21. Distance: This
is used in GIS same as used in common language.
22. Distance to
Selection: The Distance to selection
field is used for expressing criteria about the distance between objects on
the earth surface and other objects on the earth surface that have been
selected. This is particularly useful in the selection of objects beneath a
study area surface.
23. Navigation: In GIS
arena navigation means creation of path between two or N-number of points
on the plotted earth surface with taking the height factor of each point as
a prime concern.
24. Position: The Position field related
to any object on the earth surface is specifically used for topological
queries so that you can search for all the objects satisfying a condition,
AND that are contained in an object list (in that their location geometry
is included in one of the selected objects). For example find all the Plots
which intersect, or cross, a particular stretch of road. Find also all the
buildings situated within a block (Neighborhood). Using a museum as the
start object, search for all the Plots situated 100 meters away.
25. Cross Country: In GIS
arena this means both off-road and on-road movements. This is specifically
used in military convoy movement sense.
26.
Display: In GIS sense this means showing or hiding
objects plotted on the earth surface’s study area.
27. View: This
means one can save a view of the location with displayed objects on the
surface of study area at a particular instance of time.
28. Spatial data: Spatial
data means a unit of record of objects of study area of the earth’s
surface.
29. Spatial Database: Spatial database means related records of the
objects of study area of the earth’s surface which may be any record
associated with the mapped area.
30. Spatial Information: Spatial information means data or record or
bunch of records making a sense in a particular analysis of the study area
of the earth’s surface.
31. Analysis: This is the assessment of
study area of the earth’s surface in a particular context.
32. Hydrology: This depicts the study of
water related stuffs. In GIS arena this means study of water distribution,
study of Ground water survey and many more.
33. Geometry: In GIS
sense Geometry field represents the shape, size, location of the objects on
the earth’s surface.
34. Grid: Grid is the lattice
represented on the study area of the earth’s surface.
35. Graticule: Graticule is the grided
surface on the globe showing the intersections of parallels of latitude and
meridians of longitude.
36. Latitude: Latitudes or parallels of
latitudes are the horizontal circles on the globe showing the measurement
of object’s location horizontally on the earth’s surface in terms of
radians measured from the centre of the earth. The biggest parallel of
latitude on the earth’s surface is equator and the parallels of latitude
dimension decreases gradually from the equator towards the North and South
Pole. It is measured in terms of Degrees, Minutes and Seconds.
37. Longitude: Longitudes or meridians of
longitudes are the vertical circles on the globe showing the measurement of
object’s location vertically on the earth’s surface in terms of radians
measured from the centre of the earth. The dimension of all meridians of
longitudes is same and they converge with each other on the North and South
Pole making a point of interaction on the earth’s surface on the North and
South Pole. It is also measured in terms of Degrees, Minutes and Seconds.
Note: The dimension of equator and meridians of longitude is same.
38. Parallels: Same as Latitude. Refer to
latitude for more detail.
39.
Meridians: Same as longitude. Refer to longitude for more
detail.
40. Prime Meridian: This is the central meridian of longitude. The
significance of prime meridian is that it divides the world into time zone
with respect to GMT (Greenwich Mean Time). Note: Greenwich is the place in
England from where the prime meridian passes through. So for time
measurement the reference point is Greenwich in GMT time zone.
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It's a good knowledge for beginner
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