Obliczanie pola i obwodu okręgów
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[
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]Jak obliczyć pole i obwód okręgów
Problem: Jak obliczyć pole i obwód okręgów (CADNET-1153).
Wskazówki: Aby to zrobić, pobierz promień z CadEntityTypeName.CIRCLE z jednostek i użyj wzoru “2 * Math.PI * promień”.
Przykład:
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foreach (CadBaseEntity entity in cadImage.Entities) | |
{ | |
if (entity.TypeName == CadEntityTypeName.CIRCLE) | |
{ | |
double radius = ((CadCircle)entity).Radius; | |
System.Console.WriteLine("Circumference= " + 2 * Math.PI * radius); | |
System.Console.WriteLine("Area= " + Math.PI * radius * radius); | |
} | |
} |