In addition to the generic FME feature attributes that FME Workbench adds to all features (see About Feature Type Attributes), this format also adds format-specific attributes (Format Attributes).
|
Attribute Name |
Contents |
|---|---|
|
wlas_type |
This will always be wlas_none. |
Parameter Data/Column Definition Feature Types
Parameter Data and Column Definition sections have the same structure in each data line:
mnemonic .unit value :description {format} | association
For example:
DEPTH .M 50 :depth drilled {F} | WELL
In the example, the entry depth refers to the depth drilled. It has a float value of 50 in meters (units) and is associated with the entry well.
The first four fields – mnemonic, unit, value, description – are required in order for that line to be valid. This means format and association are optional. If an invalid line is found, the reader will skip over it. However, the following is a legal line since unit, value, and description are allowed to be empty:
WELL . A-123 :name of the well
In the example, unit was skipped because the name of a well would not contain units.
For more information on how this feature type maps to schemas, features, and attributes, please see the Reader Overview.
Column Definition sections are related to Column Data sections by both their header and structure. There must be one column definition section for every column data section (however, two or more column data sections can refer to the same column definition section). Furthermore, all Column Definition and Column Data sections must adhere to the following relationship in their header lines:
|
Column Definition |
Column Data |
|
|---|---|---|
| _Definition | _Data | Note that these sections must match exactly. |
| Curve/C | Ascii/A |
Column Data Feature Types
Values in a data line in a Column Data section are either comma, tab, or space-separated. Each value is either a real number or Latin characters. The total number of delimited values in a valid Column Data section must be a multiple of the total number of data lines in the corresponding Column Definition section. If not, the Column Data section will be skipped.
For more information on how this feature type maps to schemas, features, and attributes, please see the Reader Overview.
Other Feature Types
Other Sections have the header ~Other or ~O and their data lines don’t have any structure. The end of the Other section occurs at the start of the next section or end of file.
For more information on how this feature type maps to schemas, features and attributes, please see the Reader Overview.