MRF2DShortGeometryRemover
Note:该MRFCleaner变压器可从安全软件额外付费的程序包。亚搏在线请联系sales@亚搏在线safe.com或致电604-501-9985。This package includes all MRFCleaner transformers, available for Windows only (64-bit and 32-bit).
Removes features that have lengths smaller than the specified tolerance, if Short Geometry Action is set to Remove.
Output Ports
每个功能,通过输出清洗端口将添加到指定功能是否被修改,创建,或在清洗过程中不变的一个新的属性“mrf_clean_status”。该属性的可能值“修改”,“创建”和“原始”。
If Short Geometry Action is set to Flag, such features will not be removed, but for each one a point, label, or circle (depending on the value of Flag Type) will be output through the被举报port.
Parameters
变压器
如果选择,每个组的特征与在相同的值通过...分组attributes will be processed separately from other groups.
Process At End (Blocking): This is the default behavior. Processing will only occur in this transformer once all input is present.
Process When Group Changes (Advanced): This transformer will process input groups in order. Changes of the value of the Group By parameter on the input stream will trigger processing on the currently accumulating group. This may improve overall speed (particularly with multiple, equally-sized groups), but could cause undesired behavior if input groups are not truly ordered.
有使用两个典型原因Process When Group Changes (Advanced). The first is incoming data that is intended to be processed in groups (and is already so ordered). In this case, the structure dictates Group By usage - not performance considerations.
The second possible reason is potential performance gains.
性能提升是最有可能当数据已经排序(或使用阅读SQL ORDER BY声明),因为更少的工作需要FME的。如果数据需要排序,它可以在工作区中进行排序(虽然增加的处理开销可能会抵消任何收益)。
Sorting becomes more difficult according to the number of data streams. Multiple streams of data could be almost impossible to sort into the correct order, since all features matching a通过...分组value need to arrive before any features (of any feature type or dataset) belonging to the next group. In this case, using通过...分组同Process At End (Blocking)可能是等效的和简单的方法。
Note:Multiple feature types and features from multiple datasets will not generally naturally occur in the correct order.
As with many scenarios, testing different approaches in your workspace with your data is the only definitive way to identify performance gains.
Parameters
Cleaning tolerance is used as the default tolerance unless the Feature Tolerance Attribute is specified and valid. The minimum tolerance allowed is 0.0.
在清洗数据中使用的层的数目是由输入特征的不同的公差值的数量来确定。具有相同特征的公差被处理为在同一层上。
您可以短几何操作设置为删除或标记功能。
This parameter sets the flag type as a point, label or circle, if Short Geometry Action is set to Flag.
对于每一个功能,比规定的公差较小,此参数设置的标志类型为点,标签或圆形,如果短期几何动作设置为标志。
Usage Notes
这种变压器执行相同的操作作为MRF2DCleaner用清除短几何参数设置为Yes并没有选择其他选项。查看MRF2DCleanerfor more details.1这项工作的部分是MRF测量系统公司的知识产权,并在许可下使用。©2006 MRF测量系统公司。版权所有。Note that the circle/label flagging is an added option in this transformer.
FME Licensing Level
该MRFCleaner变压器可从安全软件额外付费的程序包。亚搏在线请联系sales@亚搏在线safe.com或致电604-501-9985。
Editing Transformer Parameters
使用一组菜单选项,变压器参数可以通过引用在工作区中的其它元件来分配。更先进的功能,如高级编辑,算术编辑,也是一些变压器可用。要访问这些选项的菜单,点击适用的参数旁边。欲了解更多信息,请参阅变压器Parameter Menu Options.
定义值
有几种方法来定义一个变压器使用的值。最简单的是简单地在一个值或字符串,其可包括各种类型,如属性引用,数学和字符串函数,和工作空间参数的函数类型。有许多的工具和快捷方式,可以帮助构建值,一般可从邻近值字段的下拉上下文菜单。
使用文本编辑器
The Text Editor provides a convenient way to construct text strings (including regular expressions) from various data sources, such as attributes, parameters, and constants, where the result is used directly inside a parameter.
Using the Arithmetic Editor
The Arithmetic Editor provides a convenient way to construct math expressions from various data sources, such as attributes, parameters, and feature functions, where the result is used directly inside a parameter.
Conditional Values
Set values depending on one or more test conditions that either pass or fail.
内容
Expressions and strings can include a number of functions, characters, parameters, and more.
当设定值 - 无论是直接在参数输入或使用的编辑之一构造 - 字符串和表达式包含字符串,数学,日期/时间或FME特征函数将具有评价这些功能。因此,这些功能的名称(在形式@ <FUNCTION_NAME>) should not be used as literal string values.
These functions manipulate and format strings. | |
Special Characters |
A set of control characters is available in the Text Editor. |
数学函数在两种编辑器中可用。 | |
Date/Time Functions | Date and time functions are available in the Text Editor. |
These operators are available in the Arithmetic Editor. | |
These return primarily feature-specific values. | |
FME和工作区特有的参数可被使用。 | |
创建和修改用户参数 | Create your own editable parameters. |
Dialog Options - Tables
与表样式参数变压器具有用于填充和操作价值的附加工具。
Row Reordering |
Enabled once you have clicked on a row item. Choices include:
|
Cut, Copy, and Paste |
Enabled once you have clicked on a row item. Choices include:
Cut, copy, and paste may be used within a transformer, or between transformers. |
过滤 |
开始输入字符串,和所述矩阵将仅显示行匹配这些字符。搜索所有列。这不仅影响了变压器中的属性的显示 - 它不会改变其属性输出。 |
进口 |
进口populates the table with a set of new attributes read from a dataset. Specific application varies between transformers. |
重置/刷新 |
Generally resets the table to its initial state, and may provide additional options to remove invalid entries. Behavior varies between transformers. |
Note:Not all tools are available in all transformers.
FME社亚搏国际在线官网区
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搜索样品和有关该变压器的FME社亚搏国际在线官网区.