prevent cancellation zoom chart wpf

Similar Questions

• Chart WPF: AllPlots collection does not contain the scales in the second time.

  Hello

  I'm using WPF OR chart, and I'm in the binder through the datasource property.

  I have two axes in XAML that represent the scales.

  When you press the button I create random data (shown in the code below).

  But when I delete all data and adds the data in the list of places that have already been added in the past (for example: if I added 3 data in the past and now I'll add only 2 or 3), then plots that are created in the variable AllPlots not gets scales except the first (never erased) and he destroyed me certain things such as zooming.

  List newdata As new List();
  
  Random r = new Random();
  
  < 6000;="">
  
  {
  
     NewData. Add (r.Next (-20, 45));
  
  }
  
  Data.Add (newdata);

  Hmm, a very strange problem. Unfortunately, I can't reproduce this behavior at all: I still see '2' for each parcel, before clear or after.

  I guess that you have run the example as-is in a new project, without any other change to match your real application? And that you use the latest version of measurement Studio 2015?

• Select curve chart WPF and nickname of curve in the ToolTip

  Hello

  How can I do, view the name of curve in the ToolTip, if I moved the mouse over the curve?
  Or view the name of curve staring above the curve?
  And, how can I select a curve with the click of a mouse?
  Possible?

  Kind regards
  Tamas

  P.S.: Community VS2013 & MS2015 Standard

  Using the logic of tool tip of the point value of graphic display WPF overviewand the GetPlotAt function, here's an example that uses mouse clicks to select tracks in a chart:

  partial class MainWindow: Window {}
  
  _selectedPlot of private land;
  public MainWindow () {}
  
          InitializeComponent ();
  Tour (option) on the hit test for lines, in addition to the actual data.
  
          Graph HitTestMode in the Group PlotHitTestMode.RenderedInterpolation;
  Updated tooltips to display quickly and for a long time.
  
          ToolTipService.SetInitialShowDelay (graph, 0);
  
          ToolTipService.SetShowDuration (graph, int. MaxValue);
  Fill in the chart with the data and the locations of the example.
  
          Graph BeginInit ().
  
          var plotBrushes = new [] {Brushes.Red, Brushes.Orange, Brushes.Green, Brushes.Blue ;}
  
          < plotbrushes.length;="" ++i="" )="">
  
              label As String = "Plot" + (i + 1);
  
              rendering engine of var = new LinePlotRenderer {Stroke = plotBrushes [i]};
  
              var field = new plot (label) {Renderer = renderer};
  
              Graph Plots.Add (field);
  Graph data [i] = new [] {i, i + 1};
  
          }
  
          Graph EndInit ().
  Monitor the plot area of the chart for mouse clicks.
  
          Graph. PlotAreaMouseLeftButtonDown += OnPlotAreaMouseLeftButtonDown;
  
      }
  private void OnPlotAreaMouseLeftButtonDown (object sender, MouseButtonEventArgs e) {}
  
          Check if a new route has been shown at the current position.
  
          Point ScreenPosition = e.GetPosition (graph);
  
          field var graphics = (Plot). GetPlotAt (screenPosition);
  
          If (plot == null | plot == _selectedPlot)
  
              return;
  Deselect the previous plot, if it exists.
  
          If (_selectedPlot! = null) {}
  
              ((LinePlotRenderer) _selectedPlot.Renderer). StrokeThickness = 1.0;
  
              (Graph (ToolTip). Tool - tip). IsOpen = false;
  
          }
  Select the new path and display a ToolTip.
  
          _selectedPlot = conspiracy;
  
          ((LinePlotRenderer) plot. Rendering engine). StrokeThickness = 2.0;
  
          Graph ToolTip = new ToolTip {Content = string. Format ('"{0}' selected', plot. Label), IsOpen = true};
  
      }
  
  }
  
  

  "Display the name of curve staring above the curve", with respect to the simplest approach would be to use a PointAnnotation to display a label to a particular position (probably hiding the target and arrow).

• Chart WPF: How to get the limits of PlotArea and axes

  I can't find explicit methods to get limits of PlotArea and axes.

  Please let me know workarounds if they are available. Actually a post explains how to get the PlotArea limits using RangeCursor. Are there alternative means for shafts?

  The photo below shows what I did in WinForms with the methods GetBounds and HitTest. I would like to draw the ornaments on the chart in WPF.

  

  I have attached a code example of this look ornaments around the plot area and the scales.

  Note that this relies on implementation details of the current version of WPF controls for the ornaments of the scale, as it was more effective than gradually points to test in the graph using the GetScaleAt method. We have intentionally left much of the underlying primitive types with a minimum documentation, like us they have changed in the past and may change in the future. Although these exact members can be removed in a future release, we do not expect to provide an equivalent function and stabilize the primitive API over time.

• Chart WPF: How to add a space between the labels and tick marks

  I would like to know how to set a margin between the main graduations and their labels in a chart for WPF.

  Especially in the x-axis labels are placed very close ticks.

  

  Unfortunately, there are no existing configuration property to add an extra space around the scale labels. I created a task to address them in a future version of Measurement Studio.

  To work around the problem, you can use a string format that includes extra whitespace in the result:

  
  
          
  
              
  
                  
  
                      Format="{}{0} " />
  
                  
  
              
  
          
  
      

  If you need a check, you can create a custom label presenter to add extra space for the generated label visual.

• How to simultaneously update multi field (chart wpf)

  How to use several piece add simultaneously data?

  For example, there are 18 parcels of graph. The Datasouce of the graph is ChartCollectiongraphds [18]

  It should run 18 times to APPEND to update the whole graph.

  Code:

  APS [0-17] = graphds [0-17] .append

  Dispatcher.BeginInvoke (aps, simulatedData) / / run 18 times

  I hope that there is similar data

  graphds. Append (datasources Point [18])

  who can cool 18 draw data simultaneously.

  complete code to testmultiplot.zip

  Thank you

  The types of specific elements involved aren't important. The idea of the AppendAll helper function is just to have a single method to perform all work to append, rather than citing for each separate addition. You can also set the programme of assistance generically and use any type of data for the items:

  private static void AppendAll( ChartCollection[] charts, IList[] values ) {

        for( int i = 0; i < charts.length;="" ++i="" )="">

            charts[i].Append( values[i] );

        }

    }

• chart WPF grid

  What happened to minro gridlines in the WPF version? There is no such property, only for ticks. WinForms version had that I can remember

  You're right: I forgot that the major divisions is a collection of notifying can be analysed, which meant that the rendering engine of minor divisions missing updates. I have attached an updated version of the custom axis model, updates to the rendering engine of minor divisions in a collection manager has changed.

• Chart WPF with visual host RenderMode.Hardware error

  graph rendermode = RenderMode.Hardware

  debug error:

  System.Windows.Threading.Dispatcher.Run ();

  The calling thread could not access this object because another thread has the object.

  I was able to reproduce the problem and track it to internal access not sent to the main window of the application and have created a task to solve this problem.

  We do realize that this access once, so as a workaround, you can force this initilaization arrive early (before starting the graphic on the background thread) by adding the call to the constructor of the main window:

  public MainWindow( ) {

        new NationalInstruments.Controls.Primitives.Tables.RenderTargetBitmapWrapper( 1.0, 1.0 );

  InitializeComponent( );

    }

• Prevent zoom, press SHIFT

  How can I stop on shift press zoom on chart WPF?

  Available on the chart with a keyboard interactions are controlled by the Interactions collection. By default, this includes the Zoom interaction (among others).

  To remove Zoom , you can assign an empty list in XAML with the collection Interactions="" , or to another list of interactions as Interactions="Pan, ZoomIn" .

• WPF chart - select a horizontal range

  Hello

  I use the chart WPF of MS2015, I want to allow the selection of a range of horizontal (without zoom) so that the user can see the selected range.

  1. How do I allow to select the horizontal range in the chart?

  2. the data graphic is ChartCollectionAnalogWaveform , how can I access the data of the selected only (I want to show statistical data)?

  What you describe sounds like a perfect fit for the RangeCursor . For example:

  XAML
  
      
  
          
  
              
  
          
  
      

  Code
  
      foreach( IPlot plot in graph.AllPlots ) {

        var values = rangeCursor.RetrieveValues( plot );

        using( var xValues = values[0] )

        using( var yValues = (Buffer)values[1] ) {

            double average = yValues.Average( );

            string example = string.Format( "Plot {0} average over [{1:0}]: {2:0.##}", plot.Index, rangeCursor.ActualHorizontalRange, average );

            // ...

        }

    }

• App "Unresponsive" with WPF graphics, GraphInteraction.Zoom and sliders

  I can't chart WPF (MS2013) to work with the sliders AND the GraphInteraction of Zoom (zoom with the mouse). The zoom rectangle redraws so slowly that the app is unusable, sometimes even suspended for long enough to get the "(ne répond pas) title" Windows. " WPF is supposed to redraw at 60 fps, but I'm< 1="" fps="" when="" i="" use="" more="" than="" a="" couple="" cursors.="" how="" can="" i="" use="" both="" mouse-zoom="" and="" ~100="" cursors="" at="" the="" same="">

  The attached csproj is based on the example of Charting. I pre-load 4 locations with 900 data points each and add 90 sliders and set the graphics DefaultInteraction on Zoom. When you try to mouse-zoom on a region, the zoom rectangle does not appear immediately and all holding left mouse to the bottom of the rectangle redraws slowly)< 1="" fps),="" not="">

  I tried to go to Raster and marking the sliders as ReadOnly, but it does not help. I considered to implement my mouse zoom (app has an example of resizing control just to test the performance of a simple), but it feels stupid disable the native just to implement zoom even. I do have performance problems similar with the mouse zoom rectangle (~ 5 fps refresh) without sliders, but this behavior is easier to reproduce. In our application, we often represent 4 channel with 500 K points and 100 data sets + read-only cursors.

  Advice / Solutions / advice would be really appreciated!

  -David

  

  The problem is due to the large number of cursors, each of which is generating its own visuals and recalculate its position on each update to the chart. The Visual zoom being in the same layer that cursors, layout is also done on the sliders each time the Visual zoom resizes.

  Instead of using the individual sliders a hundred to annotate every point, I would recommend using a custom object to render the annotations for all points. Joined a fast model (which still reduces the number of visuals generated using a custom point form which includes the vertical line of the reticle). Add an instance of the AnnotatingCursor to the Children collection of the graph will mark each 10th point with a diamond.

• Chart how many plots with wpf chart

  This is probably a very basic question, but I can't understand how the chart more than a set of data with the chart WPF in VS2010.  There is a DataSource property on the chart, but I don't see the same on each class of land.  I can't find any documentation on the source property of the chart data.  Can I pass an array of doubles and he plots very well but now I need to draw two sets of data.  Can anyone help?

  The DataSource property is documented in the how: map and graphic subject and on the GraphBase class (which is the type that defines the property). However, it seems that these issues do not directly address your question multiple plot; I put in a request to improve this.

  To answer your question, if you use DataSource to pass an array of double values in a plot, you can use a collection to pass data to multiple locations (for example a double[][] , a List , or a ObservableCollection ).

  Otherwise, you could use the Data collection to provide each parcel with data; for example:

  graph.Data[0] = /* double[] for plot 0 */;

    graph.Data[1] = /* double[] for plot 1 */;

  ~ Paul

• Upgrade to 20.0.1 Zoom problem

  Just my updated Firefox updated itself. Google search results are now too small to read. Not possible to zoom. The page flashes until the correct size but have liked so to a size a fraction of the screen and unreadable. Chrome so ok with that for now. How to revert to the previous version, which worked!

  SOLUTION: install the add-on 'Always Zoom' of https://addons.mozilla.org/en-US/android/addon/always-zoom/

  Part of the problem is that the search results page not allowing not zoom. Why prevent browsers zoom is beyond me - on a small screen device zoom is a requirement Basic, but for some reason they let writers page turn it off. The person who came up with the idea of blocking zoom is a right rlap.

  In any case, I installed the add-on Zoom always thinking it would allow me to work around the zoom-out by zooming results pages, but with installed pages are never dezoomes anyway! It's probably the results page with a zoom ridiculous defined level and prevents the add-on to be obeyed.

• AutoScale graphical wpf

  How can I autoscale graphical WPF on request? When you work with graphics WF, I used something like this (activate autoscale, then disable it):

  (Graph (AxisDouble). Axes [0]). Setting device = RangeAdjuster.FitLoosely;
  (Graph (AxisDouble). Axes [1]). Setting device = RangeAdjuster.FitLoosely;

  (Graph (AxisDouble). Axes [0]). Setting device = RangeAdjuster.None;
  (Graph (AxisDouble). Axes [1]). Setting device = RangeAdjuster.None;

  but chart WPF has no effect

  Immediately all the WPF Chart redraws the data when the Adjuster on a change in the axis. To do this manually, you can call the Refresh method on the chart. In your example:

  ((AxisDouble)graph.Axes[0]).Adjuster = RangeAdjuster.FitLoosely;

    ((AxisDouble)graph.Axes[1]).Adjuster = RangeAdjuster.FitLoosely;

    graph.Refresh();

    ((AxisDouble)graph.Axes[0]).Adjuster = RangeAdjuster.None;

    ((AxisDouble)graph.Axes[1]).Adjuster = RangeAdjuster.None;

• WPF graphics export to image

  How to export the chart WPF image vector or matrix?

  If you want to set the size of the control in XAML, you will put in a sign that not cut the size of its children, as a Canvas :

  
  
          
  
      

  Using this XAML code with the original bitmap save extracted should produce an image without cutting measure thousand pixels on each side.