Comments (1)
Hi, unfortunately it is not possible. It will require some source code modification.
To do this you need to modify method ChartTouchHandler.onScale().
Instead of using single scale value you need to introduce scaleX
and scaleY
i.e.
//float scale = 2.0f - detector.getScaleFactor();
//note: getCurrentSpanX and getCurrentSpanY requires api 11+
float scaleX = 2.0f - detector.getCurrentSpanX() / detector.getPreviousSpanX();
float scaleY = 2.0f - detector.getCurrentSpanY() / detector.getPreviousSpanY();
You will also need to modify method ChartZoomer.scale() to take scaleX
and scaleY
as parameters instead of single scale
value.
from hellocharts-android.
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