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#!BPY
"""
Name: 'Script Constraint'
Blender: 245
Group: 'ScriptTemplate'
Tooltip: 'Add a new script for custom constraints'
"""
from Blender import Window
import bpy
script_data = \
"""#BPYCONSTRAINT
'''
PyConstraint template, access this in the "add constraint" scripts submenu.
Add docstring here
'''
import Blender
from Blender import Draw
from Blender import Mathutils
import math
'''
This variable specifies the number of targets
that this constraint can use
'''
NUM_TARGETS = 1
'''
This function is called to evaluate the constraint
obmatrix: (Matrix) copy of owner's 'ownerspace' matrix
targetmatrices: (List) list of copies of the 'targetspace' matrices of the targets (where applicable)
idprop: (IDProperties) wrapped data referring to this
constraint instance's idproperties
'''
def doConstraint(obmatrix, targetmatrices, idprop):
# Separate out the tranformation components for easy access.
obloc = obmatrix.translationPart() # Translation
obrot = obmatrix.toEuler() # Rotation
obsca = obmatrix.scalePart() # Scale
# Define user-settable parameters.\
# Must also be defined in getSettings().
if not idprop.has_key('user_toggle'): idprop['user_toggle'] = 1
if not idprop.has_key('user_slider'): idprop['user_slider'] = 1.0
# Do stuff here, changing obloc, obrot, and obsca.
# Convert back into a matrix for loc, scale, rotation,
mtxloc = Mathutils.TranslationMatrix( obloc )
mtxrot = obrot.toMatrix().resize4x4()
mtxsca = Mathutils.Matrix([obsca[0],0,0,0], [0,obsca[1],0,0], [0,0,obsca[2],0], [0,0,0,1])
# Recombine the separate elements into a transform matrix.
outputmatrix = mtxsca * mtxrot * mtxloc
# Return the new matrix.
return outputmatrix
'''
This function manipulates the matrix of a target prior to sending it to doConstraint()
target_object: wrapped data, representing the target object
subtarget_bone: wrapped data, representing the subtarget pose-bone/vertex-group (where applicable)
target_matrix: (Matrix) the transformation matrix of the target
id_properties_of_constraint: (IDProperties) wrapped idproperties
'''
def doTarget(target_object, subtarget_bone, target_matrix, id_properties_of_constraint):
return target_matrix
'''
This function draws a pupblock that lets the user set
the values of custom settings the constraint defines.
This function is called when the user presses the settings button.
idprop: (IDProperties) wrapped data referring to this
constraint instance's idproperties
'''
def getSettings(idprop):
# Define user-settable parameters.
# Must also be defined in getSettings().
if not idprop.has_key('user_toggle'): idprop['user_toggle'] = 1
if not idprop.has_key('user_slider'): idprop['user_slider'] = 1.0
# create temporary vars for interface
utoggle = Draw.Create(idprop['user_toggle'])
uslider = Draw.Create(idprop['user_slider'])
# define and draw pupblock
block = []
block.append("Buttons: ")
block.append(("Toggle", utoggle, "This is a toggle button."))
block.append("More buttons: ")
block.append(("Slider", uslider, 0.0000001, 1000.0, "This is a number field."))
retval = Draw.PupBlock("Constraint Template", block)
# update id-property values after user changes settings
if (retval):
idprop['user_toggle']= utoggle.val
idprop['user_slider']= uslider.val
"""
new_text = bpy.data.texts.new('pyconstraint_template.py')
new_text.write(script_data)
bpy.data.texts.active = new_text
Window.RedrawAll()
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