The avatar for @jwolondon
Jo Wood
Professor of Visual Analytics interested in design, geovisualization, visual storytelling and computational thinking.
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Hello
Edited
Jun 22, 2024
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13 stars
2
Hello
Hello ObservableHello PolygonsHello TransformsHello AnimationHello Plot layout with HTML and CSSHello modern colour spacesHello Colour MixingHello custom marks with PlotHello Polygon MorphingHello Zoom-PanHello VegaLite and VegaHello Zoomable Vega-Lite MapHello SketchyHello ClipperLibHello Network
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arablePlanting = mip()
.objective(Math.max, "50x + 120y")
.subjectTo("100x + 200y <= 10000")
.subjectTo("10x + 30y <= 1200")
.subjectTo("x + y <= 110")
.solve()
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buttonsAndZips = mip()
.objective(Math.max, "x + y")
.subjectTo("50x + 24y <= 2400")
.subjectTo("30x + 33y <= 2100")
.subjectTo("x >= 45")
.subjectTo("y >= 5")
.solve()
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lp3 = mip()
.objective(Math.max, "a + b + 2c - 2d")
.subjectTo("a + 2c <= 100")
.subjectTo("2b - 8d <= 0")
.subjectTo("b - 2c + d >= 1")
.subjectTo("a + b + c + d == 10")
.solve()
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mip3 = mip()
.objective(Math.max, "a + b + 2c - 2d")
.subjectTo("a + 2c <= 100")
.subjectTo("2b - 8d <= 0")
.subjectTo("b - 2c + d >= 1")
.subjectTo("a + b + c + d == 10")
.var("a", BigInt)
.var("b", BigInt)
.var("c", BigInt)
.var("d", BigInt)
.solve()
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mip3a = {
return (
mip()
// Minimise cost of allocation
.objective(
Math.min,
"1.25x0 + 0.25x1 + 1.25x2 + x4 + x5 + 1.09x6 + 1.49x7 + 0.09x8"
)
// Point must be allocated to one cell in grid:
.subjectTo("x0+x1+x2 == 1")
.subjectTo("x3+x4+x5 == 1")
.subjectTo("x6+x7+x8 == 1")

// Grid cell can have at most one point allocated to it
.subjectTo("x0+x3+x6 <= 1")
.subjectTo("x1+x4+x7 <= 1")
.subjectTo("x2+x5+x8 <= 1")

.var("x0", Boolean)
.var("x1", Boolean)
.var("x2", Boolean)
.var("x3", Boolean)
.var("x4", Boolean)
.var("x5", Boolean)
.var("x6", Boolean)
.var("x7", Boolean)
.var("x8", Boolean)

.solve()
);
}
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