When I zoom in on a series in highcharts, I've noticed that the first visible point of the series is where it starts to draw. This means that if the only point in the visible zoomed area is in the middle, then the line for that series only starts to draw in the middle of the window. Is there a way to make Highcharts render the previous value so that it does not "cut off" the previous values of the graph?
Before, zoomed out:
After, zoomed in (problem):
Desired:
I have tried setting cropThreshold and connectNulls (just in case) among other tweaks with no luck. Any suggestions?
Related
Couldn't show the value of point on the red line which is covered black circle.
Probably, near points are squishing each other. Is there a solution for fixing this ? Showing it in tooltip not a solution for my task.
I'm doing an areaspline chart where my gridlines on the x-axis are of the same colour as the background but different from the markers and the "information" background.
Here's a fiddle to exemplify: JSfiddle
I wanted the markers (and only the markers, the rest of the are would still have the gridline) to be "in front" of the gridlines so it's not cut in half.
xAxis: {
...
gridZIndex: 4,
...
I have tried moving the gridZIndex, the problem is that when I make it a value smaller, the part in grey stops having the grid which is not the effect wanted (although the markers stop being cut in half.
Is what I'm trying to do possible?
Without modifying the DOM it's not possible, so that's what I ended up doing. So, after closing the highcharts, using jquery you can do this:
$('.highcharts-markers').insertAfter($('.highcharts-grid')[1]);
Meaning that I moved the white markers on top of the grid. Problem solved.
(more suggestions to get around this are in the comment in this question)
I am displaying pie chart and drawing labels outside of chart itself. Sometimes I must display odd data, that one point takes up 90% of chart so the rest must "mash up" into remaining 10% of the chart. Everything is okay, but the labels (slice names) are also "mashing up". So I implemented mechanism that "sorts out" those labels not to collide with each other. Now I have a "word cloud" above my chart, since the biggest slice is always facing down, leaving all other slices facing up. That is my problem: I want to rotate the chart so that the biggest value data point would be facing left (leaving me right side of chart for labels).
So my question is:
How I could rotate pie chart around its center by code?
And rotating whole chart view is not an option since labels must remain horizontal.
So i found the solution myself:
you can use this code:
[(SChartDonutSeries*)[[chart series] firstObject] setRotation:-1.570];
To rotate first (the only in my case) DonutSerie by approx -90 degrees with this line of code. I use it in this delegate method:
sChartRenderFinished
I have chart showing time data. I have two points back in time which I need to "mark" in the chart.
I currently indicate these two by plotlines, but would like to show bar, with let's say green and blue bars showing the timespans (for example -13days from now with blue and -90days -> -13days with red).
I would use plotBands, but I can't specify their height and do not want to have them all over the chart.
Is there some way? I saw something about translating pixels and drawing rectangle, but wasn't able to make it work. Also - I zoom a lot in this chart.
You can use Renderer and add custom shape. In other cases, please attach mockup of your goal.
http://api.highcharts.com/highstock#Renderer
I'm trying to customize a Coreplot graph in many ways I can and the next thing I would like to do is place the X Axis Labels (one that is custom as well) at the bottom of the graph, independent of the X axis' position (whether it's scrolled up or down).
To make it clear, it is similar to giving the labels an offset value of something like 50.0. But offset is not the property I'm looking for since it fixes the labels location relative to the X axis.
Any way this can be done? Or do I have to skip the axisLabels property and place and layer or something manually at the bottom of the graph?
EDIT: Alright, I managed to place an axis on the bottom with CPTConstraints. But it's not on the bottommost. If a plot point is on those levels, the plot line overlaps the labels. I tired padding of the graph but of course, it moves the whole graph, hence the issue persists.
Thanks in advance
Make a second x-axis. Have the first one draw the axis line, tick marks, etc., as normal but no labels. Label the second one and set all of the line style properties to nil so it doesn't draw any of the lines.
Turns out that aside from the graph, the plotAreaFrame property of the CPTGrpah also has paddings. If you give more paddings to plotAreaFrame than that of the graph, the plot will be drawn in a smaller frame and the rest of the graph area will be for you to add what you want (i.e., a second Axis).
Big thanks to #Eric, for trying to answer Every single CorePlot question as soon as possible.
CorePlot does have a lot of customisation than I thought.