Revision: 56215
http://sourceforge.net/p/brlcad/code/56215
Author: brlcad
Date: 2013-07-25 15:10:30 +0000 (Thu, 25 Jul 2013)
Log Message:
-----------
update the stand-alone projects listing. thoughts and plans are starting to
coalesce, so clarify some of the descriptions. probably start with BU or
BU+BN, docs, and benchmark.
Modified Paths:
--------------
brlcad/trunk/doc/PROJECTS
Modified: brlcad/trunk/doc/PROJECTS
===================================================================
--- brlcad/trunk/doc/PROJECTS 2013-07-25 15:06:51 UTC (rev 56214)
+++ brlcad/trunk/doc/PROJECTS 2013-07-25 15:10:30 UTC (rev 56215)
@@ -4,65 +4,25 @@
BRL-CAD is comprised of several projects that have specific
distinguishing qualities of utility that make them interesting
STAND-ALONE projects applicable to a generally WIDE AUDIENCE of users.
-In some cases, these projects may be independently maintained and are
-sometimes even independently distributed. In general, each of these
-common projects could exist solely as an independent project but they
-are included with BRL-CAD as part of the collective solid modeling and
-processing toolset. These projects are described below:
+These projects are described below:
-Geometry Modeling Kernel
- When combined together, several of the core libraries form
-BRL-CAD's geometry modeling kernel. This modeling kernel provides
-fundamental geometric representation, ray-trace analysis, and
-geometric processing capabilities via a high-performance procedural C
-API designed for multithreaded processing and fast ray-intersection
-evaluation. The geometry engine directly supports the representation
-and evaluation of implicit and explicit form primitive objects
-including arbitrary polyhedron, toroids, generalized conics,
-ellipsoids, NURBS, meshes, parabolics, hyperbolics, and more. Also
-supported are Constructive Solid Geometry (CSG) expressions, boundary
-representation (BREP) objects, 2D sketches, 3D extrusions, height
-fields, pipe/cabling construction, and more. The geometry modeling
-kernel is comprised of libbu, libbn, librt, libwdb, liboptical,
-libmultispectral, and the ray-trace interface application back-end.
+= Basic Utility and Numerics Libraries (BU+BN) =
-Network Package Library
- The libpkg Network Package Library (PKG) interface implements
-a client-server network connection that multiplexes synchronous and
-asynchronous messages across stream connections. PKG provides a
-simple interface for managing client/server connections in a
-distributed environment, providing a non-blocking interface that
-accepts arbitrary data messages of arbitrary length.
+BRL-CAD's LIBBU and LIBBN libraries provide an extensive set of
+fundamental general routines that form a common simple API for
+cross-platform application development. Some routines are
+unparalleled in terms of portability, performance, or simplicity.
+Others are more common and undeniably commonplace with alternatives
+such as the Apache Portable Runtime (APR). As a collective API, they
+form a solid basis for application development and would probably do
+very well in most academic contexts with proper documentation and
+examples to follow.
-MGED
- The Multiple-device Geometry EDitor (MGED) is an interactive
-solid modeler that provides a graphical user interface as well as a
-robust text-based command interface. MGED heavily utilizes
-Constructive Solid Geometry (CSG) solid modeling techniques for
-geometric construction and supports various display manager interfaces
-for extensive cross-platform support.
+= Benchmark Suite =
-Archer
- Containing the majority of the command functionality provided
-by MGED, Archer is a new GUI-based solid model viewer and editing
-tool. Archer is based on MGED in many respects while providing an
-improved GUI.
-
-ADRT
- The Advanced Distributed Ray-Tracer (ADRT) includes a high
-performance triangle intersection engine (libtie), a real-time
-ray-tracer (ISST), and a path-tracer for realistic image synthesis
-(RISE). ADRT deals only with a triangle mesh representation,
-providing a high-performance triangle-ray evaluation engine that
-leverages much computer graphics research on maintaining ray coherency
-and fast KD-Tree traversal. In all, the system is capable of
-evaluation several million rays per second allowing for real-time
-interactive ray-tracing of faceted models.
-
-Benchmark Suite
- The BRL-CAD Benchmark Suite is a system performance analysis
-benchmark that tests the performance of a given system's CPU, memory,
-cache coherency, kernel context switching, and compiler optimization
+The BRL-CAD Benchmark Suite is a system performance analysis benchmark
+that tests the performance of a given system's CPU, memory, cache
+coherency, kernel context switching, and compiler optimization
capabilities. The benchmark provides a linearly comparable metric of
overall system performance that may be used to quantitatively evaluate
the relative performance of a given system, particular compilers,
@@ -71,80 +31,111 @@
ray-tracing, providing a reliable metric of actual system performance
that may be compared across more than two decades of computing.
-Image Processing Tools
- There are many image converters (e.g. pix-*, bw-*, *-pix,
-*-bw, pix*, bw*), image processing, and image manipulation tools in
-the package that provide basic image management. The processing tools
-support several common formats including PNG, RLE, PPM, PS, and SUN
-images as well as a variety of image processing tools that work on raw
-image data.
+= Geometry Conversion (GCV) =
-Signal processing
- There are a variety of signal processing utilities (e.g. *mod,
-ifft, dfft, s-i, i-d, cv, wavelet) in the package that categorically
+Included are a variety of importers and exporters for various geometry
+file formats (e.g. g-* and *-g). Exporters include DXF, EUCLID, NFF,
+OBJ, STL, TANKILL, VRML, X3D, and OpenGL vertex array buffers.
+Importers include CY, DXF, ENF, EUCLID, FAST4, NASTRAN, PLY, STL,
+TANKILL, and VIEWPOINT. BRL-CAD also provides a Unigraphics/NX
+exporter application as well as a Pro/Engineer export plug-in. This
+includes LIBGCV.
+
+= Image Conversion (ICV) =
+
+There are many image converters (e.g. pix-*, bw-*, *-pix, *-bw, pix*,
+bw*), image processing, and image manipulation tools in the package
+that provide basic image management. The processing tools support
+several common formats including PNG, RLE, PPM, PS, and SUN images as
+well as a variety of image processing tools that work on raw image
+data. This includes LIBICV.
+
+There are a variety of signal processing utilities (e.g. *mod, ifft,
+dfft, s-i, i-d, cv, wavelet) in the package that categorically
manipulate raw data streams according to specified criteria. These
manipulations include data conversion and filtering capabilities as
well as various transformations including discrete and non-discrete
-Fast Fourier transforms (FFT) and wavelet decomposition.
+Fast Fourier transforms (FFT) and wavelet decomposition. It may make
+sense to merge this capability into ICV.
-Geometry converters
- Included are a variety of importers and exporters for various
-geometry file formats (e.g. g-* and *-g). Exporters include DXF,
-EUCLID, NFF, OBJ, STL, TANKILL, VRML, X3D, and OpenGL vertex array
-buffers. Importers include CY, DXF, ENF, EUCLID, FAST4, NASTRAN, PLY,
-STL, TANKILL, and VIEWPOINT. BRL-CAD also provides a Unigraphics/NX
-exporter application as well as a Pro/Engineer export plug-in.
+= Network Package Library =
-Raytracers
- Included are a variety of ray-tracers for analyzing geometry
-for either visualization or geometric purposes. This includes the
-"rt" ray-tracer, the "rtedge" and "rthide" hidden-line edge
-ray-tracers, "rtarea" for computing exposed and presented surface
-areas, "rtshot" for single-query ray analysis, the "rtxray" X-Ray
-transport ray-tracer, the "nirt" interactive ray-evaluation
-ray-tracer, the "lgt" interactive shaded image ray-tracer, as well as
-"rtweight" and "g_qa" for computing mass, volume,
-overlaps/interferences, and more.
+The libpkg Network Package Library (PKG) interface implements a
+client-server network connection that multiplexes synchronous and
+asynchronous messages across stream connections. PKG provides a
+simple interface for managing client/server connections in a
+distributed environment, providing a non-blocking interface that
+accepts arbitrary data messages of arbitrary length.
-ttcp
- The "Test Transmission Control Protocol" tool is a network
-throughput performance benchmark tool used to evaluate the performance
-of TCP and UDP network connections. TTCP may also be used as an
-excellent tool for bootstrapping hosts onto the network by forming a
-communication pipe between two machines. This communication pipe may
-be used to transfer files to a remote system that does not otherwise
-have a means available to receive files as well as for the evaluation
-of raw throughput performance of the network connection between the
-two systems. TTCP includes support for sourcing to/from memory,
-variable packet sizes, and loading metrics. TTCP is described as a
-standard testing tool for TCP implementors via Network Working Group
-RFC 2398.
+= ttcp =
-JOVE
- "Jonathan's Own Version [of] Emacs" (JOVE) is a simple
-lightweight Emacs-like text editor. JOVE provides common Emacs
-keyboard bindings as well as an assortment of useful editing features
-including interactive shell windows and language-specific modes while
-using minimal CPU, memory, and disk requirements comparable to the vi
-editor.
+The "Test Transmission Control Protocol" tool is a network throughput
+performance benchmark tool used to evaluate the performance of TCP and
+UDP network connections. TTCP may also be used as an excellent tool
+for bootstrapping hosts onto the network by forming a communication
+pipe between two machines. This communication pipe may be used to
+transfer files to a remote system that does not otherwise have a means
+available to receive files as well as for the evaluation of raw
+throughput performance of the network connection between the two
+systems. TTCP includes support for sourcing to/from memory, variable
+packet sizes, and loading metrics. TTCP is described as a standard
+testing tool for TCP implementors via Network Working Group RFC 2398.
-Example Geometry
- BRL-CAD geometry database files are platform independent files
-that are used to store solid geometry models. There are several
-example database models that have been made openly available (db/*.g)
-that cover a wide range of example solid model geometry including
-basic parts, buildings, procedural geometry, and military vehicles.
+= Geometry Modeling Kernel =
-Documentation
- Over the years, extensive documentation has been written for
-BRL-CAD including many manual pages, quick reference sheets, and a
-detailed tutorial series. The tutorial series covers an introduction
-to the package, details on the modeling philosophies, an introduction
-to the MGED solid modeler, a more advanced geometry modeling
-techniques guide, and provides principles of effective modeling. The
-tutorials take a user through many guided exercises that build upon
-each other working towards more complex exercise examples the show
-some of the basic modeling and processing capabilities possible.
+This product does not yet exist but is a long term goal. It's
+basically several of the core libraries form BRL-CAD's geometry
+modeling kernel including the present libbu, libbn, librt, libwdb,
+liboptical, libmultispectral, and the ray-trace interface application
+back-end.
-Image Conversion Library
- Does not currently exist.
+This modeling kernel provides fundamental geometric representation,
+ray-trace analysis, and geometric processing capabilities via a
+high-performance procedural C API designed for multithreaded
+processing and fast ray-intersection evaluation.
+
+The geometry kernel directly supports the representation and
+evaluation of implicit and explicit form primitive objects including
+arbitrary polyhedron, toroids, generalized conics, ellipsoids, NURBS,
+meshes, parabolics, hyperbolics, and more. Also supported are
+Constructive Solid Geometry (CSG) expressions, boundary representation
+(BREP) objects, 2D sketches, 3D extrusions, height fields,
+pipe/cabling construction, and more.
+
+= Geometry Engine =
+
+This is a C++ geometry kernel API. This product is intentionally in a
+separate repository so that it's conceptually and technically
+implemented on top of BRL-CAD's core libraries. The design intent is
+similar to the ACIS, Granite, and Parasolid geometry modeling APIs.
+
+= Geometry Service =
+
+This is a geometry management network service. It's a geometry server
+with a socket protocol interface that provides user access controls,
+versioning, and edit history tracking. At it's core, application
+developers connect to the service for storing and obtaining geometry.
+The service supports an extended set of geometry queries. This
+product is similar in design to other network/socket services such as
+Apache and MySQL.
+
+= Example Geometry =
+
+BRL-CAD geometry database files are platform independent files that
+are used to store solid geometry models. There are several example
+database models that have been made openly available (db/*.g) that
+cover a wide range of example solid model geometry including basic
+parts, buildings, procedural geometry, and military vehicles.
+
+= Documentation =
+
+Over the years, extensive documentation has been written for BRL-CAD
+including many manual pages, quick reference sheets, and a detailed
+tutorial series. The tutorial series covers an introduction to the
+package, details on the modeling philosophies, an introduction to the
+MGED solid modeler, a more advanced geometry modeling techniques
+guide, and provides principles of effective modeling. The tutorials
+take a user through many guided exercises that build upon each other
+working towards more complex exercise examples the show some of the
+basic modeling and processing capabilities possible.
+
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