| A | B |
|---|
| Strokes | In sketching, a line is drawn by making a series of short, overlapping strokes. |
| Border Lines | This is the heaviest line used in sketching. |
| Visible Line | Is used to indicate visible edges and interestions of an object. |
| Hidden Lines | are made up of a series of dashes and are used to show features that are not visible from the reader's point of view. |
| Section Lines | these lines are parallel, inclined (45 degrees) lines spaced approximately .125" apart. |
| Symmetry Centerlines | are used to indicate the centers of round objects in true-shape views. |
| Dimension Lines | generally terminate in arrowheads at the ends. |
| Cutting Plane Lines | indicate where an object has been cut to to show interior features. |
| Sketching an Inclined Line | Sketch up when a line inclines to the right and down when a line inclines to the left. |
| Graph Method | where sketches can be enlarged or reduced easily by using coordinates and grids. |
