gdi+ 折线图

女爷i 2022-04-01 10:38 251阅读 0赞

panle 为画图的容器，  
data 每个项为数据输入格式为 1,2,3,4  
time 格式为 "10:20,10:30,10:40 "  
name 格式为 "项目1,项目2";

![None.gif][]   
![None.gif][] static  public  void  StaDrawHdImage(Panel ImagePanle,ArrayList data, string  time, string  names)  
![ExpandedBlockStart.gif][]![ContractedBlock.gif][] ![dot.gif][] \{  
![InBlock.gif][]  
![InBlock.gif][] Imagewidth = ImagePanle.Width;  
![InBlock.gif][] ImageHeight = ImagePanle.Height;  
![InBlock.gif][]  
![InBlock.gif][] Bitmap bm =new Bitmap(ImagePanle.Width,ImagePanle .Height);  
![InBlock.gif][] Graphics g=Graphics.FromImage(bm);  
![InBlock.gif][] g.SmoothingMode = SmoothingMode.AntiAlias;  
![InBlock.gif][] Rectangle toptile =new Rectangle(new Point(0, 0), new Size(Imagewidth, ImageHeight));  
![InBlock.gif][] Brush brtop =new SolidBrush(Color.FromArgb(59, 110, 165));  
![InBlock.gif][] g.FillRectangle(brtop, toptile);  
![InBlock.gif][] Brush NameBrush=new SolidBrush (Color .FromArgb (255,255,255));  
![InBlock.gif][] g.DrawString("烟尘黑度监视分析系统", new Font("宋体",16), NameBrush, ImagePanle.Width /2\-130, 10);  
![InBlock.gif][]  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]/\*\*//\*画箭头\*/  
![InBlock.gif][]  
![InBlock.gif][] g.DrawLine(new Pen (NameBrush), new Point(localLeft \-1, LocalTop \-10), new Point(localLeft \-1, ImagePanle.Height \-30));  
![InBlock.gif][] g.DrawLine(new Pen(NameBrush), new Point(localLeft \-1, ImageHeight \- LocalButtom), new Point(Imagewidth \- localRight\+10, ImageHeight \- LocalButtom));  
![InBlock.gif][] g.DrawLine(new Pen(NameBrush), new Point(localLeft\-1, LocalTop\-10), new Point(localLeft\-1\+2, LocalTop\-10\+2));  
![InBlock.gif][] g.DrawLine(new Pen(NameBrush), new Point(localLeft\-1, LocalTop\-10), new Point(localLeft\-1\-2, LocalTop\-10\+2));  
![InBlock.gif][] g.DrawLine (new Pen (NameBrush),new Point(Imagewidth\-localRight\+10,ImageHeight \-LocalButtom),new Point (Imagewidth\-localRight\+10\-2,ImageHeight\-LocalButtom\-2));  
![InBlock.gif][] g.DrawLine(new Pen(NameBrush), new Point(Imagewidth \- localRight \+10, ImageHeight \- LocalButtom), new Point(Imagewidth \- localRight \+10\-2, ImageHeight \- LocalButtom \+2));  
![InBlock.gif][]  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]/\*\*//\*画垂直刻度\*/  
![InBlock.gif][]for (int i =0; i <5; i\++)  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]![dot.gif][]\{  
![InBlock.gif][]int kd=(ImageHeight\-LocalTop\-LocalButtom) /5;  
![InBlock.gif][] g.DrawLine(new Pen(NameBrush), new Point(localLeft\-1, LocalTop\+kd \* i ), new Point(localLeft\-4, LocalTop\+kd \* i ) );  
![InBlock.gif][] g.DrawString (Convert.ToString (5\-i).ToString (),new Font("宋体",9),NameBrush,new Point (localLeft\-10, LocalTop\+kd \* i\-4));  
![InBlock.gif][]  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][]  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]/\*\*//\*画水平刻度\*/  
![InBlock.gif][]  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]string\[\] temptimes = time.Split(newchar\[\] ![dot.gif][]\{ ',' \});  
![InBlock.gif][]for (int j =0; j <temptimes.Length; j\++)  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]![dot.gif][]\{  
![InBlock.gif][]  
![InBlock.gif][]float kds = (float)(Imagewidth \- localLeft \- localRight) / (float)temptimes.Length; ;  
![InBlock.gif][]  
![InBlock.gif][]if (j < temptimes.Length)  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]![dot.gif][]\{  
![InBlock.gif][] g.DrawLine(new Pen(NameBrush), new PointF((float)(localLeft \-1\+ kds \* j), ImageHeight \- LocalButtom), new PointF((float)(localLeft \-1\+ kds \* j), ImageHeight \- LocalButtom \+4));  
![InBlock.gif][] g.DrawString(temptimes\[j\], new Font("宋体", 9), NameBrush, new PointF((float)(localLeft \-1\+ kds \* j \-10), ImageHeight \- LocalButtom \+8));  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][] Rectangle ra=new Rectangle (new Point (localLeft,LocalTop),new Size(Imagewidth\-localLeft\-localRight,ImageHeight\-LocalButtom \-LocalTop));  
![InBlock.gif][] Brush br =new LinearGradientBrush(ra,Color .FromArgb (0,0,0),Color.FromArgb(255,255,255), LinearGradientMode.Vertical);  
![InBlock.gif][]  
![InBlock.gif][] g.FillRectangle(br, ra);  
![InBlock.gif][]  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]/\*\*//\*画线\*/  
![InBlock.gif][]int kdy=(ImageHeight\-LocalTop\-LocalButtom) /5;  
![InBlock.gif][]float kdx = (float)(Imagewidth \- localLeft \- localRight) / (float)temptimes.Length;  
![InBlock.gif][]  
![InBlock.gif][]// PointF\[\] poins=new PointF\[data.Length\];  
![InBlock.gif][]for (int i =0; i < data.Count; i\++)  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]![dot.gif][]\{  
![InBlock.gif][] Brush databrush =new SolidBrush(colordata \[i\]);  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]string\[\] temp =data\[i\].ToString ().Split(newchar\[\] ![dot.gif][]\{ ',' \});  
![InBlock.gif][] PointF\[\] poins =new PointF\[temp.Length\];  
![InBlock.gif][]for (int j=0;j<temp.Length ;j\++)  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]![dot.gif][]\{  
![InBlock.gif][]  
![InBlock.gif][] poins\[ j\] =new PointF((float)(localLeft \+ kdx \* j), LocalTop \+ kdy \* (5\-int.Parse (temp\[j\])));  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][] g.DrawLines(new Pen(databrush), poins);  
![InBlock.gif][]  
![InBlock.gif][]  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]/\*\*//\* poins\[0\] = new PointF((float)(localLeft + kdx \* 0), LocalTop + kdy \* (5 - 2));  
![InBlock.gif][] poins\[1\] = new PointF((float)(localLeft + kdx \* 1), LocalTop + kdy \* (5 - 1));  
![InBlock.gif][] poins\[2\] = new PointF((float)(localLeft + kdx \* 2), LocalTop+ kdy \* (5 - 3));  
![ExpandedSubBlockEnd.gif][]\*/  
![InBlock.gif][]  
![InBlock.gif][]  
![InBlock.gif][] Brush b=new SolidBrush(Color.Black );  
![InBlock.gif][]  
![InBlock.gif][] g.FillRectangle(NameBrush,new Rectangle (new Point(Imagewidth\-200,ImageHeight\-200),new Size (170,170)));  
![InBlock.gif][]if (names !=null)  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]![dot.gif][]\{  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]string\[\] tempName = names.Split(newchar\[\] ![dot.gif][]\{ ',' \});  
![InBlock.gif][]for (int l =0; l < tempName.Length; l\++)  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][]![dot.gif][]\{  
![InBlock.gif][] g.FillRectangle(new SolidBrush(colordata\[l\]), new Rectangle(new Point(Imagewidth \-200\+20, ImageHeight \-200\+20\* l \+10\* (l \+1)), new Size(20, 20)));  
![InBlock.gif][] g.DrawString(tempName\[l\].ToString(), new Font("宋体", 9), b, new PointF(Imagewidth \-200\+60, ImageHeight \-200\+20\* l \+10\* (l \+1)));  
![InBlock.gif][]  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][]  
![InBlock.gif][] ImagePanle.BackgroundImage = bm;  
![InBlock.gif][]  
![InBlock.gif][]  
![ExpandedBlockEnd.gif][] \}

![zxabc.jpg][]

[None.gif]: /images/20220401/137c47a178c44be1a993b31d3c8f1a7a.png
[ExpandedBlockStart.gif]: https://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif
[ContractedBlock.gif]: https://www.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gif
[dot.gif]: /images/20220401/7508764c18dd4c63a033799dfc20e764.png
[InBlock.gif]: /images/20220401/db3208baf0a545059f5234ec79c2b50c.png
[ExpandedSubBlockStart.gif]: https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif
[ContractedSubBlock.gif]: /images/20220401/50eb516da16b4e96afedab4477dbefb6.png
[ExpandedSubBlockEnd.gif]: /images/20220401/60fa8f31d04844d399785c9daeb6f9e4.png
[ExpandedBlockEnd.gif]: /images/20220401/6b3cd2136ea540e7b2235b495973fbd5.png
[zxabc.jpg]: /images/20220401/a17e47e19ae349ab8f7a5b8189513b37.png