Does highcharts support phase change lines ? It may be called multiple things but im looking to see if an X axis delineation line can be drawn in highcharts. It is used to specify a specific date in time where something in the environment changed. The chart reader would then look at that line and see if that change to the environment impacted the data represented by the lines in the line chart.
Anyone know if this can be done with high charts ? Sample image attached.
Great answer from Ondkloss: http://www.highcharts.com/docs/chart-concepts/plot-bands-and-plot-lines That page shows exactly what I was looking for.
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Earlier, I asked how to create "spectra" charts in Vaadin (see How to create a "spectrum" chart using Vaadin 14+). It turned out that one didn't actually need to create barcharts -- the only real need seemed to be to set the pointwidth to 1. (This solved the "very wide" widths lines when zooming.)
HOWEVER: I think there's a bug in vaadin charts when one has more than 1 series presents and when one zooms: the line moves to an inccorrect position on the x-axis (or the x-axis is no longer placed correctly.) Any thoughts on how to resolve? Here are two screenshots showing the problem. In the first one, only ONE series is visible and the line is at the correct x-axis point of ~598.36. In the second screenshot, though, (where the only change I have made is to enable the 2nd series), the line moves to an INCORRECT x-axis coordinate (it seems like it's ~598.25!!!).
One theory I have is that adding the second series somehow confuses the chart from determining the correct x-axes....maybe because each series has it's own x axis logic in some way? Not sure....(I'm using Vaadin 14 and I tested this both in my dev env and on production.)
I got an situation like this. I would like to using line chart to draw stacked value. I have tried google search but i can't find the solution.
For example: On date May/23 i got 3 values, i would like to display these on line-chart.
How could i achieve this? Does highcharts support to do this one. Please take a look at the link attach to clearer the question
Stacked line chart image
Addition info: Im using highcharts to do this one
Thanks for any comment or answer
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I should use scatter-chart to achieve this one
Regarding the tooltip, I would suggest using a scatter series instead of a line. Set the lineWidth in the plotOptions and it will plot just like a line series, but the tool tips are handled differently. Example: jsfiddle.net/jlbriggs/c1o8Lwgv
I'm new to coding, and creating a line chart that is very simple.
What's not simple is, I want to have an image in each tooltip. I figured out how to have the same image in each tool tip, but I want a different image for each data point on the line. It doesn't need to change when I change the data, and the image has to be connected to the point on the line, and not just the value (for example day 3 might have a value of 10 and day 12 might also).
Has anyone done this, or does anyone have any ideas?
I'm looking for a way to indicate key dates on a highchart with a label eg Public Holiday. I can't find a way to add labeled guidelines or add an opened callout to a point? Help appreciated.
In Highstock you have series type called flags which is a opened callout (similar to Dygraphs annotation). This is probably the closest fit to the indicators you referred. See this JSFiddle example of how it looks. Note how this example uses the Highstock source file, but builds a Highcharts chart. See this documentation for official information.
In Highcharts you can highlight points, labels and value in a wide variety of ways. First of you can add data labels to your points, which renders text next to it. Secondly you can use plot lines to highlight certain values along an axis. See this JSFiddle example of how both of these options can be used.
Of course there are lots of ways to improve and build upon this out of the box functionality, but that is up to your specific demands and desires.
I am using the TeeChart VCL Delphi module. I am trying to plot a candlestick chart. I have the following questions:
When I run the code it shows me the last date data on the right hand side. However, the y-axis is not automatically scaling at all. If I scroll backwards, it automatically adjust the y-axis scales. However, if I go far to the right which is the end, it does not auto-scale the y-axis anymore. What am I doing wrong?
The x-axis is the days of the week. However, I have no data for the weekend. It shows as empty space. How do I remove that?
How do you change the cursor so it shows the date/time for the X,Y you choose?
When I run the code it shows me the last date data on the right hand
side. However, the y-axis is not automatically scaling at all. If I
scroll backwards, it automatically adjust the y-axis scales. However,
if I go far to the right which is the end, it does not auto-scale the
y-axis anymore. What am I doing wrong?
What about setting the Y axis (left axis) to be automatic? For example:
Chart1.Axes.Left.Automatic:=True;
A more drastic solution would be also forcing the chart to repaint after adding each point.
Series1.Add(value);
Chart1.Draw;
If any of that helps please send us a simple example project we can run "as-is" to reproduce the problem here. You can attach your files here.
The x-axis is the days of the week. However, I have no data for the
weekend. It shows as empty space. How do I remove that?
You should do as in the All Features\Welcome!\Chart Styles\Financial\Candle (OHLC)\Axis Labels no Weekends example in the new features demo. This demo is included with registered and evaluation versions. Otherwise you can download it here.
How do you change the cursor so it shows the date/time for the X,Y you
choose?
There are two examples in the demo that can help you on this:
All Features\Welcome!\Tools\Annotation\Annotation Callout
All Features\Welcome!\Tools\Cursor\Synchronizing Two