全球卫星遥感影像数据组织与WEB发布

整理文档很辛苦,赏杯茶钱您下走!

免费阅读已结束,点击下载阅读编辑剩下 ...

阅读已结束,您可以下载文档离线阅读编辑

资源描述

ComputerEngineeringandApplications2009,45(21)863theNationalHigh-TechResearchandDevelopmentPlanofChinaunderGrantNo.2009AA01Z335。1974-1976-1962-1974-。2009-04-202009-05-141GIS[1]“”NationalSpatialDataInfrastructureNSDI。、、、、。500~1000GB[2]。OGCOpenGeospatialConsortium[3]SQLServerIISInternetInforma-tionServerInternetMicrosoftTerraServer[4]。、、。。Web。。2WEBJIANGJieYINGLongWULing-daYANGBing410073SchoolofInformationSystemandManagementNationalUniversityofDefenseTechnologyChangsha410073ChinaE-mailjiejiang@nudt.edu.cnJIANGJieYINGLongWULing-daetal.OrganizationandWebbasedpublicationofglobalsatelliteimagedata.ComputerEngineeringandApplications2009452116-20.AbstractWiththerapidgrowthoftheimagedataapplicationsdemandeffectivemanagementandpublicationofincreasinglylargesatelliteremotesensingimagedatahasbecomeanurgentproblem.BasedonthefeaturesofMassiveimagedataandtheWebthispaperdoesadeepresearchandathoroughdiscussionofmulti-resolutionpyramidmodelofglobalsatelliteremotesensingimageandtheindexingdesignandschedulingmechanismofmassimagedata.Thenitbringsforwardamanagementandpublicationengineofglobalsatelliteremotesensingimagedata.Finallyaninstanceofwebbasedhigh-performancegeneral-pur-posepublicationsystembasedontheabovemethodsandmeansisgivenwhichcanmeettheneedsofdifferentaccessinterfaceclientsatthesametime.KeywordssatelliteremotesensingimageWebbasedpublicationInternetServerApplicationProgrammingInterfaceISAPIIS-APIrewrite。Web、Web。WebInternetISAPIISAPIDOI10.3778/j.issn.1002-8331.2009.21.0041002-8331200921-0016-05ATP391162009,45(21)LEVEL=2RES2LEVEL=5RES5LEVEL=4RES4LEVEL=3RES3001006011016021022023002003004005010015020025024007012017008013018009014019XYstep_x2。。CPU。。iRESiiΛ。ΛRESii。。RESii=0。。im×ni、rcr_c.*。。imr_*.*r。i=0i=Λ-1。3。、[5]。3.1、、。1。。21。2。。2[2]。ΛiRESi。24RES4step_xstep_y。001~025。。3。。。。ii、levelrowcol-umn。ΛRESi3020×10X012…19Y1i-1ii+1WEB17ComputerEngineeringandApplications2009,45(21)98…21001…1011…1819YX30crNWOSE0000YOabX6012…9。Λ=15。0i4[20×i+1]×[10×i+1]i∈{012…14}X012…n-2n-1Y012…m-2m-1。L=i&X=c&Y=r。i。i+15[20×i+1]×[10×i+1]i×4X012…n′-2n′-1Y012…m′-2m′-1。i、、、45。m′=2×mn′=2×nr′=2×rc′=2×cr′+1=2×r+1c′+1=2×c+1CPU。22x=x1x/2=x1CPU。3.2、Mercator、。、、。RESiistep_xstep_y。Merca-tori。LL84ab6。aabb。abMercatorcrRESi。LL84abMerca-torpxpy。px=a360×Mpy=M2π×ln[tanπb180+π22222222222222222]1M×M。pxpypx′py′。px′=px+M2py′=py+M2222222222222RESistep_xstep_ypx′py′cr。c=骔px′step_x」r=骔py′step_y22222222222」3cri。01YX021···························n-2n-3n-1m-1m-2m-3criL=i&X=c&Y=rYm-1m-2m-3r21001cn-3n-2n-1X4i……………………·01YX021·····················rn-2n-3n-1m-1m-2m-3cc+1r+1······Ym′-1m′-2m′-3r′+1r′21001c′c′+1n′-3n′-2n′-1Xi+1L=i+1&X=c′+1&Y=r′+1L=i+1&X=c′&Y=r′+1L=i+1&X=c′+1&Y=r′L=i+1&X=c′&Y=r′NWNESWSE5i+1……………………182009,45(21)ii+17BrowserIIS/ApacheApplicationWeb①②③87。4WebGIS///3。[6]。WebGISCGIActiveXISAPIWebGIS。C/S。、、、、。8。1Web。2、、。、。3。4.1ISAPIWEBISAPIInternetServerApplicationProgramInterfaceInternetAPI。ISAPICGI。ISAPIDynamicLinkLibDLLCGI。ISAPIDLLDLLISAPIDLL。ISAPIWin32DLLHTML。ISAPICC++。ISAPIIISISAPI。DLL。ISAPIIIS。ISAPIT、Lxy。。。JPEG1AddHeader。//staticconstTCHARszContentType[]=_T“Content-Typeimage/jpeg\r\n”……AddHeaderpCtxtszContentType2ISAsMFCCHttpServer。CHtmlStreamHTML。CHtmlStreamJPEGCHtmlStream。//CBinaryHtmlStreamclassCBinaryHtmlStreampublicCHtmlStream{publicCBinaryHtmlStream&operatorBYTEb{Write&b1return*this}}3ISACHttpServerISAWEB19ComputerEngineeringandApplications2009,45(21)ba9ISAPIWebCHttpServerCHttpServerContextCHttpServerCon-textISAHTML。CHttpServerContext。//AddHeaderpCtxtLPCTSTRstrLength……CBinaryHtmlStream*pStream=newCBinaryHtmlStreamBYTE*pab=newBYTE[NN+1]ccount=dd.ReadpabNN//intnCountfornCount=0nCountNNnCount++*pStream*pab+nCount*pCtxt*pStreamISAPI。9a。4.2ISAPI。ISAPIhttp//WebServer/GloImg/GloWeb.dll?Fpic&T=&l=&x=&y=http//WebServer/?T=&l=&x=&y=。CGI/。ISAPI_RewriteURL。ISAPI_Rewrite。。“ISAPI”ISAPI_RewriteRegularExpressionsTestUtility。ISAPI_Rewritehttpd.ini。RewriteRule[ISAPI_Rewrite]RewriteRule^.*\?T=.*&l=[0-9]+&x=[0-9]+&y=[0-9]+$$1GloImg/GloWeb.dll?Fpic&T=$2&l=$3&x=$4&y=$5http//WebServer/?T=GloIm-age&l=1&x=30&y=13http//WebServer/GloImg/GloWeb.dll?Fpic&T=GloImage&l=1&x=30&y=13。9b。。URL。5100MDellIntelPentiumIV3.0GHzCPU、2G。Windows2003Server。300、20LandSat0.6QuickBird14GB。PentiumIV2.0Windows。GeoGlobe。844。81s1.5s。61Web/Internet2ISAPICGI3、4ISAPI。。、、。3620ComputerEngineeringandApplications2009,45(21)[1].MapServer[J].2007153-58.[2].GeoImageDBMVR[D].2001.[3]OGC.TheOGCTechnicalCommitteeTechnologyDevelopmentPro-cess[EB/OL].2003-02.OpenGISConsortium.http//[4].[J].2005221-24.[5].[J].2003283288-293.[6].Web[J].2004122-25.[7]SuYFSlottowJMozesA.DistributingproprietarygeographicdataontheWorldWideWeb—UCLAGISdatabaseandmapserver[J].Computer&Geoscience200026741-749.20/m21533768158

1 / 6
下载文档,编辑使用

©2015-2020 m.777doc.com 三七文档.

备案号:鲁ICP备2024069028号-1 客服联系 QQ:2149211541

×
保存成功