private static void createVectorGraphPNG(string rrdPath, string pngPath, string ds, DateTime start, DateTime end, string vertLabel, double lower = 0, double upper = 0)
{
RrdGraphDef graphDef = new RrdGraphDef();
graphDef.SetTimePeriod(getUnixTimeStamp(start), getUnixTimeStamp(end));
graphDef.VerticalLabel = vertLabel;
if (lower != upper)
{
graphDef.SetGridRange(lower, upper, true);
}
string dsx = ds + ".X";
string dsy = ds + ".Y";
string dsz = ds + ".Z";
graphDef.Datasource(dsx, rrdPath, dsx, "AVERAGE");
graphDef.Datasource(dsy, rrdPath, dsy, "AVERAGE");
graphDef.Datasource(dsz, rrdPath, dsz, "AVERAGE");
graphDef.Line(dsx, Color.Blue, dsx, 2);
graphDef.Line(dsy, Color.Green, dsy, 2);
graphDef.Line(dsz, Color.Red, dsz, 2);
RrdGraph graph = new RrdGraph(graphDef);
graph.SaveAsPNG(pngPath, 800, 600);
}
public void Test3()
{
long start = Util.Time, end = start + 300 * 300;
string rrdFile = "test3.rrd";
string pngFile = "test3.png";
Console.WriteLine("Beginning Test3...");
RrdDef rrdDef = new RrdDef(rrdFile, start - 1, 300);
rrdDef.AddDatasource("a", "GAUGE", 600, Double.NaN, Double.NaN);
rrdDef.AddArchive("AVERAGE", 0.5, 1, 300);
rrdDef.AddArchive("MIN", 0.5, 12, 300);
rrdDef.AddArchive("MAX", 0.5, 12, 300);
RrdDb rrdDb = new RrdDb(rrdDef);
// update
for(long t = start; t < end; t += 300)
{
Sample sample = rrdDb.CreateSample(t);
sample.SetValue("a", Math.Sin(t / 3000.0) * 50 + 50);
sample.Update();
}
rrdDb.Close();
// graph
RrdGraphDef gDef = new RrdGraphDef();
gDef.SetTimePeriod(start, start + 86400);
gDef.Title = "RRDTool's MINMAX.pl demo";
gDef.TimeAxisLabel = "time";
gDef.Datasource("a", rrdFile, "a", "AVERAGE");
gDef.Datasource("b", rrdFile, "a", "MIN");
gDef.Datasource("c", rrdFile, "a", "MAX");
gDef.Area("a", Color.LightBlue, "real");
gDef.Line("b", Color.Blue, "min");
gDef.Line("c", Color.Lime, "max");
RrdGraph graph = new RrdGraph(gDef);
graph.SaveAsPNG(pngFile, 450, 0);
Console.WriteLine("Test3 Complete.");
}
public void Test2()
{
Console.WriteLine("Beginning Test2...");
RrdDef rrdDef = new RrdDef("test2.rrd");
rrdDef.StartTime = 920804400L;
rrdDef.AddDatasource("speed", "COUNTER", 600, Double.NaN, Double.NaN);
rrdDef.AddArchive("AVERAGE", 0.5, 1, 24);
rrdDef.AddArchive("AVERAGE", 0.5, 6, 10);
RrdDb rrdDb = new RrdDb(rrdDef);
rrdDb.Close();
rrdDb = new RrdDb("test2.rrd");
Sample sample = rrdDb.CreateSample();
sample.SetAndUpdate("920804700:12345");
sample.SetAndUpdate("920805000:12357");
sample.SetAndUpdate("920805300:12363");
sample.SetAndUpdate("920805600:12363");
sample.SetAndUpdate("920805900:12363");
sample.SetAndUpdate("920806200:12373");
sample.SetAndUpdate("920806500:12383");
sample.SetAndUpdate("920806800:12393");
sample.SetAndUpdate("920807100:12399");
sample.SetAndUpdate("920807400:12405");
sample.SetAndUpdate("920807700:12411");
sample.SetAndUpdate("920808000:12415");
sample.SetAndUpdate("920808300:12420");
sample.SetAndUpdate("920808600:12422");
sample.SetAndUpdate("920808900:12423");
rrdDb.Close();
RrdGraphDef graphDef = new RrdGraphDef();
graphDef.SetTimePeriod(920804400L, 920808000L);
graphDef.Datasource("myspeed", "test2.rrd", "speed", "AVERAGE");
graphDef.Datasource("realspeed", "myspeed,1000,*");
graphDef.Line("realspeed", Color.Red, "speed", 2);
RrdGraph graph = new RrdGraph(graphDef);
graph.SaveAsPNG("test2a.png", 400, 100);
graphDef = new RrdGraphDef();
graphDef.SetTimePeriod(920804400L, 920808000L);
graphDef.VerticalLabel = "km/h";
graphDef.Overlay = "Sunset.jpg";
graphDef.Datasource("myspeed", "test2.rrd", "speed", "AVERAGE");
graphDef.Datasource("kmh", "myspeed,3600,*");
graphDef.Datasource("fast", "kmh,100,GT,kmh,0,IF");
graphDef.Datasource("good", "kmh,100,GT,0,kmh,IF");
graphDef.Area("good", Color.Lime, "Good speed");
graphDef.Area("fast", Color.Red, "Too fast");
graphDef.Hrule(100, Color.Blue, "Maximum allowed");
graph = new RrdGraph(graphDef);
graph.SaveAsPNG("test2b.png", 400, 100);
Console.WriteLine("Test2 Complete.");
}
public void Test1()
{
Console.WriteLine("Beginning Test1...");
RrdDef rrdDef = new RrdDef("test1.rrd");
rrdDef.StartTime = 978300900L;
rrdDef.AddDatasource("a", "COUNTER", 600, Double.NaN, Double.NaN);
rrdDef.AddDatasource("b", "GAUGE", 600, Double.NaN, Double.NaN);
rrdDef.AddDatasource("c", "DERIVE", 600, Double.NaN, Double.NaN);
rrdDef.AddDatasource("d", "ABSOLUTE", 600, Double.NaN, Double.NaN);
rrdDef.AddArchive("AVERAGE", 0.5, 1, 10);
RrdDb rrdDb = new RrdDb(rrdDef);
Sample sample = rrdDb.CreateSample();
sample.SetAndUpdate("978301200:300:1:600:300");
sample.SetAndUpdate("978301500:600:3:1200:600");
sample.SetAndUpdate("978301800:900:5:1800:900");
sample.SetAndUpdate("978302100:1200:3:2400:1200");
sample.SetAndUpdate("978302400:1500:1:2400:1500");
sample.SetAndUpdate("978302700:1800:2:1800:1800");
sample.SetAndUpdate("978303000:2100:4:0:2100");
sample.SetAndUpdate("978303300:2400:6:600:2400");
sample.SetAndUpdate("978303600:2700:4:600:2700");
sample.SetAndUpdate("978303900:3000:2:1200:3000");
rrdDb.Close();
RrdGraphDef graphDef = new RrdGraphDef();
graphDef.SetTimePeriod(978300600L, 978304200L);
graphDef.Title = "This is a cool title";
graphDef.VerticalLabel = "Vertical Label";
graphDef.Datasource("linea", "test1.rrd", "a", "AVERAGE");
graphDef.Datasource("lineb", "test1.rrd", "b", "AVERAGE");
graphDef.Datasource("linec", "test1.rrd", "c", "AVERAGE");
graphDef.Datasource("lined", "test1.rrd", "d", "AVERAGE");
graphDef.Line("linea", Color.Red, "Line A", 3);
graphDef.Line("lineb", Color.Lime, "Line B", 3);
graphDef.Line("linec", Color.Blue, "Line C", 3);
graphDef.Line("lined", Color.Cyan, "Line D", 3);
RrdGraph graph = new RrdGraph(graphDef);
graph.SaveAsPNG("test1.png", 400, 400);
Console.WriteLine("Test1 Complete.");
}