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authorCharles Krinke2008-07-19 14:45:10 +0000
committerCharles Krinke2008-07-19 14:45:10 +0000
commit9ff9279a7cd76a6a5aaf84ef759053d7bde4001a (patch)
tree3088a04210aabf2ae356ab56363265a55490239a /OpenSim/Region/ScriptEngine/Common
parentUpdate svn properties. Fix some inconsistent newlines. (diff)
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Mantis#1785. Thank you kindly, Junta_Kohime for a patch that"
llAxes2Rot now implemented. Important note: quaternion <x,y,z,s> is equal to <-x,-y,-z,-s>. The result may be different from LSL output, but it is correct. A problem of rounding caused an error of square rooting of zero as negative number, corrected by squaring again. Function tested 360° along 3 axes. Vector fwd, left and up have to be normalized.
Diffstat (limited to 'OpenSim/Region/ScriptEngine/Common')
-rw-r--r--OpenSim/Region/ScriptEngine/Common/LSL_BuiltIn_Commands.cs34
1 files changed, 31 insertions, 3 deletions
diff --git a/OpenSim/Region/ScriptEngine/Common/LSL_BuiltIn_Commands.cs b/OpenSim/Region/ScriptEngine/Common/LSL_BuiltIn_Commands.cs
index 682d566..40e225d 100644
--- a/OpenSim/Region/ScriptEngine/Common/LSL_BuiltIn_Commands.cs
+++ b/OpenSim/Region/ScriptEngine/Common/LSL_BuiltIn_Commands.cs
@@ -423,10 +423,38 @@ namespace OpenSim.Region.ScriptEngine.Common
423 public LSL_Types.Quaternion llAxes2Rot(LSL_Types.Vector3 fwd, LSL_Types.Vector3 left, LSL_Types.Vector3 up) 423 public LSL_Types.Quaternion llAxes2Rot(LSL_Types.Vector3 fwd, LSL_Types.Vector3 left, LSL_Types.Vector3 up)
424 { 424 {
425 m_host.AddScriptLPS(1); 425 m_host.AddScriptLPS(1);
426 NotImplemented("llAxes2Rot"); 426 double x,y,z,s;
427 return new LSL_Types.Quaternion(); 427 int f=0;
428 // Important Note: q1=<x,y,z,s> is equal to q2=<-x,-y,-z,-s>
429 // Computing quaternion x,y,z,s values
430 x=((fwd.x-left.y-up.z+1)/4);
431 x*=x;
432 x=Math.Sqrt(Math.Sqrt(x));
433 y=((1-up.z)/2-x*x);
434 y*=y;
435 y=Math.Sqrt(Math.Sqrt(y));
436 z=((1-left.y)/2-x*x);
437 z*=z;
438 z=Math.Sqrt(Math.Sqrt(z));
439 s=(1-x*x-y*y-z*z);
440 s*=s;
441 s=Math.Sqrt(Math.Sqrt(s));
442
443 // Set f for signs detection
444 if (fwd.y+left.x >= 0){f+=1;}
445 if (fwd.z+up.x >= 0){f+=2;}
446 if (left.z-up.y >= 0){f+=4;}
447 // Set correct quaternion signs based on f value
448 if (f==0){x=-x;}
449 if (f==1){x=-x;y=-y;}
450 if (f==2){x=-x;z=-z;}
451 if (f==3){s=-s;}
452 if (f==4){x=-x;s=-s;}
453 if (f==5){z=-z;}
454 if (f==6){y=-y;}
455 return new LSL_Types.Quaternion(x, y, z, s);
428 } 456 }
429 457
430 public LSL_Types.Vector3 llRot2Fwd(LSL_Types.Quaternion r) 458 public LSL_Types.Vector3 llRot2Fwd(LSL_Types.Quaternion r)
431 { 459 {
432 m_host.AddScriptLPS(1); 460 m_host.AddScriptLPS(1);