Draw min-max annotations inside chart and ensure they are initially visible

Hi Benjamin Mesing,

Regarding the points you mentioned:

1. You can obtain the minimum and maximum values from the renderable series using renderableSeries.getYRange(). From this, you can retrieve the minimum and maximum values with getMin() and getMax(). If the chart is scrollable and annotations are placed based on the current visible range, you will need to manually calculate the min and max values based on the visible range. You can listen for changes in the visible range by using setVisibleRangeChangeListener on the axis.

2. To make the annotations visible, you can set the visible range to:
   2 × (height of annotations) + padding

You can find some useful documentations below.
visibleRangeChangeListener
IRange Class

Hi Maulik,
thank you for your response, the first answer is already helping.
For the second answer there is one thing I do not understand: as far as I know, “visible range” is e.g. 5€-10€ while “height of annotation” is in pixel. So I would have to calculate the “visible annotation-height” by (range/chart-height-in-pixel)*annotation-height-in-pixel (especially do not like having the chart-height in this formula). Is there an easier way (like adding an axis-padding -in-pixel or having a zoom-fit-to-annotations method)
.
Regards
Benjamin

Hello Maulik Senghani,
thank you for your response and the hint towards Min, max, that solve the data question.
With regards to your second answer: I do not fully understand your proposed solution: visible range is in the y-Data-Type i.e. currency (10-20€) but the annotation height is in pixel/unit. So I cannot increment the visible range without converting the pixel value to a currency-Value. Do you propose to do some kind of calculation like this:

annotation_height_in_currency =
(visible_range_in_currency / chart_size_in_pixel) * annotation_height_in_pixel

I had hoped for a more conveneint solution.

Regards
Benjamin