liuzu wrote at 2012-11-08 05:35:

I am afraid that just write with poor English.

I want to draw a series by the mouse left button click.

1)       Mouse left click to get the Point form the chart and the Point’s value is relation with x,y axes that don’t relation with screen point.

2)       Add the getting Point to the series ‘s DataPoint

So,how can I get the point that value relation with x,y axes from the chart?

Best Regards.

objo wrote at 2012-11-08 06:12:

see the "Mouse events > LineSeries and PlotModel MouseDown event" example in the example browser, I think that one does exactly what you need.

liuzu wrote at 2012-11-08 06:27:

I appreciate your help very much. objo

amity2001 wrote at 2012-10-18 07:09:

I am using this great tool to plot ECG graph.

As ECG graph requires grid, I used MajorGridlineColor and MinorGridlineColor property to draw grid. But when I maximize the form the grid gets distorted

Please look at this Snapshot for details.

Thanks in advance.

objo wrote at 2012-10-18 07:40:

I think this is the same problem as in http://oxyplot.codeplex.com/discussions/357350. Change from dashed/dotted to solid grid lines. It is probably a bug in WPF!

amity2001 wrote at 2012-10-18 08:09:

Hi objo,

Thank you very much...!

I used solid grid line with color having low alpha.

Happy coding...!

guevara123 wrote at 2013-12-19 12:00:

objo wrote at 2014-01-07 21:31:

guevara123 wrote at 2014-01-12 12:00:

Thanks for your answer. I tested the LineSeries and it works fine. The problem I have only happens when I change the LinearColorAxis on a HeatMapSeries..




Both plots are created the same way, except for plot 2 I comment out Line 3 and 4:

   HeatMapModel = new PlotModel("Peaks");
   HeatMapModel.Axes.Add(new LinearColorAxis { Position = AxisPosition.Right, Palette = OxyPalettes.Jet(500)  });
   // ((LinearColorAxis)HeatMapModel.Axes[0]).Minimum = 0; // __for the lower plot..__
   //  ((LinearColorAxis)HeatMapModel.Axes[0]).Maximum = 5; 
    var hms = new HeatMapSeries { X0 = x0, X1 = x1, Y0 = y0, Y1 = y1, Data = peaksData };
   HeatMapModel.Series.Add(hms); 

Now I want to change the Maximum and Minimum of the LinearColorAxis at runtime, by a button click i.e. This only works when I create a new PlotModel!
So this code wont work:

   ((LinearColorAxis)HeatMapModel.Axes[0]).Minimum = 0; 
    ((LinearColorAxis) HeatMapModel.Axes[0]).Maximum = 10;  
    HeatMapModel.RefreshPlot(true);

I have the feeling that this behaviour occurcs, because the HeatMapSeries itself is a PlotModel ( just an assumption..)

guevara123 wrote at 2014-03-01 10:49:

objo wrote at 2014-03-01 13:07:

objo wrote at 2014-03-01 13:10:

guevara123 wrote at 2014-03-01 15:47:

guevara123 wrote at 2014-03-02 20:30:

I've found another potential Bug. When ColorAxis.RenderAsImage is true, then the mapping of the HighColor of the ColorAxis with the displayed colors in the HeatMap isn't correct.

This can be seen in the LinearColorAxis -> RenderAsImage(vertical reversed) Example..

armensg wrote at 2014-02-10 20:11:

decatf wrote at 2014-02-11 17:06:

double panStep = xAxis.Transform(-1 + xAxis.Offset);
xAxis.Pan(panStep);

armensg wrote at 2014-02-12 12:31:

WhizzWr wrote at 2014-03-17 16:14:

tboloo wrote at 2013-03-18 15:46:

        private ObservableCollection<TestPointViewModel> testPoints = new ObservableCollection<TestPointViewModel>();
        private ReadOnlyObservableCollection<TestPointViewModel> readonlyTestPoints = null;
        public ReadOnlyObservableCollection<TestPointViewModel> TestPoints
        {
            get
            {
                if (readonlyTestPoints == null)
                    readonlyTestPoints = new ReadOnlyObservableCollection<TestPointViewModel>(testPoints);
                return readonlyTestPoints;
            }
        }

            
                <oxy:Plot.Series>
                    <oxy:ScatterSeries Name="singleShotSeries" Title="Shot" MarkerType="Cross" DataFieldX="B" DataFieldY="G" ItemsSource="{Binding Admittance}"/>
                </oxy:Plot.Series>

doctorj wrote at 2012-09-19 22:42:

Hi ,

I have a graph that is bounded by two vertical lines - is there a way to fill the area with a color?

Thanks,

Jerry

objo wrote at 2012-09-24 10:23:

under a graph: use an AreaSeries

between two vertical lines: use a RectangleAnnotation with MinimumY=MaximumY=NaN

doctorj wrote at 2012-09-24 15:26:

actually it is bounded by two vertical lines and the graph line above and the x axis so it is an enclosed area , I have plotted. I have used lineseries to plot the curve and two straight lines , do I still use an AreaSeries function? Thanks for your help

Also do I need to update my libraries since you have updated your PCL/Metro for Windows Store auth. ?

Thanks

PanCotzky wrote at 2012-09-19 11:18:

Good day!

I'm trying to use AngleAxis in my application, but encountering a problem.

var linearAxis3 = new AngleAxis();
linearAxis3.Position = AxisPosition.Right;
plotModel1.Axes.Add(linearAxis3);

When i'm starting my program, it writes "OxyPlot paint exception: Magnitude axis not defined". What am i doing wrong?

Thank you in advance!

objo wrote at 2012-09-19 11:33:

Angle/Magnitude axes are used for polar plots. See the polar plot example!

Will improve the error message!

PanCotzky wrote at 2012-09-19 12:13:

Thanks a lot! Unfortunately it is not what i wanted it to be. I need an ordinary linear axis, but labeled in degrees. Can LinearAxis be configured this way or should i use custom labels (if there are something like it)?

objo wrote at 2012-09-24 10:22:

yes, you should use a LinearAxis. Set the StringFormat property if you want custom formatting of the labels.

RickNZ wrote at 2012-08-29 03:32:

Is it possible to disable the numbers on a LinearAxis without also disabling the axis label?

If not, can the size of the numbers be changed independently of the size of the label?

objo wrote at 2012-08-29 06:50:

Currently it is not possible to disable the numbers. (maybe you can find a workaround by setting MajorStep to a large number? or create a derived LinearAxis that only renders the axis title)

The same size (+font and color) is used for both the axis title and the tick labels. This is based on the 'plot style' recommendations in Tufte's and Few's books (see links on the home page). It is of course possible to make everything customizable, but I think that will be on the cost of simplicity.

RickNZ wrote at 2012-08-29 09:29:

Using a large MajorStep causes the high-end value of the axis not to be displayed, but the low-end is still there.

In addition to using this capability on a single axis, this might also be useful as a way to provide a second level of axis labels when you have multiple panes / axes sharing a single major axis (so there's not a separate scale/axis that would be applicable for PositionTiers).

sanndeb wrote at 2011-11-22 21:12:

Ohow, thanks for such hard work. Just want to know that will it be very hard to implement zooming just by left mouse pressing & dragging as in WPF we can do that in datavisualization.charting & just a mouse hover over the lines to show the values, i.e i don't want to use keyboard at all.

Also an optional property for Plot can be like not only i want to see values over thr lines as tooltip when we move over them but at any point inside the chart will show the corrosponding value.

And lastly can i use this library in my company's application for commertial purpose. :) Thanks again.

objo wrote at 2011-11-23 06:33:

right now the mouse gestures are hard coded (in the Plot.GetManipulator method), but I am planning to make this customizable. I'll add it to the issue tracker.

Yes, you can use the library in commercial applications, the license is Ms-PL.