Open Printable/Searchable Copy - Global Mapper

should be specified in the current global projection. For example, if you have a UTM/meters
projection active and want to expand the bounds retrieved from the LAYER_BOUNDS parameter by
100 meters on the left and right, and 50 meters on the top and bottom, you could use
LAYER_BOUNDS_EXPAND="100.0,50.0". You can also specify a single value to apply to all 4
sides, or supply 4 separate values in the order left,top,right,bottom.
• FILL_GAPS - specifies that small gaps in between and within the data sets being combined will be
filled in by interpolating the surrounding data to come up with an elevation for the point in question.
This option is off by default, specify FILL_GAPS=NO to turn off.
• POLYGON_CROP_FILE - specifies the full path and filename of a vector file containing a polygon
feature to which the operation should be cropped. If multiple polygons are found in the specified file
the polygon which has the largest intersection with the data to be combined will be used as the crop
polygon (see POLYGON_CROP_USE_ALL or POLYGON_CROP_USE_EACH for exceptions).
• POLYGON_CROP_NAME - specifies the name of a polygon shape previously defined using the
DEFINE_SHAPE command to which the export should be cropped. The coordinates in the shape
need to have been provided in whatever projection the new terrain layer will be in (i.e. the current
projection).
• POLYGON_CROP_USE_ALL - specifies that if a POLYGON_CROP_FILE is specified that
contains multiple polygons, the operation will be cropped to all polygons in that file rather than just
the best-fit polygon.
• POLYGON_CROP_USE_EACH - specifies that if a POLYGON_CROP_FILE is specified that
contains multiple polygons, the operation will generate a separate export for each polygons in that file
rather than just the best-fit polygon. See the POLYGON_CROP_BBOX_ONLY and
POLYGON_CROP_NAME_ATTR options for naming and other options when using this parameter.
Use POLYGON_CROP_USE_EACH=YES to enable.
• POLYGON_CROP_BBOX_ONLY - specifies that if the POLYGON_CROP_USE_EACH parameter
is specified that each export should just be cropped to the bounding box of each polygon rather than
the actual boundary of the polygon. Use POLYGON_CROP_BBOX_ONLY=YES to enable only
cropping to the bounding box.
• POLYGON_CROP_NAME_ATTR - used to control the filenames generated when cropping to
multiple polygons using the POLYGON_CROP_USE_EACH parameter. This should be the actual
name of the attribute from the polygon features to use for naming, or the special values or . If no value is provided, the exported files will be sequentially
numbered.
• POLYGON_CROP_FOLDER_ATTR - used to control the filenames generated when cropping to
multiple polygons using the POLYGON_CROP_USE_EACH parameter. This should be the actual
name of the attribute from the polygon features to use as a folder name before the actual filename or
the special values .
DEFINE_PROJ
Global Mapper User's Manual
The DEFINE_PROJ command allows a projection (including datum) to be associated with a name. The
projection name can then be used in later IMPORT, IMPORT_ARCHIVE, IMPORT_ASCII, and
LOAD_PROJECTION commands to specify a projection as needed.
The DEFINE_PROJ command consists of a single command line followed by a series of lines describing the
projection in the format of an ESRI PRJ file. The easiest way to determine the text for a projection is to setup
a projection on the Projection tab of the Tools->Configuration and then use the Save to File button to create a
new .prj file. Then just open the .prj file up in Notepad and copy the contents to the lines following the
DEFINE_PROJ command line.
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