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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:

Union Tank Car Dome (Demonstration).
Eden Project Dome (Demonstration).

Downloads have moved to the new website:

www.neolithicsphere.com

New documentation is in progress; the old documentaion will remain here until June/July 2018.

Readme
Release notes
Development Status


YouTube Demos

Examples available at the YouTube channel home page.

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MAIN TOOLBAR

Toolbar

Shows each tool on the toolbar.


ATTRIBUTES WINDOW

Attrubutes

Elements colours, line widths, visibility etc.


PREFERENCES WINDOW

Colours

Setting the Colour Mode


PPT MODE

Subdivision Classes

The PPT. Class I and Class II Subdivisions.

Breakdown Methods

Methods 1, 2 & 3.

Symmetry Maps

Accessing the symmetry of the system.

Symmetry Table

Another way to access the symmetry of the system.


SELECT TAB

Area Select Tool

Selects vertices or cells.


ANALYSE TAB

Analyse Tab

Overview of Isolate system.

Isolate Unique Struts

Identify and log unique struts.

Isolate Unique Hubs

Identify and log unique hubs.

Isolate Unique Cells

Identify and log unique cells.

Unique Sets Precision

Adjusting precision to change the unique set.

Logging Options

Log output switches and the “Look At” feature.

Connectivity Logging for SFX

Instructions with Log Output

Analyse Dihedral

Measure dihedral at an edge.

Analyse Hub

Measuring angles at a vertex.

Measuring Tips

Measuring small dimensions.


ISOLATE TABS for SFX

Isolate Tabs

Overview of Isolate system for SFX.


MODIFY TAB

Kill Vertex Tool

Deletes a vertex in the quad-edge lattice.

Collapse Edge Tool

Collapses an edge in the quad-edge lattice.

Kill Edge Tool

Deletes an edge in the quad-edge lattice.

Make Edge Tool

Creates a new edge in the quad-edge lattice.

Divide Edge Tool

Inserts new vertices along an edge.

Truncate Vertex Tool

Creates a new face at a vertex.

Split & Bevel Tool

Splits and bevels the quad-edge lattice.

Stellate Tool

Stellates facets by value or to envelope.

Extrude Tool

Extrudes facets by specified value.

Cupola Tool

Creates roof lantern windows.


MODIFY MENU

Make Trifans

Trifans cells about their centroid.

Smooth

Create Eden Dome inner manifolds and more.

Truncate

Truncating the quad-edge lattice.

Building the Dual

All about the dual.


ENVELOPES WINDOW

Envelopes

Adjusting primal and dual envelopes.

Micro Trifan Weighted Average Normals

New hub normal code for Geodesica 0-9-0-0.

Theta Distribution Curves

Distributing hubs to account for load.


STRUTS WINDOW

Struts

Setting strut properties

Strut and Hub Intersections

Controlling intersection behavior

Strut and Hub Intersections 2

More strut and hub interections.

Intersection Errors

Intersection Errors and How to Fix Them

Omit truncation plane

Eliminating struts on the truncation plane

Compound Mitres

Cutting angles for the compound mitre saw.


Face struts

Face type struts are only intended for convex polygonal faces. If you make a concave polygonal face with the modelling tools, use the 'Make Face Edge' tool to divide the face into convex regions before generating struts.

Tetragon Simple Mitre

Tetragon Spline Mitre

Tetragon Butt Mitre

Tetragon


Edge struts

Examples are only given for solid struts.

Cylinder (solid)

Cylinder (hollow)

Rectangle (solid)

Rectangle (hollow)

Square (solid)

Square (hollow)

Diamond Square (solid)

Diamond Square (hollow)

Ellipse (solid)

Triangle (solid)

Polygon (solid)

Depth offset


HUBS WINDOW

Hubs

Setting hub properties

Hub Context Menu

Controlling Hubs on a per vertex basis


PLAN WINDOW

Plans

Generate engineering drawings to scale.


TARGET MENU

Targets

Setting the Target Lattice.

Example 1

Dual Trifan Stellation with Spaceframe

Example 2

Union Tank Car Dome type Spaceframe

Example 3

Eden Project Dome type Spaceframe

Example 4

How to Smooth a Truncated Primal Manifold

Exotic Spaceframes

A Swap Dual Example.


SPACEFRAME MENU

Spaceframes

Spaceframe menu operations.


Common

Viewports

Selecting a viewport configuration.

Frustums

Set camera frustum.

Fog

Setting a fog depth cue.

Lights

Adjusting the lights.

Navigator

Moving around the scene.


EXPORT

DXF

Export layers, single mesh or individual cells.

DXF for SFX

Updated Export options for SFX.

OBJ

Decimation and group options.

VRML

Indexed face set for groups, cells, or entire mesh.

POV

Creates an INC file for use in POV-Ray™


Support

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Geodesica-0-8-8-0b is still available on Sourceforge