/// <summary>
/// Plot to a gif file ('set terminal gif').
/// </summary>
/// <param name="gp"></param>
/// <param name="xRes">Horizontal resolution in pixels.</param>
/// <param name="yRes">Vertical resolution in pixels.</param>
static public Image PlotGIF(this Gnuplot gp, int xRes = 800, int yRes = 600)
{
// set terminal
gp.Terminal = string.Format("pngcairo size {0},{1}", xRes, yRes);
// set output file
//string OutfileName = null;
//while (OutfileName == null || File.Exists(OutfileName)) {
// OutfileName = Path.GetTempFileName() + ".gif";
//}
string OutfileName = Path.GetTempFileName();
gp.OutputFile = OutfileName;
// call gnuplot
int exCode = gp.RunAndExit(); // run & close gnuplot
if (exCode != 0)
{
Console.WriteLine("Gnuplot-internal error: exit code " + exCode);
return(null);
}
// return image
var fi = (new FileInfo(OutfileName));
if (fi.Exists && fi.Length > 0)
{
byte[] IOMmem = File.ReadAllBytes(OutfileName);
File.Delete(OutfileName);
return(Image.FromStream(new MemoryStream(IOMmem)));
//return Image.FromFile(OutfileName); // it seems, the image object does not work anymore when the file is deleted
}
else
{
Console.WriteLine("Gnuplot output file empty or non-existent.");
return(null);
}
}
/// <summary>
/// Plot to a gif file ('set terminal gif').
/// </summary>
/// <param name="gp"></param>
/// <param name="xRes">Horizontal resolution in pixels.</param>
/// <param name="yRes">Vertical resolution in pixels.</param>
static public Image PlotGIF(this Gnuplot gp, int xRes = 800, int yRes = 600)
{
// set terminal
gp.Terminal = string.Format("pngcairo size {0},{1}", xRes, yRes);
// set output file
//string OutfileName = null;
//while (OutfileName == null || File.Exists(OutfileName)) {
// OutfileName = Path.GetTempFileName() + ".gif";
//}
string OutfileName = Path.GetTempFileName();
gp.OutputFile = OutfileName;
// call gnuplot
int exCode = gp.RunAndExit(); // run & close gnuplot
if (exCode != 0)
{
Console.WriteLine("Gnuplot-internal error: exit code " + exCode);
return(null);
}
// return image
var fi = (new FileInfo(OutfileName));
if (fi.Exists && fi.Length > 0)
{
return(Image.FromFile(OutfileName));
}
else
{
Console.WriteLine("Gnuplot output file empty or non-existent.");
return(null);
}
}
/// <summary>
/// Plot to a gif file ('set terminal gif').
/// </summary>
/// <param name="xSize">Horizontal size in centimeters, ignored if <paramref name="xSize"/> or <paramref name="ySize"/> is negative.</param>
/// <param name="ySize">Vertical size in centimeters.</param>
/// <param name="Options">
/// Options for gnuplot cairolatex terminal
/// </param>
/// <param name="gp"></param>
/// <returns>
/// A memory-image of gnuplot cairolatex output.
/// </returns>
static public CairolatexContainer PlotCairolatex(this Gnuplot gp,
//string Options = " pdf input noheader blacktext nobackground noenhanced fontscale 0.6 ",
string Options = " pdf ",
double xSize = 14, double ySize = 10.5)
{
// return object
var clc = new CairolatexContainer();
// set terminal
if (xSize >= 0 && ySize >= 0)
{
gp.Terminal = string.Format("cairolatex {0} size {1}cm,{2}cm", Options != null ? Options : " ", xSize.ToStringDot(), ySize.ToStringDot());
}
else
{
gp.Terminal = string.Format("cairolatex {0} size {1}cm,{2}cm", Options != null ? Options : " ");
}
// set output file
string baseName = Path.GetTempFileName();
baseName = Path.Combine(Path.GetDirectoryName(baseName), Path.GetFileNameWithoutExtension(baseName));
string TexOutfileName = baseName + ".tex";
gp.OutputFile = TexOutfileName;
string GraphisOut = Path.Combine(Path.GetDirectoryName(TexOutfileName), baseName);
// gnuplot script
{
string[] tmpFiles = gp.TempFilesPath.ToArray();
clc.DataFiles = new string[tmpFiles.Length];
clc.DataFileNames = new string[tmpFiles.Length];
string AllCommands = gp.GetAllCommandsString();
for (int i = 0; i < tmpFiles.Length; i++)
{
string tmpFile = tmpFiles[i];
string scriptName = tmpFile.Replace(Path.DirectorySeparatorChar, '/');
string newName = baseName + "_data_" + i + ".csv";
AllCommands = AllCommands.Replace(scriptName, newName);
clc.DataFiles[i] = File.ReadAllText(tmpFile);
clc.DataFileNames[i] = newName;
}
AllCommands = AllCommands.Replace(TexOutfileName, Path.GetFileName(TexOutfileName));
AllCommands = AllCommands + System.Environment.NewLine + "exit" + System.Environment.NewLine;
clc.GnuplotScript = AllCommands;
}
// call gnuplot
{
int exCode = gp.RunAndExit(); // run & close gnuplot
if (exCode != 0)
{
Console.WriteLine("Gnuplot-internal error: exit code " + exCode);
return(null);
}
}
// return graphics
{
string TexContent = File.ReadAllText(TexOutfileName);
string GraphisOut_ext = null;
if (File.Exists(GraphisOut + ".eps"))
{
GraphisOut_ext = ".eps";
}
else if (File.Exists(GraphisOut + ".pdf"))
{
GraphisOut_ext = ".pdf";
}
else
{
throw new FileNotFoundException(string.Format("Unable to find either eps or pdf file: {0}.pdf or {0}.eps.", GraphisOut));
}
byte[] PdfOrEps = File.ReadAllBytes(GraphisOut + GraphisOut_ext);
TexContent = TexContent.Replace(GraphisOut, Path.GetFileNameWithoutExtension(baseName)); // hack replacement of absolute path.
clc.LatexCode = TexContent;
clc.GraphicsData = PdfOrEps;
clc.GraphicsFilename = Path.GetFileName(GraphisOut) + GraphisOut_ext;
}
return(clc);
}
