Geometry, Surfaces, Curves, Polyhedra

The following is a random collection of various topics in geometry the author has explored or simply documented over the years. Many of the topics include source code illustrating how to solve various geometric problems, or to assist others recreating the geometric forms presented. Notes on polygons and meshes Includes Surface (polygon) simplification, Clipping a polygonal facet with an arbitrary plane, Surface Relaxation and Smoothing of polygonal data, Mesh crumpling, splitting polygons, two sided facets, polygon types, tests for clockwise and concavity, clipping line to polygons, area of a 3D polygon, area of general polygons, determining inside/outside test, intersection of a line and a facet, Eulers numbers. Notes on points, lines and planes Includes calculations for the distance between points, lines and planes. Notes on circles, cylinders and spheres Includes equations and terminology. The most important thing in the programming language is the name. Texture library Other ...

Grasshopper::Lists, Paths, and Trees G03 Due: April 24 at the start of class Spider-webs and Doilies Manipulating Grasshopper data-trees is hard, even when you understand the concept. This exercise is intended to allow a many "right" answers to be established, from relatively simple to more complex. See how far you can go with it. There is no starting-point file for this -- just open a blank Rhino and Grasshoper file and start in! WebPlatform.org — Your Web, documented GRAFICA Obscura DotNet Koans | Cory Foy by Cory Foy on December 20, 2009 For quite a while now, if you want to learn Ruby, you have the Pickaxe book, Why’s guide, and the fabulous Edgecase Ruby Koans on GitHub. The Koans are especially interesting because all you really need to do is setup a working environment and go. It tells you what you need to do next, by way of running the tests and seeing what passes. I thought to myself, why the heck don’t we have something like that for other languages? The goal of the project is to eventually have a guide for C#, F#, and VB.NET – likely in that order. My goal right now is to get everything ported over pretty much as-is, and then look at making sure this fits a good progression. The project is now public up on GitHub at – feel free to download it, play with it, and contribute (or critique) if you’d like.

Fluid Polygons and Polyhedra Figure 1. Figure 2. Figure 3. When a vertical water jet strikes a circular horizontal impactor, the water is deflected into a horizontal sheet. This series of photos appears in Buckingham & Bush (2001, Phys. [Home] - [Research Interests] - [Fluid Polygons] VBScript Microsoft Visual Basic Scripting Edition brings active scripting to a wide variety of environments, including Web client scripting in Microsoft Internet Explorer and Web server scripting in Microsoft Internet Information Service If you already know Visual Basic or Visual Basic for Applications (VBA), VBScript will be very familiar. The basic concepts of VBScript are common to most programming languages. VBScript talks to host applications using Windows Script. With Windows Script, browsers and other host applications do not require special integration code for each scripting component. Windows Script enables a host to compile scripts, obtain and call entry points, and manage the namespace available to the developer. As a developer, you can license VBScript source implementation at no charge for use in your products. The following sections explain how to use Visual Basic Scripting Edition (VBScript) and provide details about its language elements.

Grid Paper PDFs Downloadable and very printable, I find these PDFs extremely useful. Graph Paper Quick Picks Now set to: 8 1/2 x 11 Paper. Ruled in Inches. Now set to: A4 Paper, Ruled in Millimeters. Custom Graph Papers Need more specific stuff? Tip number one! Though I do return the correct header for a PDF, sometimes Explorer gets confused when downloading... Tip number two! Some people may need to turn off the option in Adobe's Acrobat reader "shrink to fit" which may resize the grid slightly to fit your printer's printable area. Tip number three! If you want the hexes aligned with the other edge of the paper, just make your paper size "11 x 8.5" and print the result in landscape mode! Translations Belorussian (provided by Ucallweconn weblog) Other