VolumeCalculator

This transformer accepts all geometries.

This transformer calculates the volume of any solid geometries.

non-3D坚实的几何图形,z的体积ero is always returned.

Use this parameter if you want to isolate only a portion of the geometry passed in to the transformer. If no criteria are specified, the action will apply to the entire geometry at all levels.

Selection can be based on structural location, geometry name, type, appearance information, traits, trait storage types, or definition reference. The syntax used is a restricted set of XQuery, where the return clause is fixed.

基本几何XQuery对话框允许您通过自动根据指定的测试条款自动编写必要的查询来构建简单的选择查询。单击“切换到”高级“按钮打开”高级编辑器“，允许您键入Query Free-form，以获取更多富有效果查询。

Note: ">Note:Once you switch to Advanced mode, you will have to clear all parameters before you can return to Basic mode.

A hierarchical geometry is represented as nodes of type geometry, with attributes containing information about traits, type, and name for each geometry.

The attribute that contains the total volume of the solid feature. If the Geometry XQuery parameter is used, then only those sub-parts that are filtered will contribute to this total.

该参数可用于将卷从多个地面单元（要素的坐标的单位）扩展到其他内容。

This parameter 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.

如果选择此参数，则几何体的每个子部分将具有其自己的卷作为该几何部件上的特征。特性的名称将与卷属性参数中指定的名称相同。

The volume of a part is considered to be the total volume of that part and any sub-parts it may have.

This parameter is often most useful when used with the Geometry XQuery parameter.

Using the Text Editor

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.

Text Editor

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.

算术编辑器

Conditional Values

Set values depending on one or more test conditions that either pass or fail.

参数条件定义对话框

Content

Expressions and strings can include a number of functions, characters, parameters, and more.

设置值 - 无论是否直接在参数中输入或使用其中一个编辑器和包含字符串的表达式都是构造的，都会评估这些函数的字符串和表达式。因此，这些函数的名称（以@ <function_name.>) should not be used as literal string values.

Content Types

String Functions	These functions manipulate and format strings.
Special Characters	A set of control characters is available in the Text Editor.
Math Functions	两个编辑器都有数学函数。
Date/Time Functions	Date and time functions are available in the Text Editor.
Math Operators	These operators are available in the Arithmetic Editor.
FME Feature Functions	These return primarily feature-specific values.
FME Parameters	可以使用FME和工作区的参数。
创建和修改用户参数	Create your own editable parameters.

Note:Not all tools are available in all transformers.