61 lines
1.6 KiB
C#
61 lines
1.6 KiB
C#
using Graphing.Abstract;
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using Graphing.Forms;
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using Graphing.Parts;
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using System.Collections.Generic;
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namespace Graphing.Graphables;
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public class EquationDifference : Graphable, ITranslatableX, IConvertEquation
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{
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public bool UngraphWhenConvertedToEquation => true;
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public double Position
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{
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get => _position;
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set
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{
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_position = value;
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points = new Float2(equA.GetValueAt(value), equB.GetValueAt(value));
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}
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}
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private double _position;
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public double OffsetX
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{
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get => Position;
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set => Position = value;
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}
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protected readonly Equation equA, equB;
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protected Float2 points; // X represents equA.y, Y represents equB.y
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public EquationDifference(double position, Equation equA, Equation equB)
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{
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this.equA = equA;
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this.equB = equB;
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Name = $"Difference between {equA.Name} and {equB.Name}";
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Position = position;
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}
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public override IEnumerable<IGraphPart> GetItemsToRender(in GraphForm graph)
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{
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Float2 pA = new(Position, points.x),
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pB = new(Position, points.y),
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pC = new(Position, (points.x + points.y) / 2);
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return [new GraphUiText($"{points.x - points.y:0.00}", pC),
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new GraphUiCircle(pA), new GraphUiCircle(pB), new GraphLine(pA, pB)];
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}
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public double DistanceAtPoint(double x) => equA.GetValueAt(x) - equB.GetValueAt(x);
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public override Graphable ShallowCopy() => new EquationDifference(Position, equA, equB);
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public Equation ToEquation() => new(DistanceAtPoint)
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{
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Color = Color,
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Name = Name
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};
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}
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