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CADD-2 Lesson 4
PTC Labs 6 & 7 Review
Term | Definition |
---|---|
Ellipse | is a curve that is longer than it is wide |
Major axis | the distance of a line across the long length of an ellipse. |
Minor axis | the distance of a line across the short length of an ellipse. |
Regular Polygon | is a plane figure bounded by 3 or more equal straight sides, with the adjoining sides forming equal angles. |
Inscribed | - regular polygon is drawn inside the imaginary circle. The distance across the corners of the polygon is equal to the diameter of the circle. |
Circumscribed | regular polygon is drawn outside the circle. The distance across the flats is equal to the diameter of the circle. |
Surveyor's units | utilize angles measured in degrees, minutes, and seconds in North, South, East, & West |
Contours | represent the height of the ground above sea level |
Plat | a map used to show the boundaries of a piece of land and to identify it |
Cut | the amount of earth removed to change the contour of a piece of land |
Fill | earth supplied and put in place to change the contour of a piece of land |
Map Drafting is mostly associated with... | Civil Engineering |
Setback | Zoning law that restricts the distance permitted from any building to the property line. |
Survey | Shows the exact size, shape, and levels of a piece of property. |
Benchmark | A point of known origin used a reference in determining other points in a survey. |
American System of Surveying | Uses surveyor's angles measured in degrees, minutes, & seconds from North & South. |