Feature Representation
Feature Representation (Z-Map Reader)
In addition to the generic FME feature attributes that FME Workbench adds to all features (see About Feature Attributes), this format adds the format-specific attributes described in this topic.
The following sections describe parameters specific to each of the supported feature types.
Contours
Attribute Name |
Contents |
zmap_feature_id |
Feature ID. Range: Any positive integer Default: increments from 0 |
zmap_elevation |
Elevation of the feature. Range: Any real number Default: no default |
zmap_continuation |
1 if this is the initial trace of a contour, 0 if this is a continued trace of the same contour. Range: 0 or 1 Default: 1 |
zmap_downhill |
2 if downhill is on the left, 4 is downhill is on the right. Range:2 or 4 Default: 2 |
Data
There are no specific attributes for this type.
Fault
Attribute Name |
Contents |
zmap_feature_id |
Feature ID. Range: Any positive integer. Default: increments from 0 |
SEG I.D. |
The fault or line identifier (all vertices for the same line have the same identifier). Range: Any real number. Default: increments from 1 |
Header
Attribute Name |
Contents |
zmap_format_name |
Name of the format contained on the format file. Range: Maximum 47 characters Default: No default |
zmap_file_type |
Type of input file. Range: CNTR, DATA, FALT, VERT, TEXT or GRID. Default: No default |
zmap_line_length |
Length of physical records on formatted disk file. Range: Any integer Default: 80 |
zmap_number_of_lines |
Number of physical records that form a logical record. Range: Any integer Default: 1 |
zmap_output_header |
Only used for export. Set to Header if format information is to be placed at the top of the data file being exported. Set to No Header otherwise. Range: Header or No Header. Default: No Header |
zmap_attribute_list |
List of user attributes. |
zmap_null_value |
Special number used in place of missing or unknown Z-values. Must be a value not equal to any existing Z-value. Range: Any real number. Default: 1.0E+30 |
Feature Representation (Z-Map Writer)
In addition to the generic FME feature attributes that FME Workbench adds to all features (see About Feature Attributes), this format adds the format-specific attributes described in this topic.
Each written Z-Map element, regardless of its geometry type, shares attributes in the following table. Parameters specific to each of the supported element types are listed below.
Attribute Name |
Contents |
zmap_type |
The Z-Map geometric type of this entity. Range: zmap_point | zmap_line | zmap_text | zmap_data | zmap_fault | zmap_contour | zmap_vertex | zmap_none Default: No default |
zmap_null_value |
Special number used in place of missing or unknown Z-values. Must be a value not equal to any existing Z-value. Range: Any real number Default: 1E+031 |
zmap_file_type |
The Z-Map dataset file type. Range: zmap_record | zmap_contour | zmap_data | zmap_text | zmap_fault | zmap_vertex | zmap_grid Default: zmap_record |
LATITUDE |
The latitude of the first point. This only exists when the coordinate system is not specified or is Latitude/Longitude. Range: Any real Default: No default |
LONGITUDE |
The longitude of the first point. This only exists when the coordinate system is not specified or is Latitude/Longitude. Range: any real Default: No default |
X (EASTING) |
The x-coordinate. This only exists when the coordinate system is specified an is not Latitude/Longitude. Range: any real Default: No default |
Y (NORTHING) |
The y-coordinate. This only exists when the coordinate system is specified and is not Latitude/Longitude. Range: Any real Default: No default |
Points
There are no specific attributes for this type.
Lines
Attribute Name |
Contents |
SEG I.D. |
The fault or line identifier (all vertices for the same line have the same identifier). The values are generated by the writer. Range: Any real number. Default: increments from 1 |
Text
Attribute Name |
Contents |
TEXT_ANGLE |
The text rotation angle measured counter clockwise from the positive X-axis. Range: Any real number. Default: 0 |
TEXT_SIZE |
The text character size in inches. Range: Any real number. Default: 0 |
CHARACTER_TEXT |
The text label. Range: Maximum 47 characters Default: Blank |
Vertex
Attribute Name |
Contents |
zmap_feature_id |
Feature ID. Range: Any positive integer. Default: Increments from 0 |
SEG I.D. |
The fault or line identifier (all vertices for the same line have the same identifier). Range: Any real number. Default: Increments from 1 |
History
Attribute Name |
Contents |
zmap_history_text |
Content of the history record. Range: Any string. Default: No default |
Comment
Attribute Name |
Contents |
zmap_comment_text |
Content of the comment record. Range: Any string. Default: No default |