I would like to create custom annotation combined with multiple annotations like attached picture.(Text + box + line * 3)
Are there any good solutions?
Now I am creating it with separate each annotations showed code below. In this way, it is difficlt to move or delete them with group.
<s:SciChartSurface.Annotations>
<s:TextAnnotation Foreground="Black"
HorizontalAnchorPoint="Center"
VerticalAnchorPoint="Bottom"
Text="XXX um"
X1="90"
Y1="6" />
<s:BoxAnnotation X1="84" X2="96" Y1="2" Y2="11" Background="#77FFFFFF" />
<s:LineAnnotation Stroke="Black" X1="85" X2="95" Y1="3" Y2="3"/>
<s:LineAnnotation Stroke="Black" X1="85" X2="85" Y1="6" Y2="3"/>
<s:LineAnnotation Stroke="Black" X1="95" X2="95" Y1="6" Y2="3"/>
</s:SciChartSurface.Annotations>
And one more question.
How to catch the event of adding annotation of view side from viewmodel?
Thank you.
- Yutaka Dejima asked 5 years ago
- last edited 5 years ago
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Hi Yukata,
Yes! We have a feature for this called Composite Annotations. Check it out here:
https://www.scichart.com/example/wpf-chart-example-composite-annotations/
https://www.scichart.com/documentation/v5.x/The%20CompositeAnnotation%20Type.html
<s:CompositeAnnotation x:Class="SciChart.Examples.Examples.AnnotateAChart.CompositeAnnotations.MeasureX.MeasureXAnnotation"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:s="http://schemas.abtsoftware.co.uk/scichart"
Canvas.ZIndex="1">
<s:CompositeAnnotation.Annotations>
<s:BoxAnnotation Background="#FFBADAFF" CoordinateMode="Relative" Opacity="0.3"
X1="0" X2="1" Y1="0" Y2="1" />
<s:LineArrowAnnotation CoordinateMode="Relative"
Stroke="#FFBADAFF"
StrokeDashArray="2,4"
StrokeThickness="1"
X1="0"
X2="1"
Y1="0.5"
Y2="0.5" />
<s:LineAnnotation CoordinateMode="Relative"
Stroke="#FFBADAFF"
StrokeThickness="1"
X1="0"
X2="0"
Y1="0"
Y2="1" />
<s:LineAnnotation CoordinateMode="Relative"
Stroke="#FFBADAFF"
StrokeThickness="1"
X1="1"
X2="1"
Y1="0"
Y2="1" />
<s:TextAnnotation x:Name="MeasureText"
Background="CornflowerBlue"
CoordinateMode="Relative"
CornerRadius="3"
Foreground="White"
HorizontalAnchorPoint="Center"
X1="0.5"
Y1="1"/>
</s:CompositeAnnotation.Annotations>
</s:CompositeAnnotation>
This allows you to create one annotation which is a group and set X1Y1 X2Y2 once. Also you can add/remove the entire composite at once.
Please have a look and let me know what you think!
Best regards,
Andrew
- Andrew Burnett-Thompson answered 5 years ago
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Thank you very much. Your answer helped me.
How about the answer of another question below:
“How to catch the event of adding annotation of view side from viewmodel?”
- Yutaka Dejima answered 5 years ago
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