[Chart performance improving]

I need to display line chart for very long vector ( about 200.000 points ).

The time of chart loading is very long ( The 20.000 points chart loading gets about 20sec ).

Each action required redrawing in the chart area, like zoom or series enable/disable, causes to refresh for long time too.

Could you let me recommendation how I can improve a chart performance?

 Thanks, Elina

[Zoom on the Multi panel chart]

I try to realise the zoom functionality in my application used ChartFX.

Actualy I need something (little bit) more complicated than Magnifier.

First of all, I have number of different charts in my application, part of them have one panel with different series, and one is multipanel chart.

If on the one panel chart I can use ZoomStyle = ZoomStyle.Strip (or Auto) mode and it works satisfactory,

but on the multipanel char If I'll set the next mode:

myChart.Zoom.Style = ZoomStyle.Strip; // or Auto

myChart.Zoom.Mode = ZoomMode.Selection; 

myChart.Zoom.ViewStyle = ZoomViewStyle.Selection; 

After a first selection I'll get the ArgumentException: An item with the same key has  already been added.

 

If I use Zoom.Style = ZoomStyle.Scroll,  I could select only once, after then I get the scroll bars and can't select more. My customer want to make sequence of nested zooms and option to zoom out.

How could I make sequenced selection and get the min and max points of the selected area after each selection ( I need zoom only by axes X has date/time format )

Thanks

WpfApplication1.zip

[The Tooltip for the LegendBox Items]

I'm again.

I've gotten the tooltips for LegendBox iems in this way. What do you think, Is it right way?

 <cfx:LegendBox.ContainerStyle> 

<Style TargetType="{x:Type ItemsControl}">

<Style.Setters>

<Setter Property="ItemContainerStyle">

<Setter.Value>

<Style>

<Style.Triggers>

<Trigger Property="Control.IsMouseOver" Value="True">

<Setter Property="Control.ToolTip" Value="{Binding Content}"/>

</Trigger>

</Style.Triggers>

</Style>

</Setter.Value>

</Setter>

</Style.Setters>

</Style>

</cfx:LegendBox.ContainerStyle>

[The Tooltip for the LegendBox Items]

Thanks. That's as exactly as I need!

Now, I need to attach a Tooltips to LegendBox items. I use the vertical Legend on the right side with fixed width, and the long items aren't visible fully.

I can add ToolTip to all the LegendBox, but I don't know how to add tooltip to each item and bind the Item Content as the tooltip text.

 

[The Tooltip for the LegendBox Items]

Any ideas about my issue?

[The Tooltip for the LegendBox Items]

 Hi, JuanC

I use the multiply panes chart and my LegendBox contains two groups for separate the series from different panes. I want to separate the Legend to two different boxes ( if it's possible, of course ) and align each of them to appropriate pane.

What about the Q2: Tooltips for Legend Items?

 Thanks

P.S. How can I add pictures from my computer and not from URL?

[The Tooltip for the LegendBox Items]

I use the version 8.0.3581.26941

I have two Q.

1. How do I do 2 different LegendBoxes instead use a grouping in one Legend?

2. I haven't added tooltips for LegendBox Items ( I won't use a scrool bar in the legend box, but tooltip for the long items only). I've tried to add a tooltip definition to DataTemplate\ContentControl  like this, but it's not working.  What can I do?

<DataTemplate x:Key="CheckableLegend">

<DataTemplate.Resources>

<cfxConverters:VisibilityToBooleanConverter x:Key="VisibilityToBool"/>

</DataTemplate.Resources>

<Grid Name="grid">

<Grid.ColumnDefinitions>

<ColumnDefinition Width="*" SharedSizeGroup="FirstRow" />

<ColumnDefinition Width="*" SharedSizeGroup="FirstRow" />

<ColumnDefinition Width="*" />

</Grid.ColumnDefinitions><CheckBox

VerticalAlignment="Center" Background="{Binding Path=Fill}"

IsChecked="{Binding Path=Series.Visibility, Converter={StaticResource VisibilityToBool}}" Grid.Column="0"

Margin="1,0,1,0"/><cfxControls:MarkerLegendControl Content="{Binding Path=Self}"

Grid.Column="1" />

<Border Background="Transparent" Grid.Column="2" VerticalAlignment="Center"><ContentControl

IsHitTestVisible="false" ToolTip="{Binding Path=Content}" Content="{Binding Path=Content}"

ContentTemplate="{Binding Path=ContentTemplate}"Foreground="{Binding Path=Foreground}"

FontFamily="{Binding Path=FontFamily}" FontSize="{Binding Path=FontSize}" FontStyle="{Binding Path=FontStyle}"

FontWeight="{Binding Path=FontWeight}"/>

</Border>

</Grid>

<DataTemplate.Triggers>

<DataTrigger Binding="{Binding Path=Dimmed}"><DataTrigger.Value>True

</DataTrigger.Value>

<Setter Property="Opacity" Value="0.25" TargetName="grid" />

</DataTrigger>

</DataTemplate.Triggers>

</DataTemplate>

Thanks, 

 Elina