[ODE] ODE with C#

Aras Pranckevicius nearaz at interamotion.com
Fri Apr 11 06:13:02 2003


This is a multi-part message in MIME format.

------=_NextPart_000_0012_01C30045.476D3A70
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

Side note:

There appears to be Managed C++ stuff in ODE contribs; though I haven't =
used it at all. Won't it be easier to use it from C#?


Aras Pranckevicius aka NeARAZ
http://www.gim.ktu.lt/nesnausk/nearaz/
  I'm currently writing a very thin C# wrapper for ODE. Basically it =
just does a lot of DLL imports and some marshalling for returning float =
arrays. However I've got one big problem: After calling the =
dSpaceCollide function I get a NULL reference exception as soon as I =
step out of the dNearCallback function. Does anybody have a clue what =
could cause a NULL reference exception just after the callback function =
finished ?

------=_NextPart_000_0012_01C30045.476D3A70
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML xmlns=3D"http://www.w3.org/TR/REC-html40" xmlns:o =3D=20
"urn:schemas-microsoft-com:office:office" xmlns:w =3D=20
"urn:schemas-microsoft-com:office:word"><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3DWord.Document name=3DProgId>
<META content=3D"MSHTML 6.00.2600.0" name=3DGENERATOR>
<META content=3D"Microsoft Word 10" name=3DOriginator><LINK=20
href=3D"cid:filelist.xml@01C30036.9DA6E3A0" rel=3DFile-List><!--[if gte =
mso 9]><xml>
 <o:OfficeDocumentSettings>
  <o:DoNotRelyOnCSS/>
 </o:OfficeDocumentSettings>
</xml><![endif]--><!--[if gte mso 9]><xml>
 <w:WordDocument>
  <w:SpellingState>Clean</w:SpellingState>
  <w:GrammarState>Clean</w:GrammarState>
  <w:DocumentKind>DocumentEmail</w:DocumentKind>
  <w:HyphenationZone>21</w:HyphenationZone>
  <w:EnvelopeVis/>
  <w:Compatibility>
   <w:BreakWrappedTables/>
   <w:SnapToGridInCell/>
   <w:WrapTextWithPunct/>
   <w:UseAsianBreakRules/>
  </w:Compatibility>
  <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel>
 </w:WordDocument>
</xml><![endif]-->
<STYLE>@page Section1 {size: 595.3pt 841.9pt; margin: 70.85pt 70.85pt =
2.0cm 70.85pt; mso-header-margin: 35.4pt; mso-footer-margin: 35.4pt; =
mso-paper-source: 0; }
P.MsoNormal {
	FONT-SIZE: 12pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman"; =
mso-style-parent: ""; mso-pagination: widow-orphan; =
mso-fareast-font-family: "Times New Roman"
}
LI.MsoNormal {
	FONT-SIZE: 12pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman"; =
mso-style-parent: ""; mso-pagination: widow-orphan; =
mso-fareast-font-family: "Times New Roman"
}
DIV.MsoNormal {
	FONT-SIZE: 12pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman"; =
mso-style-parent: ""; mso-pagination: widow-orphan; =
mso-fareast-font-family: "Times New Roman"
}
A:link {
	COLOR: blue; TEXT-DECORATION: underline; text-underline: single
}
SPAN.MsoHyperlink {
	COLOR: blue; TEXT-DECORATION: underline; text-underline: single
}
A:visited {
	COLOR: purple; TEXT-DECORATION: underline; text-underline: single
}
SPAN.MsoHyperlinkFollowed {
	COLOR: purple; TEXT-DECORATION: underline; text-underline: single
}
SPAN.EmailFormatvorlage17 {
	COLOR: windowtext; FONT-FAMILY: Arial; mso-style-type: =
personal-compose; mso-style-noshow: yes; mso-ansi-font-size: 10.0pt; =
mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Arial; =
mso-hansi-font-family: Arial; mso-bidi-font-family: Arial
}
SPAN.SpellE {
	mso-style-name: ""; mso-spl-e: yes
}
DIV.Section1 {
	page: Section1
}
</STYLE>
<!--[if gte mso 10]>
<style>
 /* Style Definitions */=20
 table.MsoNormalTable
	{mso-style-name:"Normale Tabelle";
	mso-tstyle-rowband-size:0;
	mso-tstyle-colband-size:0;
	mso-style-noshow:yes;
	mso-style-parent:"";
	mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
	mso-para-margin:0cm;
	mso-para-margin-bottom:.0001pt;
	mso-pagination:widow-orphan;
	font-size:10.0pt;
	font-family:"Times New Roman";}
</style>
<![endif]--></HEAD>
<BODY lang=3DDE style=3D"tab-interval: 35.4pt" vLink=3Dpurple =
link=3Dblue=20
bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Side note:</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>There appears to be Managed C++ stuff =
in ODE=20
contribs; though I haven't used it at all. Won't it be easier to use it =
from=20
C#?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV>Aras Pranckevicius aka NeARAZ<BR><A=20
href=3D"http://www.gim.ktu.lt/nesnausk/nearaz/">http://www.gim.ktu.lt/nes=
nausk/nearaz/</A></DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial"><FONT face=3DArial size=3D2><SPAN =
lang=3DEN-GB=20
  style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-ansi-language: =
EN-GB">I=92m=20
  currently writing a very thin C# wrapper for ODE. Basically it just =
does a lot=20
  of DLL imports and some marshalling for returning float arrays. =
However I=92ve=20
  got one big problem: After calling the <SPAN =
class=3DSpellE>dSpaceCollide</SPAN>=20
  function I get a NULL reference exception as soon as I step out of the =
<SPAN=20
  class=3DSpellE>dNearCallback</SPAN> function. Does anybody have a clue =
what=20
  could cause a NULL reference exception just after the <SPAN=20
  class=3DSpellE>callback</SPAN> function finished=20
?</SPAN></FONT></DIV></BLOCKQUOTE></BODY></HTML>

------=_NextPart_000_0012_01C30045.476D3A70--