Point Cloud XYZ Reader Parameters

选择将分割文件中字段的分隔符。默认情况下，此参数设置为space; however, you can also select one of the following separators:

• , (comma)
• ；（分号）
• | (vertical bar)
• tab

默认情况下，每个分隔符都被视为分隔不同的字段。

When this parameter is selected, multiple contiguous separators are treated as a single separator.

一些CSV文件在其包含的所有值周围加上引号。选中时，此参数将从列值中去掉引号。

如果在文件中指定了表的字段或列名，请选择此值，然后将从文件中提取名称。否则，表的列将被赋予默认名称（例如，col0、col1、。。。，科恩）。

If the column/field names is AFTER the header information instead of BEFORE, then you can set this option. Otherwise, by default, the first line of the file will be used as the column/field names.

不te:This parameter is ignored ifFile Has Field Namesis not selected. IfField Names Follow Headeris selected,Lines to Skip还应设置为跳过至少一行，否则第一行也将作为要素处理。

This indicates the number of lines to skip at the top of the file. By default, 1 line is skipped. Each line skipped is logged to the log file. This is useful if the file contains a header line of field names or other descriptive material (like comments) that should be skipped.

此字段指示文件底部要跳过的页脚行数。默认情况下，不跳过页脚行。跳过的每一行页脚都记录到日志文件中。如果文件包含应跳过的描述性材料的页脚行，则此选项非常有用。

Limits the number of lines read into the point cloud.

Indicates the number of rows in the file that should be read to generate the automatic mapping of the component map.

The default is 10,000. If this parameter is set to 0, there will be no limit and all rows will be read.

不te:This only affects the component map – it does not affect the reader when the translation is run.

Maps each data column in the Point Cloud XYZ file to a component of the point cloud. This table is automatically populated from the first Point Cloud XYZ file, if one is present. The component map is reset every time a parameter that affects the columns is changed.

If not specified, the point cloud will have one component for each column, with the component name equal to the column name, and where the type is determined by scanning the file.

Using the minimum and maximum x and y parameters, define a bounding box that will be used to filter the input features. Only features that intersect with the bounding box are returned.

If all four coordinates of the search envelope are specified as 0, the search envelope will be disabled.

When selected, this parameter removes any portions of imported features being read that are outside the Search Envelope.

The example below illustrates the results of the Search Envelope whenClip to Search Envelopeis not selected (set to No) and when it is selected (set to Yes).

• 不: Any features that cross the search envelope boundary will be read, including the portion that lies outside of the boundary.
• 是的: Any features that cross the search envelope boundary will be clipped at the boundary, and only the portion that lies inside the boundary will be read. The underlying function for theClip to Search Envelope函数是一个交集；但是，当Clip to Search Envelopeis selected, a clipping operation is also performed in addition to the intersection.

By default, this is set to UTF-8 encoded documents. If this parameter is set to another encoding, the reader will transcode the data to the specified encoding.

Specifies whether string component data may contain separators.

此参数必须设置为是的if the data contains separators, or the file may be read incorrectly. However, if there are no separators, setting this parameter to不may improve performance.

Use this parameter to expose Format Attributes in Workbench when you create a workspace:

• In a dynamic scenario, it means these attributes can be passed to the output dataset at runtime.
• In a non-dynamic scenario where you have multiple feature types, it is convenient to expose additional attributes using this one parameter. For example, if you have ten feature types and want to expose the same attribute in each one, it is easier to define it once than it is to set each feature type individually in the workspace.