This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
Hi Rick- > Institution: SSEC > Package Version: 2.0RC1 > Operating System: os.name:Windows XP; os.arch:x86; os.version:5.1; > Hardware Information: java.vendor:Sun Microsystems Inc.; > java.version:1.4.2_08; java.home:C:\\Program Files\\IDV_1.3B2\\jre; > j3d.version:1.3.2 fcs (build12); j3d.vendor:Sun Microsystems, Inc.; > j3d.renderer:OpenGL; > Inquiry: I have a 2-Byte topograpy McIDAS AREA file which has RAW values that > are equal to elevation. How can I make these viewable in 3D? Since the IDV doesn't know about the specific calibration of an image, you need to use a formula to select the image and set the topography display type. If you have this on an ADDE server, you can use the IDV's Images chooser to point to your dataset and for the Data Type, select the Elev calibration. You probably want to select just the latest image or choose an absolute time. Click the Add Source button to load it into the Field Selector. From the Field Selector, select the Formulas Data Source and from the Fields, select the System->Any Field formula. For the Display, choose the 3D Display->Topography display and then click "Create Display". When the Field Selector pops up, select the image from the list and then OK. That should give you a topographic display of the image. Don Murray Ticket Details =================== Ticket ID: ARQ-382667 Department: Support IDV Priority: Normal Status: Open