Articles
|
URI: |
http://herbert.gandraxa.com/herbert/art.asp |
|
Link template: |
<a href="http://herbert.gandraxa.com/herbert/art.asp">Articles</a> |
|
Link symbols: |
|
On current page |
On external site |
Wikipedia article |
ZIP archive |
PDF |
E-Mail
Table of Contents
Article
Organization
Home
» Articles
- This is an index file: entries see below.
Scope
This page is an index file, listing articles available from this site.
Author
Operating Systems
Linux from Scratch: An article series aiming at building from scratch and successfully running a Linux system with Web server on a virgin machine.
Isometric Design
Digital Terrain Analysis: An article series on how to obtain and render digital elevation models. This series is a work in progress: more comprehensive documents will be added as they are researched.
Design of Isometric Avatars: Another article series, this one showing techniques to design avatars for an isometric environment. This series is a work in progress as well: expect more articles in the near future.
Astronomy
Length of day: This article describes, how the length of day can be calculated for any given Northern latitude and any day of year. It also includes calculation of the twilight duration.
Logic
Draw Orthogonal Polygons: Shows, how to efficiently draw a filled orthogonal simple polygon drawn within a bounding rectangle, when it is expressed as a list of vertex coordinates.
Detect Overlapping Rectangles: This article derives a formula to quickly test, if any two rectangles sharing a common subrectangle anywhere in their parental rectangles can be overlaid to form a polygon with the shared subrectangle. Includes a formal algorithm and a two-line program code implementation.
Web
Tracking Last Visitors: Discusses the considerations in the design of a server-side web tool to track and display the geographical locations of a site's recent visitors.
