Hello kasar,

Thank you for your post.

Firstly when migrating over to xamDataChart, I would recommend that you take a look at the documentation and samples for the xamDataChart.

Documentation:

http://help.infragistics.com/NetAdvantage/WPF/2013.1/CLR4.0/?page=xamDataChart_xamDataChart.html

Samples:

http://es.infragistics.com/products/wpf/data-chart/

You can download the samples with the product installer so that you can interact with them as they are static images on the website version of the samples.

You can also view the showcase applications which use the xamDataChart control at the following location:

http://es.infragistics.com/products/wpf/application-samples

You may also find this link useful as it explains the process of migrating from xamChart to xamDataChart.

http://es.infragistics.com/community/blogs/kiril_matev/archive/2011/11/10/upgrading-your-charting-experience-using-xamdatachart.aspx

Now, to answer your questions.

3D – this.myChart.View3D

Please refer to the following blog post regarding 3D in xamDataChart

http://es.infragistics.com/community/blogs/jason_beres/archive/2011/01/01/important-product-changes-and-control-retirements-in-2011-2.aspx

Animations by data assignment in XAML

For the xamDataChart you can animate your charts using the Motion Framework. Please refer to the following help documentation for more information:

http://help.infragistics.com/NetAdvantage/WPF/2013.1/CLR4.0/

Sample –

http://es.infragistics.com/products/wpf/sample/data-chart/motion-framework-chart

DataPoints

The xamDataChart control is optimized for performance and can easily bind to a large number of data points. Please refer to the following help documentation for more information:

http://help.infragistics.com/NetAdvantage/WPF/2013.1/CLR4.0/?page=xamDataChart_Data_Binding.html

http://help.infragistics.com/NetAdvantage/WPF/2013.1/CLR4.0/?page=xamDataChart_Data_Mapping.html

Samples:

http://es.infragistics.com/products/wpf/sample/data-chart/binding-high-volume-data

http://es.infragistics.com/products/wpf/sample/data-chart/binding-real-time-data

http://es.infragistics.com/products/wpf/sample/data-chart/updating-data-points

Caption

A suggestion on how to implement this in xamDataChart control would be by adding the chart and a TextBlock (with the title) in the a StackPanel or a Grid control. Currently it cannot be implemented directly. Although this is something that we are planning for a future release.

Image Comparisons

How can I define a distance between the first and last point of a series to the border? (Example: Image 1 or 2)
The can be achieved by setting a Margin on the series,

Legend

How can I optionally expand or fade in the explanation (legend), becauce there is not enough place and so  each serie in the explanation is partially overlapped.
The Legend can be docked to the xamDataChart control’s plot area. You can place it in many different areas.

Please refer to the Legend documentation for more information.

http://help.infragistics.com/NetAdvantage/WPF/2013.1/CLR4.0/?page=xamDataChart_Legends.html

Samples –

http://es.infragistics.com/products/wpf/sample/data-chart/legend-docking

http://es.infragistics.com/products/wpf/sample/data-chart/legend-docking

http://es.infragistics.com/products/wpf/sample/data-chart/legend-types

Format Axis

How can I dynamically adjust the width of labels in y-axis to their maximum width? If a label is to big, it is not completely displayed, but truncated.

Or how can I dynamically change the size of font? (Example: See the difference of FontSize in image 1 and 2)

Refer to the following documentation for more information on formatting the axis labels

http://help.infragistics.com/NetAdvantage/WPF/2013.1/CLR4.0/?page=xamDataChart_Axis_Label_Templates.html

http://help.infragistics.com/NetAdvantage/WPF/2013.1/CLR4.0/?page=xamDataChart_Axis_Label_Settings.html

http://help.infragistics.com/NetAdvantage/WPF/2013.1/CLR4.0/?page=xamDataChart_Axis_Label_Format.html

The following samples also demonstrate how to format the axis labels:

http://es.infragistics.com/products/wpf/sample/data-chart/axis-label-format

http://es.infragistics.com/products/wpf/sample/data-chart/axis-label-settings

http://es.infragistics.com/products/wpf/sample/data-chart/axis-label-templates

http://es.infragistics.com/products/wpf/sample/data-chart/axis-orientation