Overall
Polar Coordinate charts are used when you want to look at the pattern across several different properties, across a sequence or across time.
These charts are basically a line chart, but the value being plotted changes as it moves across the page/screen.
This allows you to see patterns in how values correspond to one-another, and is an excellent way to ensure your process is in-balance.
Example
In this example, we are looking at one of our rollers. These rollers have several measured properties that are all different, but all related to one-another. The actual speed tries to follow the target speed, while the current and voltage required to spin the roller needs to increase when speed does.
In this case, each line represents a different point in time. The infographic is set to break your time range into 200 distinct periods of time, and draw each of them as a line, fading from faint yellow to bright green as they get closer to the present.
Using the chart, you can see that the machine seems to be switching between two steady states – one higher/faster and one lower/slower.
You can find this example on our paint line demo site.
Tips and Tricks
- ARDIs Correlia tool helps to identify properties that are directly and indirectly related to one-another. This means it’s a great source of inspiration when choosing what to view on a polar coordinate chart.
See Also
We also have an example of this chart being used across a sequence.
See Others
Infographic visualisationsInteractive visualisations
Line visualisations
Parallel visualisations