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IED Lesson 1.2

Terms in this set (28)

3D Modeling
Also known as solid modeling. The process of creating a solid model or three-dimensional object using a modeling and design application on a computer.
Abstraction
The process of taking away or removing characteristics from something in order to reduce it to a set of essential characteristics.
Additive
A solid modeling technique where geometry is added to existing model geometry.
Annotation
An annotation is an object that provides information about a feature, such as the length of a wall, the diameter of a fastener, or a detail callout. Annotation objects can include dimensions, notes, or other types of explanatory symbols.
Center Mark
A center mark shows the location of a hole, cylinder, or other round features on a drawing as a pair of perpendicular lines that cross at the center of a feature.
Centerline
A line that defines the center of arcs, circles, or symmetrical parts. A center line is half as thick as an object line.
Computer Aided Design (CAD)
A process that uses a computer to assist in designing something, such as a part, circuit, or building.
Conceptual Model
A visual representation of an idea. A conceptual model can be a sketch, concept map, schematic, flow chart, or any other visual representation.
Construction Line
Lightly drawn line to guide drawing other lines and shapes.
Design Intent
A strategy in which geometry is defined in such a way that changes produce desired, predictable results.
Dimension
A precise distance between edges, faces, or other design features.
Dimension line
A proportional representation of distance on a drawing or design
Extension lines
Lines used to connect dimension lines to the design feature
Fillet
a concave strip of material roughly triangular in cross section that rounds off an interior angle between two surfaces
Hidden Line
A heavy dashed line that represents an edge that is not directly visible.
Isometric View
A form of pictorial representation or graphical model in which all dimensions parallel to the three principal spatial axes are shown in their true proportions.
Leader Line
A line connecting an interior design feature to a dimension; commonly used for circles
Mathematical Model
A representation of a real-world situation or system using mathematical concepts and language.
Multiview Drawing
A drawing which contains views of an object projected onto two or more orthographic planes.
Object Line
A heavy solid line used on a drawing to represent the outline.
Orthogonal
Intersecting or lying at right angles; perpendicular.
Parametric Modeling
3D modeling where geometry is created with association to other geometry.
Prototype
A working model used to test a design concept by making observations and necessary adjustments.
Spatial Axes
A coordinate system for representing location in three dimensional space, i.e. x-y, y-z, x-z
Spatial Visualization
The mental representation and manipulation of two- and three-dimensional objects.
Standard
Something set up and established by authority as a rule for the measure of quantity, weight, extent, value, or quality.
Subtractive
A solid modeling technique where geometry is subtracted from existing model geometry.
User Interface
A user interface, also called a "UI," is the means in which a person controls a software application or hardware device. Nearly all software programs have a graphical user interface, or "GUI," that includes graphical controls which a user can select using a mouse or a keyboard.
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