Problem with scaling of Graph Element

Hello

I have some questions that I hope you might be able to answer.

1. We have a scenario where we have a line graph with multiple lines and each line is associated with an AlternativeYAxis. We don't want to display these AlternativeAxes so we set their visibility to collapsed. Instead we set the maximum and minimum values of the primary Y-Axis to the values of the Y-Axis associated with the selected line. The problem is that if the visibility of the AlternativeYAxes' are set to collapsed, the lines won't scale together with the rest of the graph if you change the size of the window. Can this be fixed?

2. We have discussed with you earlier if it would be possible to display the alternativeYAxes as an overlay over the graph instead of placing it on the side. This has now come as a direct request from our customer. Is this something that can be implemented?

Best regarsd

Hello

When an axis is collapsed it no longer collects SizeChanged events which is why the corresponding line no longer updates correctly. To work around this, please set the Width property of the alternative Y axes to 0 instead. This will hide the axes but avoid the scaling issue. Sorry this is not very discoverable. I've made a note to have better support for collapsed axes in the future if possible.

I can have a look at implementing the overlay axis feature for you. I should be able to finish it by late next week. One thing to work out is how to mange displaying tick marks, labels and the title. If you could please send a couple of images of roughly how you would expect multiple alternative axes to overlay the chart then I can work from that.

Jason Fauchelle

Hello Jason

That sounds very good, thank you!

Best regards

Please send me a couple of images of the desired result so I can make sure I'm meeting your requirements while I implement this. Do you need to be able to specify which X axis position each alternative Y axis will line up against?, or do you want all the alternative y axes to line up with X = 0?, or do you just want the alternative Y axes to be pushed to the far right of the inside of the graph plotting area?

Regards

Jason Fauchelle

Hello Jason

Here I attach a screen shot of our old Graph component(not WPF) that shows the alternative axes as overlays over the rest of the graph.

Best regards

Thanks for posting the image

I've implemented this feature for you now which will be available in the next nightly build. The next nightly build will be available at around 1200 GMT (about 9 hours from now). Nightly builds can be downloaded from here: http://www.mindscapehq.com/products/wpfelements/nightly-builds

To use this feature, simply set the Placement property to Overlay on the axes that you want to overlay the chart. All the overlay axes will be evenly spaced exactly like in the image you posted. Also, in case you don't already know, you can set the Padding of each y axes to something like 0,6,0,6 to push in the top and bottom tick marks like in the image you posted.

I look forward to any feedback you have about this new feature.

Jason Fauchelle

Thank you!

We will try to test this implementation as soon as possible.

Best regards