Line Drawing Algorithm With Thickness

Line Drawing Algorithm With Thickness : Bresenham line drawing algorithm example pdf dda

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Gesture Drawing Exercises: When you begin investigating your subject matter in the initial phase of a high school Art programme, it can be helpful to make several first-hand gestural drawings. The best of these can be selected for your final portfolio (taking advantage of a photocopier or digital camera to reduce in size, if necessary). A small still life scene can be depicted just as easily as a large moving form.

Most famous for his post-impressionist paintings, Vincent van Gogh also produced over a thousand drawings. In this pen and pencil line drawing, ‘Cottages With a Woman Working in the Foreground’, we see the stylistic swirling of line in the trees and clouds that is so characteristic of his well-known paintings. Capturing the swirling of the trees and the movement of the clouds, van Gogh represents the light falling across the textured landscape with quick, confident mark-making.

Contour Drawing Exercises: Using line alone eliminates the challenge of applying tone, colour and mediums; and instead focuses attention solely upon shape and proportion. After completing warm-up activities such as blind and gesture drawings, slower, more formal contour drawings can be an excellent way to begin more realistic representations of your subject matter. Used intermittently throughout projects, contour drawings can also be helpful for the student who needs to work faster.

The angle that these techniques are applied may remain constant within a drawing, or it may change in response to the angle and direction of the forms. For example, cross-hatching may flow around the surface of an object in a similar direction as cross contour lines. These techniques are also a great way to create the illusion of texture (see our article about observational drawings).