禁毒倡议书
FME函数速查手册
2007年11月26日
12:51
TransFORMer
Brief Descrīption 彩虹下的约定
简介（注意并非针对本文，可能有差异）
2DArcReplacer改为二维圆弧，圆弧的形状由参数控制，例如常数或属性值
Replaces the geometry of the feature with a two-dimensional arc who shape is t by the parameters, which can be either constant floating point values or the values of existing attributes.
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改为二维圆弧，圆弧的形状由参数控制，例如常数或属性值
The center x and y parameters t the origin of the arc. If the 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。 如果这些价值是空白的，并且输入特点是点，现有的特点x/y价值将确定弧的中心。 如果参数值是空白的，并且输入特点不是点，操作是未定义。饭店
The primary and condary axis t the radii of the arc. Note that the primary axis need not be larger than the condary, however, the rotation angle is always measured from the x axis to the primary axis. To make a circular arc, t both the primary and condary 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Ｘ轴总是被计量到主要轴注意主要轴不需要。 要做圆弧，设置主要和次要轴对同一价值。
虹吸法
The start angle controls where the arc begins, and is measured in degrees counterclockwi from horizontal.
弧开始的起动角度控制，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打扫角度控制弧的期间和用程度被测量。 弧从开始将跑渔对起动角度加上打扫角度。
The rotation angle is measured in degrees counterclockwi 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 lecting the attribute name from the pull down list.
其中每一个参量也许被输入作为数字或者可以从特点属性的价值被采取通过选择属性名字
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 ud.
如果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，应该使用ArcEstimator。
FME Functions Ud: @XValue, @YValue
2DBoxReplacer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 who 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 lecting the attribute name from the pull down list.
To replace a feature with its bounding box in one step, u the BoundingBoxReplacer.
To retrieve the bounds of a feature into attributes, u the BoundsExtractor.
FME Functions Ud: @XValue, @YValue, @GeometryType, @Dimension
2DCreator根据参数创建二维要素，并输入转换流程
Creates a two-dimensional feature using the parameters supplied, and nds it into the workspace for processing.
根据参数创建二维要素，并输入转换流程 梯形面积计算
2DEllipReplacer改为二维椭圆，椭圆的形状由参数控制
Replaces the geometry of the feature with a two-dimensional ellip who shape is t by the parameters.
改为二维椭圆，椭圆的形状由参数控制
2DForcer改为二维要素（删除Z坐标）
Removes any elevation (Z) coordinates which may (or may not) have been prent 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 offts 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）覆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）覆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（最后一个节点），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（最后一个节点），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 who 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），圆弧的形状由参数控制，例如常数或属性值
Replaces the geometry of the feature with a two-dimensional arc who shape is t 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），圆弧的形状由参数控制，例如常数或属性值
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3DCreator根据参数创建三维要素，并输入转换流程
Creates a three-dimensional feature using the parameters supplied, and nds it into the workspace for processing.
