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Joseph Cottam edited this page Sep 8, 2015 · 7 revisions

Using the datsaset for the Racial Dot Map (thank you to Dustin Cable for sharing), the following images represent the population of the US as captured in the 2010 census.

(Under each image is an ARL string indicating how to generate the image using the experimental AR language.)

High-definition alpha composition with racial distribution information.

arl: (seq (colorkey (cableColors)) (catInterpolate (color clear) .1))

Perceptually corrected, high-definition alpha composition of raw populations.

The full data range is guaranteed to be visible and color interpolation is done on cube-root transformed values to do approximate perceptual correction.

arl: (seq (toCount) (fn (cbrt)) (interpolate (rgb 255 204 204) (color red)))

Simulating standard alpha composition.

Approximation of what would occur if no Abstract Rendering specific techniques were employed.

arl: (seq (toCount) (interpolate (color white) (color red) (color clear) 1.0 255.0))

Clipwarn analysis

Uses Abstract Rendering to determine where over saturation (black) and under saturation (gray) were present in the standard alpha composition version.

arl:(seq (toCount) (clipwarn (interpolate (color white) (color red) (color clear) 1.0 255.0)))