[原创]FME函数速查手册（6）-Transformer Quick-Reference(6)

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更多发布于：2006-08-19 09:34

<TABLE cellSpacing=0 cellPadding=0 width=653 border=0 x:str>
<COLGROUP>
<COL style="WIDTH: 104pt; mso-width-source: userset; mso-width-alt: 4448" width=139>
<COL style="WIDTH: 194pt; mso-width-source: userset; mso-width-alt: 8288" width=259>
<COL style="WIDTH: 191pt; mso-width-source: userset; mso-width-alt: 8160" width=255>

<TR height=30>
<TD class=xl24 width=139 height=30 x:str="ExpressionEvaluator ">ExpressionEvaluator </TD>
<TD class=xl27 width=259 x:str="Evaluates an arithmetic expression and returns the result in a new attribute. ">Evaluates an arithmetic expression and returns the result in a new attribute. </TD>
<TD class=xl25 width=255>表达式计算，结果输出为新的属性</TD></TR>
<TR height=15>
<TD class=xl24 width=139 height=15 x:str="Extender ">Extender </TD>
<TD class=xl27 width=259 x:str="Creates extensions to linear features. ">Creates extensions to linear features. </TD>
<TD class=xl25 width=255>延长线状要素</TD></TR>
<TR height=30>
<TD class=xl24 width=139 height=30 x:str="FeatureMerger ">FeatureMerger </TD>
<TD class=xl27 width=259 x:str="Merges the attributes of one feature onto another feature. ">Merges the attributes of one feature onto another feature. </TD>
<TD class=xl25 width=255>将一个要素的属性合并到另一个要素</TD></TR>
<TR height=30>
<TD class=xl24 width=139 height=30 x:str="FeatureTypeExtractor ">FeatureTypeExtractor </TD>
<TD class=xl27 width=259 x:str="Adds an attribute containing the original feature type of a feature. ">Adds an attribute containing the original feature type of a feature. </TD>
<TD class=xl25 width=255>获得要素类型并输出为新的属性</TD></TR>
<TR height=30>
<TD class=xl24 width=139 height=30 x:str="FeatureTypeFilter ">FeatureTypeFilter </TD>
<TD class=xl27 width=259 x:str="Separates the features routed to it into their original feature types, if possible. ">Separates the features routed to it into their original feature types, if possible. </TD>
<TD class=xl25 width=255>根据原来的要素类型重新区分输入的要素</TD></TR>
<TR height=30>
<TD class=xl24 width=139 height=30 x:str="GeometryCoercer ">GeometryCoercer </TD>
<TD class=xl27 width=259 x:str="Resets the geometry type of the feature. ">Resets the geometry type of the feature. </TD>
<TD class=xl25 width=255>改变要素的图形类型</TD></TR>
<TR height=30>
<TD class=xl24 width=139 height=30 x:str="GeometryFilter ">GeometryFilter </TD>
<TD class=xl27 width=259 x:str="Routes a feature based on its geometry type. ">Routes a feature based on its geometry type. </TD>
<TD class=xl25 width=255>根据要素的图形类型进行分类输出</TD></TR>
<TR height=30>
<TD class=xl24 width=139 height=30 x:str="GeometryRemover ">GeometryRemover </TD>
<TD class=xl27 width=259 x:str="Completely removes the geometry of the feature. ">Completely removes the geometry of the feature. </TD>
<TD class=xl24 width=255>删除图形数据</TD></TR>
<TR height=45>
<TD class=xl24 width=139 height=45 x:str="GlobalVariableRetriever ">GlobalVariableRetriever </TD>
<TD class=xl27 width=259 x:str="Reads the specified global variable and puts its value into the specified attribute. ">Reads the specified global variable and puts its value into the specified attribute. </TD>
<TD class=xl25 width=255>读全局变量的值，写入属性</TD></TR>
<TR height=45>
<TD class=xl24 width=139 height=45 x:str="GlobalVariableSetter ">GlobalVariableSetter </TD>
<TD class=xl27 width=259 x:str="Creates and sets the specified global variable to the value of the specified attribute. ">Creates and sets the specified global variable to the value of the specified attribute. </TD>
<TD class=xl25 width=255>根据属性的值创建并设置全局变量</TD></TR>
<TR height=60>
<TD class=xl24 width=139 height=60 x:str="GMLFeatureExtractor ">GMLFeatureExtractor </TD>
<TD class=xl27 width=259 x:str="Constructs GML documents from the input features and stores them in the specified attribute for the features that are output by the GML port. ">Constructs GML documents from the input features and stores them in the specified attribute for the features that are output by the GML port. </TD>
<TD class=xl25 width=255>根据输入要素构建GML文档并写入属性</TD></TR>
<TR height=45>
<TD class=xl24 width=139 height=45 x:str="GMLFeatureReplacer ">GMLFeatureReplacer </TD>
<TD class=xl27 width=259 x:str="Constructs features out of GML documents that are stored in an attribute of the input features. ">Constructs features out of GML documents that are stored in an attribute of the input features. </TD>
<TD class=xl25 width=255>根据属性中存储的GML文档构建要素</TD></TR>
<TR height=90>
<TD class=xl24 width=139 height=90 x:str="GOIDGenerator ">GOIDGenerator </TD>
<TD>Calculates a GOID (Geographic Object IDentifier) for each incoming feature, and adds it as a new attribute. The GOID is a unique 128-bit number that incorporates the position of a feature with other numbers. </TD>
<TD class=xl25 width=255>为输入的要素分别生成图形对象标识(GOID)，GOID是一个唯一的128位的数字，其中包含了要素的位置和其它一些数字</TD></TR>
<TR height=30>
<TD class=xl24 width=139 height=30 x:str="Grepper ">Grepper </TD>
<TD class=xl27 width=259 x:str="Performs a regular expression match on the value of the specified attribute. ">Performs a regular expression match on the value of the specified attribute. </TD>
<TD class=xl25 width=255>对属性值进行表达式匹配性判断</TD></TR>
<TR height=75>
<TD class=xl24 width=139 height=75 x:str="HexDecoder ">HexDecoder </TD>
<TD class=xl26 width=259 x:str="Decodes the given attribute into a new attribute, by converting its encoded hexadecimal value into a new ASCII string. Decodes a value that has been encoded from the HexEncoder. ">Decodes the given attribute into a new attribute, by converting its encoded hexadecimal value into a new ASCII string. Decodes a value that has been encoded from the HexEncoder. </TD>
<TD class=xl25 width=255>将16进制编码的属性解码为ASCII字符串，输出为新的属性</TD></TR>
<TR height=60>
<TD class=xl24 width=139 height=60 x:str="HexEncoder ">HexEncoder </TD>
<TD class=xl27 width=259 x:str="Encodes the given attribute into a new attribute, by converting its ASCII value into a hexadecimal string. Can be undone with the HexDecoder. ">Encodes the given attribute into a new attribute, by converting its ASCII value into a hexadecimal string. Can be undone with the HexDecoder. </TD>
<TD class=xl25 width=255>将属性中的ASCII字符串编码为16进制，输出为新的属性</TD></TR>
<TR height=30>
<TD class=xl24 width=139 height=30 x:str="HoleCounter ">HoleCounter </TD>
<TD class=xl27 width=259 x:str="Adds a new attribute whose value is the number of holes in the feature. ">Adds a new attribute whose value is the number of holes in the feature. </TD>
<TD class=xl25 width=255>获得环中的孔的数量，输出为新的属性</TD></TR>
<TR height=60>
<TD class=xl24 width=139 height=60 x:str="InsidePointExtractor ">InsidePointExtractor </TD>
<TD class=xl27 width=259 x:str="Generates a point guaranteed to be inside the area feature, and adds the coordinates of this point to the feature as attributes. ">Generates a point guaranteed to be inside the area feature, and adds the coordinates of this point to the feature as attributes. </TD>
<TD class=xl25 width=255>生成多边形或环的内部点，其坐标写入属性</TD></TR>
<TR height=60>
<TD class=xl24 width=139 height=60 x:str="Intersector ">Intersector </TD>
<TD class=xl27 width=259 x:str="Computes intersections between all input features, breaking lines and polygons wherever an intersection occurs. ">Computes intersections between all input features, breaking lines and polygons wherever an intersection occurs. </TD>
<TD class=xl25 width=255>计算所有输入要素的交点并打断线、面</TD></TR>
<TR height=30>
<TD class=xl24 width=139 height=30 x:str="Joiner ">Joiner </TD>
<TD class=xl27 width=259 x:str="Queries a database to retrieve attributes associated with a feature. ">Queries a database to retrieve attributes associated with a feature. </TD>
<TD class=xl25 width=255>查询数据库，获得与要素相关联的属性</TD></TR></TABLE>

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[原创]FME函数速查手册（6）-Transformer Quick-Reference(6)

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