问：是否可以通过脚本函数向eps工作空间加载或者卸载tiff影像？
答：支持基于脚本进行tiff影像的加载。
（1）加载tiff影像：
strbmpfile = "o:10-dem2917.75-363.50.tif"
ssprocess.mapcallbackfunction "sdlcommand","$sdl,ssimageadapter,insertlargeimage(" & strbmpfile & ")",0
（2）卸载tiff影像：
' 关闭指定tif
strbmpfile = "o:1-存量实体转换样例-广州11-domdom_test_0003.tif"
maphandle = ssproject.getactivemap
datasourcehandle = ssproject.getdatasourcebyname(maphandle, strbmpfile)
ssproject.closedatasource maphandle, datasourcehandle
'批量关闭tif
set fso = createobject("scripting.filesystemobject")
maphandle = ssproject.getactivemap
datasourcecount = ssproject.getmapdatasourcecount(maphandle)
for i = datasourcecount-1 to 0 step -1
datasourcehandle = ssproject.getdatasource(maphandle, i)
'获取数据源文件名
strdatafile = ssproject.getdatasourceinfo(datasourcehandle, "name")
if ucase(fso.getextensionname(strdatafile)) = "tif" then
ssproject.closedatasource maphandle, datasourcehandle
end if
ssproject.setactivemap maphandle
next
set fso = nothing