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[原创]FME函数速查手册(2)-Transformer Quick-Reference(2)

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更多 发布于:2006-08-19 09:27
AggregateFilter Routes features differently depending on if their geometry consists of an aggregate of several primitive geometries, or if it is a simple, single piece geometry. 聚合过滤:根据图形是否为聚合类型而分别输出
Aggregator Combines feature geometries into aggregates. One aggregate feature is output for each unique combination of values of the attributes specified in the GROUP BY. 聚合:凡是分组属性值相同的要素被组合为一个单独的聚合类型的要素输出
AnchoredSnapper Snaps endpoints of features entering via the CANDIDATE port to endpoints of features entering via the ANCHOR port. ANCHOR features are not output. 锚点捕捉,将候选要素的端点捕捉到锚点要素的端点,锚点要素不输出
AngleConverter Converts angles of a feature's geometry and/or attributes from one representation to another. 转换要素的图形或属性中的角度为不同的表达格式
ArcCreator Creates an arc feature using the parameters supplied, and sends it into the workspace for processing. 根据参数创建二维圆弧要素,并输入转换流程
ArcEstimator Replaces the geometry of the feature with a two-dimensional circular arc whose shape is estimated from the first, middle, and last point of the linear feature passed in. 改为二维圆弧,其参数由原始线状要素的开始、中间、结束三个点计算而出
ArcSDEQuerier Performs queries on an ArcSDE spatial database. The queries can have both a spatial as well as nonspatial component. ArcSDE空间数据库执行查询,可包含空间和非空间条件
ArcStroker Converts arc features into lines replacing the feature geometry with a series of points interpolated along the arc boundary. 将圆弧打散为线串:沿着圆弧内插节点。
AreaCalculator Calculates the area of a polygonal feature and adds it as a new attribute. 面积计算:将多边形要素的面积写为属性
AreaFillColorSetter Sets the fill color for the feature's area. Formats that support color will then render the interior feature in the set color. 面状要素的填充颜色设置,适用于支持颜色的数据格式
AreaGeneralizer Reduces the density of area feature boundary coordinates by removing points from the original feature while preserving the original coverage topology. 面状要素的边界节点抽稀
AreaOnAreaOverlayer Performs an area-on-area overlay. All input areas are intersected against each other and resultant area features are created and output. -面叠置运算:所有输入要素互相求交并输出结果
AreaSmoother Smooths the feature's boundary lines by determining a new location for each vertex. 面状要素的边界平滑处理
AttributeAccumulator Combines feature attributes. 多项属性进行组合
AttributeClassifier Tests if the contents of the source attribute are entirely of a particular character classification, and routes the feature accordingly. 根据属性值是否完全属于某个字符分类(集合)而分别输出
AttributeCopier Copies the value of an attribute to a newly created attribute. 复制属性为一个新属性
AttributeCreator Adds an attribute to the feature, supplying it some constant value. 添加一个新属性并设置其值
AttributeExposer Exposes a series of attributes. 暴露一系列属性
AttributeExpressionRemover Removes all attributes on incoming features that match a given regular expression. 删除那些名称与指定的表达式匹配的属性
AttributeFileReader Reads the contents of a file and stores them as the value for the specified attribute. 读属性数据文件,将其内容保存到指定的属性
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