Pan only, no zoom, on cursor scroll?

cwooldridge1 commented 2 years ago

I've noticed on the pan setting on the chart that when you pan it doesn't just pan it also affects the zoom level of the x-axis. This trait is mainly apparent when panning towards the most recent data (scrolling in). What I am envisioning is when scrolling in the width of the zoom stays the same but the x-axis position of both the selectionMin and selectionMax get incremented the same amount instead of the current way of the selectionMin being incremented by more than the selectionMax. Does this make sense?

Also, I noticed that the zoomMinCount on the new GaplessDateAxis is very off. In my code pen the minZoomCount is 10 and I can zoom in up to to two increments. https://codepen.io/cwooldridge1/pen/eYeexee?editors=1011

Thanks

martynasma commented 2 years ago

I suppose this is because of over-zooming, which is enabled by default. You can turn it off by setting maxDeviation: 0 in your axis settings:

https://www.amcharts.com/docs/v5/charts/xy-chart/zoom-and-pan/#Over_zooming

P.S. can you post the zoomMinCount thing as a separate issue? It's unrelated, and might be a bug. Thanks.

cwooldridge1 commented 2 years ago

I'm sorry I must have been unintentionally ambiguous with the above statement. What I am referring to is I want the range of the zoom to remain consistent when panning inwards. Panning on the current chart when zooming outward keeps a consistent zoom width (what I want) but when you start to pan inward (toward recent data) the pan's width decreases until the zoomMinCount condition is met. For example, panning back in time keeps a consistent width of the following: **

** However once I start to pan inwards (toward recent data) the zoom width decreases to the min zoom count:

After only a few scrolls the width of my zoom in reduced to the minimum zoom count (the number of elements in the zoom should stay consistent until the end of the series data is met like how panning outward does). This would be ok if I reached the end of the series data but there is still much more data (in the image above) that can be panned over. I want the width to remain constant when zooming in (until the end of the series) such as how zooming out does.

P.S. I made a new issue for the zoomMinCount as requested. Thank you for all your time

martynasma commented 2 years ago

Hm, yeah, that must be a bug. It should not zoom at all of wheelY: "panX" is set.

We'll need to fix this.

Thanks for thorough explanation!

keegandonley commented 2 years ago

Following this issue as it's become problematic for my implementation as well

martynasma commented 2 years ago

Fixed in 5.1.5.

[5.1.5] - 2022-02-22

Added

minSize setting added to Flow (Chord and Sankey) series. It's a relative value to the sum of all values in the series. If set, this relative value will be used for small-value nodes when calculating their size. For example, if it's set to 0.01, small nodes will be sized like their value is 1% of the total sum of all values in series.

Changed

Direction of vertical panning with mouse wheel in an XYChart was inverted to make it consistent with OS native scrolling direction.

Fixed

Fixing ES6 module detection by BundlePhobia (Issue 294).
Parsing of dates using "i" format was not working properly when no milliseconds were supplied.
Using minZoomCount and maxZoomCount on a GaplessDateAxis was not working properly.
Sometimes vertical XYChart scrollbar was not reacting to chart's pan via mouse drag or wheel.
Using mouse wheel on a chart that was setup to pan was also zooming in/out in addition to pan.
In some cases grid on GaplessDateAxis was not being placed properly. Grid and Label placement improved.
ForceDirectedTree could freeze when used with Animated theme in some cases.
Changing of baseInterval on DateAxis was not properly working in some cases.
In some cases, when no animated theme was used, a state on a Sprite was not applied.
Setting data on MapSeries after geoJSON was updated was not working properly which resulted heat rules not to be applied.
It was difficult to make a selection close to the start/end of plot area on RadarChart.
When XYChart was fully zoomed in, using mouse wheel would start panning the chart instead of zoom.

Full change log.

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amcharts / amcharts5