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 standardBufferer, 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.
输入端口
输入
只接受二维几何图形作为输入。
Output Ports
Output
输出曲线中的每个点都将是指定的量，以指定的单位测量，远离输入几何体。如果指定的缓冲区量太小，则输出具有空几何图形的特征。
Parameters
Buffer Distance Unit
This parameter specifies the measurement units used by theBuffer Distanceparameter.
Buffer Distance
如果一个便士ositive (negative) buffer amount is specified, the input feature is expanded (shrunk). A buffer amount of 0 will leave the input geometry unmodified.
End Cap Style
缓冲线时，可以指定端点封口样式。
As the diagrams below illustrate, these caps can beRound(default) orSquare, but you can also set this parameter to没有.
Round
Square
没有
Corner Style
When buffering a line or area, you can specify the corner style.
As the diagrams below illustrate, the corner styles can beRound(default),斜面(chopped), orMiter（尖的）。如果Miteris used, a limit must be specified using the转角限量parameter. If a corner is too pointed for the miter limit, the corner will instead be bevelled.
Round
斜面
Miter
Interpolation Angle
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 theRoundEnd Cap Styleand theRoundCorner Style. The value must be between 0 and 90 degrees.
转角限量
This parameter controls how pointed a buffered corner can be before it is bevelled. It is the highest value that the ratio of corner distance to offset is allowed to have before truncation occurs. A higher number allows for more extreme corner angles.
Editing Transformer Parameters
Using a set of menu options, transformer parameters can be assigned by referencing other elements in the workspace. More advanced functions, such as an advanced editor and an arithmetic editor, are also available in some transformers. To access a menu of these options, click
beside the applicable parameter. For more information, seeTransformer Parameter Menu Options.
Transformer Categories
Related Transformers
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