【实例简介】绘制站场简图
【实例截图】
【核心代码】 private void pictureBox2_Click(object sender, EventArgs e)
{
if (this.getCurrentShapes().Count > 0)
{
ArrayList list = new ArrayList();
string dateHead1 = “insert into Date”;
string dateHead2 = “(type,p1,p2,p3)values(“;
string dateQuotation = “‘”;
string dateDot1 = “,”;
string dateDot2 = “)”;
foreach (BaseShape shape in this.getCurrentShapes())
{
string type = shape.GetType().ToString();
if (type.Equals(“CAD.ArcShape”))
{
list.Add(dateHead1);
list.Add(dateHead2);
list.Add(dateQuotation);
list.Add(type);
list.Add(dateQuotation);
list.Add(dateDot1);
list.Add(dateQuotation);
list.Add(shape.getP1());
list.Add(dateQuotation);
list.Add(dateDot1);
list.Add(dateQuotation);
list.Add(shape.getP2());
list.Add(dateQuotation);
list.Add(dateDot1);
list.Add(dateQuotation);
list.Add(((ArcShape)shape).getP3());
list.Add(dateQuotation);
list.Add(dateDot2);
}
else
{
list.Add(dateHead1);
list.Add(dateHead2);
list.Add(dateQuotation);
list.Add(type);
list.Add(dateQuotation);
list.Add(dateDot1);
list.Add(dateQuotation);
list.Add(shape.getP1());
list.Add(dateQuotation);
list.Add(dateDot1);
list.Add(dateQuotation);
list.Add(shape.getP2());
list.Add(dateQuotation);
list.Add(dateDot1);
list.Add(dateQuotation);
list.Add(dateQuotation);
list.Add(dateDot2);
}
}
// 创建文件。如果文件存在则覆盖
// 创建写入流
if (saveFileDialog1.ShowDialog() == DialogResult.OK)
{
StreamWriter wr = new StreamWriter(saveFileDialog1.FileName, true);
//FileStream fs = File.Open(@”d:内容.sql”, FileMode.Create);
//StreamWriter wr = new StreamWriter(fs, System.Text.Encoding.UTF8);
// 将ArrayList中的每个项逐一写入文件
for (int i = 0; i < list.Count; i )
{
wr.WriteLine(list[i]);
}
// 关闭写入流
wr.Flush();
wr.Close();
// 关闭文件
//fs.Close();
}
}
else
{
MessageBox.Show(“当前界面没有图形！”);
}
}
private void pictureBox2_Click_1(object sender, EventArgs e)
{
if (this.getCurrentShapes().Count > 0)
{
saveFileDialog3.Filter = “Jpg 图片|*.jpg|Bmp 图片|*.bmp|Gif 图片|*.gif|Png 图片|*.png|Wmf 图片|*.wmf”;
saveFileDialog3.FileName = System.DateTime.Now.ToString(“yyyyMMddHHmmss”) “-“; ;//设置默认文件名
if (saveFileDialog3.ShowDialog() == DialogResult.OK)
{
this.pictureBox1.Image = new Bitmap(this.pictureBox1.Width, this.pictureBox1.Height);
Graphics g = Graphics.FromImage(this.pictureBox1.Image);
Graphics.FromImage(this.pictureBox1.Image).Clear(Color.White);//消除底图的黑色
for (int i = 0; i < currentShapes.Count; i )
{
string Type = ((BaseShape)currentShapes[i]).GetType().ToString();
switch (Type)
{
case “CAD.LineShape”:
g.DrawLine(new Pen(((BaseShape)currentShapes[i]).penColor, (float)((((BaseShape)currentShapes[i]).penwidth) * 1.7)),
((BaseShape)currentShapes[i]).getP1(), ((BaseShape)currentShapes[i]).getP2());
Pen p = new Pen(Color.White, (((BaseShape)currentShapes[i]).penwidth));
p.DashStyle = System.Drawing.Drawing2D.DashStyle.Custom; //自定义样式
p.DashPattern = new float[] { 7, 5 };
g.DrawLine(p, ((BaseShape)currentShapes[i]).getP1(), ((BaseShape)currentShapes[i]).getP2());
break;
case “CAD.RectangleShape”:
g.DrawRectangle(new Pen(((BaseShape)currentShapes[i]).penColor, ((BaseShape)currentShapes[i]).penwidth), ((BaseShape)currentShapes[i]).getP1().X, ((BaseShape)currentShapes[i]).getP1().Y, (((BaseShape)currentShapes[i]).getP2().X – ((BaseShape)currentShapes[i]).getP1().X), (((BaseShape)currentShapes[i]).getP2().Y – ((BaseShape)currentShapes[i]).getP1().Y));
g.DrawRectangle(new Pen(((BaseShape)currentShapes[i]).penColor, ((BaseShape)currentShapes[i]).penwidth), ((BaseShape)currentShapes[i]).getP1().X, ((BaseShape)currentShapes[i]).getP2().Y, (((BaseShape)currentShapes[i]).getP2().X – ((BaseShape)currentShapes[i]).getP1().X), (((BaseShape)currentShapes[i]).getP1().Y – ((BaseShape)currentShapes[i]).getP2().Y));
g.DrawRectangle(new Pen(((BaseShape)currentShapes[i]).penColor, ((BaseShape)currentShapes[i]).penwidth), ((BaseShape)currentShapes[i]).getP2().X, ((BaseShape)currentShapes[i]).getP2().Y, (((BaseShape)currentShapes[i]).getP1().X – ((BaseShape)currentShapes[i]).getP2().X), (((BaseShape)currentShapes[i]).getP1().Y – ((BaseShape)currentShapes[i]).getP2().Y));
g.DrawRectangle(new Pen(((BaseShape)currentShapes[i]).penColor, ((BaseShape)currentShapes[i]).penwidth), ((BaseShape)currentShapes[i]).getP2().X, ((BaseShape)currentShapes[i]).getP1().Y, (((BaseShape)currentShapes[i]).getP1().X – ((BaseShape)currentShapes[i]).getP2().X), (((BaseShape)currentShapes[i]).getP2().Y – ((BaseShape)currentShapes[i]).getP1().Y));
break;
case “CAD.EllipseShape”:
g.DrawEllipse(new Pen(((BaseShape)currentShapes[i]).penColor, ((BaseShape)currentShapes[i]).penwidth), ((BaseShape)currentShapes[i]).getP1().X, ((BaseShape)currentShapes[i]).getP1().Y, (((BaseShape)currentShapes[i]).getP2().X – ((BaseShape)currentShapes[i]).getP1().X), (((BaseShape)currentShapes[i]).getP2().Y – ((BaseShape)currentShapes[i]).getP1().Y));
break;
case “CAD.CircleShape”:
int r = (int)Math.Pow(Math.Pow(((BaseShape)currentShapes[i]).getP2().X – ((BaseShape)currentShapes[i]).getP1().X, 2) Math.Pow(((BaseShape)currentShapes[i]).getP2().Y – ((BaseShape)currentShapes[i]).getP1().Y, 2), 0.5);
g.DrawEllipse(new Pen(((BaseShape)currentShapes[i]).penColor, ((BaseShape)currentShapes[i]).penwidth), ((BaseShape)currentShapes[i]).getP1().X – r, ((BaseShape)currentShapes[i]).getP1().Y – r, 2 * r, 2 * r);
break;
case “CAD.ArcShape”:
DrawArcFromThreePoint(((ArcShape)currentShapes[i]).getP1().X,
((ArcShape)currentShapes[i]).getP1().Y,
((ArcShape)currentShapes[i]).getP2().X,
((ArcShape)currentShapes[i]).getP2().Y,
((ArcShape)currentShapes[i]).getP3().X,
((ArcShape)currentShapes[i]).getP3().Y);
g.DrawArc(new Pen(((BaseShape)currentShapes[i]).penColor, ((BaseShape)currentShapes[i]).penwidth),
(int)Arcx, (int)Arcy, (int)ArcRadius1, (int)ArcRadius2,
(int)Arcangle1, (int)Arcangle2);
break;
case “CAD.AssistShape”:
Point p1 = ((AssistShape)currentShapes[i]).getP1();
Point p2 = ((AssistShape)currentShapes[i]).getP2();
Point p3 = ((AssistShape)currentShapes[i]).getP3();
Pen p_assist1 = new Pen(Color.Green, 0);
p_assist1.DashStyle = System.Drawing.Drawing2D.DashStyle.Custom; //自定义样式
p_assist1.DashPattern = new float[] { 2, 1 };
g.DrawLine(p_assist1, p1.X, p1.Y, p1.X, p3.Y);
g.DrawLine(p_assist1, p2.X, p2.Y, p2.X, p3.Y);
g.DrawLine(p_assist1, p1.X, p3.Y, p2.X, p3.Y);
break;
case “CAD.AssistalignmentShape”:
Point p4 = ((AssistalignmentShape)currentShapes[i]).getP1();
Point p5 = ((AssistalignmentShape)currentShapes[i]).getP2();
Point p6 = ((AssistalignmentShape)currentShapes[i]).getP3();
Pen p_assist2 = new Pen(Color.Green, 0);
p_assist2.DashStyle = System.Drawing.Drawing2D.DashStyle.Custom; //自定义样式
p_assist2.DashPattern = new float[] { 2, 1 };
g.DrawLine(p_assist2, p4.X, p4.Y, p6.X, p4.Y);
g.DrawLine(p_assist2, p5.X, p5.Y, p6.X, p5.Y);
g.DrawLine(p_assist2, p6.X, p4.Y, p6.X, p5.Y);
break;
}
((BaseShape)currentShapes[i]).superDraw(g);//变幻的时候
}
this.pictureBox1.Image.Clone();//这句话是关键 //释放此 System.Drawing.Image 使用的所有资源。
pictureBox1.Image.Save(saveFileDialog3.FileName, System.Drawing.Imaging.ImageFormat.Jpeg);
MessageBox.Show(this, “图片保存成功！”, “信息提示”);
}
}
else
{
MessageBox.Show(“当前界面没有图形！”);
}
}
private void pictureBox1_Click(object sender, EventArgs e)
{
}
private void toolStripLabel1_Click(object sender, EventArgs e)
{
}
private void toolStripMenuItem1_Click(object sender, EventArgs e)
{
}
private void domainUpDown1_SelectedItemChanged(object sender, EventArgs e)
{
}
private void txt_currenttool_TextChanged(object sender, EventArgs e)
{
}
private void pictureBox3_Click(object sender, EventArgs e)
{
fontDialog1.ShowColor = true;//这行代码一定要出现在fontDialog1.ShowDialog()之前。
fontDialog1.ShowDialog();
foreach (BaseShape shape in currentShapes)
{
if (shape.GetType().ToString().Equals(“CAD.AssistShape”))
{
((AssistShape)shape).getTxtAssist().Font = fontDialog1.Font;
((AssistShape)shape).getTxtAssist().ForeColor = fontDialog1.Color;//设置字体颜色
}
}
}
private void button2_Click(object sender, EventArgs e)
{
bool isSave = true;
SaveFileDialog saveImageDialog = new SaveFileDialog();
saveImageDialog.Title = “Capture screen image savedialog”;
saveImageDialog.Filter = @”jpeg|*.jpg|bmp|*.bmp|gif|*.gif”;
if (saveImageDialog.ShowDialog() == DialogResult.OK)
{
string fileName = saveImageDialog.FileName.ToString();
if (fileName != “” && fileName != null)
{
string fileExtName = fileName.Substring(fileName.LastIndexOf(“.”) 1).ToString();
System.Drawing.Imaging.ImageFormat imgformat = null;
if (fileExtName != “”)
{
switch (fileExtName)
{
case “jpg”:
imgformat = System.Drawing.Imaging.ImageFormat.Jpeg;
break;
case “bmp”:
imgformat = System.Drawing.Imaging.ImageFormat.Bmp;
break;
case “gif”:
imgformat = System.Drawing.Imaging.ImageFormat.gif” />
break;
default:
MessageBox.Show(“只能存取为: jpg,bmp,gif 格式”);
isSave = false;
break;
}
}
//默认保存为JPG格式
if (imgformat == null)
{
imgformat = System.Drawing.Imaging.ImageFormat.Jpeg;
}
if (isSave)
{
try
{
pictureBox1.Image.Save(fileName, imgformat);
//RealtimeVideoForm.image.Save(fileName, imgformat);
MessageBox.Show(“图片成功保存!~~”);
}
catch
{
MessageBox.Show(“保存失败!”);
}
}
}
}
}
}
}
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