TeeChart for Microsoft Visual Studio .NET, Xamarin Studio (Android, iOS & Forms) & Monodevelop.
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el1179
- Newbie
- Posts: 5
- Joined: Fri Jul 12, 2019 12:00 am
Post
by el1179 » Tue Jun 16, 2020 8:01 pm
I have a fast line chart that is representing an Oscilloscope. The Bottom axis maximum points vary continuously so I am resetting that value repeatedly. My problem comes in that if I have zoomed in on the graph, the x-axis zooms back out as soon as I change the maximum value and the zoom is lost. How do I get it to "Stick" Thanks.
- This is before zoom
- good1.png (5.85 KiB) Viewed 10072 times
- This is after zoom
- zoomed.png (8.19 KiB) Viewed 10072 times
As soon as I run this:
chart.Axes.Bottom.Minimum = 0
chart.Axes.Bottom.Maximum = CurrMaxPoints
It zooms back out. I want it to stay focused on the same area of the graph.
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Christopher
- Guru
- Posts: 1603
- Joined: Fri Nov 15, 2002 12:00 am
Post
by Christopher » Wed Jun 17, 2020 4:10 pm
el1179 wrote: ↑Tue Jun 16, 2020 8:01 pm
As soon as I run this:
chart.Axes.Bottom.Minimum = 0
chart.Axes.Bottom.Maximum = CurrMaxPoints
It zooms back out. I want it to stay focused on the same area of the graph.
I'd have to see more of your code to have a clear understanding of what's going on, but staying focused on the same area of the graph means choosing very carefully the Minimum and Maximum axis values.
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el1179
- Newbie
- Posts: 5
- Joined: Fri Jul 12, 2019 12:00 am
Post
by el1179 » Fri Jun 19, 2020 2:32 pm
The 0-360 are just the labels and the actual points are 0 to anywhere from 5k-30k points. Since that high end changes every second or so I need to keep it up to date to show accurately.
I was able to find a simple suitable workaround where I do not change the bottom axis points when it is zoomed. If zoom cleared they get updated.
