public byte[] MakeChart(ChartData cd, int Width, int Height)
{
//Initialize
ChartControl cc = new ChartControl();
cc.AddChartData(cd);
cc.Width = Width;
cc.Height = Height;
cc.BackColor = Color.White;
//Make Image
Image image = cc.GetImage();
//Save Image to tmp file
string tmp = Path.GetTempFileName();
image.Save(tmp, ImageFormat.Png);
//Read Image from disk and fill byte[]
byte[] b;
BinaryReader br;
using (Stream s = File.OpenRead(tmp))
{
br = new BinaryReader(s);
b = br.ReadBytes((int)s.Length);
br.Close();
}
//Delete tmp file
File.Delete(tmp);
//Cleanup image
image.Dispose();
return(b);
}
public string[] PlotXml(string xml)
{
//Set Properties
string Xml = xml;
string RelativePath = (string)Application["RelativePath"];
string AbsolutePath = (string)Application["PhysicalPath"];
if (!Directory.Exists((string)Application["PhysicalPath"]))
{
Directory.CreateDirectory((string)Application["PhysicalPath"]);
}
ArrayList sc = new ArrayList();
ArrayList absc = new ArrayList();
//Make images
ChartService cs = new ChartService();
ChartData[] cds = cs.GetFromXml(xml);
ChartControl cc;
ChartData cd;
int width;
int height;
Image image;
for (int i = 0; i < cds.Length; i++)
{
cd = cds[i];
width = XmlTranslator.Widths[i];
height = XmlTranslator.Heights[i];
cc = new ChartControl();
cc.AddChartData(cd);
cc.Width = width;
cc.Height = height;
cc.BackColor = Color.White;
image = cc.GetImage();
string filename = "/plot_" + DateTime.Now.Ticks + ".png";
string physPath = AbsolutePath + filename;
string relativePath = RelativePath + filename;
image.Save(physPath, ImageFormat.Png);
absc.Add(physPath);
sc.Add(relativePath);
}
string[] relPaths = (string[])sc.ToArray(typeof(string));
//Get AbsolutePaths
this.Session["LastImages"] = (string[])absc.ToArray(typeof(string));
if (relPaths != null)
{
//Add http:// + MachineName to filenames;
IPHostEntry ihe = Dns.GetHostByName(this.Server.MachineName);
string local = "http://" + ihe.HostName;
ArrayList al = new ArrayList();
foreach (string s in relPaths)
{
al.Add(local + s);
}
return((string[])al.ToArray(typeof(string)));
}
else
{
return(new string[] {});
}
}
public string MakeInnerHtmlChart(ChartData[] cds, int Width, int Height)
{
//Check that we have some data
if (cds == null)
{
return("An error occured, could not find any plots!");
}
try
{
//Get paths, set in global.cs
string RelativePath = (string)Application["RelativePath"] + "/";
string AbsolutePath = (string)Application["PhysicalPath"] + "/";
//Generate unique filename
string filename = DateTime.Now.Ticks.ToString();
//Get hostinfo
IPHostEntry ihe = Dns.GetHostByName(this.Server.MachineName);
//Initialize variables
string[] imgs = new string[cds.Length];
StringBuilder sr = new StringBuilder();
string[] datanames = new string[cds.Length];
string xmldata;
string tabdata;
ArrayList files = new ArrayList();
//Run through ChartData[] and create charts
for (int i = 0; i < cds.Length; i++)
{
//Initialize chart
ChartControl cc = new ChartControl();
cc.AddChartData(cds[i]);
cc.BackColor = Color.White;
//Check X and Y values
if (cds[i].X == null || cds[i].Y == null)
{
continue;
}
//Check y values
bool ok = false;
foreach (double[] d in cds[i].Y)
{
if (d != null)
{
ok = true;
}
}
if (!ok)
{
continue;
}
//Check if the current ChartData has Width and Height set
try
{
if (cds[i].Width != 0)
{
cc.Width = cds[i].Width;
}
else
{
cc.Width = Width;
}
if (cds[i].Height != 0)
{
cc.Height = cds[i].Height;
}
else
{
cc.Height = Height;
}
}
catch {}
//Create Image
Image img = cc.GetImage();
if (img == null)
{
continue;
}
//Save image to disk
img.Save(AbsolutePath + filename + "_" + i + ".png", ImageFormat.Png);
//Store relative path to image
imgs[i] = RelativePath + filename + "_" + i + ".png";
//Save ChartData as XML
try
{
xmldata = filename + "_" + i + ".xnc";
using (Stream s = File.OpenWrite(AbsolutePath + xmldata))
{
cds[i].ToXML(s);
}
}
catch
{
xmldata = null;
}
//Save ChartData as HTML
try
{
tabdata = filename + "_" + i + ".html";
using (Stream s = File.OpenWrite(AbsolutePath + tabdata))
{
cds[i].ToHtml(s);
}
}
catch
{
tabdata = null;
}
//Create HTML to return to client
sr.Append("<table cellpadding=0 cellspacing=2><tr><td >");
sr.Append("<img src='" + "http://" + ihe.HostName + imgs[i] + "'>\n");
if (xmldata != null)
{
sr.Append("<tr><td align=right><a href='http://" + ihe.HostName + RelativePath + xmldata + "'>Xml format</a> | ");
}
if (tabdata != null)
{
sr.Append("<a href='http://" + ihe.HostName + RelativePath + tabdata + "' target='htmldata'>Html format</a></table><br>");
}
//Files to be deleted at the end of session
files.Add(AbsolutePath + filename + "_" + i + ".png");
files.Add(AbsolutePath + xmldata);
files.Add(AbsolutePath + tabdata);
}
//Add to session end delete
AddToDelete((string[])files.ToArray(typeof(string)));
//Return HTML
return(sr.ToString());
}
catch (Exception e)
{
return("An unknown error occured. Please send the following message to the administrator:<br>" + e.Message + "<br>" + e.StackTrace +
"<br>" + cds.Length + ", " + Width + ", " + Height);
}
}
