPen, ro_p[0].motionData.current_xyz.x, ro_p[0].motionData.current_xyz.y, ro_p[1].motionData.current_xyz.x, ro_p[1].motionData.current_xyz.y);
g.DrawLine(myPen, ro_p[0].motionData.current_xyz.x, ro_p[0].motionData.current_xyz.y, ro_p[2].motionData.current_xyz.x, ro_p[2].motionData.current_xyz.y);
g.DrawLine(myPen, ro_p[1].motionData.current_xyz.x, ro_p[1].motionData.current_xyz.y, ro_p[3].motionData.current_xyz.x, ro_p[3].motionData.current_xyz.y);
g.DrawLine(myPen, ro_p[2].motionData.current_xyz.x, ro_p[2].motionData.current_xyz.y, ro_p[3].motionData.current_xyz.x, ro_p[3].motionData.current_xyz.y);
// 对角线
if (rects[i, j].T_Diagonal == 0) // 0.\ 1./
{
g.DrawLine(myPen, ro_p[0].motionData.current_xyz.x, ro_p[0].motionData.current_xyz.y, ro_p[3].motionData.current_xyz.x, ro_p[3].motionData.current_xyz.y);
}
else
{
g.DrawLine(myPen, ro_p[1].motionData.current_xyz.x, ro_p[1].motionData.current_xyz.y, ro_p[2].motionData.current_xyz.x, ro_p[2].motionData.current_xyz.y);
}
}
}
}
// 颜色渲染
SolidBrush myBrush = new SolidBrush(Color.BlueViolet);
Point[] myPoints = new Point[3];
for (int i = 0; i < gridInfo.c_x - 1; i++)
{
for (int j = 0; j < gridInfo.c_y - 1; j++)
{
if (rects[i, j].T_Diagonal == 0) // 0.\ 1./
{
// 左边面
myPoints[0].X = (int)points[i, j].motionData.current_xyz.x; myPoints[0].Y = (int)points[i, j].motionData.current_xyz.y;
myPoints[1].X = (int)points[i, j + 1].motionData.current_xyz.x; myPoints[1].Y = (int)points[i, j + 1].motionData.current_xyz.y;
myPoints[2].X = (int)points[i + 1, j + 1].motionData.current_xyz.x; myPoints[2].Y = (int)points[i + 1, j + 1].motionData.current_xyz.y;
myBrush.Color = Color.FromArgb(rects[i, j].color[0].R, rects[i, j].color[0].G, rects[i, j].color[0].B);
g.FillPolygon(myBrush, myPoints);
// 右边面
myPoints[1].X = (int)points[i + 1, j].motionData.current_xyz.x; myPoints[1].Y = (int)points[i + 1, j].motionData.current_xyz.y;
myBrush.Color = Color.FromArgb(rects[i, j].color[1].R, rects[i, j].color[1].G, rects[i, j].color[1].B);
g.FillPolygon(myBrush, myPoints);
}
else
{
// 左边面
myPoints[0].X = (int)points[i, j].motionData.current_xyz.x; myPoints[0].Y = (int)points[i, j].motionData.current_xyz.y;
myPoints[1].X = (int)points[i + 1, j].motionData.current_xyz.x; myPoints[1].Y = (int)points[i + 1, j].motionData.current_xyz.y;
myPoints[2].X = (int)points[i, j + 1].motionData.current_xyz.x; myPoints[2].Y = (int)points[i, j + 1].motionData.current_xyz.y;
myBrush.Color = Color.FromArgb(rects[i, j].color[0].R, rects[i, j].color[0].G, rects[i, j].color[0].B);
g.FillPolygon(myBrush, myPoints);
// 右边面
myPoints[0].X = (int)points[i + 1, j + 1].motionData.current_xyz.x; myPoints[0].Y = (int)points[i + 1, j + 1].motionData.current_xyz.y;
myBrush.Color = Color.FromArgb(rects[i, j].color[1].R, rects[i, j].color[1].G, rects[i, j].color[1].B);
g.FillPolygon(myBrush, myPoints);
}
}
}
if (showExtrInf)
{
// 画重心
myPen.Color = Color.DarkBlue;
for (int i = 0; i < gridInfo.c_x - 1; i++)
{
for (int j = 0; j < gridInfo.c_y - 1; j++)
{
myPen.Color = Color.DarkBlue;
g.DrawRectangle(myPen, rects[i, j].outcentreXYZ[0].x - 2, rects[i, j].outcentreXYZ[0].y - 2, 4, 4);
g.DrawRectangle(myPen, rects[i, j].outcentreXYZ[1].x - 2, rects[i, j].outcentreXYZ[1].y - 2, 4, 4);
myPen.Color = Color.FromArgb(50, 23, 23, 23);
g.DrawLine(myPen, rects[i, j].outcentreXYZ[0].x, rects[i, j].outcentreXYZ[0].y, light.motionData.current_xyz.x, light.motionData.current_xyz.y);
g.DrawLine(myPen, rects[i, j].outcentreXYZ[1].x, rects[i, j].outcentreXYZ[1].y, light.motionData.current_xyz.x, light.motionData.current_xyz.y);
}
}
// 画点光源
myPen.Color = Color.Red;
g.DrawRectangle(myPen, light.motionData.current_xyz.x - 2, light.motionData.current_xyz.y - 2, 4, 4);
}
// 将内存画布绘制到屏幕上
Graphics myGraphics = this.CreateGraphics();
myGraphics.DrawImage(bitmap, 0, 0);
// 释放资源
bitmap.Dispose();
g.Dispose();
myPen.Dispose();
myGraphics.Dispose();
}