DPI is an abbreviation for dots (or pixels) per inch, a measure of the resolution of graphic displays.
DTM stands for digital terrain model, a method of transforming elevation data into a contoured surface or a three-dimensional display.
DPI: Dots (or Pixels) Per Inch. A measure of the resolution of graphics displays.
DOTS PER INCH
DPI A unit of measurement expressing the resolution of scanners, monitors, or printing devices. The greater the number of dots per inch, the more detail may be captured or displayed by the device.
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Dots Per Inch (DPI) Often referred to in printing/plotting processes, it related to how sharply an image may be represented. More dots per inch implies that edges of images will be more precisely represented.
First, screen resolution is measured and expressed as PPI (Pixels Per linear Inch); often mistakenly expressed as DPI (Dots Per Inch). (DPI is used to express printer and scanner resolution).
As the dots per inch (DPI) increases, so does the file size. Most tax maps should be captured with a scan resolution of 300-400 DPI.
Optical scanners can have much higher resolution than human hands, from 200 DPI to 800 DPI or higher.
Independent DPI for vector and raster
No limit on vector DPI resolution
Raster resample of DPI resolution
Infinite queues for plotters
Add or delete jobs in queues
Add or delete queues
Variable gamma settings
Variable resolution settings e.g.
Use the Options to adjust the DPI -- for starters keep your pixel dimensions below 1200. Later you can make this larger once you see how long it takes. Be sure to click the Save World File option. Save these into your Clip folder.
The Apple Macintosh system was originally designed so that the screen resolution and the resolution of the dot-matrix printers sold by Apple were easily scaled: 72 PPI for the screen and 144 DPI for the printers.
If you still have time, experiment with exporting to different formats (Windows BMP, JPEG, etc.) and different export DPI resolutions. As you import these other graphics formats, you will see differences in image quality.
Modern computer-monitors typically display about 72 to 130 pixels per inch (PPI), and some modern consumer printers can resolve 2400 dots per inch (DPI) or more; ...
 See also: Software, Information, Format, Resolution, Image
  
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