Geodesica-SFX is an OpenGL geodesic modeller that implements cross-target quad-edge lattices. The program can construct a variety of advanced spaceframes, such as the Eden Project Dome and the Union Tank Car Dome.
Download
The latest releases can be found on the Geodesica-SFX Download page.
Documentation
New documentation in progress; the following pages refer to the development version of Geodesica-SFX and may differ slightly from the release version.
YouTube Channel
Here you can find demonstrations on how to use the program:
BASIC PRINCIPLES
Spherical Geometry Primer
- Geodesic Lines
- Lunes
- Spherical Triangles
- Area of a Spherical Triangle
- Equilateral Spherical Triangles
- Spherical Trigonometry
- Spherical Coordinates
Great Circle Systems
Geodesic Subdivision
Symmetria Mirabilis
INTERFACE
The following shows the main UI components; their use is discussed under ‘OPERATION’.
- Main Window
- Toolbar
- Menus
- Attributes Window
- Log Window
- Navigator Window
- Plan Window
- Symmetry Map Window
- Envelopes Window
- Range Adjust / Truncate Window
- Make Trifans Window
- Lights Window
- Viewports Window
- Fog Window
- Struts and Hubs Window
OPERATION
Target Mechanism
- Target Mechanism Overview Demonstrations
- Union Tank Car Dome Demonstration
- Eden Project Dome Demonstration
- Saint Louis Refrigerator Car Dome Demonstration
- Exotic Spaceframes Demonstration
Isolate Mechanism
- Isolate Mechanism Overview Quad-Edge Manifiold
-
Mesh Superimpositions
- Isolate Strut
- Isolate Panel
- Isolate Hub
Range Adjust / Truncate
Envelopes
- Envelope types
- Dual Offsets
- Theta Distribution Curves
Struts
- Struts Overview Face Struts
- Face Strut Tetragon Simple Mitre
- Face Strut Tetragon Spline Mitre
- Face Strut Tetragon Butt Mitre
- Face Strut Tetragon
- Edge Strut Cylinder (solid)
- Edge Strut Cylinder (hollow)
- Edge Strut Rectangle (solid)
- Edge Strut Rectangle (hollow)
- Edge Strut Square (solid)
- Edge Strut Square (hollow)
- Edge Strut Diamond Square (solid)
- Edge Strut Diamond Square (hollow)
- Edge Strut Ellipse (solid)
- Edge Strut Triangle (solid)
- Edge Strut Polygon (solid)
Hubs
- Hubs Overview Hub Generation
Strut and Hub Intersections
- Strut Dimension Options
- Strut and Hub Intersections Part 1 ORG and DEST Hub INTR
- Strut and Hub Intersections Part 2 Intersection Rules
- Strut and Hub Intersections Part 3 Star & Ring flange Hubs
- Strut and Hub Intersections Part 4 Handling Errors
- Omitting Struts on the Truncation Plane
- Compound Mitres
Preferences
Quad-Edge Data Structure
Export
- DXF
- OBJ