Pictorial Drawing
As implied by their name, pictorial drawings try to picture a part, structure or assembly in a three-dimensional form. Pictorial drawings are therefore used to clarify information that orthogonal drawing cannot easily communicate. However, being an measured drawing, they do not distort the illustrated form like a perspective drawing. There are a number of different pictorial drawing methods depending on the discipline the drawing is being used for. These can commonly include engineering, architecture and packaging. The different methods of pictorial drawing include:
- Axonometric Drawing and Projection
- Planometric Drawing and Projection
- Oblique Drawing and Projection
Did You Know?
Set squares can be used in combination to achieved the desired angles to draw all forms of paraline drawings. Simply use each set square in combination with each other and a tee square to create the correct angle.
| Guide | Angle to the Drawing Plan | Angle to the Vertical | Drawing System | Illustration |
|---|---|---|---|---|
| Tee Square Only | 0° or 180° | 90° | Oblique | |
| Tee Square, and a 90°, and a 45°, and a 30° set square | 15° | 105° | Dimetric | |
| Tee Square & 30° edge of isometric set square | 30° | 120° | Isometric | |
| Tee Square & 45° edge of equalateral set square | 45° | 135° | Dimetric, Trimetric, & Oblique | |
| Tee Square & 60° edge of isometric set square | 60° | 30° | Planometric | |
| Tee Square & 90° edge of isometric or equalaterial set square | 90° | 0° (180°) | All | |
| Tee Square & flipped 30° edge of isometric or equalaterial set square | -30° (150°) | -120° | Isometric | |
| Tee Square & flipped 45° edge of equalateral set square | -45° (135°) | -135° | Trimetric, Oblique | |
| Tee Square & flipped 60° edge of equalateral set square | -60° (150°) | -150° | Planometric |
Planometric Drawing
Planometric drawing and projection is used for architecture. The drawing system allows architects to illustrate what the designed environment will look like. This is particularlly valued when looking after clients with little experience in reading two-dimensional orthogonal plans.