[Eesger]

OK, thank you

[Eesger]

Your posted code needed quite a bit of cleanup, but I have made a fiddle for you, so it can bee addressed more easily:

• This reply was modified 8 years, 3 months ago by Eesger. Reason: link fixed

[Eesger]

I have the strangest thing now, since I am using ‘stackedArea’ I now have with a large dataset (and includeZero:false) that when a have a relative low value in the past and zoom in on a point “later in time” the “low value” is the low value of the complete dataset, not just of the zoomed part (so the zoom is now a bit messed up..).

I am working on quite a complex chart. But I’ll try to build a fiddle so you may be able to fix the bug

[Eesger]

It was a bit of programming, but I thought of a solution:

– use a stackedArea
– subtract the stacked value
– set fillOpacity of the base value to zerro
– custom toolTip (add the other value)

function makeStacked(stack,base) {
	if (stack.length != base.length) { alert('makeStacked: '+stack.length+' != '+base.length); return stack; }
	var stacked = [];
	for (var i = 0; i < stack.length; i++) {
		stacked[i] = stack[i];
		stacked[i].y = stack[i].y - base[i].y;
	}
	return stacked;
}

[Eesger]

The fillOpacity is not an option in my case. Placing of the stripLines is a good idea. However, my Chart renders with an automatic grid line interval, I cannot detect the current (automatic) interval can I?

[Eesger]

Slight improvement, On large datasets the “search speed up” doesn’t work right.

Change this section:

		if( document.getElementById("xData"+i) ) { // to speed up the search!
						ii_start = document.getElementById("xData"+i).innerHTML-2;
						if (ii_start < 0 ) { ii_start = 0 }
					}
					if (typeof(dataPoints[ chart.options.data[i].name ]) == 'undefined') {
			

with:

					if (typeof(dataPoints[ chart.options.data[i].name ]) == 'undefined' ) {

						if( document.getElementById("xData"+i) ) { // to speed up the search!
							ii_start = parseInt(document.getElementById("xData"+i).innerHTML);
							if (ii_start > 0 ) { 
								while (ii_start > 0
								 && e.entries[0].dataPoint.x.getTime() - chart.options.data[i].dataPoints[ii_start].x.getTime() < 0) {
									ii_start = parseInt(ii_start*.9)-6;
								}
							}
							ii_start-= 6;
							if (ii_start < 0 ) { ii_start = 0 }
						}