Hi yang li,
Judging from your first screenshot, the 3D extension is already switched on (otherwise the ArcScene and ArcGlobe icons would have been grayed out).
To enable the icons (functionality) on the 3D Analyst toolbar, you need to add data to your table of content. When you add a valid raster you will see this:
[ATTACH=CONFIG]27159[/ATTACH]
Most options are enabled, only the Profile Graph option remains disabled, since it requires a selection of 3D lines.
Kind regards,
Xander
see attached img:
[ATTACH=CONFIG]27157[/ATTACH]
Hi Yang,
I suppose you have experience with ArcGIS 9.x and are used to find the functionality of 3D analyst in the 3D Analyst toolbar.
In 9.x you would see something like this:
[ATTACH=CONFIG]27167[/ATTACH]
All of these tools (and more) can be accessed now through the ArcToolbox:
[ATTACH=CONFIG]27168[/ATTACH]
This screenshot is from 10.2, but you will see something similar at 10.1.
Hope this is what you are looking for...
Kind regards,
Xander