public TriangleOutcome GetSides(TriangleDimensions dimensions)
{
if (dimensions.Sides == null || dimensions.Sides.Count != 1)
{
return(null);
}
return(new TriangleOutcome
{
Type = TriangleType.Equilateral.ToString(),
VertexList = new List <int>
{
0,
0,
dimensions.Sides[0],
0,
DimensionRoundUp.Round(dimensions.Sides[0] * 0.5),
DimensionRoundUp.Round(Math.Sqrt(3) * 0.50 * dimensions.Sides[0])
}
});
}
public TriangleOutcome GetSides(TriangleDimensions dimensions)
{
if (dimensions == null || dimensions.Height == -1 || dimensions.Base == -1)
{
return(null);
}
return(new TriangleOutcome
{
Type = TriangleType.Isosceles.ToString(),
VertexList = new List <int>
{
0,
0,
dimensions.Base,
0,
DimensionRoundUp.Round(dimensions.Base * 0.5),
dimensions.Height
}
});
}
public TriangleOutcome GetSides(TriangleDimensions dimensions)
{
if (dimensions.Sides == null || dimensions.Sides.Count != 3)
{
return(null);
}
var maxIndex = dimensions.Sides.Select((value, index) => new { Value = value, Index = index })
.Aggregate((a, b) => (a.Value > b.Value) ? a : b)
.Index;
int minIndex1 = -1, minIndex2 = -1;
for (var i = 0; i < 3; i++)
{
if (maxIndex == i)
{
continue;
}
if (minIndex1 == -1)
{
minIndex1 = i;
}
else if (minIndex2 == -1)
{
minIndex2 = i;
break;
}
}
if (dimensions.Sides[maxIndex] > dimensions.Sides[minIndex1] + dimensions.Sides[minIndex2])
{
return(null);
}
var heightBasePoint = DimensionRoundUp.Round(
((Math.Pow(dimensions.Sides[minIndex1], 2)) -
(Math.Pow(dimensions.Sides[minIndex2], 2)) +
(Math.Pow(dimensions.Sides[maxIndex], 2))
) * 0.50 * Math.Pow(dimensions.Sides[maxIndex], -1)
);
var height = DimensionRoundUp.Round(
Math.Sqrt((Math.Pow(dimensions.Sides[minIndex1], 2)) -
(Math.Pow(heightBasePoint, 2))
)
);
return(new TriangleOutcome
{
Type = TriangleType.Scalene.ToString(),
VertexList = new List <int>
{
0,
0,
dimensions.Sides[maxIndex],
0,
heightBasePoint,
height
}
});
}
