Expands or shrinks the boundary segments in the input geometry by a specified amount, and if necessary, connects them using stroked arcs.
This transformer works much the same way as the standard缓冲器, but is designed for use with features in Geographic coordinates. The transformer reprojects the features into the Dynamic Equal Distance projection, buffers them, then reprojects back into the original Geographic coordinates.
Input Ports
Input
Only 2D geometries are accepted as input.
输出端口
输出
Each point in the output curve will be the specified amount, measured in the specified units, away from the input geometry. If the specified buffer amount is too small, a feature with a null geometry is output.
参数
缓冲距离Unit
This parameter specifies the measurement units used by the缓冲距离parameter.
缓冲距离
如果指定了正（否定）缓冲量，则输入功能已扩展（缩小）。缓冲量为0将使输入几何形状未修改。
End Cap Style
When buffering a line, you can specify the end-cap style.
As the diagrams below illustrate, these caps can be圆形的（默认）或正方形, but you can also set this parameter toNone。
圆形的
正方形
None
Corner Style
When buffering a line or area, you can specify the corner style.
As the diagrams below illustrate, the corner styles can be圆形的(default),Bevel(chopped), or梅斯特(pointed). If梅斯特is used, a limit must be specified using the梅斯特Limitparameter. If a corner is too pointed for the miter limit, the corner will instead be bevelled.
圆形的
Bevel
梅斯特
插值角度
This parameter controls the smoothness of the stroked arcs in the output buffer boundaries. It specifies what angles should be used to discretize a circular arc. As this parameter decreases in value, the smoothness of the arc connectors increases. This parameter is used for the圆形的End Cap Styleand the圆形的Corner Style。该值必须在0到90度之间。
梅斯特Limit
此参数控件如何在斜面之前尖叫。在发生截断之前，允许在偏移之前允许转角距离与偏移的比率。更高的数字允许更极端的角角角。
Editing Transformer Parameters
使用一组菜单选项，可以通过引用工作区中的其他元素来分配变压器参数。一些变压器也可提供更高级的功能，例如高级编辑器和算术编辑器。要访问这些选项的菜单，请单击
除适用的参数旁边。有关更多信息，请参阅Transformer Parameter Menu Options。
Transformer Categories
Related Transformers
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