Math whiz question - howto place objects relative

[zaira]

3 x i :

 

I am a looser in geometry.

 

I want to place two objects (XMarkerHeading) relative to a rectangle (Cage) in my Papyrus script:

 

 

I have no idea how to calculate the angles and positions

 

What I have is X,Y,Z, AngleX, AngleY, AngleZ, Width, Length and Height of the rectangle

[spoonsinger]

Triangles based on the centre point of the rectangle to centre point of the objects using weird old BC era Greek technology - also now widely available on wikipedia? IGMC

[zaira]

Triangles based on the centre point of the rectangle to centre point of the objects using weird old BC era Greek technology - also now widely available on wikipedia? IGMC

 

XMarkerHeadings are directed rectangles - I have drawn triangles to show the direction

 

[bjornk]

How about this? In pseudo-papyrus...

 

C: Cage

G: Green marker

O: Orange marker

 

; Position the green marker right in the middle of the cage:

G.SetPos x (C.GetPos x)

G.SetPos y (C.GetPos y)

G.SetPos z (C.GetPos z)

 

; Set G's angles identical to C:

G.SetAngle x (C.GetPos x)

G.SetAngle y (C.GetPos y)

G.SetAngle z (C.GetPos z)

 

; Position the orange marker (C.length is the length of cage):

 

O.SetPos x (C.length + G.GetPos x)

O.SetPos y (C.length + G.GetPos y)

O.SetPos z (G.GetPos z)

 

; Set O's angles identical to G, except the z axis:

O.SetAngle x (G.GetPos x)

O.SetAngle y (G.GetPos y)

O.SetAngle z (-G.GetPos z) [or O.SetAngle z (180 + G.GetPos z)]

[Guest]

Something in real Papyrus:

 

 

Function translate(ObjectReference toMove, ObjectReference dst, float offset, float rotation)
  float anglez = dst.GetAngleZ()
  float anglex = dst.GetAngleX() * -1
  float offsetz = offset * math.sin(anglex)
  float tempfloat = offset * math.cos(anglex)
  float offsetx = tempfloat * math.sin(anglez)
  float offsety = tempfloat * math.cos(anglez)
  float posx = dst.GetPositionX() + offsetx
  float posy = dst.GetPositionY() + offsety
  float posz = dst.GetPositionZ() + offsetz
  toMove.setAngle(dst.getAngleX(), dst.getAngleY(), dst.getAngleZ()+rotation)
  toMove.TranslateTo(posx, posy, posz, 0, 0, dst.getAngleZ()+rotation, 90.0, 25.0) 
EndFunction

 

Call it with the ObjectReference to be moved (toMove) and the target one for reference (dst), and use offset as distance, and rotation as angle (in degrees.)

 

[zaira]

Cage X,Y,Z is not the center - it is a corner of the cage

[bjornk]

Totally forgot about the trig functions.

[zaira]

Now making everything more complicated:

 

Orange is the door

Blue is the marker for the NPC who opens the door

[Guest]

translate(npcMarker, theDoor, 65.0, -45.0)

 

But if the "door" is the yellow sign (and not the orange marker): translate(npcMarker, theDoor, -72.0, 45.0)

[zaira]

TranslateTo won't work for markers - it works only for objects with 3d

[Guest]

Use placeAt, and remove the last two parameters.

[zaira]

Use placeAt, and remove the last two parameters.

 

placeAt? You mean MoveTo? I don't spawn new markers - I'll move existing markers.

[Guest]

 

placeAt? You mean MoveTo? I don't spawn new markers - I'll move existing markers.

 

 

Sorry, you are right. Between different games, I sometimes confuse the functions offered here and there.

The correct functions are (to be replaced in my previous code, and you need two, one for the position, one for the rotation):

 

 

toMove.MoveTo(dst, offsetx, offsety, offsetz)
toMove.SetAngle(0.0, 0.0, float dst.getAngleZ()+rotation)