private void pic_grid_Paint(object sender, PaintEventArgs e)
{
if (!_gridInit)
{
LinkPoint();
return;
}
DrawF draw = new DrawF(79.0f, 5.0f, 5.0f);
for (int col = 0; col < 5; col++)
{
for (int row = 0; row < 5; row++)
{
PointF2D point = _points[col, row];
if (row < 4)
{
PointF2D rightPoint = _points[col, row + 1];
draw.drawLine(e.Graphics, point.X, point.Y, rightPoint.X, rightPoint.Y);
}
if (col < 4)
{
PointF2D bottomPoint = _points[col + 1, row];
draw.drawLine(e.Graphics, point.X, point.Y, bottomPoint.X, bottomPoint.Y);
}
}
}
_gridInit = false;
}
public PointF2D getBlockPoint(float x, float y)
{
PointF2D point = new PointF2D();
point.X = (_center.X / _offset + x) * _offset;
point.Y = (_center.Y / _offset - y) * _offset;
return(point);
}
// drawGradient畫一個梯度
// point: 座標
// U: x向量
// V: y向量
// maxSum: 最大向量和
public void drawGradient(Graphics graphics
, PointF2D point
, float U, float V, float maxSum)
{
// 鄰邊 = U = x
// 對邊 = V = y
float absU = Math.Abs(U);
float absV = Math.Abs(V);
// atan取弧度(tan = 對邊 / 鄰邊
float radian = absU != 0 ? (float)Math.Atan(absV / absU) : (float)(Math.PI * 0.5);
Console.WriteLine(radian / Math.PI * 180);
// cos = 鄰邊 / 斜邊, sin = 對邊 / 斜邊
float xCos = U != 0.0f ? (float)Math.Cos(radian) : 1.0f;
float ySin = V != 0.0f ? (float)Math.Sin(radian) : 0.0f;
float xDirection = U < 0.0f ? -1.0f : U > 0 ? 1.0f : 0.0f;
float yDirection = V < 0.0f ? 1.0f : V > 0 ? -1.0f : 0.0f;
// 計算顯示長度比例
float max = absU > absV ? absU : absV;
float maxLen = (max / maxSum * _offset);
for (float index = 0; index < maxLen; index += 0.01f)
{
// 取得斜邊
// 取得x + 方向和y + 方向(對邊)
float bevel = index / xCos;
float x = index * xDirection;
float y = ySin * bevel * yDirection;
if (Math.Abs(y) > maxLen)
{
return;
}
drawPointLine(graphics, Brushes.Black, point.X + x, point.Y + y);
}
}
private PointF2D[,] GetInitPoints()
{
PointF2D[,] points = new PointF2D[5, 5];
int fixWidth = _fileImage.Width >> 2;
int fixHeight = _fileImage.Height >> 2;
//DrawF draw = new DrawF(79.0f, 5.0f, 5.0f);
//draw.drawBlock(e.Graphics, 4.0f, 4.0f);
pic_grid.Controls.Clear();
for (int col = 0; col < 5; col++)
{
float fixCol = fixHeight * col + 10.0f;
for (int row = 0; row < 5; row++)
{
float fixRow = fixWidth * row + 10.0f;
points[col, row] = new PointF2D(fixRow, fixCol);
PictureBox pointPic = new PictureBox();
pointPic.Location = new Point((int)fixRow - 5, (int)fixCol - 5);
pointPic.Size = new Size(13, 13);
pointPic.Image = new Bitmap(Environment.CurrentDirectory + @"\red.png");
//pointPic.Image = new Bitmap( @"D:\VisualStudio\VisualStudioProject\IVCLibrary\x64\Debug\red.png");
pointPic.Name = row + "," + col;
pointPic.SizeMode = PictureBoxSizeMode.Zoom;
pointPic.Parent = pic_grid;
pic_grid.Controls.Add(pointPic);
pointPic.MouseMove += new MouseEventHandler(point_pic_MouseMove);
pointPic.MouseDown += new MouseEventHandler(point_pic_MouseDown);
pointPic.MouseUp += new MouseEventHandler(point_pic_MouseUp);
//draw.drawPoint(e.Graphics, Brushes.Red, fixRow, fixCol);
//draw.drawImage(e.Graphics, image, fixRow, fixCol);
}
}
return(points);
}
private void LinkPoint()
{
DrawF draw = new DrawF(79.0f, 5.0f, 5.0f);
BufferedGraphicsContext currentContext = BufferedGraphicsManager.Current;
BufferedGraphics bufferGraphics = currentContext.Allocate(pic_grid.CreateGraphics(), pic_grid.DisplayRectangle);
_gridImage = new Bitmap(_fileImage.Width, _fileImage.Height);
Graphics graphics = bufferGraphics.Graphics;
Graphics graphicsBMP = Graphics.FromImage(_gridImage);
graphics.Clear(pic_grid.BackColor);
graphicsBMP.FillRectangle(Brushes.White, 0, 0, _fileImage.Width, _fileImage.Height);
for (int col = 0; col < 5; col++)
{
for (int row = 0; row < 5; row++)
{
PointF2D point = _points[col, row];
float x1 = point.X - 10 == _fileImage.Width ? point.X - 11 : point.X - 10;
float y1 = point.Y - 10 == _fileImage.Height ? point.Y - 11 : point.Y - 10;
if (row < 4)
{
PointF2D rightPoint = _points[col, row + 1];
float x2 = rightPoint.X - 10 == _fileImage.Width ? rightPoint.X - 11 : rightPoint.X - 10;
float y2 = rightPoint.Y - 10 == _fileImage.Height ? rightPoint.Y - 11 : rightPoint.Y - 10;
draw.drawLine(graphics, point.X, point.Y, rightPoint.X, rightPoint.Y);
draw.drawLine(graphicsBMP, x1, y1, x2, y2, 3);
}
if (col < 4)
{
PointF2D bottomPoint = _points[col + 1, row];
float x2 = bottomPoint.X - 10 == _fileImage.Width ? bottomPoint.X - 11 : bottomPoint.X - 10;
float y2 = bottomPoint.Y - 10 == _fileImage.Height ? bottomPoint.Y - 11 : bottomPoint.Y - 10;
draw.drawLine(graphics, point.X, point.Y, bottomPoint.X, bottomPoint.Y);
draw.drawLine(graphicsBMP, x1, y1, x2, y2, 3);
}
}
}
if (ch_timely.Checked)
{
pic_result.Image = _lib.PerspectiveTransform8bit(_grayImage, _points, _transType);
}
//int[,] graph = new int[pic_grid.Height, pic_grid.Width];
//int mark = 1;
//List<int> links = new List<int>();
//links.Add(0);
//for (int row = 1; row < bmpPic.Height - 1; row++)
//{
// for (int col = 1; col < bmpPic.Width - 1; col++)
// {
// List<int> link = new List<int>();
// if (bmpPic.GetPixel(col, row).R != 255)
// {
// continue;
// }
// if (graph[row - 1, col - 1] != 0)
// {
// link.Add(graph[row - 1, col - 1]);
// }
// if (graph[row - 1, col] != 0)
// {
// link.Add(graph[row - 1, col]);
// }
// if (graph[row - 1, col + 1] != 0)
// {
// link.Add(graph[row - 1, col + 1]);
// }
// if (graph[row, col - 1] != 0)
// {
// link.Add(graph[row, col - 1]);
// }
// if (link.Count == 0)
// {
// links.Add(mark);
// graph[row, col] = mark++;
// }
// else
// {
// link.Sort();
// int minLink = links[link[0]];
// for (int index = 0; index < link.Count; index++)
// {
// if (minLink < links[link[index]])
// {
// links[link[index]] = minLink;
// }
// else if (minLink > links[link[index]])
// {
// links[link[0]] = links[link[index]];
// }
// }
// graph[row, col] = minLink;
// }
// }
//}
//for (int index = 1; index < links.Count(); index++)
//{
// int saveValue = links[index];
// int saveValueIndex = index;
// while (saveValue != saveValueIndex)
// {
// saveValue = links[links[saveValueIndex]];
// saveValueIndex = links[saveValueIndex];
// }
// links[index] = saveValue;
//}
//HashSet<int> companyTeams = new HashSet<int>();
//for (int row = 1; row < bmpPic.Height - 1; row++)
//{
// for (int col = 1; col < bmpPic.Width - 1; col++)
// {
// if (bmpPic.GetPixel(col, row).R != 255)
// {
// continue;
// }
// graph[row, col] = links[graph[row, col]];
// companyTeams.Add(graph[row, col]);
// }
//}
//Color[] colors = new Color[companyTeams.Count + 1];
//Dictionary<int, int> norml = new Dictionary<int, int>();
//for (int index = 0; index < companyTeams.Count + 1; index++)
//{
// colors[index] = GetColor(index);
//}
//norml[0] = 0;
//int offset = 1;
//foreach (int data in companyTeams)
//{
// norml[data] = offset;
// offset++;
//}
//for (int row = 0; row < pic_grid.Height; row++)
//{
// for (int col = 0; col < pic_grid.Width; col++)
// {
// //bmpPic.SetPixel(col, row, colors[norml[graph[row, col]]]);
// if (bmpPic.GetPixel(col, row).R != 0)
// {
// continue;
// }
// }
//}
//_gridImage.Save(@"D:/test.bmp");
bufferGraphics.Render(pic_grid.CreateGraphics());
bufferGraphics.Dispose();
}
public DrawF(float offset, float x, float y)
{
_center = new PointF2D(x * offset, y * offset);
_offset = offset;
}
public DrawF(float offset)
{
_center = new PointF2D(5.0f * offset, 5.0f * offset);
_offset = offset;
}