The Streaming Mesh API library ( !SM API ) contains all the files/functions/modules for working with meshes of vertices and triangles. The Streaming Mesh Library consists ...
The Streaming Point API ( !SP API ) contains all the files/functions/modules for working with data stored as Point Clouds. The Streaming Point Library consists of ...
The Streaming Volume API library ( !SV API ) contains all the files/functions/modules for working with Volume Meshes consisting of Vertices, Tetrahedrons. Main.ShawnDB ...
Comparing shortest path methods Overview We will discuss the problem of finding the shortest path between two points on a terrain. Terrains can be represented in ...
Shortest paths results Results from expirment runs, in raw format Fast marching: spacing,cellsize/spacing,euclid,fmresult,start1,end1,start2,end2 1,160.0,5799.970295322554 ...
Sample Images These images show raster data from a DEM converted to a TIN. The choice of the direction for the diagonal inside grid squares is arbitrary. The first ...
Shortest Paths on a TIN Example of Sack and Lanthier's work: http://doi.acm.org/10.1145/262839.262984 See the images on this page of Mark Lanthier. ShortestPathComparison ...
TOC Calculating Shortest Paths Note: The interface to the shortest path computations have changed so and sm path are now the modules, but these remain the approaches ...
Shortest path algorithms and simplification We run the shortest path algorithms described in http://www.cs.unc.edu/~verma/shortest path.pdf on simplified meshes and ...
Note: This is not part of the Geo project, but topical. People At a Dagstuhl seminar in October 2003, Lars Kulik asked whether efficient line simplification could ...
TOC Simplex Splines Simplex splines generalize the familiar B-splines in one dimension. A k degree B-spline basis is defined for a set of k+2 points in R called knots ...
Site Tools of the TModeling Web INCLUDE{" TWIKIWEB .WebSiteTools"} Notes: INCLUDE{" TWIKIWEB .YouAreHere"} INCLUDE{" TWIKIWEB .SiteMap"} Main.HenryMcEuen 27 Jan ...
sl2sl Converts one streaming line format to another. It is particularly useful to create tilings of lines and produce KML files that can be displayed in google earth ...
sl viewer A simple OpenGL-based viewer for streaming lines. Example usage: sl viewer i ../data/armadillo40.slb Reads the streaming lines file and displays it every ...
slclean Removes small connected components from a streaming line file. Operates like a filter. slclean is designed to be used in piping mode (e.g. islb olsb). Example ...
Using Leonard's results and thoughts on TerrainRepsFromSVD, we can come up with some "compressed" representations of terrain by performing an off-line SVD for large ...
slsimp Reads streaming lines, and either removes all segments smaller than a given threshold (-length) or removes all "bumps" (i.e. a chain of two segments) whose ...
sm2sm Software that can compress meshes on-the-fly in whichever triangle order they happen to be in. It can do so in a completely lossless manner if that is really ...
SM PATH Computes shortest path between given source and target vertex. Dijkstra's method is used for finding approximate shortest path while !MMP method is used for ...
sm pathviewer A viewer for visualizing paths on a terrain. All flags and options are the same as sm viewer, except the "-path", "-zsplit", and "-zsub" commandline ...
sm viewer An !OpenGL-based viewer that allows you to look at a streaming mesh and also helps illustrating the "stream quality" of the mesh. First of all you can watch ...
smsimp Compresses a streaming mesh using decimation. It is an implementation of Garland and Heckbert's QuadraticErrorMetric, which fits into our PointSelectionFramework ...
smsimpall Compresses a streaming mesh using decimation. It is an implementation of Garland and Heckbert's QuadraticErrorMetric, which fits into our PointSelectionFramework ...
There are some prepackages sets of software with demo instructions from the Demos page, and documentation in the wiki for StreamingModules. SiftGPU is a GPU-based ...
sp2sp Used for converting between various streaming point file formats plus a little bit of ad hoc filtering operations as well. This program can read finalized or ...
sp viewer An !OpenGL viewer for visualizing files containing streaming point clouds. Performs simplification for fast rendering; to rerender the full model from a ...
spdelaunay2d A small but powerful tool that can turn billions of points into one gigantic and seamless terrain using very little main memory by streaming the Delaunay ...
spfilter Used for applying various transformations or filters to streaming point formats. This is based off the sp2sp tool. Example usage: spfilter i ottawa.spb o ...
spfinalize This spatial finalizer makes three passes over a point cloud. In the first pass it merely computes a bounding box. If this bounding box is known in advance ...
spground Classifies points as ground and non-ground, and can either (-groundonly) output ground points only, (-nongroundonly) output non-ground points only, or (default ...
TOC Ottawa Demo Preliminaries Goal We were given a 5x5 set of tiles of OttawaData, consisting of 905 megabytes of point cloud data captured by NEPTEC. The data is ...
Streaming Compression The idea of streaming meshes is to organize the data structure so that a large mesh can be accessed seamlessly by a fixed traversal while keeping ...
Pipelining streaming points, triangles, and lines 3DPVT submission by Martin Isenburg, Yuanxin (Leo) Liu, and Jack Snoeyink. This paper emphasizes the pipeline processing ...
TOC Here are our evolving thoughts on the evolution of the streaming file formats. Streaming File format changes Currently, spfinalize and sp2sp play some similar ...
Streaming Modules TOC Most of our software tools for large data sets are modules that can be composed with pipes in Windows or UNIX (including Mac and Linux). Click ...
TOC We process large point sets and meshes with StreamingModules. The documentation there has lots of example scripts for demos. This page will include some of the ...
Style Guide An overview of general guidelines to follow when writing our code to help figure out the underlying logical structure, improve consistency, readability ...
TOC Interpolatory subdivision surfaces One of the major mathematical developments in this project is Charles Chui and co-authors' work on Interpolatory SubdivisionSurfaces ...