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

Global Mapper User's Manual
• CONTRAST_SHARED (raster only) - specified whether or not the contrast adjustment for this layer
will share the adjustment with other contrast-adjusted layers in order to ensure a consistent
modification across layers. Use CONTRAST_SHARED=YES to enable contrast sharing.
• CONTRAST_STRETCH_SIZE (raster only) - specifies the number of standard deviations from the
mean to use in a PERCENTAGE contrast adjustment. The default is 2.0.
• AUTO_CONTRAST (raster only) - DEPRECATED, use CONTRAST_MODE instead - specifies
whether to automatically calculate and apply a 2 standard deviation contrast adjustment to the image.
Use AUTO_CONTRAST=YES to turn on. Anything else turns it off.
• CLIP_COLLAR (raster only) - specifies whether to clip the collar off of the image. The following
values are supported for cropping:
♦ NONE - no collar cropping is performed.
♦ AUTO - automatically remove a USGS DRG-style collar or a 3.75 DOQQ collar
♦ LAT_LON - crop the collar to a a specified set of bounds specified in arc degrees in the
native datum of the layer. The bounds should be specified using the
CLIP_COLLAR_BOUNDS parameter.
♦ NATIVE - crop the collar to a specified set of bounds specified in the native projection
system and datum of the layer. The bounds should be specified using the
CLIP_COLLAR_BOUNDS parameter.
♦ PIXELS - crop a given number of pixels off of each side of the layer. The number of pixels to
remove from each side should be specified using the CLIP_COLLAR_BOUNDS parameter.
♦ SNAP_DEGREES - crop the collar by snapping each edge to a specified degree boundary
specified in arc degrees in the native datum of the layer. The bounds should be specified
using the CLIP_COLLAR_BOUNDS parameter. For example to crop the west and east edges
to a half degree boundary and the north and south edges to a one degree boundary, use the
following: CLIP_COLLAR_BOUNDS=0.5,0.25,0.5,0.25.
♦ POLY - crop to a polygon provided with the CLIP_COLLAR_POLY parameter.
• CLIP_COLLAR_BOUNDS (raster only) - specifies the bounds of the collar to be clipped off when
the CLIP_COLLAR parameter is enabled. The coordinates should be specified in arc degrees, native
layer coordinates, or pixel counts as a comma-delimited list going west,south,east,north. For example,
CLIP_COLLAR_BOUNDS=34.25,-109.0,34.375,-108.875.
• CLIP_COLLAR_POLY (raster only) - specifies the name of the previously defined shape (with the
DEFINE_SHAPE command) to crop the layer to when the CLIP_COLLAR=POLY parameter is
used. The coordinates in the shape must have been defined in the native projection system of the layer
being loaded.
• ZOOM_DISPLAY - specifies when the map should be displayed and when it should be hidden based
on the display zoom scale. This command will be formatted as a name from the list, below followed
by 2 numeric paramters. For example, use ZOOM_DISPLAY="SCALE,25000,0" to have a map
display only when zoomed in below 1:25000 scale.
♦ ALWAYS - always display the map. The numeric parameters are ignored.
♦ PERCENT - display the map when the map bounding box is a certain percentage of the
screen size. For example, use ZOOM_DISPLAY="PERCENT,10,0" to display the map when
its bounding box is at least 10% of the screen size.
♦ SCALE - display the map when the current display is at or below a certain scale. For
example, use ZOOM_DISPLAY="SCALE,25000,0" to display the map when the current
draw scale is at or below 1:25000.
♦ SCALE_RANGE - display the map when the current display is below a range of scale value.
For example, use ZOOM_DISPLAY="SCALE_RANGE,25000,100000" to display the map
when the current draw scale is between 1:25000 and 1:100000.
• COLOR_INTENSITY (elevation and raster only) - specifies the color intensity to use when adjusting
the brightness of pixels in the overlay. Valid values range from 0 to 20, with 0 being completely
black, 10 being no alteration, and 20 being completely white. For example, to make an image slightly
Map GPS Coordinates - GPS Map Coordinates - GPSCoordinates Map 246