Digital Map Compilation and Desktop Mapping SP 240 Cartography Alex Chaucer
Spatial Information Technology Center Terms to go over for this chapter CRT DEM Digitizer DRG DOQ graphical user interface (GUI) Hard copy Peripherals plotter
Spatial Information Technology Center CRT Cathode-ray tube Aka computer monitor
Spatial Information Technology Center DEM Digital Elevation Model Raster data where each cell has an elevation value as a z-value From it can create Hillshade Slope Aspect 3D elevation
Spatial Information Technology Center Digitizer Devices to convert analog images into digital representation Also, a person who is digitizing
Spatial Information Technology Center DRG Digital Raster Graphics Scanned image of USGS topo map
Spatial Information Technology Center DOQ Uniform Aerial Photos from USGS Digital Ortho Quad
Spatial Information Technology Center graphical user interface (GUI) The interface between the user and the computer Often includes menus, buttons, display screen, etc. The ArcMap and ArcCatalog screens are each GUI for the ArcGIS Desktop software
Spatial Information Technology Center Hard copy Printed copy of machine output that is in readable form Ie. A paper map Softcopy would be a map as a digital file, such as a jpeg or a pdf
Spatial Information Technology Center Peripherals Associated equipment coupled to the computer (printers, plotters, scanners…)
Spatial Information Technology Center plotter A plotter is a device that develops an image (map) by controlling pen movement over the output medium Also used for large format printers