Our team has a hard requirement to support graphing down to the nanosecond resolution. This is not supported by the .NET DateTime struct. We are building a wrapper around the DateTime class to fix the precision problem (PreciseDateTime). Now the only element left is how can we interface the chart with PreciseDateTime? We are currently using a CategoryDateTimeXAxis with SplineSeries'. One solution was to utilize the NumericXAxis instead, but this leads to a goofy spline result (because of the ScatterSplineSeries implementation).
The spline comparison is shown in the attached demo project. If we can get the behavior of the first chart (CategoryDateTimeXAxis) within the NumericXAxis this could simplify our implementation. If not, other ideas and suggestions are welcome.
Thanks for the time.
Hello Will and thank you for posting!
I have been looking further into this matter and tested the project you have shared. It is seen that the ScatterSplineSeries is more precise than the SplineSeries. This is the design behavior of this type of series. ScatterSeries is used to emphasis the differences between points (scientific data) and it needs numeric axes to be defined (https://help.infragistics.com/doc/WPF/2014.1/CLR4.0/?page=xamDataChart_Scatter_Series.html).
Both series join points by a spline but if you do not need to highlight the deviation of data I currently could not think of a better solution than using the SplineSeries as in your example.
Hello Maria, I believe you may have missed the point.
I have looked through documentation and have not found anything about defining a custom interpolation algorithm, but this could solve our issue if we did find such an interface.
Hi Will,
Currently there is no built in interface that allows modifying the interpolation algorithm. You may consider logging a new product idea at http://ideas.infragistics.com. Steps to create your idea: 1. Log into the Infragistics Product Ideas site at http://ideas.infragistics.com (creating a new login if needed).2. Navigate to the product / platform channel of your choice (e.g. WPF, Windows Forms, ASP.NET, HTML5 / Ignite UI, iOS / NucliOS, etc.)3. Add your product idea and be sure to be specific and provide as much detail as possible. Explain the context in which a feature would be used, why it is needed, why it can’t be accomplished today, and who would benefit from it. You can even add screenshots to build a stronger case. Remember that for your suggestion to be successful, you need other members of the community to vote for it. Be convincing!
The benefits of submitting the product idea yourself include:- Direct communication with our product management team regarding your product idea.- Notifications whenever new information regarding your idea becomes available.
Additional benefits of the Product Idea system include:
- Ability to vote on your favorite product ideas to let us know which ones are the most important to you. You will have ten votes for this and can change which ideas you are voting for at any time.- Allow you to shape the future of our products by requesting new controls and products altogether.- You and other developers can discuss existing product ideas with members of our Product Management team.
The product ideas site allows you to track the progress of your ideas at any time, see how many votes it got, read comments from other developers in the community, and see if someone from the product team has additional questions for you.
The following forum thread provides some useful information about creation of custom scatter series if you need to inherit from the deafault series and modify the interpolation https://www.infragistics.com/community/forums/f/ultimate-ui-for-wpf/90802/custom-series-with-data-point-tracker/449845#449845.
Hi,
I am just checking if you have any other questions on the matter.
I assume the minimum time for a feature to be added would have to be the next major release.
When is the next release scheduled? Most likely the answer will not fit into our timeline. But for the sake of completeness, if I could get an idea when a next release might come out (not that the requested feature would be accepted of fit into the next release, but rather of an idea of the soonest theoretical time segment we are looking at).
Hello Will,
The new features are added in the new major releases. Probably this feature would not be included in the next one as there is a certain process for researching and planning that should be followed. Version 14.2 is expected to be released in the autumn (October). You can check our Release Schedule which is updated accordingly at: https://www.infragistics.com/support/service-releases and also check for updates the idea you have logged at the site for product ideas.