地圖注記自動(dòng)配置研究及其在AutoCAD地圖制圖中的應(yīng)用.pdf

1、成都理工大學(xué)碩士學(xué)位論文地圖注記自動(dòng)配置研究及其在AutoCAD地圖制圖中的應(yīng)用姓名：耿留勇申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：地圖制圖學(xué)與地理信息工程指導(dǎo)教師：余代俊20070501成都理I：人學(xué)碩十學(xué)何論文ResearchofMapAutomaticLabelinganditsApplicationinMappingbyAutoCADABSTRACTInrecentyears，withthefastdevelopmentofeconomycon

2、structiontherateofmapsupdatingbecomesfasterandfasterOtherwise，theinformationtechnologydevelopment，representedbycomputerandnetworkmakestheworldtoquickentheprocessofgeomaticstechnologyinformatizationThedesignandproductiona

3、utomatizationofmapshavebecomeataskneededimminentlyresolvedwhichiSfacedbythepersonswhoseworkisgeomaticsIntheprocessofmapdesignandproductionautomatization，maplabelingisthebottle—neckrestrictingitsdevelopmentIfmaplabelingau

4、tomatizationCancometrue，theefficiencyofcartographywillbeenhancedgreatly，thetime，consumedbyproducingmaps，willbeshortenedgreatly，anditCanbelargelysatisfiedthateverywalkoflifegivesdemandstothespeedofmapproductionFirst，inthe

5、foundationofrealizingthedevelopmentofpresentsituationofmapautomaticlabelingaroundworld，thepaperhasconcludedtherulesofmaplabelingThen，allmethodsandmaterialalgorithms，usedforlabelingallkindsofmapelements，arediscussedindeta

6、ilinthepaperThecalculationofcandidateplacementsofpointelementautomaticlabelingmustbeexecutedbycorrespondingmethods，accordingtotheshapeofpointelements，SOwecangetcandidateplacementswhichhavestrongrelationshipbelongingtopoi

7、ntelementsInadditionthepaperalsoin仃oducestwOalgorithmsusedforoptimminglabelingplacement，theyaregreedsearchandsearchbasedontrace，andcanbeusedforoptimizinglabelingplacementsoflineelementandareaelementThecalculatingofcandid

8、ateplacementoflineandareaelementsismorecomplexthanpointelementtherearesuitablealgorithmsfordifferentlineandareaelementsThekeypointsofthepaperareputtingforwardalgorithmamelioratedforlabelingduallineelement，anewmethod，cent