Manual Digitizing

Manual Digitizing
Manual digitizing involves the use of a digitizing tablet and cursor tool called a "puck", a plastic device holding a coil with a set of locator cross-hairs to select and digitally encode points on a map.

Manual Digitizing
In manual-digitizing techniques, a map or aerial photograph is placed on a digitizing table (Fig. 8) and a pointing device (called a cursor, puck, or mouse) is used to record coordinates of features to be extracted from the map.

- Manual digitizing
Manual digitizing using a digitizing tablet has been widely used. With this method, the operator manually traces all the lines from his hardcopy map using a pointer device and create an identical digital map on his computer.

A method of manual digitizing in which the operator has no graphic display on hand with which to see the digitized coordinates as they are captured.
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Manual digitizing: Digitization is done directly over the raster by the use of a digitizing tablet, which is a manual pointing device that creates an identical vector map on the computer screen, defining the vertices, points, line data, etc.

Hardware vendors continued to improve digitizing equipment, with manual digitizing tablets giving way to automated scanners at many GIS facilities.

[data capture] A method of manual digitizing in which the operator has no graphic display on hand with which to see the digitized coordinates as they are captured.

Modern GIS technology can automate this process fully for large projects using scanning technology; smaller jobs may require some manual digitizing (using a digitizing table).

Modern GIS technology has the capability to automate this process fully for large projects using scanning technology; smaller jobs may require some manual digitizing (using a digitizing table).

Digital databases and their sources have been well documented (Moore et al., 1993). Such data range from freely available via anonymous file transfer (FTP) over the Internet, to manual digitizing data from hardcover maps ( fig,.1.a,b,d).

The process of converting data from analogue paper maps into computer files is called digitizing. Modern GIS technology has the capability to automate this process fully for large projects; smaller jobs may require some manual digitizing.

See also: Digitizing, Information, GIS, Geographic, Map