- Cabinet Pictorial - Oblique pictorial where depth is represented as half scale compared to the height and width scale.
- Cavalier Pictorial - Oblique pictorial where height, width, and depth are represented at full scale.
- Center Line - A line which defines the center of arcs, circles, or symmetrical parts.
- Construction Line - Lightly drawn lines to guide drawing other lines and shapes.
- Depth - The measurement associated with an object’s front-to-back dimension or extent of something from side to side.
- Dimension - A measurable extent, such as the three principal dimensions of an object is width, height, and depth.
- Dimension Line - A line which represents distance.
- Documentation - 1. The documents that are required for something or that give evidence or proof of something. 2. Drawings or printed information that contain instructions for assembling, installing, operating, and servicing.
- Drawing - A formal graphical representation of an object containing information based on the drawing type.
- Edge - The line along which two surfaces of a solid meet.
- Ellipse - A regular oval shape, traced by a point moving in a plane so that the sum of its distances from two other points is constant, or resulting when a cone is cut by an oblique plane which does not intersect the base.
- Extension Line - Line which represents where a dimension starts and stops.
- Freehand - Sketching which is done manually without the aid of instruments such as rulers.
- Grid - A network of lines that cross each other to form a series of squares or rectangles.
- Height - The measurement associated with an object’s top-to-bottom dimension.
- Hidden Line - A line type that represents an edge that is not directly visible.
- Isometric Sketch - A form of pictorial sketch in which all three drawing axes form equal angles of 120 degrees with the plane of projection.
- Leader Line - Line which indicates dimensions of arcs, circles, and detail.
- Line - 1. A long thin mark on a surface. 2. A continuous extent of length, straight or curved, without breadth or thickness; the trace of a moving point. 3. Long, narrow mark or band.
- Line Conventions - Standardization of lines used on technical drawings by line weight and style.
- Line Weight - Also called line width. The thickness of a line, characterized as thick or thin.
- Long-Break Line - A line which indicates that a very long objects with uniform detail is drawn foreshortened.
- Manufacture - To make something, especially on a large scale using machinery.
- Measurement - The process of using dimensions, quantity, or capacity by comparison with a standard in order to mark off, apportion, lay out, or establish dimensions.
- 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 of an object.
- Oblique Sketch - A form of pictorial in which an object is represented as true width and height, but the depth can be any size and drawn at any angle.
- Orthographic Projection - A method of representing three-dimensional objects on a plane having only length and breadth. Also referred to as Right Angle Projection.
- Perspective Sketch - A form of pictorial sketch in which vanishing points are used to provide the depth and distortion that is seen with the human eye.
- Pictorial Sketch - A sketch that shows an object’s height, width, and depth in a single view.
- Plane - A flat surface on which a straight line joining any two points would wholly lie.
- Point - A location in space.
- Profile - An outline of an object when viewed from one side.
- Projection Line - An imaginary line that is used to locate or project the corners, edges, and features of a three-dimensional object onto an imaginary two-dimensional surface.
- Projection Plane - An imaginary surface between the object and the observer on which the view of the object is projected and drawn.
- Proportion - 1. The relationship of one thing to another in size, amount, etc. 2. Size or weight relationships among structures or among elements in a single structure.
- Scale - 1. A straight-edged strip of rigid material marked at regular intervals that is used to measure distances. 2. A proportion between two sets of dimensions used to develop accurate, larger or smaller prototypes, or models.
- Section Lines - Thin lines used in a section view to indicate where the cutting plane line has cut through material.
- Shading - The representation of light and shade on a sketch or map.
- Short-Break Line - Line which shows where part is broken to reveal detail behind the part or to shorten a long continuous part.
- Shape - A two-dimensional contour that characterizes an object or area, in contrast to three-dimensional form.
- Sketch - A rough representation of the main features of an object or scene and often made as a preliminary study.
- Solid - A three-dimensional body or geometric figure.
- Technical Working Drawing - A drawing that is used to show the material, size, and shape of a product for manufacturing purposes.
- Three-Dimensional - Having the dimensions of height, width, and depth.
- Tone - The general effect of color or of light and shade in a picture.
- Two-Dimensional - Having the dimensions of height and width, height and depth, or width and depth only.
- Vanishing Point - A vanishing point is a point in space, usually located on the horizon, where parallel edges of an object appear to converge.
- View - Colloquial term for views of an object projected onto two or more orthographic planes in a multiview drawing.
- Width - The measurement associated with an object’s side-to-side dimension.