Digitizer
A device that consists of a table and a cursor with crosshairs and keys used to record the locations of map features as x,y coordinates.
DOQ ...
Digitizer A device used to capture planar coordinate data, usually as x and y coordinates, from existing analog maps for digital use within a computerized program such as a GIS. Also called a digitizing table.
The digitizer is sensitive to electrical interference- if you put your laptop on the table while digitizing you'll get bizarre results.
Once you're happy with the line you've digitized, click "Save Edits" in the Editor menu.
Digitizers were popularized in the mid 1970s and early 1980s by the commercial success of the ID (Intelligent Digitizer) and BitPad manufactured by the Summagraphics Corp.
Digitizer - An electronic device for capturing digital data from paper maps. Small-size digitizers are usually referred to as digitizing tablets, and large-size ones are called digitizing tables.
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"Digitizer" redirects here. For the computer device, see Digitizing tablet. For the digitizer in Tablet PC's, see Tablet PC.
The digitizer should concentrate solely on capturing the exact nature of the features. All maps shall be edge matched prior to digitization to eliminate cartographic errors and reduce digital problems.
Current meter digitizer; Command
CMEDS
Comprehensive Mapping and Engineering Data System (LES) ...
In order to use a digitizer with i.points, at least one digitizer driver besides "none" (the on-screen digitizer) must be available in the digitcap file.
digitizer p. 70 a manually controlled machine that records a spatial measurement usually on the surface of a tablet. DIME p.
Tics are used to register map sheets when they are mounted on a digitizer and to transform the coordinates of a coverage (e.g., from digitizer units [inches] to UTM meters).
This is normally achieved manually by a human operator using a digitizer, although methods of automated digitizing and semi-automated digitizing also exist. The result of digitizing is a digital map in vector form.
online A state (referring to equipment such as computers, plotters, printers, and digitizers) of being turned on and actively communicating with a computer or computer network.
can interface with commercial printers, plotters, digitizers, and databases to develop new data as well as manage existing data.
can display and manipulate vector data for roads, streams, boundaries, and other features.
Input devices include digitizers and scanners. A digitizer is the device used for selecting features from a hard copy map. This process also registering the collected features to a coordinate system.
A digitizer produces vector data as an operator traces points, lines, and polygon boundaries from a map. Scanning a map results in raster data that could be further processed to produce vector data.
Performance in terms of pulse repetition rate, maximal ranging distance, and full-waveform digitizers of the commercially available ALS systems has improved at a rapid rate, hand-in-hand with reduced acquisition times and production costs.
Actually, it is a complex technology beginning with the digital representation of landscapes ca ptured by cameras, digitizers, or scanners, in some cases transmitted by satellite, and, with the help of computer systems, stored, checked, manipulated, ...
Resolution: The smallest detectable distance between features recorded on a digitizer, displayed on a graphics screen, or drawn by a plotter.
"Display Resolution"; The density of the pixels that compose an image.
An x-y coordinate digitizer consists of a large tablet and a puck. The tablet is essentially a table with a wire grid (instead of a grid paper) running through it.
A digitizer is a special table embedded below the surface with a series wires. The wires are arranged in tightly spaced horizontal rows and vertical columns.
Now the digitizing process begins and one can assume that the digitizer is infinitely correct. BUT what of the hand (shaking, sloppy, distracted, tired, lazy, impatient, etc.) of the operator.
The process of using a digitizer to encode the locations of geographic features by converting their map positions to a series of x,y coordinates stored in computer files. Pushing a digitizer button records an x,y coordinate.
This last result may be a function of the scale of the source data (spot elevations derived from low altitude aerial photography with a stereo digitizer at a density of approximately 10 m) and/or the method used to calculate drainage areas (i.e.
The coverage to transform must contain coordinates in digitizer units. Corresponding tics must have the same Tic-IDs in order to compare the input coverage tics to those of the output coverage.
Input device: mouse or digitizing tablet (tablet on Windows requires WINTAB driver or Bentley's Windows Digitizer Tablet Interface)
Output Device: Majority of industry-standard devices supported; works with Windows-supported printers ...
A visible symbol guided by a keyboard, joystick, tracking ball, or digitizer, usually in the form of a cross or blinking symbol, that indicates a position on a computer screen.
Peripherals are items of computer equipment such as plotters, printers, scanners, digitizers, and graphics displays.
The "GIS is a tool" position sees GIS as the use of a particular class of software, the associated hardware tools such as digitizers and plotters, and digital geographic data in order to advance some specific purpose.
staff - include System Manager, Database Manager, System Operator, System Analysts, Digitizer Operators - a typical resource management agency GIS center might have a staff of 5-7 ...
If the data to be used are not already in digital form, that is, in a form the computer can recognize, various techniques can capture the information. Maps can be digitized, or hand-traced with a digitizer, to collect the coordinates of features.
in a certain projection you select at least two graticule intersection points on the map, then use the projection forward equations to calculate their X,Y rectangular coordinates. These X,Y coordinates you use to reference your map on the digitizer.
Surfer has a robust set of data import/export utilities including digitizer input. The Surfer demo version included in the MapCalc Learner-Academic CD has all of the functionality of the commercial system with the exception of plotter support.
digitizer-Device for scanning an image and converting it into numerical format. directional filter-Mathematical filter designed to enhance on an image those linear features oriented in a particular direction.
 See also: Digitize, Information, GIS, Software, Map
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