I have created a single Bar Series which have around 2000 pts. After plotting the bar are seen with black color instead of the Series Color.
Try setting the Pen.Visible=false. The minimum size of the pen is 1 and having so many bars, it ends drawing the borders without space for the brushes.
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I have a chart that is rendering bars with a slight offset. See image below. The blue bars are negative values, and the black bars are positive values, with the horizontal line marker being a net value. Notice how the black bars start slightly behind the 0 axis line.
This only seems to occur when our brand font is being used (the default font seems to have no issues). The font has no letter-spacing or font-feature-settings properties set. Any ideas why this might be happening and how I can fix it?
I have a requirement to draw Core Plot horizontal bar chart with everything on the negative y-axis. I.e. the first index should appear at -1, like below:
I have figured out how to draw horizontal Bar Chart. But figuring out how to draw them in an "inverted" manner (to let user scroll downward with the tallest bar on top). My thought:
1) Convert the Y-index to negative
2) offset the Y-axis to the top of the graph instead of bottom
Is there any better way to do it?
I have found a historical article that's similar to my request (core-plot iOS reversed Y axis).
I have got what I needed after using this:
CPTPlotRange plotRangeWithLocation:CPTDecimalFromFloat(-yMax-1) length:CPTDecimalFromFloat(yMax)
P.S. you need to add the -1 to the Location parameter (-yMax-1) otherwise the horizontal bar at index 0 will not be shown clearly.
I need to display bar-chart diagram.
The main issue I've not found yet is how to display bars with sub-bars.
So the first bar consists of green bar (with 5 points for y) at bottom and yellow bar (with 3 points for y).
And the second bar consists of pink bar at bottom (with 3 points for y)
So my bars are not stacked. - I can have even no bars for next x, but I can have 3 sub-bars in one bar in different order.
Generally the following image shows what bars do I need.
Generally the following image shows what bars do I need.
Use a different bar plot for each fill pattern. Set barBasesVary to YES on each plot so you can control the ends of bars individually. The plot will query the datasource for three values for each bar: the location (the horizontal position for vertical bars), the tip (the top) value, and the base (the bottom) value. The "Vertical Bar Chart" demo in the Plot Gallery example app shows a simple example of this technique.
How to plot rectangular slices in a barchart ? The slice can be plotted anywhere. It should not start from xAxis.
This slice is actually pointing to a corresponding x and y value.The width of the slice remains same as the bars plotted in the barchart.The height is set a very small value to see it as a slice.
The Blue colored is bar chart's bar and brown colored is the slice.
Set barBasesVary to YES on the bar plot. This will cause the plot to query the datasource for an additional field called CPTBarPlotFieldBarBase. The base value defines one end of the bar and the tip value defines the other end. The location determines the horizontal placement (for vertical bars) as always.
Using highcharts, how would I put a default grey bar under my column charts, for example, like this?
And how would I do something similar for a pie chart (if my data takes up 30% of the chart, show the remaining 70% as light grey or something similar to denote unused space of the pie chart)
For the Pie chart there has been a bit of a back and forth in the highcharts forums. What I would do is get all of your data you need to plot and find out what percentage of the total all of that data is. Then, with the remaining percentage create another data point and set its color to grey.
But you really have to consider what is the total percentage means - without further detail I cannot begin to guess.
As for the first question about "default grey bar under my column charts" it is not clear from that link what you mean. I do not really see what you mean with the charts I have looked at.