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Saturday, March 10

  1. user_add dad5643 dad5643 joined LTVT
    10:07 am

Tuesday, February 6

  1. user_add Helium5793 Helium5793 joined LTVT
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Monday, November 6

  1. page User Photo Calibration Window edited ... 1. The first step is to locate the image to be calibrated using the Open dialog. 2. The Zoom …
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    1. The first step is to locate the image to be calibrated using the Open dialog.
    2. The Zoom controls allow one to increase or decrease the size of the image. Decreasing the size is sometimes necessary to see the whole photo at once, although the size of the display window can also be increased by dragging the lower left corner.
    ...
    understands to memean that the
    4. Step 2: As explained above, it is necessary to identify the pixel locations of two points of known selenographic longitude and latitude. For precise calibrations, points from the 1994 Unified Lunar Control Network are normally used by changing the File Associations in the Main Screen. These points can be overlain on a similar image in that window and when a control point that can be recognized in the photo to be calibrated has been found, the mouse right click menu can be use to copy the nearest dot to the reference point. This data is, in turn, copied into the present form using the Copy from Main Screen Button. Having done this, the corresponding point in the image to be calibrated is indicated by clicking the mouse on it. A red plus mark will be drawn at that point, and its pixel location will be copied into the data entry boxes. One has thus assigned lunar coordinates to a definite pixel position. The correspondence can also be entered manually if someone has supplied the information in advance. In the example, the point at 4' has been clicked on. This is the point called "M1101" in the 1994 ULCN.
    5. Step 3: The preceding procedure is repeated for a second point, which is represented by a blue plus mark. All subsequent measurements in LTVT will be based on the expected distance and bearing between these two points. For this reason, the two points used should be as widely spaced as possible -- ideally in opposite corners of the photo. This gives the most accurate estimate of scale and orientation. In the example, the point at 5' has been clicked on. This is "Kane G" in the 1994 ULCN.
    (view changes)
    1:24 pm

Monday, September 25

  1. 6:18 am

Saturday, May 6

  1. user_add sverba sverba joined LTVT
    8:44 am

Thursday, December 29

  1. user_add 626john 626john joined LTVT
    11:17 am

Sunday, May 22

  1. page News Archive edited ... WikiUpdates Wiki Updates February 3, 2016 The Image Grabber utility program has been upgra…
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    WikiUpdates
    Wiki Updates
    February 3, 2016
    The Image Grabber utility program has been upgraded to Version 1.8.2. This minor revision permits retrieving files from internet sites in which there is an embedded comma in the URL (for further details, see "Image Grabber Directions.txt" in the program download package).

    December 18, 2012
    The basic dot files for Mercury, Venus and Mars have been updated to incorporate changes to the IAU nomenclature and control networks through December 15, 2012. The basic and specialized lunar dot files have also been updated to reflect minor changes to the "origin" field for a few features.
    (view changes)
    6:11 pm
  2. page News edited ... more: see the News Archive Wiki Updates May 22, 2016 Links has been added to the end of th…
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    more: see the News Archive
    Wiki Updates
    May 22, 2016
    Links has been added to the end of the Additional Textures page to several LTVT-compatible global lunar texture files assembled by Jean-Charles Bouget from various Lunar Reconnaissance Orbiter Camera - Wide Angle Camera data sets.

    December 18, 2012
    The basic dot files for Mercury, Venus and Mars have been updated to incorporate changes to the IAU nomenclature and control networks through December 15, 2012. The basic and specialized lunar dot files have also been updated to reflect minor changes to the "origin" field for a few features.
    June 16, 2012
    A new version of the basic lunar dot file for the IAU-named features on the Moon is available on the LTVT download page. It incorporates the new LOLA-based lunar positions and diameters announced by the IAU on June 4, 2010, as well as new minor crater names (one introduced on March 29, 2012 and twelve on June 15, 2012). The specialized lunar dot files have also been updated as well as those for Mercury and Mars.
    February 3, 2012
    The Image Grabber utility program has been upgraded to Version 1.8.2. This minor revision permits retrieving files from internet sites in which there is an embedded comma in the URL (for further details, see "Image Grabber Directions.txt" in the program download package).

    more: see the News Archive
    This page has been edited 187 times. The last modification was made by JimMosher on May 22, 2016 6:10 pm
    (view changes)
    6:10 pm
  3. page Additional Textures edited ... Here is the 16 points per degree LDEM_16.IMG from 16 Mar 2010 of LOLA data transformed to a JP…
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    Here is the 16 points per degree LDEM_16.IMG from 16 Mar 2010 of LOLA data transformed to a JPEG grayscale image, which can be used as an LTVT texture. The intensities of "0" and "256" corresponding to the extremes of the altitude range given in the DEM info. The map has been adjusted so that it spans the LTVT default range -180° to +180° in longitude and +90° to -90° in latitude (the original spans 0° to 360° in longitude, which, in LTVT, can be used only as "Texture 3"):
    {http://ltvt.wikispaces.com/file/thumbnail/LOLA_LDEM_16.jpg?size=64} (click thumbnail to see full-sized image)
    ...
    -180° to +180°+180°.
    LROC_textures
    LROC Global Textures
    French amateur Jean-Charles Bouget has assembled LTVT-compatible global lunar texture files from several Lunar Reconnaissance Orbiter Camera datasets. Although they are too large to upload to the LTVT Wiki, Jean-Charles has kindly made them available on his Dropbox site.
    WAC Global Morphologic Map: LTVT texture file (63.28 MB)
    LROC source files: http://wms.lroc.asu.edu/lroc/view_rdr/WAC_GLOBAL
    WAC Nearside-Farside No-Slew Mosaic: LTVT texture file (63.28 MB)
    LROC source files:
    http://wms.lroc.asu.edu/lroc/view_rdr/WAC_ROI_NEARSIDE_DAWN
    http://wms.lroc.asu.edu/lroc/view_rdr/WAC_ROI_FARSIDE_DUSK
    WAC Color Shaded Relief:
    LTVT texture file (54.13 MB; .JPG format)
    LTVT texture file (189.84 MB; .BMP format -- larger, but loads faster into LTVT)
    LROC source files: http://wms.lroc.asu.edu/lroc/view_rdr/WAC_CSHADE

    This page has been edited 10 times. The last modification was made by JimMosher on May 22, 2016 6:00 pm
    (view changes)
    6:00 pm

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