简介:ManyInternet-GIShavebeenimplementedonthewebandtheyareincreasinglybecominganimportantpartofmultimediacartographythathasmuchmoreusersascomparedtotraditionalGISproductionmedia.InternetGIStechnologyhasprovidedtheGISdynamicinformationacquisitionwithtechnicalsupport.Also,thevisualizationtechnologyofelectronicmaphasprovidedtoolsforGISsymbolswithdynamiccharacteristics.OnthebasisofGISdynamicinformationacquisition,thedesignideaandimplementationmethodsofdynamicsymbolsindynamicGISarepresentedinthisarticle.
简介:日前,爱普生中国有限公司发布了全新的EpsonPerfection4870Photo平板式彩色图像扫描仪。作为一款底片扫描的专业高手,该款产品不仅拥有时尚的外观,弧线型机身的设计搭配光亮照人的塑质外壳,造型尽显高贵、典雅.同时,其扫描精度也高达4800dpi×9600dpi,可实现48位色彩输入/输出,因此获取的图像色彩更加丰富、真实。