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How do thick and thin lines change the appearance of a drawing?
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Drawing
The Artist's Sister, Edma, with Her Daughter, Jeanne, watercolor over graphite on paper by Berthe Morisot, 1872; in the collection of the National Gallery of Art, Washington, D.C.
In the context of drawing, the thickening or thinning of a line is a fundamental technique used to indicate changes in the object being represented, whether spatially or through color.1
By varying the strength of a stroke, an artist can achieve several effects:
- Spatial and Plastic Representation: Adjusting line width helps clarify the relationship between an object's component parts, such as defining borders or indicating shifts in a spatial plane.1
- Light and Shadow: Differences in stroke strength can render light-and-shadow values, helping to model the surface of an object.1
- Form and Volume: Thick and thin lines help suggest the corporeal appearance of a subject, providing a sense of depth and volume that a uniform line might lack.1
Ultimately, these variations allow the artist to move beyond simple outlines to create more detailed, expressive, and illusionistic renditions of their subjects.1