FME 函数速查手册2023 年 11 月 26 日12:51TransFORMerBrief Descrption简介留意并非针对本文，可能有差异2DArcReplacer 改为二维圆弧，圆弧的外形由参数掌握，例如常数或属性值Replaces the geometry of the feature with a two-dimensional arc whose shape is set by the parameters, which can be either constant floating point values or the values of existing attributes.改为二维圆弧，圆弧的外形由参数掌握，例如常数或属性值The center x and y parameters set the origin of the arc. If these values are blank, and the input features are points, the existing feature x/y values will determine the center of the arcs. If the parameter values are blank, and the input features are not points, the operation is undefined.中心x和y参量设置了弧的起源。 假设这些价值是空白的，并且输入特点是点，现有的特点x/y价值将确定弧的中心。 假设参数值是空白的，并且输入特点不是点，操作是未定义。The primary and secondary axis set the radii of the arc. Note that the primary axis need not be larger than the secondary, however, the rotation angle is always measured from the x axis to the primary axis. To make a circular arc, set both the primary and secondary axis to the same value.主要和次要轴设置了弧的半径。 大于次要，然而，自转角度从轴总是被计量到主要轴留意主要轴不需要。 要做圆弧，设置主要和次要轴对同一价值。The start angle controls where the arc begins, and is measured in degrees counterclockwise from horizontal.弧开头的起动角度掌握，和用左转程度被测量从水平。The sweep angle controls the duration of the arc, and is measured in degrees.The arc will run from the start angle to the start angle plus the sweep angle.The清扫角度掌握弧的期间和用程度被测量。 弧从开头将跑渔对起动角度加上清扫角度。The rotation angle is measured in degrees counterclockwise from horizontal, and measures the rotation of the primary axis from horizontal.自转角度用左转程度被测量从水平，并且测量主要轴的自转从水平的。Each of the parameters may either be entered as a number, or can be taken from the value of a feature attribute by selecting the attribute name from the pull down list.其中每一个参量或许被输入作为数字或者可以从特点属性的价值被实行通过选择属性名字从拉扯下来列出。If the parameters for the arc are not known and need to be calculated from a linear feature”s geometry, the ArcEstimator should be used.假设弧的参量不知道并且不需要从一个线性特点的几何被计算，应当使用ArcEstimator。FME Functions Used: XValue, YValue2DBoxReplacer 改为二维矩形，矩形的最大最小坐标为指定的常数或原始要素的属性值Replaces the geometry of the feature with a two-dimensional box whose minimums and maximums are fixed val-ues, or are taken from attributes in the original feature.改为二维矩形，矩形的最大最小坐标为指定的常数或原始要素的属性值Each of the parameters may either be entered as a number, or can be taken from the value of a feature attribute by selecting theattribute name from the pull down list.To replace a feature with its bounding box in one step, use the BoundingBoxReplacer. To retrieve the bounds of a feature into attributes, use the BoundsExtractor.FME Functions Used: XValue, YValue, GeometryType, Dimension2DCreator 依据参数创立二维要素，并输入转换流程Creates a two-dimensional feature using the parameters supplied, and sends it into the workspace for processing.依据参数创立二维要素，并输入转换流程2DEllipseReplacer 改为二维椭圆，椭圆的外形由参数掌握Replaces the geometry of the feature with a two-dimensional ellipse whose shape is set by the parameters.改为二维椭圆，椭圆的外形由参数掌握2DForcer 改为二维要素删除Z 坐标Removes any elevation (Z) coordinates which may (or may not) have been present on the original feature.改为二维要素删除 Z 坐标2DGridCreator 按格网方式生成一批二维点状要素，须指定原点和间距Creates a grid of two-dimensional point features, at the origin and using the offsets specified.按格网方式生成一批二维点状要素，须指定原点和间距2DGridReplacer 将输入的一批要素改为按格网方式生成的二维点状要素，格网的范围至少掩盖全部输入要素的外接矩形，格网间距须指定Replaces the input features with a grid of two-dimensional point features that have the specified spacing, and which cover (at least) the bounding box area of all the features that enter the transFORMer.将输入的一批要素改为按格网方式生成的二维点状要素，格网的范围至少掩盖全部输入要素的外接矩形，格网间距须指定2DPointAdder 给要素增加一个二维的节点最终一个节点，其坐标由原始要素的属性获得Adds a two-dimensional point as the last vertex of the feature. The ordinates are taken from attributes in the original feature.给要素增加一个二维的节点最终一个节点，其坐标由原始要素的属性获得2DPointReplacer 改为二维的点，其坐标由原始要素的属性获得Replaces the geometry of the feature with a two-dimensional point whose ordinates are taken from attributes in the original feature.改为二维的点，其坐标由原始要素的属性获得3DArcReplacer 改为二维圆弧注：原文如此，圆弧的外形由参数掌握，例如常数或属性值Replaces the geometry of the feature with a two-dimensional arc whose shape is set by the parameters, which can be either constant floating point values or the values of existing attributes.改为二维圆弧注：原文如此，圆弧的外形由参数掌握，例如常数或属性值3DCreator 依据参数创立三维要素，并输入转换流程Creates a three-dimensional feature using the parameters supplied, and sends it into the workspace for processing.依据参数创立三维要素，并输入转换流程3DForcer 改为三维要素，Z 坐标由指定的属性或常数获得Sets all the Z coordinates of the feature to the value of the specified attribute (or the entered floating point number).改为三维要素，Z 坐标由指定的属性或常数获得3DInterpolator 三维插值：沿着一个线状要素、依据起始值和完毕值内插高程Interpolates elevation values along a linear feature from a starting value to an ending value.三维插值：沿着一个线状要素、依据起始值和完毕值内插高程3DPointAdder 给要素增加一个三维的节点最终一个节点，其坐标由原始要素的属性获得Adds a thr