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Thanks for checking Vince, concur. Dick will probably want — mdash for complying with ISO editorial rules. </div>
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<div>v/r Don</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> vmarchetti@kshell.com <vmarchetti@kshell.com><br>
<b>Sent:</b> Wednesday, September 8, 2021 3:42:02 AM<br>
<b>To:</b> Brutzman, Donald (Don) (CIV) <brutzman@nps.edu>; X3D-Public <x3d-public@web3d.org><br>
<b>Subject:</b> Re: [x3d-public] illegal characters in X3D Architecture Table 41.5</font>
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<span style="color:Yellow">NPS WARNING:</span> *external sender* verify before acting.</div>
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<div>I examined file X3D/ISO-IEC19775/ISO-IEC19775-1/ISO-IEC19775-1v4.0/ISO-IEC19775-1v4-CD1/Part01/components/volume.html from github.
<div class="">The xml header line declares the encoding of utf-8, as does the html meta tag, charset field</div>
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<div class="">Line 904 is the first data row of table 41.5</div>
<div class=""><td>S ???? luminance (L)</td></div>
<div class="">where ???? denotes the garbled bytes.</div>
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<div class="">Examining a hex dump, the 4 bytes between the space following 'S' and the space preceding 'l' are:</div>
<div class="">0xEF 0xBF 0xBD 0x3F</div>
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<div class="">0xEF is a byte used in byte-order-marks in different encodings, but it is incorrect to have it in the middle of a file.</div>
<div class="">I have tried without success to decode these 4 bytes and portions of this byte-list in utf-8 and utf-16 ; the only success is that</div>
<div class="">the final byte, 3F, is the question mark in ascii.</div>
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<div class="">I propose the way forward is to decide what character we want to put in these table rows , and a dash would be fine, and make the edit.</div>
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<div class="">Vince Marchetti<br class="">
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<div class="">On Sep 7, 2021, at 10:07 PM, Brutzman, Donald (Don) (CIV) <<a href="mailto:brutzman@nps.edu" class="">brutzman@nps.edu</a>> wrote:</div>
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For Mantis<span class="x_Apple-converted-space"> </span><span class="" style="font-size:10pt; font-family:Verdana,sans-serif; background-color:rgb(243,243,243)">899</span>, hoping someone can discern correct values for garbled characters in</div>
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<a href="https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-CD1/Part01/components/volume.html#t-transferFunctionTextureCoordinateMapping" class="" style="color:blue; text-decoration:underline">https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-CD1/Part01/components/volume.html#t-transferFunctionTextureCoordinateMapping</a></li><li class="x_MsoListParagraph" style="margin:0in; font-size:11pt; font-family:Calibri,sans-serif">
Table 41.5 — Transfer function mapping from texture type to texture coordinate</li></ul>
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Am thinking they might be quite simple, mdash or hyphen perhaps…</div>
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all the best, Don<br class="">
<span class="" style="font-family:"Courier New"">--<span class="x_Apple-converted-space"> </span><br class="">
Don Brutzman Naval Postgraduate School, Code USW/Br <span class="x_Apple-converted-space"> </span><a href="mailto:brutzman@nps.edu" class="" style="color:blue; text-decoration:underline">brutzman@nps.edu</a><br class="">
Watkins 270, MOVES Institute, Monterey CA 93943-5000 USA +1.831.656.2149<br class="">
X3D graphics, virtual worlds, navy robotics<span class="x_Apple-converted-space"> </span><a href="http://faculty.nps.edu/brutzman" class="" style="color:blue; text-decoration:underline">http://faculty.nps.edu/brutzman</a></span></div>
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