Editing Vector Graphics in the Virtual Simulation Environment-中国期刊网

摘要 Wepresentamethodtorepresentmulti-resolutionvectorgraphicssuchasroadnetworksorrailwaynetworksinvirtualenvironment.Thesevectordatacanbeinteractivelyeditedandthelandscapeandbeexploredinrealtimeatanyaltitudefromflightviewtocarview.Wedesignacontext-focusedvectordescriptionoflinearcanarealfeatures,withassociatedcustomizeddefinitionpaintertospecifytheirappearance(colorandmaterial)andtheirdisplaymode(detailedmodeorsimplifiedmode).Therearesomespecialproblemsindrawingvectorgraphicsinvirtualenvironment.Floating-pointround-offerrorappearwhenweusealowviewpointtoobservethescene,anditleadstoscenejittering.Drawing3Dwidelinesturnsintoaproblemon3Dterrain.Wedesignaview-basedself-adaptiveinterpolationalgorithmandanoffsetlinegeneratingalgorithmtosolveit.Ourresultsshowhighperformancewithgoodvisualquality.

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Editing Vector Graphics in the Virtual Simulation Environment

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Editing Vector Graphics in the Virtual Simulation Environment

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