joffily at isc.cnrs.fr
Fri Jun 15 10:53:10 CDT 2007
Thank you very much. Sorry for the large attachment. I just realized the
message size, after sending it.
My operating system is Linux.
John Harwell wrote:
> Hi Mateus,
> The copy of the file you included does not have valid latitude
> longitude values. Latitude should range from -90 to +90 and
> Longitude should range -180 to +180.
> The problem is that Caret is not reading binary format latitude
> longitude files correctly and I have just fixed this problem. In
> addition, I have modified the Surface Region of Interest Dialog to
> allow node selection based upon a range of Lat/Long values. Let me
> know which operating system you are using and I will make an updated
> version of Caret available for you to download.
> Lastly, it is probably not a good idea to include caret data files in
> emails as they can make the messages very large. If needed, we do
> have a website where files can be uploaded.
> John Harwell
> john at brainvis.wustl.edu
> Department of Anatomy and Neurobiology
> Washington University School of Medicine
> 660 S. Euclid Ave. Box 8108
> St. Louis, MO 63110 USA
> On Jun 14, 2007, at 3:45 AM, Mateus Joffily wrote:
>> Thank you for the detailed explanation.
>> I followed it, but I am not confident that I got the correct result.
>> To be sure that there was not a problem with my lat/lon file, I
>> decided to test it with CARET_TUTORIAL_SEPT06/PAL_B12.BOTH-
>> HEMS.STANDARD-SCENES.73730.spec. I am attaching the images that I
>> captured from the created metric columns LAT and LONG. The LONG
>> column has only zeros and the LAT column has some strange values.
>> Instead, I would expect a grading of values along the latitude-
>> longitude isocontours. Is it correct? I am also attaching a copy of
>> the latlon file (PALS_B12.LR.73730.latlon) converted to metric.
>> John Harwell wrote:
>>> We will add ROI node selection with latitude/longitude to our "to-
>>> do" list.
>>> First, convert the LatLon file to a Metric file:
>>> * Write your latitude/longitude file and be sure that "Data File
>>> Encoding" at the bottom of the Save Data File Dialog is set to
>>> "Ascii (Text)".
>>> * Load the lat/lon file into a text editor.
>>> * Change "tag-version 1" to "tag-version 2"
>>> * Change "tag-number-of-columns 1" to "tag-number-of-columns 4"
>>> * Save the lat/lon file
>>> * Change then name of the lat-lon file so that it ends with ".metric".
>>> * Select File Menu->Open Data File. Set the type to Metric,
>>> choose the file, and press the Open button. A Dialog will appear
>>> listing the columns for loading. Set the names of the first two
>>> columns to "Long" and "Lat" respectively.
>>> Second, to select the ROI
>>> * Use the Display Control to set the displayed metric to "Lat".
>>> * On the Surface ROI Dialog, set the selection method to "Nodes
>>> with Metric".
>>> * Set the Thresholds to the range of latitudes you want to select.
>>> * Press the Select Nodes button.
>>> * On the Display Control Dialog, change the selected metric to "Long".
>>> * On the Surface ROI Dialog, change "Normal Selection" to "And
>>> Selection (Intersection)".
>>> * Set the thresholds to the range of longitudes you want to select.
>>> * Press the Select Nodes button.
>>> John Harwell
>>> john at brainvis.wustl.edu
>>> Department of Anatomy and Neurobiology
>>> Washington University School of Medicine
>>> 660 S. Euclid Ave. Box 8108
>>> St. Louis, MO 63110 USA
>>> On Jun 13, 2007, at 11:13 AM, Mateus Joffily wrote:
>>>> I would like to select every node that is inside a certain range
>>>> of latitude/longitude coordinates.
>>>> I thought to create a metric column with the nodes' longitude and
>>>> latitude values and then use the 'Node with Metric' operation
>>>> from 'Surface Region of Interest' dialog to select the nodes. But
>>>> I am not sure it is the easiest way of doing it... Does anyone
>>>> has any suggestion?
>>>> Thank you very much.
>>>> caret-users mailing list
>>>> caret-users at brainvis.wustl.edu
>>> caret-users mailing list
>>> caret-users at brainvis.wustl.edu
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