https://patrius.cnes.fr/index.php?action=history&feed=atom&title=Tutorials_4.5.1_Attitude 2026-04-10T21:49:41Z Historique des versions pour cette page sur le wiki MediaWiki 1.43.8 https://patrius.cnes.fr/index.php?title=Tutorials_4.5.1_Attitude&diff=2659&oldid=prev 2020-08-17T08:34:57Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="fr"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Version précédente</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Version du 17 août 2020 à 08:34</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Ligne 1 :</td> <td colspan="2" class="diff-lineno">Ligne 1 :</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Attitude ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Attitude ==</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>We must not confuse an [{{JavaDoc4.<del style="font-weight: bold; text-decoration: none;">4</del>}}/fr/cnes/sirius/patrius/attitudes/Attitude.html Attitude] and an [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/AttitudeLaw.html AttitudeLaw] (or [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/AttitudeLawLeg.html AttitudeLawLeg]). Indeed an [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/Attitude.html Attitude] is the current orientation of the spacecraft as the other ones will define the "laws" allowing to determine at each moment, the [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/Attitude.html Attitude].</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>We must not confuse an [{{JavaDoc4.<ins style="font-weight: bold; text-decoration: none;">5.1</ins>}}/fr/cnes/sirius/patrius/attitudes/Attitude.html Attitude] and an [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/AttitudeLaw.html AttitudeLaw] (or [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/AttitudeLawLeg.html AttitudeLawLeg]). Indeed an [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/Attitude.html Attitude] is the current orientation of the spacecraft as the other ones will define the "laws" allowing to determine at each moment, the [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/Attitude.html Attitude].</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>For example, if we have an inertial [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/AttitudeLaw.html AttitudeLaw], the (inertial) [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/Attitude.html Attitude] of the spacecraft will be the same at each moment of the trajectory.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>For example, if we have an inertial [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/AttitudeLaw.html AttitudeLaw], the (inertial) [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/Attitude.html Attitude] of the spacecraft will be the same at each moment of the trajectory.</div></td></tr> <!-- diff cache key w3?hpatrius?hprod:diff:1.41:old-2658:rev-2659:php=table --> </table>

Admin https://patrius.cnes.fr/index.php?title=Tutorials_4.5.1_Attitude&diff=2658&oldid=prev 2020-08-17T08:34:32Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="fr"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Version précédente</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Version du 17 août 2020 à 08:34</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Ligne 1 :</td> <td colspan="2" class="diff-lineno">Ligne 1 :</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Attitude ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Attitude ==</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>We must not confuse an [{{JavaDoc4.<del style="font-weight: bold; text-decoration: none;">5.1</del>}}/fr/cnes/sirius/patrius/attitudes/Attitude.html Attitude] and an [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/AttitudeLaw.html AttitudeLaw] (or [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/AttitudeLawLeg.html AttitudeLawLeg]). Indeed an [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/Attitude.html Attitude] is the current orientation of the spacecraft as the other ones will define the "laws" allowing to determine at each moment, the [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/Attitude.html Attitude].</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>We must not confuse an [{{JavaDoc4.<ins style="font-weight: bold; text-decoration: none;">4</ins>}}/fr/cnes/sirius/patrius/attitudes/Attitude.html Attitude] and an [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/AttitudeLaw.html AttitudeLaw] (or [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/AttitudeLawLeg.html AttitudeLawLeg]). Indeed an [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/Attitude.html Attitude] is the current orientation of the spacecraft as the other ones will define the "laws" allowing to determine at each moment, the [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/Attitude.html Attitude].</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>For example, if we have an inertial [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/AttitudeLaw.html AttitudeLaw], the (inertial) [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/Attitude.html Attitude] of the spacecraft will be the same at each moment of the trajectory.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>For example, if we have an inertial [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/AttitudeLaw.html AttitudeLaw], the (inertial) [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/Attitude.html Attitude] of the spacecraft will be the same at each moment of the trajectory.</div></td></tr> <!-- diff cache key w3?hpatrius?hprod:diff:1.41:old-2652:rev-2658:php=table --> </table>

Admin https://patrius.cnes.fr/index.php?title=Tutorials_4.5.1_Attitude&diff=2652&oldid=prev 2020-08-17T08:27:19Z

<p>Page créée avec « == Attitude == We must not confuse an [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/Attitude.html Attitude] and an [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes... »</p> <p><b>Nouvelle page</b></p><div>== Attitude ==<br /> <br /> We must not confuse an [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/Attitude.html Attitude] and an [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/AttitudeLaw.html AttitudeLaw] (or [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/AttitudeLawLeg.html AttitudeLawLeg]). Indeed an [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/Attitude.html Attitude] is the current orientation of the spacecraft as the other ones will define the &quot;laws&quot; allowing to determine at each moment, the [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/Attitude.html Attitude].<br /> <br /> For example, if we have an inertial [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/AttitudeLaw.html AttitudeLaw], the (inertial) [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/Attitude.html Attitude] of the spacecraft will be the same at each moment of the trajectory.<br /> <br /> But if we have a Sun Pointing [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/AttitudeLaw.html AttitudeLaw], the current [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/Attitude.html Attitude] will change at each step.<br /> <br /> So, most of the time, users will define [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/AttitudeLaw.html AttitudeLaw] or [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/AttitudeLawLeg.html AttitudeLawLeg] and will get the current [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/Attitude.html Attitude] using the &lt;font color=#4169E1&gt;getAttitude()&lt;/font&gt; method.<br /> <br /> == Attitude laws ==<br /> <br /> Building an attitude law is relatively easy, using one of the the constructors available depending of the kind of law you want to use. Next examples show different cases.<br /> <br /> &#039;&#039;&#039;Code examples:&#039;&#039;&#039;<br /> * [[LOFOffsetAttitudeLaw_4.5.1|create a &lt;font color=#FF8C00 title=&quot;Local Orbital Frame&gt;LOF&lt;/font&gt; attitude law]]<br /> * [[SolarPointedAttitudeLaw_4.5.1|create a Solar pointed attitude law]]<br /> * [[TwoDirectionsAttitudeLaw_4.5.1|create a two directions attitude law]]<br /> <br /> == Attitude legs ==<br /> <br /> &#039;&#039;To be written ...&#039;&#039;<br /> <br /> == Attitude sequence ==<br /> <br /> [{{JavaDoc4.5.1}}/fr/cnes/sirius/patrius/attitudes/AttitudesSequence.html AttitudesSequence] is a very powerful concept which allows to define attitude logic all along a mission. Indeed, as it is based on orbital events detection, it avoids to define step by step attitude laws. For example, if we want to have:<br /> * &lt;font color=#FF8C00 title=&quot;Local Velocity Local Horizontal&gt;LVLH&lt;/font&gt; attitude during eclipse<br /> * Sun pointing attitude else<br /> <br /> ... only two &quot;switches&quot; inside the attitude sequence are sufficient. It is coded in the proposed following tutorial.<br /> <br /> &#039;&#039;&#039;Code example:&#039;&#039;&#039; [[SequenceOfAttitudes_4.5.1|create a sequence of attitude laws]]<br /> <br /> [[Category:Tutorials 4.5.1]]</div>

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