# FillRule 列舉

## 定義

``public enum class FillRule``
``public enum FillRule``
``type FillRule = ``
``Public Enum FillRule``

FillRule

## 欄位

 EvenOdd 0 從某個點朝任意方向繪製無限遠的光線，並且計算給定圖案中與光線相交的路徑線段數目，藉以決定該點是否在填滿區域中的規則。Rule that determines whether a point is in the fill region by drawing a ray from that point to infinity in any direction and counting the number of path segments within the given shape that the ray crosses. 如果這個數字是奇數，該點即是在區域內；如為偶數，該點即在區域外。If this number is odd, the point is inside; if even, the point is outside. Nonzero 1 從某個點朝任意方向繪製無限遠的光線，然後檢查圖案線段與光線相交的位置，藉以決定該點是否在路徑填滿區域內的規則。Rule that determines whether a point is in the fill region of the path by drawing a ray from that point to infinity in any direction and then examining the places where a segment of the shape crosses the ray. 從零開始計算，路徑線段每次從左到右與光線交會就加一，每次從右到右與光線交會就減一。Starting with a count of zero, add one each time a segment crosses the ray from left to right and subtract one each time a path segment crosses the ray from right to left. 計算交會後，如果結果為零，則點即在路徑外。After counting the crossings, if the result is zero then the point is outside the path. 否則就在路徑內。Otherwise, it is inside.