Fig. 9. A correct drawing of the sides, ceiling and floor of a hall or other enclosed room should have only one vanishing point, namely, the point of sight.
Fig. 10. Having established the pitch of the roof at A, the angle at B is found by projecting a line vertically at right angles with the vanishing point at X, namely, D. A line carried to B from D will give the proper pitch. The apex of the roof E is determined by projecting a line through the crossed oblique lines on the right hand side of the house.
The following rules which are few and simple will tend greatly to overcome many of the most obvious defects in drawings made by pupils.
Primary Rules in Perspective
Rule 1. Lines and figures in planes parallel to the picture planes, that is, facing you, retain their original relations and forms; thus, parallel lines will be presented parallel; a square will remain a square; a circle, a circle, etc.
Rule 2. Parallel lines not parallel to the picture plane appear to converge or come together; in terms of perspective, they are said to vanish. The point at which they would meet if sufficiently projected is called their vanishing point. Whatever the number of lines, if parallel to each other, they will all converge to the same vanishing point.
Rule 3. Horizontal parallel lines will converge to a point on the horizontal line. If above the eye, they will come down to the horizon (or horizontal) line; if below the eye, they will rise toward it.
Rule 4. Vertical lines will always be represented vertical.
If one stands looking down a long, straight, level street, the houses appear to meet in the distance the vanishing'; point. (See Fig. ii.) If you look down a long, straight railroad track, the rails and telegraph poles appear to meet at the vanishing point. If you are looking at a long procession of men, marching in a straight line (or nearly so) with the line of your point of sight, the last man is almost indistinguishable. He is at the vanishing point, for our intent and purposes. (See Fig. 36.)
Sections
- Action Drawing
- Advice To Teachers
- Beginners Instructions
- Blocking In
- Clay Modeling
- Copying By Triangulation
- Decorative Ornamental Art
- Drawing From Nature
- Early Exercises
- Elementary Lines
- Elementary Perspective
- Expression Emotion
- Foreshortening
- Geometrical Form
- How To Draw Animals
- How To Draw Cartoons
- How To Draw Charcoal Crayon
- How To Draw Flowers
- How To Draw Women Men Children
- Lettering
- Light And Shade
- Materials For Drawing
- Models Measurements Proportions
- Outlines For Beginners
- Paper Folding Cutting
- Pen And Ink Drawing
- Principles Of Composition
- Simple Story Pictures
- Solid Black Effects
- Stimulating Imagination
- Tracing Transferring
- Two Handed Exercises