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1.
《地图》1994,(1)
英语之角(7)ScaleandGeneralizationScaleistheratioofdistanceonthemaptothecorrespondingdistanceontheground.Itcanbeshoxvnonamap:1)ast...  相似文献   

2.
《地图》1994,(2)
英语之角(8)ScaleandGeneralization(2)Linesonamapmustoftenbesmoothedforthesakeofclarity.Wheretheterrainisrugged,highwaysdepictedona...  相似文献   

3.
王春 《测绘标准化》1999,15(2):26-27
采用Microsoft Visual Basic5.0for Windows95为工具对MapInfoprofessional4.0作二次开发,实现基于接合表图的数字线划地形图的查找、浏览、查询及实时编辑工作。  相似文献   

4.
在Mapinfo系统中嵌套Access7.0的方法   总被引:3,自引:0,他引:3  
本文从应用开发的角度阐述了Access7.0在基于Mapinfo二次开发系统中的应用方法与技术,结合土地管理信息系统的开发实践,讨论了如何将Access中可视化的面向对象方法和工具引入基于Mapinfo应用系统开发的过程。  相似文献   

5.
网上看澳门     
《地图》1999,(2)
1994年起澳门开设了Inter-net网络服务。为了方便广大网友详细了解澳门的过去、现状,特向大家提供几个重要网址:1)(htp://www.umac.mo/basiclaw/schinese/main.html):如果你想了解基本法的详细内容,可...  相似文献   

6.
1Currentchangedetectiontech niquesAutomaticchangedetectioninimagesofagivensceneacquiredatdifferenttimesisoneofthemostinterestingtopicsofimageprocessing .Itfindsim portantapplicationswithindifferentcontexts,rang ingfromvisualsurveillanceandvideocodingtot…  相似文献   

7.
1 IntroductionThecornercubeprismorretroreflectorisexten sivelyusedinplaceofthemovablemirrorinanin terferometer,orasacooperativetargetinrangefinder.Ithasthreesurfaces,whichareperpendic ulartoeachotherandcalledtherightangularsur faces.Aninclinedisoscelestr…  相似文献   

8.
1 IntroductionInthetraditionalmapandGIS ,accordingtothedifferentgeometricandelementalattributecharac teristicsofspatialobjects,theycanbedescribedaspointsymbol,linearsymbolandsurfacesymbol.Afeatureclassisgivenwithaspecificsymbol.Be causethosesymbolsdonote…  相似文献   

9.
Inordertoelectronizetheprocessofediting ,publishingandissuingscientificandtechnologicalperiodi calsaswellastoadvancethenetworkingprocessofscientificandtechnologicalinformationinterchange,wehavenowjoined“WanfangData———DigitizedPeriodicalGroup” .Therefore…  相似文献   

10.
Automaticmapnameplacementisanimportanttaskamongautomationofcartography,anditisal soachallengeincartographyandGISfield .Mapisadescriptivetoolthatusesasmallspacetorep resentalargespacesocontentsofmapoftencompeteforthemapspace .Ondensemap ,fea turesareclosel…  相似文献   

11.
1 IntroductionAncientbuildings ,astheessenceofancientChi neseculture ,characterizedbyitscomplexandan tiqueshape ,delicatestructure ,compactcombinationand gracefulsculpture ,areappreciated globally .Someancientbuildingsmadeofwoodendurelongbecauseofitssolidstr…  相似文献   

12.
1 IntroductionByvirtueofthecontrolpointsand/orrelativecontrolwork ,themainobjectiveofcontrolsurvey ingincloserangephotogrammetryistobringthecloserangephotogrammetricnetunderthespeci fiedobjectspacecoordinatesystem .Besidesthese lectionofobjectspacecoordi…  相似文献   

13.
Withtherapiddevelopmentofglobalinformationhighway,multimediacommunicationtechnologyplaysamoreandmoreimportantroleinnationaleconomicandsocialdevelopment.However,themultimediacommunicationsystemisacomplicatedrealtimedistributedsystemanditssoftwareisdiff…  相似文献   

14.
Determination of Geopotential of Local Vertical Datum Surface   总被引:1,自引:0,他引:1  
1 IntroductionEachcountryoreachgroupofcountriesselectsmeansealev elatadefinedtidegaugeoratagroupofgaugesforitsverti caldatumsurface .Itisrealized ,however,thatthelocalmeansealevelisusuallydepartedfromthegeoid ,whichshouldbetheidealdatumsurfaceforheight,ow…  相似文献   

15.
1 IntroductionTheincreaseinresearchintheChileanAntarcticTerritoryhasbecomemanifestoverthelasttenyearsinthesubstantialincreaseinthenumberofscientificstationsestablishedandmaintainedonReyJorgeIsland ,makingitneccesarytoregulatetheuseofthoseareasofintere…  相似文献   

16.
1 IntroductionTheartofancientChinesearchitectureistheessenceoftheChineseculturalheritages .Ithasim portantsignificanceforstudyingandlearningChi nesecultureandcivilization .Itisofgreatdifficul ty ,however,tolearnthecomplicatedstructureofancientChinesearchi…  相似文献   

17.
1 IntroductionTherepresentationofspatialobjectsisoneofthekeyissuesincurrentresearchonthespatialdatabasetheoryofGIS (BurroughandMcDonnell,1 998) .Spatialobjectsinnatureareclassifiedastwokinds:objectswithdistinctiveboundariesandob jectswithtransitionalorfuzzy…  相似文献   

18.
Inordertoelectronizetheprocessofediting ,publishingandissuingscientificandtechnologicalperiodi calsaswellastoadvancethenetworkingprocessofscientificandtechnologicalinformationinterchange ,wehavenowjoined“WanfangData———DigitizedPeriodicalGroup” .Therefor…  相似文献   

19.
1 TwokindsofmanagingviewsTherearetwoconspicuousviewsinthetheoryofmodernmanagementscience ,whicharealsoextremelyopposite .Thesetwokindsoftheoriesarethetheoryofobjectivemanagementthatseekstherealizationoftheobjectiveinmanagementandthetheoryofprocessmanag…  相似文献   

20.
1 IntroductionThecombinedGPS/GLONASSoffersmanyad vantagescomparedwithGPS_onlyuseforposition ingapplicationsespeciallyinareaswherethenum berofvisiblesatellitesislimited .TheinclusionoftheGLONASSsignalscanincreasetheaccuracyofpositioningaswellastheavailab…  相似文献   

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