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# -*- coding: utf-8 -*-
# ##### BEGIN GPL LICENSE BLOCK #####
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####
bl_info = {
"name": "fast_path",
"author": "Laurent Laget",
"version": (0, 5),
"blender": (2, 78, 5),
"location": "Add",
"description": "Create fast_path",
"warning": "",
"wiki_url": "",
"category": "Add",
}
import bpy
def main(context):
for ob in context.scene.objects:
print(ob)
#Declaration of variables
forwardaxe = 'TRACK_NEGATIVE_Y'
upaxe = 'UP_Z'
def pathcreation(forwardaxe,upaxe):
#Get duration
duration = bpy.context.scene.frame_end
#Get the name of the selected object and add a follow path constrain to it
objectname = bpy.context.active_object
bpy.ops.object.constraint_add(type='FOLLOW_PATH')
# Add a curve object , name it, delete vertices and make it ready for shift + right click draw
bpy.ops.curve.primitive_nurbs_path_add()
bpy.context.object.name = "Path"
pathname= bpy.context.active_object
bpy.ops.object.editmode_toggle()
bpy.ops.curve.delete(type='VERT')
#Go back to object mode , set origin and reselect the selected object , push the name of the path in the follow path constraint and animate it
bpy.ops.object.editmode_toggle()
bpy.ops.object.origin_set(type='ORIGIN_GEOMETRY')
bpy.context.scene.objects.active = objectname
bpy.context.object.constraints["Follow Path"].target = pathname
bpy.context.object.constraints["Follow Path"].use_curve_follow = True
#Test if the selected object is different from a camera, and set variables accordingly
if objectname.type != 'CAMERA':
forwardaxe = 'TRACK_NEGATIVE_Y'
upaxe = 'UP_Z'
else:
forwardaxe = 'TRACK_NEGATIVE_Z'
upaxe = 'UP_Y'
#Get specific orientations
bpy.context.object.constraints["Follow Path"].forward_axis = forwardaxe
bpy.context.object.constraints["Follow Path"].up_axis = upaxe
override={'constraint':objectname.constraints["Follow Path"]}
bpy.ops.constraint.followpath_path_animate(override,constraint='Follow Path')
#reselect the path
bpy.context.scene.objects.active = pathname
bpy.context.object.data.path_duration = duration
bpy.ops.object.editmode_toggle()
objectname.location[0] = 0
objectname.location[1] = 0
objectname.location[2] = 0
objectname.rotation_euler[0] = 0
objectname.rotation_euler[1] = 0
objectname.rotation_euler[2] = 0
#Class fastpath
class fastpath(bpy.types.Operator):
"""Create a path for the selected object"""
bl_idname = "object.fastpath"
bl_label = "fastpath"
bl_options = {'REGISTER', 'UNDO'}
def invoke(self, context, event):
pathcreation(forwardaxe,upaxe)
return {'FINISHED'}
addon_keymaps = []
def menu_item(self, context):
self.layout.operator(fastpath.bl_idname, text="fastpath", icon="PLUGIN")
def register():
bpy.utils.register_module(__name__)
bpy.types.INFO_MT_curve_add.append(menu_item)
global addon_keymaps
wm = bpy.context.window_manager
km = wm.keyconfigs.addon.keymaps.new(name = "3D View", space_type = "VIEW_3D")
kmi = km.keymap_items.new(fastpath.bl_idname, 'LEFTMOUSE', 'DOUBLE_CLICK', ctrl=True)
addon_keymaps.append(km)
def unregister():
bpy.utils.unregister_module(__name__)
bpy.types.INFO_MT_curve_add.remove(menu_item)
global addon_keymaps
wm = bpy.context.window_manager
for km in addon_keymaps:
for kmi in km.keymap_items:
km.keymap_items.remove(kmi)
wm.keyconfigs.addon.keymaps.remove(km)
addon_keymaps.clear()
if __name__ == "__main__":
register()
Owner

ethanaeris commented May 25, 2017 edited

Installation:

  1. Start Blender and open User Preferences. Click on the addons tab
  2. Click "install from file" , then choose downloaded zip.
  3. Check the addon to activate, then save user preferences.

How to use:
Select any objet and press Ctrl+double left mouse button
or press shift + A -> curve ->fastpath
Draw your path with shift + click

The script will change the forward and up axis if the object is a camera !

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