<div dir="ltr">I have created a small test, a spline doing a U-turn containing the following points:<div><br></div><div>0,2 1,2 2,2 3,2 4,2</div><div> 4,1</div><div>0,0 1,0 2,0 3,0 4,0</div>
<div><br></div><div>getCurveLength() returns 2, so indeed the distance from start to end.</div><div><br></div><div style>There is a newer version of SISL, maybe we should use it?</div><div style><br></div><div style>Best regards,</div>
<div style>Stefan</div><div><br></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">2013/8/27 Stefan Haase <span dir="ltr"><<a href="mailto:stefan.haase@dfki.de" target="_blank">stefan.haase@dfki.de</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Hi guys,</div><div><br></div><div>I got the following problem: </div><div>The returned length of a spline is always nearly the same than the distance from start to end, even if the spline contains several curves (see attached images).</div>
<div><br></div><div>E.g.:</div><div><div>Calculated trajectory: </div><div><div>( 5.65 3.55 2.30769) ( 5.75 3.65 2.37712) ( 5.85 3.75 2.44654) ( 5.95 3.85 2.52591) ( 6.05 3.95 2.635) ( 6.15 4.05 2.73418) ( 6.25 4.15 2.8433) ( 6.35 4.25 2.97224) ( 6.45 4.35 3.09124) ( 6.55 4.45 3.22018) ( 6.65 4.45 3.2896) ( 6.75 4.45 3.36897) ( 6.85 4.45 3.43839) ( 6.95 4.55 3.54748) ( 7.05 4.65 3.64666) ( 7.15 4.65 3.69627) ( 7.25 4.65 3.75579) ( 7.35 4.65 3.82521) ( 7.45 4.65 3.88472) ( 7.55 4.65 3.9343) ( 7.65 4.75 4.04342) ( 7.75 4.85 4.09299) ( 7.85 4.95 4.13266) ( 7.95 5.05 4.17236) ( 8.05 5.15 4.22193) ( 8.15 5.25 4.2616) ( 8.25 5.35 4.2616) ( 8.35 5.45 4.2616) ( 8.45 5.55 4.2616) ( 8.55 5.65 4.2616) ( 8.65 5.75 4.2616) ( 8.75 5.75 4.2616) ( 8.85 5.85 4.2616) ( 8.95 5.95 4.2616) ( 9.05 6.05 4.27154) ( 9.15 6.15 4.27154) ( 9.25 6.25 4.28145) ( 9.35 6.35 4.27154) ( 9.45 6.45 4.2616) ( 9.55 6.55 4.25169) ( 9.65 6.65 4.24179) ( 9.75 6.75 4.23184) ( 9.85 6.85 4.22193) ( 9.95 6.85 4.22193) ( 10.05 6.85 4.22193) ( 10.15 6.85 4.22193) ( 10.25 6.95 4.19218) ( 10.35 7.05 4.15251) ( 10.45 7.05 4.13266) ( 10.55 7.05 4.11285) ( 10.65 7.05 4.09299) ( 10.75 7.15 4.05333) ( 10.85 7.25 4.04342) ( 10.95 7.35 4.02357) ( 11.05 7.45 3.99381) ( 11.15 7.55 4.00372) ( 11.25 7.65 4.02357) ( 11.25 7.75 4.02357) ( 11.25 7.85 4.01366) ( 11.25 7.95 3.99381) ( 11.25 8.05 3.96406) ( 11.25 8.15 3.92439) ( 11.25 8.25 3.90454) ( 11.25 8.35 3.86487) ( 11.25 8.45 3.85497) ( 11.25 8.55 3.82521) ( 11.25 8.65 3.79545) ( 11.25 8.75 3.7756) ( 11.25 8.85 3.75579) ( 11.35 8.95 3.70618) ( 11.45 9.05 3.66651) ( 11.55 9.15 3.6169) ( 11.65 9.25 3.57724) ( 11.65 9.35 3.55742) ( 11.65 9.45 3.52766) ( 11.75 9.55 3.50781) ( 11.85 9.65 3.46815) ( 11.85 9.75 3.43839) ( 11.95 9.85 3.40863) ( 12.05 9.95 3.35906) </div>
</div><div><br></div><div>CURVE LENGTH 9.11183<br></div><div>POINT COUNT 80<br></div><div>DIMENSION 3<br></div><div><br></div><div>Distance from start to end (3D): 9.117951531495708</div></div><br clear="all"><div>
Anyone any idea what could be the problem?</div><div><br></div><div>Best regards,</div><div>Stefan</div><div><br></div>-- <br> Dipl.-Inf. Stefan Haase<br> Space Robotics and Animation<br> <br>Standort Bremen:<br>
DFKI GmbH<br> Robotics Innovation Center<br> Robert-Hooke-Straße 5<br> 28359 Bremen, Germany<br> <br> Phone: <a href="tel:%2B49%20%280%29421%20178%2045-4108" value="+49421178454108" target="_blank">+49 (0)421 178 45-4108</a><br>
Fax: <a href="tel:%2B49%20%280%29421%20178%2045-4150" value="+49421178454150" target="_blank">+49 (0)421 178 45-4150</a><br> E-Mail: <a href="mailto:Stefan.Haase@dfki.de" target="_blank">Stefan.Haase@dfki.de</a><br>
<br> Weitere Informationen: <a href="http://www.dfki.de/robotik" target="_blank">http://www.dfki.de/robotik</a><br> -----------------------------------------------------------------------<br> Deutsches Forschungszentrum fuer Kuenstliche Intelligenz GmbH<br>
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Amtsgericht Kaiserslautern, HRB 2313<br> Sitz der Gesellschaft: Kaiserslautern (HRB 2313)<br> USt-Id.Nr.: DE 148646973<br> Steuernummer: 19/673/0060/3<br> -----------------------------------------------------------------------
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</blockquote></div><br><br clear="all"><div><br></div>-- <br> Dipl.-Inf. Stefan Haase<br> Space Robotics and Animation<br> <br>Standort Bremen:<br> DFKI GmbH<br> Robotics Innovation Center<br> Robert-Hooke-Straße 5<br> 28359 Bremen, Germany<br>
<br> Phone: +49 (0)421 178 45-4108<br> Fax: +49 (0)421 178 45-4150<br> E-Mail: <a href="mailto:Stefan.Haase@dfki.de" target="_blank">Stefan.Haase@dfki.de</a><br> <br> Weitere Informationen: <a href="http://www.dfki.de/robotik" target="_blank">http://www.dfki.de/robotik</a><br>
-----------------------------------------------------------------------<br> Deutsches Forschungszentrum fuer Kuenstliche Intelligenz GmbH<br> Firmensitz: Trippstadter Straße 122, D-67663 Kaiserslautern<br> Geschaeftsfuehrung: Prof. Dr. Dr. h.c. mult. Wolfgang Wahlster <br>
(Vorsitzender) Dr. Walter Olthoff<br> Vorsitzender des Aufsichtsrats: Prof. Dr. h.c. Hans A. Aukes<br> Amtsgericht Kaiserslautern, HRB 2313<br> Sitz der Gesellschaft: Kaiserslautern (HRB 2313)<br> USt-Id.Nr.: DE 148646973<br>
Steuernummer: 19/673/0060/3<br> -----------------------------------------------------------------------
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