Computing Workshop 3D MODELING Part 2 - Derivatives, Revolution, Sweeps, Sections, Terrain Models, Meshes, Deformations, Rounding and Spheres

readings schedule help questions

QUESTIONS from Week 9


Form Z

Pick Options

• Pick Options (or double click on Pick Tool
• Picking Inside Boundaries (allows you to pick face with one click rather than two)
• Pre-Pick vs. Post-Pick

Reference Planes

• Reference Planes Palette
• Planes Palette
• Moving Planes
• Rotating Planes
• Define Plane
• Extending Planes
• Defining Arbitrary Reference Planes

Derivative Objects

• Derivatives Palette (6th Row of Modeling Tools)
• Derivative Extrusion
• Derivative Convergence
• Derivative 3D Enclosure
• Object of Revolution
• Status of Objects dialog box
• Ghosts - Ghosting & Unghosting
• Derivatives from Parts - from a point (error), from a segment, from a face
• Derivatives from Parts - angled faces
• Extrusion/Convergence Options
• Derivatives from Complete Objects - Perpendicular to Surface, Justification=left, right, center, Enclosure Wall Width
• Derivative 2D Tool - pulling apart boxes (no visible result, but now several entities)
• Parallel Derivatives - 2D, 3D, offsets, Innies & Outies

Objects of Revolution

• 6 types - all work best when source shape and axis of revolution are on the same plane
• Lathed Objects
  • a cup (ZX, grid on)
  • 225 degrees around axis vs. around a line
  • join adjacent co-planar faces - 2 wheels
• Helixes
• Helix along a line

Sweeps

• Axial Sweeps
• Two Source Sweeps
• Two Path Sweeps
• Boundary Sweeps
• Sweeps along faces of objects

Taking Sections

• 2D Sections
• 3D Sections
• Taking Contours

Terrain Models

Meshes

• Controlled Objects vs. Common Objects
• Meshes Palette (7th Row of the Modeling Palette)
• Controlled Curves - Adjust to New Parameters and Edit
• Controlled Meshes -
• Edit Meshes Tool
• Plain Meshes

Printing

• Print/Plot Setup - scale
• Page Setup

Deformations

• Define Profile Tool (Meshes Palette)
• Profiles Palette
• Mesh Movement with Profiles
• Point Disturbances
• Object Deformation

Rounding

• Rounding Tool (next to last tool in Meshes palette)
• Plain Rounding
• Controlled Rounding

Spheres

• Spherical Objects Tool (last tool in Meshes palette)
• Type of Spherical Solid

PrintingREADING for further reference
FormZ User's Manual - Tutorial. AutoDesys. pp 61-109
FormZ User's Manual - Modeling. AutoDesys. pp 4-38 to 4-194


ASSIGNMENT - this assignment is an individual assignment. It is due at the beginning of class next Thursday.

1. The assignment for this week is very general. You should construct a 3D model of some aspect of your studio site using Form Z. This might be a detail, a model of the surrounding neighborhood, a grading plan, a path or a structure.
2. You should turn in Two (2) Hidden Line and One (1) Wire Mesh printouts of your model. These first three sheets should have one each of Axonometric, Isometric and Perspective views.
3. On a fourth sheet, there should be at least one 3D section.
4. If you choose to do a neighborhood scale model, there is a pre-prepared project with an aerial photograph underlaid to help you get started. This project is called /FormZ_week2/mill_creek.fmz and can be found in the . It requires the presence of an image called mill_creek.tif in the same folder. If you are interested in a larger area, please e-mail me ASAP so I can get it to you. (By the way, the image is a public domain digital orthophoto produced by the USGS in JPG format. It is scaled at 1:2835 and is in UTM projection, Zone 18.)
5. You are strongly encouraged to go beyond what you have done in studio using the modeling capabilities of FormZ. Try not to make this simply a representation of your work on paper. Rather, try to use it as a tool to drive your design forward.

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last update: 3 Nov 1997