 | | | How do I get the curveeditorcontrol 's fcurve object | How do I get the curveeditorcontrol 's fcurve object 2005-05-01 - By Guy Rabiller
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Hi Felix,
not sure to fully understand what you are after, on my side I often deal with
CustomPPG connected to a Custom Operator ( in place of Parameters directly on
the Operator, I put them on CustomPPGs, wich offers more possibilities ).
In this case, if you want a profile curve it's very easy, no need to use the
CComAPIHandler.
You can add a FCurve this way:
Parameter oParam( oProp.AddFCurveParameter( L"MyFCurve" ) );
FCurve oFCurve( oParam.GetValue() );
You can edit the Curve directly:
oFCurve.RemoveKeys();
oFCurve.BeginEdit();
oFCurve.AddKey( CTime(1), 100L );
oFCurve.AddKey( CTime(100), 100L );
oFCurve.EndEdit();
>From the Operator you can retrieve the FCurve:
InputPort InPort( InOp.GetPortAt(0,0,0) ); // If CustomPPG is on Group 0 / Port
0
CustomProperty InPSet( InPort.GetValue() );
CParameterRefArray oParams( InPSet.GetParameters() );
FCurve oMyFCurve( Parameter( oParams[0] ).GetValue() ); // If FCurve is your
first parameter
Then you can evaluate the FCurve:
float fValue( oMyFCurve.Eval( 2.0f ) ); // Get Y value at X = 2.0
Does it help ?
--
guy rabiller | 3d technical director @ LaMaison
-- -- Original Message -- --
From: "Felix Gebhardt" <gebhardt@(protected)>
To: <XSI@(protected)>
Sent: Saturday, April 30, 2005 9:24 PM
Subject: Re: [C++ API] How do I get the curveeditorcontrol's fcurve object
>
> Hey Reinhard, how are you doing?
>
> Actually I have this very message in my treasure box of rare
> CComAPIHandler examples. Unfortunately having the returned CValue as an
> argument of the CRef constructor like in Andrew Skowronski's reply
> doesn't give me a valid CRef for some reason. Just a master girded with
> seven belts of COMwisdom would know why.
>
> But I'm really close. The LogMessage already converts to the correct
> ClassIDName.
>
> Thanks a lot for your help,
> Felix
>
>
>
> Reinhard Claus wrote:
>
> >Hm I had a problem a while ago that might be related to this. I had to deal
> >with point subcomponent selections using the c++ api and had similar
> >problems as you're reporting.
> >It turned out that the SubComponent object isn't yet fully supported by the
> >cppapi, and I had to use the CComApi... wrappers all the way through.
> >Using the Invoke method etc. etc... Bad times.
> >
> >http://www.softimage.com/Community/Xsi/Discuss/Archives/xsi.archive.0409
/msg01636.htm
> >
> >Reinhard
> >
> ---
> Unsubscribe? Mail Majordomo@(protected) with the following text in body:
> unsubscribe xsi
>
>
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<DIV><FONT face=Arial size=2>Hi Felix,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>not sure to fully understand what you are after,
on
my side I often deal with CustomPPG connected to a Custom Operator ( in place
of
Parameters directly on the Operator, I put them on CustomPPGs, wich offers
more possibilities ).</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>In this case, if you want a profile curve it's
very
easy, no need to use the CComAPIHandler.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>You can add a FCurve this way:</FONT></DIV>
<DIV><FONT face=Courier size=2>Parameter oParam( oProp.AddFCurveParameter(
L"MyFCurve" ) );<BR>FCurve oFCurve( oParam.GetValue() );</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>You can edit the Curve directly:<BR><FONT
face=Courier>oFCurve.RemoveKeys();<BR>oFCurve.BeginEdit();<BR>oFCurve.AddKey(
CTime(1), 100L );<BR>oFCurve.AddKey( CTime(100), 100L
);<BR>oFCurve.EndEdit();</FONT></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>From the Operator you can retrieve the
FCurve:</FONT></DIV>
<DIV><FONT face=Courier size=2>InputPort InPort( InOp.GetPortAt(0,0,0) );
// If CustomPPG is on Group 0 / Port 0<BR>CustomProperty InPSet(
InPort.GetValue() );</FONT></DIV>
<DIV><FONT face=Courier size=2>CParameterRefArray oParams(
InPSet.GetParameters() );</FONT></DIV>
<DIV><FONT face=Courier size=2>FCurve oMyFCurve( Parameter( oParams[0]
).GetValue() ); // If FCurve is your first parameter</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Then you can evaluate the FCurve:</FONT></DIV>
<DIV><FONT face=Courier size=2>float fValue( oMyFCurve.Eval( 2.0f ) ); // Get Y
value at X = 2.0</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Does it help ?</FONT></DIV>
<DIV><FONT face=Arial size=2>--<BR>guy rabiller | 3d technical director @
LaMaison</FONT></DIV>
<DIV><FONT face=Arial size=2><BR> </DIV></FONT>
<DIV><FONT face=Arial size=2>-- -- Original Message -- -- </FONT>
<DIV><FONT face=Arial size=2>From: "Felix Gebhardt" <</FONT><A
href="mailto:gebhardt@(protected)"><FONT face=Arial
size=2>gebhardt@(protected)</FONT></A><FONT face=Arial
size=2>></FONT></DIV>
<DIV><FONT face=Arial size=2>To: <</FONT><A
href="mailto:XSI@(protected)"><FONT face=Arial
size=2>XSI@(protected)</FONT></A><FONT face=Arial size=2>></FONT></DIV>
<DIV><FONT face=Arial size=2>Sent: Saturday, April 30, 2005 9:24 PM</FONT></DIV>
<DIV><FONT face=Arial size=2>Subject: Re: [C++ API] How do I get the
curveeditorcontrol's fcurve object</FONT></DIV></DIV>
<DIV><FONT face=Arial><BR><FONT size=2></FONT></FONT></DIV><FONT face=Arial
size=2>> <BR>> Hey Reinhard, how are you doing?<BR>> <BR>> Actually
I have this very message in my treasure box of rare <BR>>
CComAPIHandler examples. Unfortunately having the returned CValue as an <BR>>
;
argument of the CRef constructor like in Andrew Skowronski's reply <BR>>
doesn't give me a valid CRef for some reason. Just a master girded with <BR>>
;
seven belts of COMwisdom would know why.<BR>> <BR>> But I'm really close.
The LogMessage already converts to the correct <BR>> ClassIDName.<BR>>
<BR>> Thanks a lot for your help,<BR>> Felix<BR>> <BR>> <BR>>
<BR>> Reinhard Claus wrote:<BR>> <BR>> >Hm I had a problem a while
ago that might be related to this. I had to deal <BR>> >with point
subcomponent selections using the c++ api and had similar <BR>> >problems
as you're reporting. <BR>> >It turned out that the SubComponent object
isn't yet fully supported by the <BR>> >cppapi, and I had to use the
CComApi... wrappers all the way through.<BR>> >Using the Invoke method
etc. etc... Bad times.<BR>> ><BR>>
>http://www.softimage.com/Community/Xsi/Discuss/Archives/xsi.archive.0409
/msg01636.htm<BR>>
><BR>> >Reinhard<BR>> ><BR>> ---<BR>> Unsubscribe? Mail
</FONT><A href="mailto:Majordomo@(protected)"><FONT face=Arial
size=2>Majordomo@(protected)</FONT></A><FONT face=Arial size=2> with the
following text in body:<BR>> unsubscribe xsi<BR>> <BR>>
</FONT></BODY></HTML>
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