worldmap文档格式.docx

worldmap文档格式.docx

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ora3-by-2referencingmatrixthattransformsrasterrowandcolumnindicesto/fromgeographiccoordinatesaccordingto:

[lonlat]=[rowcol1]*R

IfRisareferencingmatrix,itmustdefinea（non-rotational,non-skewed）relationshipinwhicheachcolumnofthedatagridfallsalongameridianandeachrowfallsalongaparallel.

h=worldmap（...）returnsthehandleofthemapaxes.

Forcylindricalprojections,worldmapusestightmapsettheaxislimitstightaroundthemap.Ifyouchangetheprojection,orjustwantmorewhitespacearoundthemapframe,usetightmapagainoraxisauto.

Examples

Example1

Setupaworldmapanddrawcoarsecoastlines:

worldmap（'

）

loadcoast

plotm（lat,long）

Example2

Setupworldmapwithlandareas,majorlakesandrivers,andcitiesandpopulatedplaces:

ax=worldmap（'

）;

setm（ax,'

Origin'

[01800]）

land=shaperead（'

landareas'

UseGeoCoords'

true）;

geoshow（ax,land,'

FaceColor'

[0.50.70.5]）

lakes=shaperead（'

worldlakes'

geoshow（lakes,'

blue'

rivers=shaperead（'

worldrivers'

geoshow（rivers,'

Color'

cities=shaperead（'

worldcities'

geoshow（cities,'

Marker'

.'

red'

Example3

DrawamapofAntarctica:

antarctica'

antarctica=shaperead（'

true,...

'

Selector'

{@（name）strcmp（name,'

Antarctica'

）,'

Name'

}）;

patchm（antarctica.Lat,antarctica.Lon,[0.510.5]）

Example4

DrawamapofAfricaandIndiawithmajorcitiesandpopulatedplaces:

worldmap（{'

Africa'

'

India'

}）

landareas.shp'

geoshow（land,'

[0.150.50.15]）

Example5

MakeamapofthegeoidoverSouthAmericaandthecentralPacific:

worldmap（[-5050],[160-30]）

loadgeoid

geoshow（geoid,geoidrefvec,'

DisplayType'

texturemap'

geoshow（lat,long）

Example6

DrawamapofterrainelevationsinKorea:

loadkorea

h=worldmap（map,refvec）;

set（h,'

Visible'

off'

geoshow（h,map,refvec,'

colormap（demcmap（map））

Example7

MakeamapoftheUnitedStatesofAmerica,coloringstatepolygons:

USA'

geoshow（ax,lat,long,...

'

polygon'

[.45.60.30]）

states=shaperead（'

usastatelo'

faceColors=makesymbolspec（'

Polygon'

...

{'

INDEX'

[1numel（states）],'

...

polcmap（numel（states））}）;

%NOTE-colorsarerandom

geoshow（ax,states,'

SymbolSpec'

faceColors）

Example8

韩国朝鲜地图

usamap

ConstructmapaxesforUnitedStatesofAmerica

usamapstate

usamap（state）

usamap'

conus'

usamap（'

usamap（latlim,lonlim）

usamap（Z,R）

h=usamap（...）

h=usamap（'

all'

allequal'

usamapstateorusamap（state）constructsanemptymapaxeswithaLambertConformalConicprojectionandmaplimitscoveringaU.S.stateorgroupofstatesspecifiedbyinputstate.statemaybeastringoracellarrayofstrings,whereeachstringcontainsthenameofastateor'

DistrictofColumbia'

.Alternatively,statemaybeastandardtwo-letterU.S.PostalServiceabbreviation.Themapaxesiscreatedinthecurrentaxesandtheaxislimitsaresettightaroundthemapframe.

orusamap（'

）constructsanemptymapaxesfortheconterminous48states（i.e.excludingAlaskaandHawaii）.

usamapwithnoargumentsasksyoutochoosefromamenuofstatenamesplus'

usamap（latlim,lonlim）constructsanemptyLambertConformalmapaxesforaregionoftheU.S.definedbyitslatitudeandlongitudelimitsindegrees.latlimandlonlimaretwo-elementvectorsoftheform[southern_limitnorthern_limit]and[western_limiteastern_limit],respectively.

usamap（Z,R）derivesthemaplimitsfromtheextentofaregulardatagridgeoreferencedbyR.Riseithera1-by-3vectorcontainingelements:

h=usamap（...）returnsthehandleofthemapaxes.

）constructsthreeemptyaxes,insetwithinasinglefigure,fortheconterminousstates,Alaska,andHawaii,respectively,usingprojectionparameterssuggestedbytheU.S.GeologicalSurvey.Thehandlesforthethreemapaxesarereturnedinh.h

（1）isfortheconterminousstates,h

（2）isforAlaska,andh（3）isforHawaii.

）constructsthemapaxeswithAlaskaandHawaiiatthesamescaleastheconterminousstates.

Remarks

usamapusestightmapsettheaxislimitstightaroundthemap.Ifyouchangetheprojection,orjustwantmorewhitespacearoundthemapframe,usetightmapagainoraxisauto.

axes（h（n））,wheren=1,2,or3,makesthedesiredaxescurrent.

set（h,'

on'

）makestheaxesvisible.

ButtonDownFcn'

selectmoveresize'

）allowsinteractiverepositioningoftheaxes.set（h,'

uimaptbx'

）restorestheMappingToolboxinterfaces.

axesscale（h

（1））resizestheaxescontainingAlaskaandHawaiitothesamescaleastheconterminousstates.

MakeamapofAlabamaonly:

Alabama'

alabamahi=shaperead（'

usastatehi'

{@（name）strcmpi（name,'

geoshow（alabamahi,'

[0.31.0,0.675]）

textm（alabamahi.LabelLat,alabamahi.LabelLon,alabamahi.Name,...

HorizontalAlignment'

center'

MaparegionextendingfromCaliforniatoMontana:

figure;

ax=usamap（{'

CA'

MT'

set（ax,'

latlim=getm（ax,'

MapLatLimit'

lonlim=getm（ax,'

MapLonLimit'

true,'

BoundingBox'

[lonlim'

latlim'

]）;

[0.50.51]）

lat=[states.LabelLat];

lon=[states.LabelLon];

tf=ingeoquad（lat,lon,latlim,lonlim）;

textm（lat（tf）,lon（tf）,{states（tf）.Name},...

MaptheConterminousUnitedStateswithadifferentfillcolorforeachstate:

ax=usamap（'

{@（name）~any（strcmp（name,{'

Alaska'

Hawaii'

}））,'

...

%NOTE-colorsarerandom

framemoff;

gridmoff;

mlabeloff;

plabeloff

MapoftheUSAwithseparateaxesforAlaskaandHawaii:

names={states.Name};

indexHawaii=strmatch（'

names）;

indexAlaska=strmatch（'

indexConus=1:

numel（states）;

indexConus（indexHawaii）=[];

indexConus（indexAlaska）=[];

stateColor=[0.510.5];

geoshow（ax

（1）,states（indexConus）,'

stateColor）

geoshow（ax

（2）,states（indexAlaska）,'

geoshow（ax（3）,states（indexHawaii）,'

fork=1:

3

setm（ax（k）,'

Frame'

Grid'

ParallelLabel'

MeridianLabel'

end

usamapwithnoargumentsasksyoutochoosefromamenuofs