Hi,
We are evaluating XamDataChart and considering to purchase the product. However, there is a single feature that we could not find support for.
My question is does the chart support annotations? (I mean user drawing trend line, fibonacci retracements, etc.)?
According to https://es.infragistics.com/community/forums/f/ultimate-ui-for-wpf/50063/annotations-on-charts/263567#263567, this feature was not supported in 2010. Was the support added?
If yes, could you please provide a code snippet how to use it.
if no, could you please provide some guidance on how to implement it: what Canvas to use (e.g. custom series, or do you have smth built in), how to attach event handlers (to the main chart or to a canvas), how to make the annotations work in sync with built-in zooming / panning capabilities?
Thank you,
Adam K
Yeah, I figured it out thanks. As mentioned in another post, I now make extensive use of scaled/unscaled values to persist annotations etc. back to my view model with meaningful values.
HtD
Sorry, this slipped throught the cracks, did you still need assistance with this or did you figure it out already? You'll see its actually using the axis values internally to store the bounds of the shape so that it can automatically map it back into pixel space as your zoom level changes.
-Graham
Graham, is it possible to determine the axes values from this overlay?
Many thanks
Wow man, this is awesome! Fibonacci retracement overlay is important in equity analysis! Great post! Even more awesome if this was part of the chart!
+1 on this post. I too am evaluating xamDataChart and would have asked the exact same question. Your sample code will help me formulate basic implementations of Fibonacci Arcs and Fans plus some other trend analyses.