Dave, We had to do a bit of digging around, but we believe all these issues can be handled. I attach a screenshot of the Text Point Metadata GUI. Note a few things: - Here is the Date format I used: yyyy-MM-dd'T'HH:mm:ss.sss'Z' - The depth field is in kilometers (not meters) and you must also specify a scale=-1 in the "Extra" field. - Mag has no unit. You are going to want to save this metadata definition for future use. See the following links on how to achieve this. You will have to look at the bottom of those pages. http://www.unidata.ucar.edu/software/idv/docs/userguide/data/TextPointData.html http://www.unidata.ucar.edu/software/idv/docs/workshop/datadisplays/point/TextPointData.html Once you click "Add Source" in the "Data Choosers" tab of the Dashboard, you will then be taken to the "Field Selector" tab. See the second attached image. You will want to display the "Point Data" field. At this point, you should have a display of the earthquake data with the values correctly plotted in the vertical dimension. Now to incorporate the magnitude will take a bit more work. In the Legend, click on the "Text Point Data" link. This action will take you to the Displays, Layout tab of the Dashboard. You are going to have to change the Layout model to incorporate the magnitude. Read about this topic here: https://www.unidata.ucar.edu/software/idv/docs/userguide/tools/StationModelEditor.html http://www.unidata.ucar.edu/software/idv/docs/workshop/resources/stationmodel/StationModelEditor.html I was able to plot the magnitude with circles that varied by size according to the magnitude. Please keep us up-to-date on your progress. Best Wishes, Unidata IDV Support > Thanks for the quick response. Still having issues. If I add the suggested > URL ( http://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/all_hour.csv) > I get the field formatting dialog, but the pull down only has values for > Time, Lat, Long, Altitude and IDN. If I type "depth" and "magnitude" into > the appropriate header fields I still get a listing when I view the Point > data list of Time, Lat, Long and Altitude. Using the Select Fields button > on the list display I can add a Magnitude field after the fact, but am > still unable to get a depth field added and only a couple of points plot. > > Going to one of the pre-formatted csv files on the second site ( > http://earthquake.usgs.gov/earthquakes/feed/v1.0/csv.php) I downloaded the > one month 2.5 + EQ data. Adding it to IDV using Text Point Data Files and > again, attempting to define the values in the Point Data window, I run > across the same issue with defining fields. Using the Select Fields button > as above I can define the magnitude field. Depth is defined in the Altitude > field if I compare the file listing with Excel but it is in meters and all > positive values. Comparing the file listing and the csv in excel all seems > correct other than the positive depth values. The data does plot on the IDV > display and appears correctly located, but any attempt to change symbology > via Dashboard > Displays > Layout Model pulldown such as EQ depths by color > and size by magnitude, results in all the points symbolized exactly the > same size and all the same color, purple for zero. This suggests theat the > magnitude and depth values are not being accessed. I can understand the > depths plotting at zero when symbology is looking for a negative number. > Do I put a ( *-1 ) function in somewhere? > > I've found theUnidata IDV training workshop material. Is there > manual/teachers guide on using the UNAVCO functions? > > Thanks, > > Dave > > > address@hidden> wrote: > > > Dave, > > > > While waiting for a fix to the issue described below, there may be a > > fairly simple workaround. Note the earthquake data is available in CSV > > http://earthquake.usgs.gov/earthquakes/feed/v1.0/csv.php. > > > > This can easily be read in to the IDV. For example, enter the > > http://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/all_hour.csv URL > > in the IDV data chooser. You will be prompted to specify the format of the > > data. See more details about this process here > > http://www.unidata.ucar.edu/software/idv/docs/userguide/data/TextPointData.html > > . > > > > Moreover, you will note that > > http://earthquake.usgs.gov/earthquakes/feed/v1.0/csv.php has many more > > data feed options so this may be a better solution anyway. > > > > Please keep us up-to-date on your progress. > > > > Best, > > > > Unidata IDV Support > > > > > Dave, > > > > > > Thanks for alerting us to this problem. According to this > > http://earthquake.usgs.gov/earthquakes/catalogs/ the data feeds have > > changed location, but also the format has been altered. Unfortunately, we > > do not have a quick solution and we will have to put it on the todo list. > > > > > > Best, > > > > > > Unidata IDV Support > > > > > > > Full Name: Dave Tewksbury > > > > Email Address: address@hidden > > > > Organization: Hamilton College Geosciences > > > > Package Version: 4.1 build date:2013-08-02 18:38 UTC > > > > Operating System: Windows 7 > > > > Hardware: Java: home: C:\Program Files\IDV_4.1\jre version: 1.6.0_43 > > j3d:1.5.2 fcs (build4) > > > > Description of problem: > > > > > > > > Installed UNAVCO IDV viewer per website instructions with no issues. > > > > > > > > Viewer launches and displays map with area of interest box around > > North America. > > > > > > > > Following instructions on Earthquakes, Epicenters, Hypocenters, > > > > Magnitudes and Earthquake catalogs web page attempting to visualize > > > > current earthquakes using the Displays > Locations > Earth > > > Earthquakes > > > > > and selecting quakes greater than magnitude 2.5 > > > > > > > > Activity bar at lower right of window shows scrolling lines then > > presents > > > > this error message. > > > > > > > > "Creating display: Station Locations > > > > java.lang.NullPointerException" > > > > > > > > Nothing is plotted and nothing is added to the legend window. > > > > > > > > Have relaunched IDV and restarted computer with no luck. > > > > > > > > Working on Windows OS 7 > > > > > > > > any suggestions? > > > > > > > > Thanks, > > > > > > > > Dave > > > > > > > > ****************** > > > > Stack trace: > > > > java.lang.NullPointerException > > > > at > > ucar.unidata.metdata.NamedStationTable.getMap(NamedStationTable.java:1438) > > > > at > > ucar.unidata.metdata.StationTableImpl.values(StationTableImpl.java:161) > > > > at > > ucar.unidata.idv.control.StationLocationControl.getStationList(StationLocationControl.java:1315) > > > > at > > ucar.unidata.idv.control.StationLocationControl.getFilterNames(StationLocationControl.java:953) > > > > at > > ucar.unidata.idv.control.StationModelControl.init(StationModelControl.java:508) > > > > at > > ucar.unidata.idv.control.StationLocationControl.init(StationLocationControl.java:294) > > > > at > > ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl.java:1423) > > > > at > > ucar.unidata.idv.control.DisplayControlImpl.init(DisplayControlImpl.java:1106) > > > > at > > ucar.unidata.idv.ControlDescriptor.initControl(ControlDescriptor.java:986) > > > > at ucar.unidata.idv.ControlDescriptor$1.run(ControlDescriptor.java:911) > > > > at ucar.unidata.util.Misc$3.run(Misc.java:1251) > > > > > > > > > > > > > > > > > > > > > Ticket Details > > =================== > > Ticket ID: QIA-177254 > > Department: Support IDV > > Priority: Normal > > Status: Closed > > > > > > > -- > Dave Tewksbury > GIS & Tech support > Dept of Geosciences > Hamilton College > Clinton, NY 13323 > USA > > Ticket Details =================== Ticket ID: QIA-177254 Department: Support IDV Priority: Normal Status: Closed
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