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1、地图投影与坐标系Projectionoftheworldmapof3.5.1Theprojectionmapoftheworldareconsideredtoensurethattheoveralldeformationisnotglobal,accordingtodifferentrequirements,orneedtohaveequiangularproductproperties,including:differentialparallelpolyconicprojection,tangen
2、tdifferenceparallelpolyconicprojection(1976scheme),arbitrarypseudocylindricalprojection,isconformalcylindricalprojectioncut.Projectionofthe3.5.2hemisphericmapTheeasternandwesternhemispherehaveequalhorizontalprojectionandhorizontalaxisazimuthalprojectio
3、n;thesouthernandnorthernhemispherehaveequalaxisazimuthalprojection,equilateralaxisazimuthalprojectionandequalaxisazimuthalprojection.Mapprojectionof3.5.3continents1)projectionmapofAsia:obliqueazimuthalequalareaprojection,bonneprojection.2)projectionofE
4、uropeanmaps:obliqueaxisequalareaazimuthalprojection,andequilateralconicalprojection.3)projectionmapsofNorthAmerica:obliqueazimuthalequalareaprojection,bonneprojection.4)projectionsofSouthAmericanmaps:oblique,azimuthal,equalarea,projection,andprojection
5、.5)projectionoftheAustralianMap:equalazimuthalprojectionoftheobliqueaxis,isometricprojectionoftheequilateralaxis.6)projectionofLatinAmericanmaps:obliqueaxisequalareaazimuthalprojection.3.5.4variousmapprojectioninChina1)Chinesenationalmapprojection:obli
6、queazimuthalequalareaprojection,obliqueazimuthalconformalprojection,projection,pseudoazimuthalprojection,Peninaistheaxialareaofconicprojection,normalsecantconicconformalprojection.2)projectionofthemapofChina'sprovinces(regions):equalaxis,isometriccut,c
7、onicprojection,equalaxisequalareasecantconeprojection,equilateralcylindricalprojection,andGauss-gramprojection(broadband).3)projectionoflargescalemapsofChina:polyhedralprojection(NorthernWarlordsperiod),equalcutconeprojection(preLambertprojection)(prel
8、iberation),andprojectionofGauss-gram(afterliberation).4.Gauss-KruegerprojectionBecauseofthisprojectionisdrawnupbytheGermanmathematician,physicistandastronomerGaussin1820s,aftertheGermangeodesistKruegerin1912ontheprojectionformulatobeadd
