Reader Directives
The directives processed by the HYD93 reader are listed below. The suffixes shown are prefixed by the current
in a mapping file. By default, the
for the HYD93 reader is HYD93.
DATASET
Required/Optional:Required
This is the name of one or more HYD93 files. Extensions for HYD93 files are.a93for ASCII-encoded or.b93for binary.
An example of theDATASETkeyword in use is:
HYD93_DATASET /usr/data/myhyd93file.a93
Workbench Parameter:NGDC Hydrographic Surveys Data Exchange (HYD93) File(s)
SEARCH_ENVELOPE
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 interact with the bounding box are returned.
If all four coordinates of the search envelope are specified as 0, the search envelope will be disabled.
Mapping File Syntax
Note:If all four coordinates of the search envelope are specified as zero, the search envelope will be disabled.
Required/Optional
Optional
Workbench Parameter
Minimum X, Minimum Y, Maximum X, Maximum Y
SEARCH_ENVELOPE_COORDINATE_SYSTEM
This directive specifies the coordinate system of the search envelope if it is different than the coordinate system of the data.
TheCOORDINATE_SYSTEM
directive, which specifies the coordinate system associated with the data to be read, must always be set if theSEARCH_ENVELOPE_COORDINATE_SYSTEM
directive is set.
If this directive is set, the minimum and maximum points of the search envelope are reprojected from theSEARCH_ENVELOPE_COORDINATE_SYSTEM
to the readerCOORDINATE_SYSTEM
prior to applying the envelope.
Required/Optional
Optional
Mapping File Syntax
Workbench Parameter
Search Envelope Coordinate System
CLIP_TO_ENVELOPE
This directive specifies whether or not FME should clip features to the envelope specified in theSEARCH_ENVELOPE
directive.
Values
YES | NO (default)
Mapping File Syntax
Workbench Parameter
Clip To Envelope