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[原创]FME函数速查手册(4)-Transformer Quick-Reference(4)

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更多 发布于:2006-08-19 09:33
CharacterCodeExtractor Extracts the integral character code of the first character in the source string attribute, and adds its integer value in the character set to the feature as another attribute. 获取输入属性值的第一个字符的整数字符编码,输出为新的属性
CharacterEncoder Sets the result attribute to the character whose numeric code was contained in the source code attribute (or the integer entered in). 根据输入的字符编码值生成字符给输出属性
Chopper Ensures that all features output have less than or equal to vertices. 按最大节点数截断所有输入要素
CircularityCalculator Calculates the "circularity" of an area feature, which indicates how elongated the feature is. 圆率,计算输入的面状要素的细长程度
Clipper Performs a geometric clipping operation. 图形剪切
Cloner Makes copies of the features input and outputs all copies through its single output port. 复制所有输入要素
ColorRasterCreator Creates a feature with a raster of the specified size using the parameters supplied, and sends it into the workspace for processing. 根据参数创建栅格要素,并输入转换流程
CommonSegmentFinder Tests to see which of the CANDIDATE features have even one segment in common with any BASE feature. 公共边检查:候选要素是否具有与基准要素相同的公共边
Concatenator Concatenates the values of any number of attributes and constants together, and stores the result in a new attribute. 字符串连接:将任意数量的属性值或常量数次连接起来并输出为新的属性
ContourGenerator Generates contours from the underlying surface which is defined by the input POINTS, DEM_GRIDS, 3D_LINES, and BREAKLINES. 生成等高线,相应的表面由输入的点、DEM格网、三维的线、以及断裂线等来定义
ConvexHullAccumulator Creates convex hulls for groups of features. 生成分组要素的外接凸多边形
ConvexHullReplacer Replaces the geometry of the feature with a polygon representing its convex hull. 将图形改为其外接凸多边形
CoordinateConcatenator Retrieves the value of all the feature's coordinates into an attribute, separated by the delimiter characters. 将要素的全部坐标写入一个属性,坐标之间用指定的字符进行分隔
CoordinateCounter Stores the number of coordinates the feature has into an attribute. 将坐标数量写入属性
CoordinateFetcher Retrieves the value of the x, y, and z coordinate at the specified index into attributes. 获得指定节点号的坐标并写入属性
CoordinateRemover Removes a single coordinate from the geometry of the feature. 删除要素的某个坐标
CoordinateRounder Rounds off the coordinates of the feature to the specified number of decimal places. 坐标保留指定位数小数
CoordinateSystemFetcher Retrieves the coordinate system of the feature into an attribute. 获得坐标系统并写入属性
CoordinateSystemRemover Removes the coordinate system from all input features. 删除所有输入要素的坐标系统
CoordinateSystemSetter Tags all features with the given coordinate system. 设置所有输入要素的坐标系统
Counter Adds an attribute holding the next integer in a sequence. 计数器:将一个序列发生器的下一个值输出为新的属性
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