I’ve been struggling to understand the range types in both bar and line charts. My bar chart has a y Axis of date type, and my line chart has a x Axis of date type.
On creating the charts, on both of them I’m setting an initial range that will allow the chart to initially display 7 days, if there is more than 7 days to be shown (and the other data will be visible by panning/zooming):
yRange = [[SChartDateRange alloc] initWithDateMinimum:firstDayToShow andDateMaximum:self.allDaysSorted]; self.chart.yAxis = [[SChartDateTimeAxis alloc] initWithRange:yRange];
or, in case there is less than 7 days to be shown, I create the axis without setting a range, so that way all my data will be displayed
self.chart.yAxis = [SChartDateTimeAxis new]; self.chart.yAxis.rangePaddingHigh = [SChartDateFrequency dateFrequencyWithDay:1]; self.chart.yAxis.rangePaddingLow = [SChartDateFrequency dateFrequencyWithDay:1];
This way my data always fit well on the chart.
My problem is when I reload my data and redraw the bar chart. Sometimes, I need to reload from a 15-date chart to a 4-date chart, for example. When I do that, I still have the same range, and when I redraw the chart, it seems that there is nothing there, but it is because the data is outside the visible initial range. I’m trying to re-set the range before redrawing it, but I’m confused on how to do that.
Oddly enough, the line chart seems to adjust itself just fine.
Could I get some help on that? Thanks!