Method New() is automatically called when you create a type instance, so you could go:
Type DispPos
Field d:Vec[255]
Method New()
For Local:i = 0 until d.length
d[i] = New Vec
Next
EndMethod
End Type
Type DispPos
Field d:Vec[255]
Method New()
For Local:i = 0 until d.length
d[i] = New Vec
Next
EndMethod
End Type