MRF2DCleaner

每一个特点，那就是输出通过清洗端口都有一个新的属性mrf_clean_status添加到指定的特征是否被修改，创建或将保持在清洗过程中保持不变。该属性的可能值“修改”，“创建”和“原始”。

功能也可以通过输出被举报端口如果任何删除悬，删除短几何和计算真正的交叉口设定为旗。每项功能都具有一个新的属性mrf_clean_flag加入到指定该特征是否被标记为比清洁公差值（“短”）较短，悬挂几何形状（“吊着”）或交叉点（“交叉点”）。

默认行为是使用整套的输入功能为一体的集团。这个选项允许您选择属性,define which groups to form—each set of features that have the same value for all of these attributes will be processed as an independent group.

注意：How parallel processing works with FME: see关于并行处理for detailed information.

这个 parameter determines whether or not the transformer should perform the work across parallel processes.If it is enabled, a process will be launched for each group specified by the通过...分组parameter.

Parallel Processing Levels

For example, on a quad-core machine, minimal parallelism will result in two simultaneous FME processes.极端 parallelism on an 8-core machine would result in 16 simultaneous processes.

You can experiment with this feature and view the information in the Windows Task Manager and the Workbench Log window.

是: This transformer will process input groups in order.Changes on the value of the通过...分组parameter on the input stream will trigger batch processing on the currently accumulating group.这个 will improve overall speed if groups are large/complex, but could cause undesired behavior if input groups are not truly ordered.

没有: This is the default behavior.Processing will only occur in this transformer once all input is present.

这个 is used as the default cleaning tolerance unless the功能公差属性is specified and valid.The minimum cleaning tolerance allowed is 0.0.

在清洗数据中使用的层的数目是由输入特征不同的清洁公差值的数量来确定。具有相同的清洁公差特征被处理为在同一层上。

If set to是， intersections between all input features are computed, breaking arcs and lines wherever an intersection occurs.

If set to旗， the intersection point will be output through the被举报port, with anmrf_clean_flagattribute set to "intersection".

If是， a fuzzy intersection is created from geometries which are within one of the cleaning tolerance distances, but do not actually touch or cross.

If set to是， arcs and lines that are within the specified cleaning tolerance are extended – while maintaining line-work direction.没有 intersections are created while doing this.这个 option does not process overshoots;a combination of计算交叉口和删除短几何can serve this purpose.

If set to是， a number of vertices of lines are removed.The number of vertices removed is controlled by a weeding tolerance of the value of (过滤因子* value of清洁宽容) or (过滤因子* value of功能公差属性).The latter is always used when it is valid and the功能公差属性is specified.The larger the value of weeding tolerance, the more vertices will be removed.

If set to是， then features that have at least one free end point and have lengths smaller than (垂坠因子* value of清洁宽容) or (垂坠因子* value of功能公差属性) are removed.

If set to删除短期和长期旗， then features that have at least one free end point will either be removed as above, or its end point will be output through the被举报port, with anmrf_clean_flagattribute set to "dangle".

The default value of垂坠因子is 1.0 and the minimum is 0.0.

这个 parameter is used with删除悬to determine if a dangling feature is too short.

The default value is 1.0 and the minimum value is 0.0.

这个 parameter is used with广义含线to determine a weeding tolerance.

The default value is 1.0 and the minimum value is 0.0.

If set to是， features that have lengths smaller than the specified cleaning tolerances are deleted.

If set to旗， a point on the feature will be output through the被举报port, with anmrf_clean_flagattribute set to "short".

If set to是， duplicated features are deleted.Features are considered to be duplicates if their geometries are within the cleaning tolerance and only features with a smaller cleaning tolerance will remain after cleaning.

If set to是， then singly-connected features are joined to form longer ones.A pair of linear features becomes a candidate for joining only when the two are singly connected at a given node or end point.

If set to是， then the geometry of a feature can be changed to match that of another, if the two are approximately the same to begin with.

If set to是， then area features such as polygons or donuts will be cleaned without stroking them first.