<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<p>Hi Alberto, all</p>
<p>I understand the concern, but the logic of SIAP 2.0 (I instit on
.0) is that it is not forcing outputs but only selecting.**<br>
</p>
SO interprtaion 1 ) is correct. If you ask FORMAt=jpeg and
everything is in application/fits you select .... nothing.<br>
<br>
Allowing virtual data in SIAP 2.1 (which I hope tio happen, ASAP)
will change the behavior of FORMAT to force the output to be be
jpeg.<br>
<br>
My 2 cents<br>
Cheers<br>
François<br>
<br>
<div class="moz-cite-prefix">Le 11/03/2019 à 18:56, alberto micol a
écrit :<br>
</div>
<blockquote type="cite"
cite="mid:29070A07-EE2A-4A0C-A890-F91A2C280976@googlemail.com">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<h3 style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif;
font-variant-ligatures: normal; orphans: 2; widows: 2;" class=""><span
style="font-size: 14px; font-weight: normal;" class="">Dear
DAL,</span></h3>
<div class=""><span style="font-size: 14px;" class="">I have a
question regarding the FORMAT input parameter described in
SIAv2.0:</span></div>
<div class="">
<h3 style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif;
font-variant-ligatures: normal; orphans: 2; widows: 2;"
class=""><span class="Apple-tab-span" style="white-space:pre"> </span>2.1.17 FORMAT</h3>
<p style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif; font-size: 14px;
font-variant-ligatures: normal; orphans: 2; widows: 2;"
class=""><span class="Apple-tab-span" style="white-space:pre"> </span>The
FORMAT parameter specifies response format(s) (the
access_format column from the ObsCore [7] data model). This
column describes the format of the response from the
access_url (see <a
href="http://www.ivoa.net/documents/SIA/20151223/REC-SIA-2.0-20151223.html#bkmRefHeading200962138146524"
rel="noreferrer noopener" target="_blank"
title="http://www.ivoa.net/documents/SIA/20151223/REC-SIA-2.0-20151223.html#bkmRefHeading200962138146524"
tabindex="-1" class="" moz-do-not-send="true">3.1.3</a>) so
the values could be data file types (e.g. application/fits) or
they could be the DataLink [8] MIME type. </p>
</div>
<div style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif; font-size: 14px;
font-variant-ligatures: normal; orphans: 2; widows: 2;" class="">It
is unclear to me how to read that.</div>
<div style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif; font-size: 14px;
font-variant-ligatures: normal; orphans: 2; widows: 2;" class="">I
have two possibilities in mind:</div>
<div style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif; font-size: 14px;
font-variant-ligatures: normal; orphans: 2; widows: 2;" class=""><br
class="">
</div>
<div style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif; font-size: 14px;
font-variant-ligatures: normal; orphans: 2; widows: 2;" class="">1)
The FORMAT input param is used to add a constraint onto the
access_format, e.g.:</div>
<p style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif; font-size: 14px;
font-variant-ligatures: normal; orphans: 2; widows: 2;" class="">
...&FORMAT=application/fits</p>
<p style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif; font-size: 14px;
font-variant-ligatures: normal; orphans: 2; widows: 2;" class="">
gets translated into a constraint like: </p>
<p style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif; font-size: 14px;
font-variant-ligatures: normal; orphans: 2; widows: 2;" class="">
SELECT ... WHERE access_format = 'application/fits</p>
<div style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif; font-size: 14px;
font-variant-ligatures: normal; orphans: 2; widows: 2;" class="">but
that does not seem to have much sense, as some data providers
might have decided that access_format in the ObsCore table is
always the datalink mime type, delegating and delaying the
specification of the correct mime type to datalink. </div>
<div style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif; font-size: 14px;
font-variant-ligatures: normal; orphans: 2; widows: 2;" class="">In
such case, the result of the above query will always be an empty
set.</div>
<div style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif; font-size: 14px;
font-variant-ligatures: normal; orphans: 2; widows: 2;" class=""><br
class="">
</div>
<p style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif; font-size: 14px;
font-variant-ligatures: normal; orphans: 2; widows: 2;" class="">2)
a different way of reading 2.1.17 is that FORMAT determines
which access_format will be used in output, that is...</p>
<p style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif; font-size: 14px;
font-variant-ligatures: normal; orphans: 2; widows: 2;" class="">if
...&FORMAT=application/fits</p>
<p style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif; font-size: 14px;
font-variant-ligatures: normal; orphans: 2; widows: 2;" class="">then
the returned votable will contain:</p>
<div class="">access_format=application/fits</div>
<div class="">access_url=the URL to directly download the FITS
file (and not a datalink)</div>
<p style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif; font-size: 14px;
font-variant-ligatures: normal; orphans: 2; widows: 2;" class="">while
if FORMAT=application/x-votable+xml;content=datalink</p>
<div style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif; font-size: 14px;
font-variant-ligatures: normal; orphans: 2; widows: 2;" class="">then
the access_format will
be "application/x-votable+xml;content=datalink”</div>
<div style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif; font-size: 14px;
font-variant-ligatures: normal; orphans: 2; widows: 2;" class="">and
the access_url will return the datalink link.</div>
<div style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif; font-size: 14px;
font-variant-ligatures: normal; orphans: 2; widows: 2;" class=""><br
class="">
</div>
<div style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif; font-size: 14px;
font-variant-ligatures: normal; orphans: 2; widows: 2;" class=""><br
class="">
</div>
<div style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif; font-size: 14px;
font-variant-ligatures: normal; orphans: 2; widows: 2;" class="">Could
you please help me understand the 2.1.17 specification?</div>
<div style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif; font-size: 14px;
font-variant-ligatures: normal; orphans: 2; widows: 2;" class="">
<div style="font-variant-ligatures: normal;" class="">I would go
for interpretation (2) above, but I see that some of you have
implemented (1) instead...</div>
<div class=""><br class="">
</div>
</div>
<div style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif; font-size: 14px;
font-variant-ligatures: normal; orphans: 2; widows: 2;" class="">Many
thanks in advance,</div>
<div style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif; font-size: 14px;
font-variant-ligatures: normal; orphans: 2; widows: 2;" class="">Alberto</div>
<div style="font-family: "Segoe UI", "Helvetica
Neue", "Apple Color Emoji", "Segoe UI
Emoji", Helvetica, Arial, sans-serif; font-size: 14px;
font-variant-ligatures: normal; orphans: 2; widows: 2;" class=""><br
class="">
</div>
</blockquote>
<br>
</body>
</html>