问题
I would like to plot the locus of a particle in two dimensional space.
My data is a sequence of X,Y coordinates and I would like to plot these.
Would appreciate any pointers to examples that show how to do this.
An example of a locus plot can be seen below:
Note: I'd like to show the path as a continuous line with arrows showing the direction of motion.
Thanks.
回答1:
ChartFactory.createScatterPlot(), illustrated here, might be a good starting point.
FastScatterPlot, cited here and illustrated here, may be required for larger datasets.
Addendum: Looking at your revised question, I've not seen a renderer like that. You might look at a org.jfree.chart.annotations such as XYShapeAnnotation using a GeneralPath. These ArcTest variations may offer guidance. See also PointyThing.
来源：https://stackoverflow.com/questions/15856325/plotting-a-locus-in-xy-space-using-jfreechart