如何在photoshop上绘制桶形状像油漆桶工具

Question

  

可能重复：
  Flood Fill Algorithm - Objective C Version

我想在图像中绘制颜色区域（不是所有区域，假设我想在图像中绘制颜色到圆圈）它似乎是photoshop上的油漆桶工具。我应该怎么做？ 提前致谢

Answer 1

您是否在推断要填充的形状或填充算法时遇到问题？我从你的问题中推断出你的大部分麻烦都在于算法。

直接来自维基百科，这里是用于洪水填充的伪造算法。

Flood-fill (node, target-color, replacement-color):
 1. If the color of node is not equal to target-color, return.
 2. Set the color of node to replacement-color.
 3. Perform Flood-fill (one step to the west of node, target-color, replacement-color).
    Perform Flood-fill (one step to the east of node, target-color, replacement-color).
    Perform Flood-fill (one step to the north of node, target-color, replacement-color).
    Perform Flood-fill (one step to the south of node, target-color, replacement-color).
 4. Return.

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