Re: [flexcoders] Creating a Chart With 50,000 Data Points
either sample the data set and draw for example 1 point for every 5 or 10 or x , or use some sliders and display only parts of the data set On Tue, Nov 18, 2008 at 5:04 AM, Mark Easton [EMAIL PROTECTED] wrote: Hi, It appears that Flex Charts cannot handle generating charts with large DataSets. We tried with 50,000 data points and it thrashed away without producing a result after 6 minutes. It was able to plot 2,000 points in about 25 seconds. What is the recommended approach for creating charts from large data sets. The best I can think of is to write some code that will reduce the data set in size yet still provide enough data to represent the graph accurately. Thoughts? Ta. Mark -- Fotis Chatzinikos, Ph.D. Founder, Phinnovation [EMAIL PROTECTED],
Re: [flexcoders] Creating a Chart With 50,000 Data Points
Mark Easton wrote: It appears that Flex Charts cannot handle generating charts with large DataSets. We tried with 50,000 data points and it thrashed away without producing a result after 6 minutes. It was able to plot 2,000 points in about 25 seconds. What is the recommended approach for creating charts from large data sets. The best I can think of is to write some code that will reduce the data set in size yet still provide enough data to represent the graph accurately. Thoughts? LoD. Large scale datasets can work the same way computer graphics do. Users don't normally need to see every data point when a summary will do. Provide the user with the minimal amount of information necessary to understand what the data is saying and let them use the interface to drill down into specific areas. This works really well if you pre-calculate and cache the results on the backend (and predictive caching on the front doesn't hurt either). -Ricky
[flexcoders] Creating a Chart With 50,000 Data Points
Hi, It appears that Flex Charts cannot handle generating charts with large DataSets. We tried with 50,000 data points and it thrashed away without producing a result after 6 minutes. It was able to plot 2,000 points in about 25 seconds. What is the recommended approach for creating charts from large data sets. The best I can think of is to write some code that will reduce the data set in size yet still provide enough data to represent the graph accurately. Thoughts? Ta. Mark
