Drawing modes—there are three composite images on this page. The top-left one consists of three overlapping circles, one red, one blue and one green, drawn on top of a black rectangle using “add” mode in RGB space. The top-right one consists of a cyan, a magenta and a yellow circle, drawn on top of a white rectangle using “add” mode in CMYK space.
The bottom-left image consists of a red and a green rectangle drawn on top of six rectangles of different shades of grey. The coloured rectangles are drawn in HSB space, opaque in the hue and saturation components, but with no operation for the brightness component. Thus, they take on the brightness of the underlying image, while applying their own colours to it. Note where the green rectangle overlaps the red one, completely replacing its colour.
Layered patterns—demonstration of various effects you can achieve with QuickDraw GX fill patterns. The base shapes are an oval and several rectangles, filled with various pattern options. A geometrical GX shape can only have one colour: multicoloured patterns are achieved by making duplicates of the shape exactly on top of one another, and filling each one with a different pattern with a different colour.
Line caps & dashes—all the GX graphic objects you see in this image are simple straight lines, except for the arrows, which are curved lines. The swords and arrows are embellished with cap shapes at the beginnings and ends of the lines. The other shapes are fancy dash effects, together with some perspective mappings.
All the swords are constructed with identical cap settings: they differ only in the length and thickness of the underlying straight line. Notice how the cap shapes scale with line thickness.
The arrows are supposed to demonstrate how the cap shapes automatically align themselves with the directions of the lines at their endpoints.
Geological eras—a little something I threw together with Lightning Draw, using numbers I found in the 1989 edition of Webster’s dictionary. The drawing is just over 6 inches high and 7 feet wide.
