Gala wrote at 2014-06-06 16:17:

objo wrote at 2014-06-06 20:51:

Gala wrote at 2014-06-06 21:21:

   var arrow = new ArrowAnnotation();
   arrow .Text = info;
   arrow .StartPoint =  new DataPoint(DateTimeAxis.ToDouble(currentTime), value- value/ 100000);
   arrow .EndPoint =  new DataPoint(DateTimeAxis.ToDouble(currentTime),value);
   PlotModel.Annotations.Add(tradeToDisplay);

objo wrote at 2014-06-06 21:51:

Gala wrote at 2014-06-09 17:28:

Nirraven wrote at 2013-10-02 11:58:

objo wrote at 2013-10-02 12:25:

Nirraven wrote at 2013-10-02 13:58:

jpnavarini wrote at 2012-03-20 21:34:

I would like to create a bar chart, in order to estimate a Histogram. I don't need to plot the fitted histogram, only the bars, as shown on the following figure from WikiPedia: http://en.wikipedia.org/wiki/File:Black_cherry_tree_histogram.svg

I would like to have bar a chart in a linear vs. linear axes configuration. Then I would have in the bottom axis the values and in the left axis the frequency of occurence of the values in the interval defined by the bar basis.

Is is posible to do this kind of plot with OxyPlot? How it can be done?

objo wrote at 2012-03-30 13:32:

The BarSeries requires a CategoryAxis.

Try the RectangleBarSeries which should support linear axes, but this means you have to set the minimum and maximum X/Y of each rectangle (bar).

ishlasko wrote at 2013-08-22 18:27:

objo wrote at 2013-08-22 21:04:

ishlasko wrote at 2013-08-23 14:52:

ishlasko wrote at 2013-09-05 23:15:

objo wrote at 2013-09-06 06:47:

sharethl wrote at 2012-08-19 02:40:

Hi

Could any one tell me what is the best way to save plot? including annotations and series.

One way I saw an example is :

create Property class for each annotation, then serialize a collection of property classes.

when read the saved file, base on property classes to create plot with annotations. 

objo wrote at 2012-08-21 13:04:

It should be possible to serialize the PlotModel, but I am not sure if I would recommend it... The data structure may change... I think the client application should be responsible for this, using its own model. I'm interested in hearing other opinions on this!

sharethl wrote at 2012-08-21 16:06:

I did test to serialize PlotModel, 

Some properties could not be serialized, like Plot, OxyThichness(need add serialized attribute.)

So will user property class to make a copy of annotation and save them. easier.

Thanks

objo wrote at 2012-08-23 15:53:

I added http://oxyplot.codeplex.com/workitem/9986, it should not be difficult to fix this!

endorphing wrote at 2013-01-25 18:51:

I noticed that in the MouseDown example, if I enable curve smoothing, I can add new points but get an exception when trying to move a points around. I think the problem is with the e.HitTestResult.Index not being returned correctly (comments below). Is there an alternate way to get the index of the nearest point?

// Add a line series
            var s1 = new LineSeries("LineSeries1")
            {
                Color = OxyColors.SkyBlue,
                MarkerType = MarkerType.Circle,
                MarkerSize = 6,
                MarkerStroke = OxyColors.White,
                MarkerFill = OxyColors.SkyBlue,
                MarkerStrokeThickness = 1.5,
                Smooth = true //enable smoothing
            };
            s1.Points.Add(new DataPoint(0, 10));
            s1.Points.Add(new DataPoint(10, 40));
            s1.Points.Add(new DataPoint(40, 20));
            s1.Points.Add(new DataPoint(60, 30));
            model.Series.Add(s1);

            int indexOfPointToMove = -1;

            // Subscribe to the mouse down event on the line series
            s1.MouseDown += (s, e) =>
            {
                // only handle the left mouse button (right button can still be used to pan)
                if (e.ChangedButton == OxyMouseButton.Left)
                {
                    int indexOfNearestPoint = (int)Math.Round(e.HitTestResult.Index);
                    //indexOfNearestPoint: 297, Exception: Index was out of range. Must be non-negative and less than the size of the collection.
                    var nearestPoint = s1.Transform(s1.Points[indexOfNearestPoint]); 

objo wrote at 2013-02-10 23:31:

jpnavarini wrote at 2012-04-19 19:20:

I have some measurements in my database which are angles, measured in degrees. The unit is º, just as temperatures in degrees Celsius (ºC). However, it is not possible to represent the º character in the legend. When I add the unit as º, it is replaced by a question mark in the legend.

Is it possible to make OxyPlot understand and represent º?

Thanks!

objo wrote at 2012-04-19 21:56:

Are you using the right degree symbol (Alt+0176)? UTF-8? Is the symbol included in the font you are using? Are you using WPF, SL or WinForms?

I'll change the ExampleLibrary/AxisExamples/TitleWithUnit example to demonstrate "°C" as the unit - it works fine here.  

ryoujr wrote at 2013-06-17 20:11:

    public override void Pan(ScreenPoint ppt, ScreenPoint cpt)
    {
       ...
        if (newMaximum > this.AbsoluteMaximum)
        {
            newMaximum = this.AbsoluteMaximum;
            //Original Code
            // newMinimum = newMaximum * this.ActualMaximum / this.ActualMinimum;

            // New Fix
            newMinimum = newMaximum / this.ActualMaximum / this.ActualMinimum;
        }
    }

objo wrote at 2013-06-18 12:22:

newMinimum = newMaximum * this.ActualMinimum / this.ActualMaximum;

ryoujr wrote at 2013-06-18 18:30:

cureos wrote at 2014-04-15 22:58:

objo wrote at 2014-04-16 07:44:

cureos wrote at 2014-04-16 22:46:

objo wrote at 2014-04-16 23:20:

cureos wrote at 2014-04-17 07:12:

objo wrote at 2014-04-25 11:44:

cureos wrote at 2014-04-25 11:56:

objo wrote at 2014-04-25 22:07:

jacobc1000 wrote at 2012-11-24 13:59:

Hi,

Thanks for a great project. It really works!

I am currently using it for a project that generates various barchart- and scatter charts. I'm using WPF and MVVM where the PlotModel is generated in the viewmodel each time the user changes criteria. The chart itself is hosted in <oxy:ploy> control.

I need to be able to copy the visual representation (i.e. the <oxy:plot> control) to the clipboard. Preferably as a vector image to insert into MS Office applications. I know that generating WMF/EMF files from WPF is challenging at best so a simple bitmap could also do.

What is the best way of accomplishing this? Thanks.

objo wrote at 2012-11-26 06:05:

Try Ctrl-C, the Plot control is bound to ApplicationCommands.Copy.

The Plot control also has SaveBitmap, ToBitmap, ToXaml,  methods.

Or use PngExporter, SvgExporter, PdfExporter etc.

Tephyrnex wrote at 2013-03-18 15:33: