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How to cut holes in a polygon selection

eliu

 joined: 2007-08-09
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新竹, 台灣
1subject: How to cut holes in a polygon selectionPromote 0 Bookmark 02016-10-22quote  

The holes in a polygon selection can be used for

  • polygon shape(polygon selection + rectangle)
  • filters
  • image stamp copy
  • partial image saving (transparent holes)
Creating the hollow star in the example
  1. tap多邊形區域選擇
  2. tap ☆
  3. drag to adjust the size/position
  4. Tap the rectangle icon to fill the star with a color. The color is editable.
  5. tap多邊形區域選擇
  6. tap ☆
  7. drag to adjust the size/position to make the smaller ☆ inside the first ☆
  8. While the smaller ☆ is selected, tap 'selected polygon → Hole' of the second menu.
To create the hole of a filter, the steps are similar. Tapping 'grey level' filter instead of 'rectangle'.
 
How to revert a polygon hole selection to a non-hole polygon.
  1. Tap the large object.
  2. tap AndCamera 相片編輯器 多邊形 編輯 to switch to controlling-points(vertex) editing.
  3. Tap a controlling-point(vertex) of the hole.
  4. Tap AndCamera 相片編輯器 多邊形 編輯 again and the whole polygon of the hole is selected.
  5. Tap 'selected polygon → Hole' to revert to a normal polygon selection.
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