1 Introduction............................................................................................5
1.1 Objectives.......................................................................................................................5
1.2 Prerequisites..................................................................................................................5
1.3 Course Structure............................................................................................................5
1.4 Duration..........................................................................................................................5
1.5 Using this guide.............................................................................................................6
1.6 Overview.........................................................................................................................7
1.7 The Graphical User Interface.........................................................................................8
1.8 Tool bars.........................................................................................................................9
2 The basics............................................................................................11
2.1 Opening an existing project........................................................................................11
2.1.1 Opening multiple projects........................................................................................ 11
2.2 Closing a project..........................................................................................................12
2.3 Opening a new project.................................................................................................12
2.4 Saving a project...........................................................................................................12
2.4.1 Renaming a project................................................................................................. 13
2.5 Viewing a model...........................................................................................................13
2.5.1 Interactive view rotation........................................................................................... 13
2.5.2 View options............................................................................................................ 14
2.5.3 Creating a new graphics window............................................................................. 17
2.6 Zooming and Panning..................................................................................................17
2.6.1 Interactive zooming................................................................................................. 17
2.6.2 Area zoom............................................................................................................... 17
2.6.3 Interactive panning.................................................................................................. 17
2.6.4 Reset the default window........................................................................................ 17
2.7 Project tree...................................................................................................................18
2.7.1 Full tree view........................................................................................................... 18
2.8 Undo and Redo............................................................................................................18
2.9 Conventions.................................................................................................................19
2.9.1 Axes........................................................................................................................ 19
2.9.2 Units........................................................................................................................ 20
Exercise 1...................................................................................................21
3 Primitives..............................................................................................23
3.1 Creating 3D Primitives.................................................................................................23
3.2 Boolean operations......................................................................................................26
3.3 Transformations...........................................................................................................28
Exercise 2...................................................................................................31
3.4 Creating and manipulating 2D Primitives...................................................................32
3.4.1 Working coordinate system (wcs)............................................................................ 32
3.4.2 2D Primitives (Clines).............................................................................................. 32
3.4.3 Manipulating Clines................................................................................................. 35
3.4.4 Generalised Surfaces.............................................................................................. 36
3.4.5 Extruded surface..................................................................................................... 40
3.4.6 Manipulation of Generalised Surfaces..................................................................... 42
Exercise 3...................................................................................................45
4 Blending................................................................................................49
4.1 Blend Terminology.......................................................................................................49
4.2 Blend Construction Techniques.................................................................................51
4.2.1 Mitred Blend............................................................................................................ 51
4.2.2 Single Blend............................................................................................................ 51
.2.3 Vertex Blend ........................................................................................................... 52
4.2.4 Complex Blend Network.......................................................................................... 53
Exercise 4...................................................................................................54
5 Outputs.................................................................................................59
5.1 Orthogonal Curves.......................................................................................................59
5.2 3D Curves.....................................................................................................................59
5.3 Plotting.........................................................................................................................60
5.3.1 Media tab................................................................................................................ 61
5.3.2 Position tab............................................................................................................. 61
5.3.3 Display tab.............................................................................................................. 62
5.4 Offset tables.................................................................................................................63
5.4.1 Crossings tab.......................................................................................................... 63
5.4.2 Format Tab............................................................................................................. 64
5.4.3 Partial example of a report format offset table......................................................... 64
5.4.4 Partial example of a text file format offset table....................................................... 66
Exercise 5...................................................................................................68
1 Introduction
This course is intended to introduce the user to the Surface module of Tribon Initial Design.
Surface is a surface/solid modeller based on nurbs surfaces and 2D and 3D primitives. These can be used to rapidly create appendages such as bow thrusters anchor pockets etc, that are required in the final production.
Surface can also be used to create geometric marine structures such as semi-submersibles etc.