Brunton Multi-Navigator Especificações descarregar pdf (Página 119)

Import Map Features and Comments from Map File

Allows you to import the Map Features and Comments from an existing map file into the currently

loaded map.

Only the Features and Comments which will be located on the current map will be imported.

There is only 1 input required, that is the name of the map file you want to import the Features and

Comments from.

If any Features or Comments are imported the currently loaded map must be saved to make these

permanent.

Importing DRG Maps

For Registered (purchased) copies only.

Introduction

Importing a Single DRG Map

Importing a DRG CD or Folder

Importing DRG's with only a .tfw File

(or other geo-

reference file)

While it is simpler to be able to import the DRG maps, it is possible, for those which cannot be

imported, to calibrate the maps by hand using 3 Lat/Long points, 3 corners of the map are quite

adequate for an accurate calibration.

Introduction

Use this option to import maps of the supported map image types (TIF, BMP, PNG, JPG, SID,

ECW, .....) An example is the USGS DRG raster maps provided by the USA government.

DRG

stands for

Digital Raster Graphic

but are really images of maps in a digital image format

which have the map geo-

referencing supplied either as a separate file or embedded within the image

format.

Examples

Some images are supplied with a

.tfw

file, a

.tfw

file is a simple text file which contains very

basic calibration (georeferencing) information.

Geotiff

image file has the calibration (georeferencing) data embedded within the image file.

Georeference information may also be supplied in a .jgw file for JPG images, a .sdw file for SID

images, ....

OziExplorer has various levels for importing these maps and try's to select the method which has the

most information to give the best calibration and other parameters.

The georeference information is obtained in this order of priority:

If the file is a Geotiff and the information is in the correct format or,

from the TFW file if it is available or,

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