56 lines
1.8 KiB
C#
56 lines
1.8 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Globalization;
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namespace Shapes
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{
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public class Validator
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{
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public static void ValidateDouble(double value, string errorMessage)
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{
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if (double.IsInfinity(value) || double.IsNaN(value))
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throw new ShapeException(errorMessage);
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}
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public static void ValidatePositiveDouble(double value, String errorMessage)
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{
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ValidateDouble(value, errorMessage);
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if (value < 0)
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throw new ShapeException(errorMessage);
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}
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public static void ValidateRectangle(List<Point> points, String errorMessage)
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{
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List<Point> pointList = new List<Point>(points);
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var TOLERANCE = Double.Epsilon + Double.Epsilon;
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var plumLine1 = new Line(points[0], points[2]);
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var plumLine2 = new Line(points[1], points[3]);
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var heightLine1 = new Line(points[0], points[3]);
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var heightLine2 = new Line( points[1], points[2]);
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var lengthLine1 = new Line(points[0], points[1]);
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var lengthLine2 = new Line(points[3], points[2]);
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if (Math.Abs(plumLine1.ComputeLength() - plumLine2.ComputeLength()) > TOLERANCE
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|| Math.Abs(heightLine1.ComputeLength() - heightLine2.ComputeLength()) > TOLERANCE
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|| Math.Abs(lengthLine1.ComputeLength() - lengthLine2.ComputeLength()) > TOLERANCE )
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{
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throw new ShapeException(errorMessage);
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}
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while(pointList.Count > 0)
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{
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var tmp = pointList[0];
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pointList.Remove(tmp);
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if (pointList.Contains(tmp))
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{
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throw new ShapeException(errorMessage);
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}
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}
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}
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}
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} |