Archive for April, 2012

Friday, April 27th, 2012

Better line profiling output

I had to do a lot of line profiling (with the -l option to gprof) of some Fortran code recently and got tired of tracking through source code to find the lines that where causing problems. The line profiler gives very useful output that looks like (edited to remove some extra space): percent cumulative self […]

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Monday, April 23rd, 2012

OS X defaults

mathiasbynens has a great github repo of OS X commands to change various system defaults. Some of my favorites: # Disable menu bar transparency defaults write NSGlobalDomain AppleEnableMenuBarTransparency -bool false # Disable the warning when changing a file extension defaults write com.apple.finder FXEnableExtensionChangeWarning -bool false # Show the ~/Library folder chflags nohidden ~/Library This is […]

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Friday, April 20th, 2012

Connecting designers with scientists

Pathline is a visualization tool for genetic data created in collaboration between designers and geneticists: We recently attended an interdisciplinary visualization workshop that was all about creating a dialogue between scientists, technologists and designers. It was interesting to discuss the different ways in which these groups think about visualization and how they use it for […]

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Thursday, April 19th, 2012

Getting an OpenGL context from object graphics

Jason Ferrara, of Jacquette Engineering for Research, the creators of Slither, on getting an OpenGL context of an IDL object graphics window: IDL doesn’t provide any way to access or manage OpenGL contexts. IDL Object Graphics does use OpenGL to do its drawing though, so there must be valid OpenGL contexts floating around in there […]

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Thursday, April 19th, 2012

The switch from print to digital graphics

I’ve been catching up on Brian Hayes’ great “Computing Science” column in American Scientist. The last issue’s “Pixels or Perish” discusses the move to interactive graphics from static print graphics: Methods for producing scientific illustrations—and for reproducing them in publications—have been changing. Printing plates for figures were once engraved by hand, then made by a […]

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Wednesday, April 18th, 2012

NASA planetary data system challenges

NASA is hosting a series of challenges relating to pulling information from its collection of over 100 terabytes of data stored in its planetary data system (PDS): But, while rich in depth and breath, the PDS databases have developed in a disparate fashion over the years with different architectures and formats for different scientific needs; […]

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