Comments on: Hit detection on graphics primitives: Speeding up the Parallel Coordinates Plot http://michaelvandaniker.com/blog/2009/02/19/speeding-up-pcp-using-hit-detection-on-graphics-primitives/ Data Visualization Architect Thu, 26 Apr 2012 15:57:35 +0000 hourly 1 By: Alfred Inselberg http://michaelvandaniker.com/blog/2009/02/19/speeding-up-pcp-using-hit-detection-on-graphics-primitives/comment-page-1/#comment-4353 Alfred Inselberg Fri, 11 Dec 2009 13:49:23 +0000 http://michaelvandaniker.com/blog/?p=168#comment-4353 Parallel Coordinates - This book is about visualization, systematically incorporating the fantastic human pattern recognition into the problem-solving ... www.springer.com/math/cse/book/978-0-387-21507-5 Parallel Coordinates – This book is about visualization, systematically incorporating the fantastic human pattern recognition into the problem-solving …
http://www.springer.com/math/cse/book/978-0-387-21507-5

]]> By: Michael http://michaelvandaniker.com/blog/2009/02/19/speeding-up-pcp-using-hit-detection-on-graphics-primitives/comment-page-1/#comment-1128 Michael Fri, 22 May 2009 23:48:23 +0000 http://michaelvandaniker.com/blog/?p=168#comment-1128 @Thomas The Flash Player is really good at bitmap operations. Mapping screen positions to data values in either a hash or an array would most likely be much slower than relying on bitmap methods, and it would be tedious to correctly populate such a data structure. At 2880 x 2880, this method still performs very quickly. @Thomas The Flash Player is really good at bitmap operations. Mapping screen positions to data values in either a hash or an array would most likely be much slower than relying on bitmap methods, and it would be tedious to correctly populate such a data structure. At 2880 x 2880, this method still performs very quickly.

]]> By: Thomas Burleson http://michaelvandaniker.com/blog/2009/02/19/speeding-up-pcp-using-hit-detection-on-graphics-primitives/comment-page-1/#comment-1120 Thomas Burleson Tue, 19 May 2009 15:14:21 +0000 http://michaelvandaniker.com/blog/?p=168#comment-1120 Thank you for this great article. To summarize my understanding: you are using 4 screens of bitmaps and you are mapping clicks/mouse positions to offscreen bitmap intersections. Does this scale with large display areas? Why not map onscreen positions to the data model directly? And have one offscreen bitmap for difference rendering only? Thank you for this great article.

To summarize my understanding: you are using 4 screens of bitmaps and you are mapping clicks/mouse positions to offscreen bitmap intersections.

Does this scale with large display areas?
Why not map onscreen positions to the data model directly? And have one offscreen bitmap for difference rendering only?

]]> By: pp http://michaelvandaniker.com/blog/2009/02/19/speeding-up-pcp-using-hit-detection-on-graphics-primitives/comment-page-1/#comment-127 pp Thu, 26 Feb 2009 07:59:50 +0000 http://michaelvandaniker.com/blog/?p=168#comment-127 > Tom This technique is quite common and used often in game programmings. I see many flex/flash apps using this tech. > Tom

This technique is quite common and used often in game programmings.
I see many flex/flash apps using this tech.

]]> By: iq http://michaelvandaniker.com/blog/2009/02/19/speeding-up-pcp-using-hit-detection-on-graphics-primitives/comment-page-1/#comment-124 iq Sat, 21 Feb 2009 10:01:15 +0000 http://michaelvandaniker.com/blog/?p=168#comment-124 Excellent component..With the changes in performance, it's good for any major application. We appreciate the time you spend and the idea for this. Have you ever thought of making the node of the links bigger so when multiple lines intercept the size can be made bigger.. see the second diagram in the "sample pictures" in the below link http://secviz.org/content/applied-security-visualization/ thanks .iq Excellent component..With the changes in performance, it’s good for any major application. We appreciate the time you spend and the idea for this.

Have you ever thought of making the node of the links bigger so when multiple lines intercept the size can be made bigger..

see the second diagram in the “sample pictures” in the below link
http://secviz.org/content/applied-security-visualization/

thanks
.iq

]]> By: Michael http://michaelvandaniker.com/blog/2009/02/19/speeding-up-pcp-using-hit-detection-on-graphics-primitives/comment-page-1/#comment-122 Michael Fri, 20 Feb 2009 00:52:32 +0000 http://michaelvandaniker.com/blog/?p=168#comment-122 @Tom I actually saw <a href="http://www.cs.umd.edu/~kristw/" rel="nofollow">Krist</a> do something similar to this a while back, so I knew it could be pulled off. I'm glad this worked out as a proof of concept. Let's hope we see it in Degrafa some day soon. @Tom I actually saw Krist do something similar to this a while back, so I knew it could be pulled off. I’m glad this worked out as a proof of concept. Let’s hope we see it in Degrafa some day soon.

]]> By: Tom Gonzalez http://michaelvandaniker.com/blog/2009/02/19/speeding-up-pcp-using-hit-detection-on-graphics-primitives/comment-page-1/#comment-121 Tom Gonzalez Fri, 20 Feb 2009 00:07:09 +0000 http://michaelvandaniker.com/blog/?p=168#comment-121 what a brilliant idea :) what a brilliant idea :)

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