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 Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated.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.
> When I load up the GFS extended global grids from the motherlode catalog > and then load point data into the system. When this occurs the GFS image > seems to be shifted to the right by about half of the screen. and > changing the projection creates numerous lines making the data unusable. > I was wondering if there was a setting or a fix that I could use to > project both global model and point data at the same time. > Hi, This is because fast rendering is turned on for the display. This basically turns off the check for longitude seam crossing in the display. You can either turn off fast rendering for the particular display (Edit->Properties menu for the Display Control - look for the "Fast Rendering" checkbox). You can also turn off Fast Rendering as a preference (Main Edit->Preferences menu). You can also set the Projection to the GFS projection - Go to the View menu for the Grid display and look for "Use Grid Projection". -Jeff Ticket Details =================== Ticket ID: FBM-183442 Department: Support IDV Priority: Normal Status: Closed