Search found 4 matches

by kaifan
Fri Dec 20, 2019 1:04 am
Forum: JFreeChart
Topic: How to draw tens of thousands of data in seconds
Replies: 2
Views: 2642

Re: How to draw tens of thousands of data in seconds

yeah... That's my question. chartcomposite doesn't seem to be speed optimized for large amounts of data. I solved it using chartpanel and swt-awt.
thx to ur comment.
by kaifan
Thu Nov 28, 2019 1:19 am
Forum: JFreeChart
Topic: How to draw tens of thousands of data in seconds
Replies: 2
Views: 2642

How to draw tens of thousands of data in seconds

I need to load a file and display at least 15000 up to 25000 data in a chart. The java gui used is swt. I currently use XYLineAndShapeRenderer It takes about 10 seconds to open the file and load the data, and lagging occurs when you zoom in or resize the chart. There was a few thousand garbage data ...
by kaifan
Thu Nov 28, 2019 1:16 am
Forum: JFreeChart
Topic: How to draw tens of thousands of data in seconds
Replies: 0
Views: 4511

How to draw tens of thousands of data in seconds

I need to load a file and display at least 15000 up to 25000 data in a chart. The java gui used is swt. I currently use XYLineAndShapeRenderer It takes about 10 seconds to open the file and load the data, and lagging occurs when you zoom in or resize the chart. There was a few thousand garbage data ...
by kaifan
Wed Nov 27, 2019 10:03 am
Forum: JFreeChart
Topic: How to draw tens of thousands of data in seconds
Replies: 0
Views: 4398

How to draw tens of thousands of data in seconds

I need to load a file and display at least 15000 up to 25000 data in a chart. The java gui used is swt. I currently use XYLineAndShapeRenderer It takes about 10 seconds to open the file and load the data, and lagging occurs when you zoom in or resize the chart. There was a few thousand garbage data ...