28 lines
No EOL
1.1 KiB
C++
28 lines
No EOL
1.1 KiB
C++
#include "Rhombus.h"
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#include "GeometryUtils.h"
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#include "IsoscelesTriangle.h"
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bool Rhombus::validate() {
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double sideOne = calculate_distance(mVertices[0], mVertices[1]);
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double sideTwo = calculate_distance(mVertices[1], mVertices[2]);
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double sideThree = calculate_distance(mVertices[2], mVertices[3]);
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double sideFour = calculate_distance(mVertices[3], mVertices[0]);
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IsoscelesTriangle firstTriangle;
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firstTriangle.setCoordinate(0, mVertices[0]);
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firstTriangle.setCoordinate(1, mVertices[1]);
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firstTriangle.setCoordinate(2, mVertices[2]);
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IsoscelesTriangle secondTriangle;
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secondTriangle.setCoordinate(0, mVertices[0]);
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secondTriangle.setCoordinate(1, mVertices[2]);
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secondTriangle.setCoordinate(2, mVertices[3]);
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// A valid rhombus must (a) Have vertices (0, 1, 2) make a valid isosceles
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// triangle, (b) Have vertices (0, 2, 3) make a valid isosceles triangle,
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// and (c) Have all sides of equal length
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return firstTriangle.validate() && secondTriangle.validate() &&
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(double_eq(sideOne, sideTwo) && double_eq(sideTwo, sideThree) &&
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double_eq(sideThree, sideFour));
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} |