A simple demo to calculate thermal expansion. You can enter and accept with RETURN into any of the temparature or length fields, choose pre-made objects from the left list or materials with different thermal coefficients. It's just a simple demo that uses cooperating solvers (DeltaBlue for textual input/conversion, Relaxation for calculations)
Fahrenheit
-459.6700008858194
-273.15
Celcius
Centimer
Inches
Material
Aluminium
Copper
Iron
Länge bei 0 Grad Celsius in cm
32400
32295.56929200003
12714.791059834903
2737m Golden Gate Bridge
7180m Bay Bridge
324m Eiffel Tower
656.5m Freemont Bridge
this.addScript(function addConstraints() {
var F = this.get("F"),
C = this.get("C"),
L0 = this.get("L0"),
cm = this.get("cm"),
inch = this.get("in"),
material = this.get("material"),
structures = this.get("structures");
material.coefficients = {
Aluminium: 23.1 / 1000000,
Copper: 16.5 / 1000000,
Iron: 11.8 / 1000000
}
material.coefficient = 1 / 1000000;
bbb.defaultSolvers = [new Relax()];
[F,C,L0,cm,inch,material,structures].each(function(ea){disconnectAll(ea); bbb.unconstrainAll(ea)});
// setup type conversions
[F,C,L0,cm,inch].each(function(ea) {
ea.beInputLine()
connect(ea, "savedTextString", ea, "value", function(v) { return Math.round(parseFloat(v) * 100) / 100 });
connect(ea, "value", ea, "textString", function(v) { return v + "" });
});
connect(material, "selection", material, "coefficient", function(v) { return this.sourceObj.coefficients[v] });
connect(structures, "selection", L0, "savedTextString", function(v) { return String(parseFloat(v)) * 100 });
always: {
C.value >= -273.15 && C.value <= Math.pow(2, 28)
}
always: {
F.value - 32 == 1.8 * C.value
}
always: {
inch.value * 2.54 == cm.value
}
always: {
cm.value == ro(L0.value) * ro(material.coefficient) * C.value + ro(L0.value)
}
});
<lively.morphic.Box#7D1E5... - Rectangle>
Tag:
run
save
Tests
-- ALL --
addConstraints
Scripts
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+
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Connections
+
-- ALL --
all
ObjectEditor -- Rectangle>>addConstraints
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