FlowFuse
chart-UI graphing error if X-Axis data point limit > 50% of available data points
Current Behavior
Charts appear to have a straight line joining the first and last datapoints if the X Axis limit value for points is more than half of the available points.
Graph above with database query returning 100 data points, and the X Axis limit set to 2 Days or 51 points.
Graph above with database query returning 100 data points, and the X Axis limit set to 2 Days or 50 points.
Graph above with database query returning 3200 data points, and the X Axis limit set to 2 Days or 1601 points.
Graph above with database query returning 3200 data points, and the X Axis limit set to 2 Days or 1600 points.
Expected Behavior
Chart should not have a straight line joining the first and last datapoints unless there are only 2 datapoints.
Steps To Reproduce
Write a query to generate some data from a database, in that query apply a limit of any figure. On the chart X axis limit, set the Or number of datapoints to be (the query limit/2) +1 OR any point limit of more than half of the datapoints available
eg
Graph above with database query returning 100 data points, and the X Axis limit set to 2 Days or 51 points.
Graph above with database query returning 100 data points, and the X Axis limit set to 2 Days or 50 points.
Graph above with database query returning 3200 data points, and the X Axis limit set to 2 Days or 1601 points.
Graph above with database query returning 3200 data points, and the X Axis limit set to 2 Days or 1600 points.
Environment
- Dashboard version:2.0 (1.16)
- Node-RED version:4.02
- Node.js version: v20.17.0
- npm version:10.8.2
- Platform/OS: Linux/Debian
- Browser: Firefox
Have you provided an initial effort estimate for this issue?
I have provided an initial effort estimate
