// One example taken from the samples page of the Cairo graphic library
// (http://cairographics.org/samples/), rewritten in Box.
include "g"
w = Window["rgb24", (256, 256), .Res[1]]
\ w.Poly[
Style[.Fill["void", ";"], .Border[30.0, .Cap["butt"]]], (64, 50), (64, 200);
Style[.Border[.Cap["round"]]], (128, 50), (128, 200);
Style[.Border[.Cap["square"]]], (192, 50), (192, 200);
// draw helping lines
Style[.Border[2.56, color.red]]
(64, 50), (64, 200); (128, 50), (128, 200); (192, 50), (192, 200)
]
w.Save["cairo_set_line_cap.png"]
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