本文整理汇总了C#中Vertices.PreviousIndex方法的典型用法代码示例。如果您正苦于以下问题：C# Vertices.PreviousIndex方法的具体用法？C# Vertices.PreviousIndex怎么用？C# Vertices.PreviousIndex使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Vertices的用法示例。
在下文中一共展示了Vertices.PreviousIndex方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: CollinearSimplify
/// <summary>
/// Removes all collinear points on the polygon.
/// </summary>
/// <param name="vertices">The polygon that needs simplification.</param>
/// <param name="collinearityTolerance">The collinearity tolerance.</param>
/// <returns>A simplified polygon.</returns>
public static Vertices CollinearSimplify(Vertices vertices, float collinearityTolerance)
{
//We can't simplify polygons under 3 vertices
if (vertices.Count < 3)
return vertices;
Vertices simplified = new Vertices();
for (int i = 0; i < vertices.Count; i++)
{
int prevId = vertices.PreviousIndex(i);
int nextId = vertices.NextIndex(i);
Vector2 prev = vertices[prevId];
Vector2 current = vertices[i];
Vector2 next = vertices[nextId];
//If they collinear, continue
if (MathUtils.Collinear(ref prev, ref current, ref next, collinearityTolerance))
continue;
simplified.Add(current);
}
return simplified;
}