Map GPS Coordinates - GPS Map Coordinates ... - Global Mapper

Global Mapper User's Manual
• LAYER_BOUNDS - specifies that the contour generation should use the bounds of the loaded
layer(s) with the given filename. For example, to generate contours to the bounds of the file
"c:\test.tif", you would use LAYER_BOUNDS="c:\test.tif". Keep in mind that the file must be
currently loaded.
• LAYER_BOUNDS_EXPAND - specifies that the operation should expand the used
LAYER_BOUNDS bounding box by some amount. The amount to expand the bounding rectangle by
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.
• SIMPLIFICATION - specifies the simplification threshold to use when generating the contours. This
specifies how far off a straight line (in the units of the current projection) that a point has to be before
it is kept. Generally you should not specify a simplification value as the default value of one tenth of
the sample spacing works quite well. This is an option for advanced users only.
• GEN_HEIGHT_AREAS - generate area features colored based on the current elevation shader in
addition to generating contour lines. Use a value of YES to enable the generate of the height areas.
• GEN_SPOT_ELEVATIONS - generate spot elevations at min/max elevations. Use a value of YES to
enable the generate of min/max spot elevation points.
• SINGLE_LEVEL_ONLY - specifies that the INTERVAL value is actually a value indicating the only
height that a contour should be generated at. Use a value of YES to turn this functionality on.
• FILL_GAPS - specifies that small gaps in between and within the data sets being used to generate the
contours will be filled in by interpolating the surrounding data to come up with an elevation for the
point in question. This option is on by default, specify FILL_GAPS=NO to turn off.
• LAYER_DESC - specifies the name to assign to this layer. If no layer description is provided, the
default name of "GENERATED CONTOURS" will be used.
• INC_UNIT_SUFFIX - specifies whether or not a unit suffix (either "m" or "ft") should be appended
to the numeric label of generated features. By default this is enabled, so specify
INC_UNIT_SUFFIX=NO to turn unit suffixes off. This is useful if the data the contours are being
generated over doesn't actually represent elevation.
• SMOOTH_CONTOURS - specifies whether or not generated contour line and area features should
have smoothing applied to improve appearance. This option is enabled by dfault. Use
SMOOTH_CONTOURS=NO to disable smoothing.
• 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_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.
Map GPS Coordinates - GPS Map Coordinates - GPSCoordinates Map 237