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 Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated.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.
> I consulted with Don about this (although he said Jeff did most/all of > the drawing stuff), and he agreed that the only glyph type that could > be rendered as a "map" would be polygons.....so..... > > my proposal is this: > > 1. change the label on the checkbox to read "Load polygon as a map" > 2. change the associated tooltip to indicate that only polygons will > be "map-ized" > 3. change the checkbox to be disabled if there is no polygon defined > (it _looks_ like this should be doable....). > > Let me know if these changes are acceptable, and I will endeavor to > change the IDV code to implement them... > > Yuan -- any problems with this? > > tom Tom, I am ok with it. In the long run, we may want to see how to make other shapes working too. Yuan > > On Tue, Jul 23, 2013 at 2:35 PM, MUG Help Desk <address@hidden> wrote: > > Hello - > > > > We came across a problem where the .xgrf file created from exporting a > > drawing from the Drawing Controls with the 'Load as map data' option > > selected does not display. This appears to be true with many of the > > different shapes you can draw. We have set Tom W. as the resolver of this > > inquiry. > > > > Thanks - > > Bob Carp > > > > ----==== Inquiry ====---- > > 1416 > > > > ----==== Summary ====---- > > Exporting a drawing and loading as a map layer does not work correctly for > > most shapes from the Drawing Control widget. > > > > ----==== Request ====---- > > 2013-07-23 - Bob Carp > > This was rechecked using McV 1.4b1 and IDV 4.0u2 nightlies dated 07/23/13 > > and this is still a problem in both places. Changing the status of this > > inquiry to 'IDV-sent to Unidata' and setting the resolver as Tom W. > > > > 2013-02-20 - Bob Carp > > When you export a drawing from the Drawing Controls, there is an option for > > 'Load as map data'. What this does, is when you save your drawing in the > > *.xgrf format, a layer will also be added to the Field Selector for your > > drawing, which can be loaded in with the Map Display display type. From > > the Layer Controls, you can display this w/o error if you only use the > > 'Create a polygon' shape, but not with fronts or arrows. If you have a > > front saved in y our *.xgrf file, clicking Create Display doesn't appear to > > do anything (no display, and no error message). If you attempt to use the > > 3D map formula to draw the front over topography, you get an NPE. > > > > If you load this saved file in through the General>Files/Directories > > chooser with the 'Drawing files' Data Type, the display creates w/o error > > right away with Add Source regardless of what shapes are drawn in the file. > > > > Steps to reproduce: > > 1. Open the Drawing Control widget through 'Display>Draw Freely' > > 2. Draw a cold front > > 3. Export the drawing via 'File>Export Drawing' in the Drawing Controls > > window > > 4. Save your file, and make sure that you have the 'Load as map data' > > checkbox selected > > 5. When you click Save, you may see flashing in the Data Explorer. Go to > > the Field Selector tab and you should see your *.xgrf file there > > 6. Using the Map Display display type, click Create Display > > - Nothing happens. I would expect the front to be displayed > > > > - If you do this same process, but draw a straight line with the first > > Shape option for Polygon, it works fine. > > > > I have not tried this with all of the available shapes, only fronts, > > arrows, and a polygon. Polygon was the only shape that worked for me of > > these three. > > > > > > ################################################################################ > > > > http://dcdbs.ssec.wisc.edu/inquiry-v/index.php?inquiry=1416 > > > > -- > Tom Whittaker > University of Wisconsin-Madison > Space Science & Engineering Center (SSEC) > Cooperative Institute for Meteorological Satellite Studies (CIMSS) > 1225 W. Dayton Street > Madison, WI 53706 USA > ph: +1 608 262 2759 > > Ticket Details =================== Ticket ID: QCX-786061 Department: Support IDV Priority: Normal Status: Closed