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Volume 12 Issue 2
Jun.  2001
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Wei Zukuan, Kim Jaehong, Bae Haeyoung. Fast Web~Based Data Transmission. Journal of Earth Science, 2001, 12(2).
Citation: Wei Zukuan, Kim Jaehong, Bae Haeyoung. Fast Web~Based Data Transmission. Journal of Earth Science, 2001, 12(2).

Fast Web~Based Data Transmission

  • Received Date: 2018-07-15
  • Rev Recd Date: 2018-07-15
  • Publish Date: 2018-07-15
  • Sinceweb~basedGISprocesseslarge~sizespatialgeographicinformationoninternet,weshouldtrytoimprovetheefficiencyofspatialdataqueryprocessingandtransmission.Thispaperpresentstwoefficientmethodsforthispurpose:division~transmissionandprogressive~transmissionmethods.Indivision~transmissionmethod,amapcanbedividedintoseveralparts,called“tiles”,andonlytilescanbetransmittedattherequestofaclient.Inprogressive~transmissionmethod,amapcanbesplitintoseveralphaseviewsbasedonthesignificanceofvertices,andaserverproducesatargetobjectandthentransmitsitprogressivelywhenthisspatialobjectisrequestedfromaclient.Inordertoachievethesemethods,thealgorithms,“tiledivision”,“priority~orderestimation”andthestrategiesfordatatransmissionareproposedinthispaper,respectively.Comparedwithsuchtraditionalmethodsas“maptotaltransmission”and“layertransmission”,theweb~basedGISdatatransmission,proposedinthispaper,isadvantageousintheincreaseofthedatatransmissionefficiencybyagreatmargin.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Fast Web~Based Data Transmission

Abstract: Sinceweb~basedGISprocesseslarge~sizespatialgeographicinformationoninternet,weshouldtrytoimprovetheefficiencyofspatialdataqueryprocessingandtransmission.Thispaperpresentstwoefficientmethodsforthispurpose:division~transmissionandprogressive~transmissionmethods.Indivision~transmissionmethod,amapcanbedividedintoseveralparts,called“tiles”,andonlytilescanbetransmittedattherequestofaclient.Inprogressive~transmissionmethod,amapcanbesplitintoseveralphaseviewsbasedonthesignificanceofvertices,andaserverproducesatargetobjectandthentransmitsitprogressivelywhenthisspatialobjectisrequestedfromaclient.Inordertoachievethesemethods,thealgorithms,“tiledivision”,“priority~orderestimation”andthestrategiesfordatatransmissionareproposedinthispaper,respectively.Comparedwithsuchtraditionalmethodsas“maptotaltransmission”and“layertransmission”,theweb~basedGISdatatransmission,proposedinthispaper,isadvantageousintheincreaseofthedatatransmissionefficiencybyagreatmargin.

Wei Zukuan, Kim Jaehong, Bae Haeyoung. Fast Web~Based Data Transmission. Journal of Earth Science, 2001, 12(2).
Citation: Wei Zukuan, Kim Jaehong, Bae Haeyoung. Fast Web~Based Data Transmission. Journal of Earth Science, 2001, 12(2).

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