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Chapter 10
Basic Descriptive Geometry
Term | Definition |
---|---|
Descriptive geometry | is one of the methods a designer uses to solve a problem. |
Slope | is its angle from the horizontal references planes. |
Normal line | is one that is perpendicular to one of the three reference planes. |
Bearing | is an angle line that makes it look in the top view with a north-south line. |
Azimuth | is a measurement that defines the direction of a line off a due north. |
Grade | is a percentage by which land slope is known as. |
Level line | is a line that is horizontal in the vertical projection. |
Frontal line | is a line that is parallel to the vertical plane. |
Profile Line | is a parallel reference plane. |
Skew line | is two lines that are not paralleled do not intersect. |
Piercing Points | is a line that does not lie in a plane and is not parallel to it, the line m |
Dihedral angle | is and only can be measured in the point view of the intersections. |
User coordinate system | that is user-defined to the orientation of the X, Y, Z axes of the coordinate system. |