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

Global Mapper User's Manual
• FEATHER_BLEND_POLY_FILE (raster only) - specifies that the polygon boundary to feather blend
this layer against should come from the specified file.
• BAND_SETUP (raster only) - specifies what bands of data from the raster file being loaded should be
used to populate the red, green, and blue color channels when displaying the image. This is useful for
multi-spectral imagery which may have more than 3 color bands. The default band setup will be to
use the first three bands as follows: BAND_SETUP="0,1,2". Note that not all raster formats support
specifying a non-default band setup.
• LABEL_FIELD - specifies the name of the attribute field to use as the label attribute for the features
in the file. By default the attribute-based labeling will only be applied to those features that don't
already have a label, but if the LABEL_FIELD_FORCE_OVERWRITE attribute is set to YES then
all features will have their labels replaced.
• LABEL_FIELD_FORCE_OVERWRITE - specifies that the LABEL_FIELD attribute value should
be applied to all feature labels, not just those that don't already have labels. Use
LABEL_FIELD_FORCE_OVERWRITE=YES to enable.
• LABEL_PREFIX - specifies the prefix to prepend to attribute-based labels
• LABEL_SUFFIX - specifies the suffix to append to attribute-based labels
• ELEV_FIELD - specifies the name of the attribute field to use as the elevation value for the features
in the file.
• AREA_TYPE - specifies the name of the Global Mapper type to use for area features imported from
the file.
• LINE_TYPE - specifies the name of the Global Mapper type to use for line features imported from
the file.
• POINT_TYPE - specifies the name of the Global Mapper type to use for point features imported from
the file.
• LAYER_DESC - specifies a description to use for the layer when displaying it in the Overlay Control
Center. This overrides the default description based on the filename or other information within the
file.
• GCP - specifies a single ground control point for use in rectifying a file. The GCP record consists of 5
comma-delimited fields, the control point name, the pixel X and Y coordinates, and the corresponding
ground X and Y coordinates. A separate GCP parameter and value should be used for each control
point used in the rectification. As an alternative, the GCP_FILENAME parameter (see below) can be
used instead.
• GCP_FILENAME - specifies the name of a control point file used to rectify the file being imported.
• GCP_PROJ_NAME - specifies the name of the projection that the ground control points are provided
in. This name must have been defined with a prior DEFINE_PROJ command. Use this if you want to
specify control points in a projection other than what you want to define as the native projection for
the file. Note that you must also explicitly specify the name projection of the file using either the
PROJ_NAME, PROJ_EPSG_CODE or PROJ_FILENAME parameters.
• GCP_PROJ_FILENAME - specifies the name of the projection (.prj) file that contains the projection
definition for the projection that the ground control points are provided in. Use this if you want to
specify control points in a projection other than what you want to define as the native projection for
the file. Note that you must also explicitly specify the name projection of the file using either the
PROJ_NAME, PROJ_EPSG_CODE or PROJ_FILENAME parameters.
• GCP_PROJ_EPSG_CODE - specifies the EPSG code of the projection that the ground control points
are provided in. Use this if you want to specify control points in a projection other than what you want
to define as the native projection for the file. Note that you must also explicitly specify the name
projection of the file using either the PROJ_NAME, PROJ_EPSG_CODE or PROJ_FILENAME
parameters.
• RECTIFY - specifies the rectification method to use for rectifying this file. Valid value are LINEAR,
HELMERT, AFFINE, POLYNOMIAL, and TRIANGULATION. If you do not specify a rectification
type but do provide at least two ground control points, best rectification method will automatically be
Map GPS Coordinates - GPS Map Coordinates - GPSCoordinates Map 249