英文:
MAUI how to use clip
问题
- 从磁盘加载图像并显示在屏幕上 ->
完成!
- 在图像上显示裁剪边界作为剪辑几何体 ->
完成!
- 保存图像和几何信息 ->
完成!
- 在另一页中的网格图像容器中放置。用图像裁剪结果填充容器 ->
问题!
是否有方法在不保存裁剪后的图像的情况下,只使用图像路径和剪辑几何体来完成这个任务?
英文:
Can any one one explain how to use clip geometry and imagesource/button etc in the next scenario:
- Load an image from disk and show on display ->
DONE!
- Over the image show a crop bounds as a clip geometry ->
DONE!
- Save the image and geometry ->
DONE!
- On another page place in a grid image container. Fill the container with the IMAGE CROPPING RESULT ->
PROBLEM!
Are there ways to do this without saving a cropped image, just using the image path and clip geometry????
答案1
得分: 3
是的,你可以使用“使用几何裁剪”。VisualElement类有一个Clip属性,类型为Geometry,它定义了元素内容的轮廓。当Clip属性设置为Geometry对象时,只有在Geometry区域内的部分才可见。
以下示例演示了如何将Geometry对象用作图像的裁剪区域:
<Image Source="monkeyface.png">
<Image.Clip>
<EllipseGeometry RadiusX="100"
RadiusY="100"
Center="180,180" />
</Image.Clip>
</Image>
英文:
> Are there ways to do this without saving a cropped image, just using
> the image path and clip geometry????
Yes, you can use the Clip with a Geometry
.
The VisualElement class has a Clip property, of type Geometry, that defines the outline of the contents of an element. When the Clip property is set to a Geometry object, only the area that is within the region of the Geometry will be visible.
The following example shows how to use a Geometry object as the clip region for an Image:
<Image Source="monkeyface.png">
<Image.Clip>
<EllipseGeometry RadiusX="100"
RadiusY="100"
Center="180,180" />
</Image.Clip>
</Image>
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