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CVXMOD is a Python-based tool for expressing and solving convex optimization problems. It uses CVXOPT as its solver. It is developed by Jacob Mattingley, as PhD work under Stephen Boyd at Stanford University. CVXMOD is primarily a modeling layer for CVXOPT. While it is possible to use CVXOPT directly, CVXMOD makes it faster and easier to build and solve problems. Advanced users who want to see or manipulate how their problems are being solved should consider using CVXOPT directly. Additional features are being added to CVXMOD beyond just modeling. These are currently experimental. CVXMOD has a similar design philosophy to CVX, a convex optimization modeling language for Matlab®, and uses the principles of disciplined convex programming, as developed by Michael Grant, Stephen Boyd and Yinyu Ye.
Freyja 3d is a modeler and animator focusing on low polygon game content with wide range of model import/export plugins. Freyja has some unique features such as Lua macros, tools for reverse engineering, and use of GLSL shaders while editing. Currently su
NetLogo is a cross-platform multi-agent programmable modeling environment. NetLogo was authored by Uri Wilensky in 1999 and is under continuous development at the CCL (the people who brought you StarLogoT).
DBDesigner 4 is a visual database design system that integrates database design, modeling, creation and maintenance into a single, seamless environment.
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]]>Misfit Model 3D is an OpenGL-based 3D model editor that works with triangle-based models. It supports multi-level undo, skeletal animations, simple texturing, scripting, command-line batch processing, and a plugin system for adding new model and image fil
Менеджер проектов и проектировщик пользовательских интерфейсов. Специализация на веб-разработках — веб-приложениях, интернет- и интранет-системах, порталах и, периодически, средней руки сайтах.
Though the Chevy tutorial is dated by current Cinema 4D standards, portions of it remain somewhat viable. On the other hand, many plugins available since version 8 was released make much of this tutorial extraneous. Some of the techniques it teaches, I no longer even use myself (and cannot wholly recommend that anyone else learn to model this way!) - especially when the current release of C4D (v9 ) has included many many more modeling features not covered here, which only make this method more cumbersome.
modeling - animation - Lighting - Materials/Textures - Effects - Rendering
Relational databases are universally conceived of as an advance over their predecessors network and hierarchical models. Superior in every querying respect, they turned out to be surprisingly incomplete when modeling transitive dependencies. Almost every couple of months a question about how to model a tree in the database pops up at the comp.database.theory newsgroup. In this article I'll investigate two out of four well known approaches to accomplishing this and show a connection between them. We'll discover a new method that could be considered as a "mix-in" between materialized path and nested sets.
First mail of a thread on the postgresql mailing list dealing of various ways to implement a tree structure with PostgreSQL.
This document describes an approach for handling hierarchical data in a relational database.