From: Gordon L. K. <gl...@uc...> - 2011-05-18 08:23:59
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Hello, Is anyone still actively using the qbert program? I'm trying to clear up some cruft from Teem with an eye towards another (long-overdue) release, and would like input what programs can be removed from our (c)make files. Qbert (as opposed to <http://en.wikipedia.org/wiki/Q*bert>) started in 2002 as a way to generate 3-channel "vgh" volumes (from scalar volumes), containing the value, grad mag, and 2nd directional derivative along the gradient, when GPU-based volume renderers benefitted from that stuff being pre-computed; this was joint work with Joe Kniss. Since then GPU-based volume renderers have learned to compute what they need on the fly. Also possibly cruft-like: ungantry: does resampling of CT volumes to remove gantry tilt spots: computes Turing-style reaction-diffusion textures in 2D and 3D pprobe: use gage to probe at a point, but functionality included in gprobe emap: creates environment maps via limn's "checker" normal quantization cubic: solves cubic polynomials The pos2idx and idx2pos programs are certainly cruft; they are utilities for converting between (1-D) world and index coordinates with knowledge of either cell-centered or node-centered sampling. I actually still need these utilities, but it would be better to stuff them into unu commands than have these separate binaries. Gordon |