关于gps应用的论文
The social economic main factor includes residents' ground, transportation net, state etc. Residents' ground center place that is mankind to live and carry on various activity, should mean a quality characteristic of shape, building of residents' ground, the administration grade and population few etc. The transportation net is the generic name of various transportation, it includes the land transportation, water road transportation, air transportation and pipeline to transport several etc. On the map should the exactitude mean the type and grade, position and shape of the transportation net, go through degree and transport ability and other main factor of relation etc. The state classifieds into the area state and other state. The area state includes national boundary(have already settle, undecided, province, autonomous region, central and direct jurisdiction city boundary, autonomy state, alliance, direct jurisdiction city boundary, county, autonomy County, ensign boundary etc.; Other state includes region field, cease fire line boundary and forbids area boundary etc..
3.2.2 The special subject
It is objective to the relevant population, income, work agriculture production value, the transportation condition and the other with the juice data and document etc. of the abstract thing, know together as a special subject information.
In the electronics map, the special subject main factor can adopt the form of the special subject diagram to mean. Can also ask for help the multimedia technique and the animation technique to carry on the manifestation exportation.
3.2.3 Analyze, programming and the estimate result etc.
Carry on to the natural main factor of the objective existence and the phenomenon of the abstraction analysis, can analysis result manifestation is the special subject diagram and the form of the animation, if see through analysis, the slope ascent to analysis, soil analysis, geography analysis etc..
The building, road, street etc. of the programming can adopt various forms to carry on a manifestation in the electronics map; Predict the result can also adopt the dynamic state map,3D model and animation form etc. to carry on a description. such as city planning, weather forecast.
4 What time viewpoint
The calculator and electronics technical development and applied, make the map learn to take place the graveness change, change the production of the traditional map and apply mode, make the traditional emulation map learn into the numerical map of the modern to learn. But should also see sword, the design principle and method of the electronics map still don't to the utmost have such as the place of[with] person's idea, needing to be further perfect; Mean the electronics map a contents to haven't yet become standard, the production existence of the electronics map didn't unify standard, being in need of the norm that should obey, each kind of product is miscellaneous disorderly have no the situation of the chapter; The electronics map product can't also satisfy the need of the customer completely. Design aspect in the customer interface, exist too professional tendency turn, should humanize more, person's machine hands over with each other function to also need further to build up; Mean aspect in the contents of the electronics map, exist to pursue an overall problem too, should Be satisfying the premise of its use under, as far as possible simple, understand, convenient user analysis, search; Moreover, the electronics map to soft, the dependence of the hardware environment is very strong, needing to use paper to lie the quality diagram still at some special situations, therefore still needing to consider the result that it sprays to draw diagram while design the electronics map. Be showed from this, the need that gave or get an electric shock map to need from the customer set out, taking into continuously perfect, and press the person's understanding mental reasonable to make sure it means a contents.
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