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FME 函数速查手册
2007 年 11 月 26 日
12:51
TransFORMer
Brief Descrīption
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 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,圆弧的形状由参数控制,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 unde&ned.
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。
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。
The start angle controls where the arc begins, and is measured in degrees counterclockwise 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 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 used.
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 Used: @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 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 the attribute 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, @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 sends it into the workspace for
processing.
根据参数创建二维要素,并输入转换流程
2DEllipseReplacer 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 ellipse whose shape is set 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 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)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 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 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),圆弧的形状由参数控制,例如常数或属性值
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 sends it into the workspace for
processing.
根据参数创建三维要素,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、根据起始值和结束值内插高程
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、根据起始值和结束值内插高程
3DPointAdder 给要素增加一个三维的节点(最后一个节点),其坐标由原始要素的属性获得
Adds a three-dimensional point as the last vertex of the feature. The ordinates are taken from attributes
in the original feature.
给要素增加一个三维的节点(最后一个节点),其坐标由原始要素的属性获得
3DPointReplacer 改为三维的点,其坐标由原始要素的属性获得
Replaces the geometry of the feature with a three-dimensional point whose ordinates are taken from
attributes in the original feature.
改为三维的点,其坐标由原始要素的属性获得
Affiner 坐标仿射变换
PerFORMs an affine transFORMation on the coordinates of the feature.
坐标仿射变换
AffineWarper 仿射纠正,用于纠正一批要素使之最接近参考要素
PerFORMs warping operations on the spatial coordinates of features. It is used to adjust a set of
observed features so they more closely match some set of reference features.
仿射纠正,用于纠正一批要素使之最接近参考要素
AggregateFilter 聚合过滤:根据图形是否为聚合类型而分别输出
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 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
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 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
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 转换要素的图形或属性中的角度为不同的表达格式
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 根据参数创建二维圆弧要素,并输入转换流程
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 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
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 对 ArcSDE 空间数据库执行查询,可包含空间和非空间条件
PerFORMs queries on an ArcSDE spatial database. The queries can have both a spatial as well as
nonspatial component.
对 ArcSDE 空间数据库执行查询,可包含空间和非空间条件
ArcStroker 将圆弧打散为线串:沿着圆弧内插节点
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 面积计算:将多边形要素的面积写为属性
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 面状要素的填充颜色设置,适用于支持颜色的数据格式
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 面状要素的边界节点抽稀
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 面-面叠置运算:所有输入要素互相求交并输出结果
PerFORMs an area-on-area overlay. All input areas are intersected against each other and resultant
area features are created and output.
面-面叠置运算:所有输入要素互相求交并输出结果
AreaSmoother 面状要素的边界平滑处理
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 多项属性进行组合
Combines feature attributes.
多项属性进行组合
AttributeClassifier 根据属性值是否完全属于某个字符分类(集合)而分别输出
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 复制属性为一个新属性
Copies the value of an attribute to a newly created attribute.
复制属性为一个新属性
AttributeCreator (添加一个新属性并设置其值)
Adds an attribute to the feature, supplying it some constant value.
添加一个新属性并设置其值
AttributeExposer 暴露一系列属性
Exposes a series of attributes.
暴露一系列属性
AttributeExpressionRemover 删除那些名称与指定的表达式匹配的属性
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 读属性数据文件,将其内容保存到指定的属性
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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