NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
<html><div style='background-color:'><DIV>I 've successfully created 3D terrain by using Visad. Now, I want to draw a road on 3D terrain. The road will be realized by drawing line between vector point.(Here, I'm going to use Gridded3DSet) But the vector point information that I readed from a special file(VMAP) only includes X and Y value, no Z value(elevation value). How can I draw the road up and down along with the 3D terrain.(Not just float on the 3D terrain) If I can get Z values from the 3D terrain according to X,Y values, I may can draw a road as what I thought. But I have no idea about how to retrive Z values from the 3D terrain.</DIV> <DIV>If you can give me any suggestion, I will be very thankful.</DIV> <DIV> </DIV> <DIV>Jing</DIV> <DIV> </DIV></div><br clear=all><hr> <a href="http://g.msn.com/8HMXEN/2015";>get 2 months FREE*</a> </html>
visad archives: