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 Test4()
{
Console.WriteLine("Beginning Test4...");
// Time Values
DateTime[] timestamps = {
new DateTime(2004, 2, 1, 0, 0, 0),
new DateTime(2004, 2, 1, 2, 0, 0),
new DateTime(2004, 2, 1, 7, 0, 0),
new DateTime(2004, 2, 1, 14, 0, 0),
new DateTime(2004, 2, 1, 17, 0, 0),
new DateTime(2004, 2, 1, 19, 0, 0),
new DateTime(2004, 2, 1, 23, 0, 0),
new DateTime(2004, 2, 2, 0, 0, 0)
};
// Corresponding Data Values
double[] values = { 100, 250, 230, 370, 350, 300, 340, 350 };
LinearInterpolator linear = new LinearInterpolator(timestamps, values);
CubicSplineInterpolator spline = new CubicSplineInterpolator(timestamps, values);
// graph range
RrdGraphDef gDef = new RrdGraphDef(timestamps[0], timestamps[timestamps.Length - 1]);
// graph title, time and value axis labels
gDef.Title = "Plottable demonstration";
gDef.TimeAxisLabel = "time";
gDef.VerticalLabel = "water level [inches]";
// interpolated datasources
gDef.Datasource("linear", linear);
gDef.Datasource("spline", spline);
// splined plot will be an orange filled area
gDef.Area("spline", Color.Orange, "Spline interpolation");
// simply interpolated plot will be a red line
gDef.Line("linear", Color.Red, "Linear inteprolation@r");
// print average values for both interpolation methods
gDef.Gprint("spline", "AVERAGE", "Average spline value: @0 inches@r");
gDef.Gprint("linear", "AVERAGE", "Average linear value: @0 inches@r");
// create the graph...
RrdGraph graph = new RrdGraph(gDef);
// ...and save it somewhere
string filename = "test4.png";
graph.SaveAsPNG(filename, 300, 100);
Console.WriteLine("Test4 Complete.");
}
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 StressTest()
{
string RRD_PATH = "stress.rrd";
long RRD_START = 946710000L;
long RRD_STEP = 30;
string RRD_DATASOURCE_NAME = "T";
int RRD_DATASOURCE_COUNT = 6;
long TIME_START = 1060142010L;
long TIME_END = 1080013472L;
string PNG_PATH = "stress.png";
int PNG_WIDTH = 400;
int PNG_HEIGHT = 250;
//Stress test
DateTime testBegin = DateTime.UtcNow;
printLapTime("Beginning Stress Test at " + testBegin.ToString());
// create RRD database
printLapTime("Creating RRD definition");
RrdDef def = new RrdDef(RRD_PATH);
def.StartTime = RRD_START;
def.Step = RRD_STEP;
for(int i = 0; i < RRD_DATASOURCE_COUNT; i++)
{
def.AddDatasource(RRD_DATASOURCE_NAME + i, "GAUGE", 90, -60, 85);
}
def.AddArchive("LAST", 0.5, 1, 5760);
def.AddArchive("MIN", 0.5, 1, 5760);
def.AddArchive("MAX", 0.5, 1, 5760);
def.AddArchive("AVERAGE", 0.5, 5, 13824);
def.AddArchive("MIN", 0.5, 5, 13824);
def.AddArchive("MAX", 0.5, 5, 13824);
def.AddArchive("AVERAGE", 0.5, 60, 16704);
def.AddArchive("MIN", 0.5, 60, 16704);
def.AddArchive("MAX", 0.5, 60, 16704);
def.AddArchive("AVERAGE", 0.5, 1440, 50000);
def.AddArchive("MIN", 0.5, 1440, 50000);
def.AddArchive("MAX", 0.5, 1440, 50000);
printLapTime("Definition created, creating RRD file");
RrdDb rrd = new RrdDb(def);
printLapTime("RRD file created: " + RRD_PATH);
FileStream fs = File.OpenRead("stress-test.txt");
byte[] memBuffer = new byte[fs.Length];
fs.Read(memBuffer, 0, memBuffer.Length);
fs.Close();
StreamReader memoryReader = new StreamReader(new MemoryStream(memBuffer));
//StreamReader diskReader = File.OpenText("stress-test.txt");
//string allLines = diskReader.ReadToEnd();
//diskReader.Close();
//StringReader memoryReader = new StringReader(allLines);
//StreamReader memoryReader = File.OpenText("stress-test.txt");
printLapTime("Input data loaded into memory, processing data");
int count = 0;
DateTime updateStart = DateTime.UtcNow;
string line;
while ((line = memoryReader.ReadLine()) != null)
{
Sample sample = rrd.CreateSample();
try
{
sample.SetAndUpdate(line);
if(++count % 1000 == 0)
{
DateTime now = DateTime.UtcNow;
long speed = (long)(count * 1000.0 / (Util.TicksToMillis(now.Ticks) - Util.TicksToMillis(updateStart.Ticks)));
printLapTime(count + " samples stored, " + speed + " updates/sec");
}
}
catch(RrdException)
{
printLapTime("RRD ERROR: " + line);
}
}
memoryReader.Close();
rrd.Close();
printLapTime("FINISHED: " + count + " samples stored");
// GRAPH
printLapTime("Creating composite graph definition");
RrdGraphDef gdef = new RrdGraphDef(TIME_START, TIME_END);
gdef.Title = "Temperatures";
gdef.VerticalLabel = "Fahrenheit";
Color [] colors = {Color.Red, Color.Lime, Color.Blue, Color.Magenta,Color.Cyan, Color.Orange };
// datasources
for(int i = 0; i < RRD_DATASOURCE_COUNT; i++)
{
string name = RRD_DATASOURCE_NAME + i;
gdef.Datasource(name, RRD_PATH, name, "AVERAGE");
}
// lines
for(int i = 0; i < RRD_DATASOURCE_COUNT; i++)
{
string name = RRD_DATASOURCE_NAME + i;
gdef.Line(name, colors[i], name);
}
gdef.Comment("@c");
gdef.Comment("\nOriginal data provided by diy-zoning.sf.net@c");
printLapTime("Graph definition created");
RrdGraph g = new RrdGraph(gdef);
g.SaveAsPNG(PNG_PATH, PNG_WIDTH, PNG_HEIGHT);
printLapTime("Graph saved: " + PNG_PATH);
DateTime testEnd = DateTime.UtcNow;
printLapTime("Finished at " + testEnd.ToString());
Console.WriteLine("Total Time: " + testEnd.Subtract(testBegin).ToString());
}
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.");
}
/// <summary>
///
/// </summary>
/// <param name="graphDef"></param>
public RrdGraph( RrdGraphDef graphDef )
{
grapher = new Grapher(graphDef, this);
}
/// <summary>
///
/// </summary>
/// <param name="graphDef"></param>
public void SetGraphDef( RrdGraphDef graphDef )
{
img = null;
grapher = new Grapher( graphDef, this );
}
public void JonasTest2()
{
UInt32 start_time = 1370000000; // 31th may 2013, 11:33:20
UInt32 end_time = start_time + 300 * 300;
RrdDef rrdDef = new RrdDef("jonas.rrd");
rrdDef.StartTime = start_time;
rrdDef.AddDatasource("battery", "GAUGE", 300, 1.0, 5.0); // Five minutes
rrdDef.AddArchive("LAST", 0.5, 1, 576); //
rrdDef.AddArchive("MIN", 0.5, 1, 576); // 24 hours average, 2.5 minutes resolution
rrdDef.AddArchive("MAX", 0.5, 1, 576); // 24 hours average, 2.5 minutes resolution
rrdDef.AddArchive("AVERAGE", 0.5, 6, 672); // 7 days average, 15 min resolution
rrdDef.AddArchive("MIN", 0.5, 6, 672); // 7 days average, 15 min resolution
rrdDef.AddArchive("MAX", 0.5, 6, 672); // 7 days average, 15 min resolution
rrdDef.AddArchive("AVERAGE", 0.5, 24, 87600); // 10 year average, 1 hour resolution
rrdDef.AddArchive("MIN", 0.5, 24, 87600); // 10 year average, 1 hour resolution
rrdDef.AddArchive("MAX", 0.5, 24, 87600); // 10 year average, 1 hour resolution
RrdDb db = new RrdDb(rrdDef);
db.Close();
RrdDb rrd = new RrdDb("jonas.rrd");
Random rand = new Random();
//Sample s = rrd.CreateSample();
// update
for(long t = start_time + 300; t <= end_time; t += 300)
{
double r = (double)rand.Next(1, 6);
//s.SetAndUpdate(String.Format("{0}:{1}", t, r));
Sample sample = rrd.CreateSample(t);
sample.SetValue("battery", (double)r);
sample.Update();
Console.WriteLine(r);
}
FetchRequest fr = rrd.CreateFetchRequest("LAST", start_time, end_time - 300);
FetchData fd = fr.FetchData();
for (int i = 0; i < fd.RowCount; i++)
{
FetchPoint fp = fd.GetRow(i);
Console.WriteLine("{0}: {1}", fp.Time, fp.Values[0]);
}
rrd.Close();
// Create new graph for the last 12 hours
RrdGraphDef gdef = new RrdGraphDef(new DateTime(2013, 05, 31, 12, 00, 00), new DateTime(2013, 05, 31, 18, 59, 59));
gdef.Title = "Battery voltage";
gdef.VerticalLabel = "U (V)";
gdef.SetValueAxis(1.0, 1.0);
gdef.SetGridRange(1.000, 5.000, true);
gdef.Datasource("vbat", "jonas.rrd", "battery", "LAST");
//gdef.Datasource("vbat_avg", "jonas.rrd", "battery", "AVERAGE");
gdef.Datasource("vbat_trend", "vbat,900,TREND");
gdef.Line("vbat", System.Drawing.Color.Green, "Battery voltage", 1);
//gdef.Line("vbat_avg", System.Drawing.Color.Red, "Average over 15 min", 1);
gdef.Line("vbat_trend", System.Drawing.Color.Red, "Trend over 15 min", 1);
gdef.Gprint("vbat", "LAST", "Current: @2V@r");
gdef.Gprint("vbat", "AVERAGE", "Average: @2V@r");
gdef.Gprint("vbat", "MAX", "Max: @2V@r");
gdef.Gprint("vbat", "MIN", "Min: @2V@r");
RrdGraph graph = new RrdGraph(gdef);
graph.SaveAsPNG("battery2_2h.png", 700, 300);
}
internal Grapher( RrdGraphDef graphDef, RrdGraph rrdGraph )
{
this.graphDef = graphDef;
this.rrdGraph = rrdGraph;
// Set font dimension specifics
if ( graphDef.DefaultFont != null )
normal_font = graphDef.DefaultFont;
if ( graphDef.TitleFont != null )
title_font = graphDef.TitleFont;
normalFontColor = graphDef.DefaultFontColor;
nfont_height = (int) normal_font.GetHeight();
// MONO FIX: Font.GetHeight() always returns 0 on mono 1.0
if (nfont_height == 0) nfont_height = (int)normal_font.Size;
nfont_width = nfont_height / 2+1 ;
sf = StringFormat.GenericDefault;
sf.FormatFlags = StringFormatFlags.MeasureTrailingSpaces;
// Bold font is higher
tfont_height = (int) title_font.GetHeight();
// MONO FIX: Font.GetHeight() always returns 0 on mono 1.0
if (tfont_height == 0) tfont_height = (int)title_font.Size;
tfont_width = tfont_height / 2 +1;
// Create the shared valueformatter
valueFormat = new ValueFormatter( graphDef.BaseValue, graphDef.ScaleIndex );
// Set default graph stroke
defaultPen = new Pen(Color.Black);
dashPen = new Pen(Color.Black, 1);
defaultBrush = new SolidBrush(Color.White);
}