The Stained Glass Window in Values.
The greater part of the illustrations which appear in books and magazines is done in neutral grays. All sorts of color effects are represented by grays in these different pictures, and this is done by people who understand just what neutral value is needed to represent a certain color, its tints, or its shades. You have often represented flowers, landscapes, figures, and still life in gray washes, or with pencil or charcoal. In Chart D you see that certain colors like yellow, yellow-orange, orange, yellow-green and green are represented in their full intensity by grays chosen from the upper end of the neutral value scale, and that the darker colors like red, red-violet, blue, blue-violet, and violet are represented in their full intensity by the grays below middle gray.
Compare the colors you used in making your stained glass window design with Chart D on [page 77]. Draw the same plan that you used for your colored design. Cover the smaller oblong with a water wash and drop in charcoal-gray, in values to suit the light and dark colors in your stained glass window design. Fill the small oblongs in the border with flat washes of gray. Try to determine just what grays would represent the colors you used. Your lead lines should be of even thickness throughout. Draw them when the rest of the work is thoroughly dry.
Several Ways of Decorating a Square Space.
On pages [69], [70], and [71] you learned how to draw and divide certain shapes. You saw that by slightly changing the direction of construction lines, decorative designs could be made. Construction lines are lines used in drawing and dividing a shape. They may or may not be retained, after the design is finished. In Sketch A on this page the four sides of the square and the horizontal diameter may be taken as construction lines. By following these lines with a narrow pathway and slightly changing the direction of parts of them, designs can be made in great variety.
In Sketch B diameters are drawn and in the center is a small square on its diagonals. Little pathways lead from the sides of the square to the center, resulting in a four-sided decoration. In Sketch C diagonals are drawn and pathways sent along them to the center. Sketches D, E, and F are like A, B, and C, except that curved lines have been used instead of straight lines.
Draw six four-inch squares. Copy the construction lines and their modifications as shown in the six sketches on this page. Finish each design and strengthen the lines which will bring out the decoration.