├── README.md ├── BDENTAL_ALIGN_Props.py ├── __init__.py ├── BDENTAL_ALIGN_Panel.py ├── Operators ├── BDENTAL_ALIGN_Utils.py └── BDENTAL_ALIGN_Operators.py └── LICENSE /README.md: -------------------------------------------------------------------------------- 1 | # BDENTAL_ALIGN 2 | Blender addo-on for Dental meshs alignement 3 | -------------------------------------------------------------------------------- /BDENTAL_ALIGN_Props.py: -------------------------------------------------------------------------------- 1 | import bpy 2 | 3 | from bpy.props import ( 4 | StringProperty, 5 | IntProperty, 6 | FloatProperty, 7 | EnumProperty, 8 | FloatVectorProperty, 9 | BoolProperty, 10 | ) 11 | 12 | 13 | class BDENTAL_ALIGN_Props(bpy.types.PropertyGroup): 14 | 15 | ############################################################################################# 16 | # BDENTAL_ALIGN Properties : 17 | ############################################################################################# 18 | IcpVidDict: StringProperty( 19 | name="IcpVidDict", 20 | default="None", 21 | description="ICP Vertices Pairs str(Dict)", 22 | ) 23 | 24 | ####################### 25 | Progress_Bar: FloatProperty( 26 | name="Progress_Bar", 27 | description="Progress_Bar", 28 | subtype="PERCENTAGE", 29 | default=0.0, 30 | min=0.0, 31 | max=100.0, 32 | soft_min=0.0, 33 | soft_max=100.0, 34 | step=1, 35 | precision=1, 36 | ) 37 | 38 | ####################### 39 | AlignModalState : BoolProperty(description="Align Modal state ", default=False) 40 | useICP : BoolProperty(description="use ICP mode ", default=True) 41 | 42 | 43 | ################################################################################################# 44 | # Registration : 45 | ################################################################################################# 46 | 47 | classes = [ 48 | BDENTAL_ALIGN_Props, 49 | ] 50 | 51 | 52 | def register(): 53 | 54 | for cls in classes: 55 | bpy.utils.register_class(cls) 56 | 57 | bpy.types.Scene.BDENTAL_ALIGN_Props = bpy.props.PointerProperty( 58 | type=BDENTAL_ALIGN_Props 59 | ) 60 | 61 | 62 | def unregister(): 63 | 64 | for cls in reversed(classes): 65 | bpy.utils.unregister_class(cls) 66 | 67 | del bpy.types.Scene.BDENTAL_ALIGN_Props 68 | 69 | 70 | ##################################### 71 | -------------------------------------------------------------------------------- /__init__.py: -------------------------------------------------------------------------------- 1 | # ---------------------------------------------------------- 2 | # File __init__.py 3 | # ---------------------------------------------------------- 4 | 5 | # Addon info 6 | # ##### BEGIN GPL LICENSE BLOCK ##### 7 | # 8 | # This program is free software; you can redistribute it and/or 9 | # modify it under the terms of the GNU General Public License 10 | # as published by the Free Software Foundation; either version 2 11 | # of the License, or (at your option) any later version. 12 | # 13 | # This program is distributed in the hope that it will be useful, 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 | # GNU General Public License for more details. 17 | # 18 | # You should have received a copy of the GNU General Public License 19 | # along with this program; if not, write to the Free Software Foundation, 20 | # Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 21 | # 22 | # ##### END GPL LICENSE BLOCK ##### 23 | ############################################################################################## 24 | bl_info = { 25 | "name": "BDENTAL ALIGN", 26 | "author": "Essaid Issam Dakir DMD", 27 | "version": (1, 0, 0), 28 | "blender": (3, 0, 0), 29 | "location": "3D View -> UI SIDE PANEL ", 30 | "description": "Align Tools for Digital Dentistry", 31 | "warning": "", 32 | "doc_url": "", 33 | "tracker_url": "", 34 | "category": "Dental", 35 | } 36 | ############################################################################################# 37 | # IMPORTS : 38 | ############################################################################################# 39 | # Python imports : 40 | import sys, bpy 41 | 42 | # activate unicode characters in windows CLI : 43 | if sys.platform == "win32": 44 | sys.stdout.reconfigure(encoding="cp65001") 45 | 46 | ############################################################# 47 | # Addon modules imports : 48 | from . import BDENTAL_ALIGN_Props, BDENTAL_ALIGN_Panel 49 | from .Operators import BDENTAL_ALIGN_Operators 50 | 51 | ############################################################################################ 52 | # Registration : 53 | ############################################################################################ 54 | addon_modules = [ 55 | BDENTAL_ALIGN_Props, 56 | BDENTAL_ALIGN_Panel, 57 | BDENTAL_ALIGN_Operators, 58 | ] 59 | init_classes = [] 60 | 61 | 62 | def register(): 63 | 64 | for module in addon_modules: 65 | module.register() 66 | for cl in init_classes: 67 | bpy.utils.register_class(cl) 68 | 69 | 70 | def unregister(): 71 | for cl in init_classes: 72 | bpy.utils.unregister_class(cl) 73 | for module in reversed(addon_modules): 74 | module.unregister() 75 | 76 | 77 | if __name__ == "__main__": 78 | register() 79 | -------------------------------------------------------------------------------- /BDENTAL_ALIGN_Panel.py: -------------------------------------------------------------------------------- 1 | import bpy 2 | 3 | # Selected icons : 4 | red_icon = "COLORSET_01_VEC" 5 | orange_icon = "COLORSET_02_VEC" 6 | green_icon = "COLORSET_03_VEC" 7 | blue_icon = "COLORSET_04_VEC" 8 | violet_icon = "COLORSET_06_VEC" 9 | yellow_icon = "COLORSET_09_VEC" 10 | yellow_point = "KEYTYPE_KEYFRAME_VEC" 11 | blue_point = "KEYTYPE_BREAKDOWN_VEC" 12 | 13 | #################################################################### 14 | class BDENTAL_ALIGN_PT_Main(bpy.types.Panel): 15 | """ BDENTAL ALIGN Main Panel""" 16 | 17 | bl_idname = "BDENTAL_ALIGN_PT_Main" 18 | bl_space_type = "VIEW_3D" 19 | bl_region_type = "UI" # blender 2.7 and lower = TOOLS 20 | bl_category = "BDENT-ALIGN" 21 | bl_label = "BDENTAL ALIGN" 22 | # bl_options = {"DEFAULT_CLOSED"} 23 | 24 | def draw(self, context): 25 | BDENTAL_ALIGN_Props = context.scene.BDENTAL_ALIGN_Props 26 | AlignModalState = BDENTAL_ALIGN_Props.AlignModalState 27 | layout = self.layout 28 | split = layout.split(factor=2 / 3, align=False) 29 | col = split.column() 30 | col.label(text="Use ICP alignement :") 31 | col = split.column() 32 | col.prop(BDENTAL_ALIGN_Props,'useICP',text="") 33 | 34 | split = layout.split(factor=2 / 3, align=False) 35 | col = split.column() 36 | row = col.row() 37 | row.operator("bdental_align.alignpoints", text="ALIGN") 38 | col = split.column() 39 | row = col.row() 40 | row.alert = True 41 | row.operator("bdental_align.alignpointsinfo", text="INFO", icon="INFO") 42 | 43 | 44 | Condition_1 = len(bpy.context.selected_objects) != 2 45 | Condition_2 = bpy.context.selected_objects and not bpy.context.active_object 46 | Condition_3 = bpy.context.selected_objects and not ( 47 | bpy.context.active_object in bpy.context.selected_objects 48 | ) 49 | Condition_4 = not bpy.context.active_object in bpy.context.visible_objects 50 | 51 | Conditions = Condition_1 or Condition_2 or Condition_3 or Condition_4 52 | if AlignModalState: 53 | self.AlignLabels = "MODAL" 54 | else: 55 | if Conditions: 56 | self.AlignLabels = "INVALID" 57 | 58 | else: 59 | self.AlignLabels = "READY" 60 | 61 | ######################################### 62 | 63 | if self.AlignLabels == "READY": 64 | TargetObjectName = context.active_object.name 65 | SourceObjectName = [ 66 | obj 67 | for obj in bpy.context.selected_objects 68 | if not obj is bpy.context.active_object 69 | ][0].name 70 | 71 | box = layout.box() 72 | 73 | row = box.row() 74 | row.alert = True 75 | row.alignment = "CENTER" 76 | row.label(text="READY FOR ALIGNEMENT.") 77 | 78 | row = box.row() 79 | row.alignment = "CENTER" 80 | row.label(text=f"{SourceObjectName} will be aligned to, {TargetObjectName}") 81 | 82 | if self.AlignLabels == "INVALID" or self.AlignLabels == "NOTREADY": 83 | box = layout.box() 84 | row = box.row(align=True) 85 | row.alert = True 86 | row.alignment = "CENTER" 87 | row.label(text="STANDBY MODE", icon="ERROR") 88 | 89 | if self.AlignLabels == "MODAL": 90 | box = layout.box() 91 | row = box.row() 92 | row.alert = True 93 | row.alignment = "CENTER" 94 | row.label(text="WAITING FOR ALIGNEMENT...") 95 | 96 | 97 | ################################################################################################# 98 | # Registration : 99 | ################################################################################################# 100 | 101 | classes = [ 102 | BDENTAL_ALIGN_PT_Main, 103 | ] 104 | 105 | 106 | def register(): 107 | 108 | for cls in classes: 109 | bpy.utils.register_class(cls) 110 | 111 | 112 | def unregister(): 113 | 114 | for cls in reversed(classes): 115 | bpy.utils.unregister_class(cls) 116 | 117 | 118 | ########################################################## 119 | -------------------------------------------------------------------------------- /Operators/BDENTAL_ALIGN_Utils.py: -------------------------------------------------------------------------------- 1 | from time import perf_counter as Tcounter 2 | 3 | import bpy 4 | import mathutils 5 | from mathutils import Matrix, Vector, Euler, kdtree 6 | 7 | from math import degrees, radians, pi, ceil, floor 8 | import numpy as np 9 | #################################################### 10 | def ShowMessageBox(message=[], title="INFO", icon="INFO"): 11 | def draw(self, context): 12 | for txtLine in message: 13 | self.layout.label(text=txtLine) 14 | 15 | bpy.context.window_manager.popup_menu(draw, title=title, icon=icon) 16 | 17 | def KdIcpPairs(SourceVcoList, TargetVcolist, VertsLimite=5000): 18 | start = Tcounter() 19 | # print("KD processing start...") 20 | SourceKdList, TargetKdList, DistList, SourceIndexList, TargetIndexList = ( 21 | [], 22 | [], 23 | [], 24 | [], 25 | [], 26 | ) 27 | size = len(TargetVcolist) 28 | kd = kdtree.KDTree(size) 29 | 30 | for i, Vco in enumerate(TargetVcolist): 31 | kd.insert(Vco, i) 32 | 33 | kd.balance() 34 | 35 | n = len(SourceVcoList) 36 | if n > VertsLimite: 37 | step = ceil(n / VertsLimite) 38 | SourceVcoList = SourceVcoList[::step] 39 | 40 | for SourceIndex, Sco in enumerate(SourceVcoList): 41 | 42 | Tco, TargetIndex, dist = kd.find(Sco) 43 | if Tco: 44 | if not TargetIndex in TargetIndexList: 45 | TargetIndexList.append(TargetIndex) 46 | SourceIndexList.append(SourceIndex) 47 | TargetKdList.append(Tco) 48 | SourceKdList.append(Sco) 49 | DistList.append(dist) 50 | finish = Tcounter() 51 | # print(f"KD total iterations : {len(SourceVcoList)}") 52 | # print(f"KD Index List : {len(IndexList)}") 53 | 54 | # print(f"KD finshed in {finish-start} secondes") 55 | return SourceKdList, TargetKdList, DistList, SourceIndexList, TargetIndexList 56 | 57 | 58 | def KdIcpPairsToTransformMatrix(TargetKdList, SourceKdList): 59 | # make 2 arrays of coordinates : 60 | TargetArray = np.array(TargetKdList, dtype=np.float64).T 61 | SourceArray = np.array(SourceKdList, dtype=np.float64).T 62 | 63 | # Calculate centers of Target and Source RefPoints : 64 | TargetCenter, SourceCenter = np.mean(TargetArray, axis=1), np.mean( 65 | SourceArray, axis=1 66 | ) 67 | 68 | # Calculate Translation : 69 | ################################### 70 | 71 | # TransMatrix_1 : Matrix(4x4) will translate center of SourceRefPoints... 72 | # to origine (0,0,0) location. 73 | TransMatrix_1 = Matrix.Translation(Vector(-SourceCenter)) 74 | 75 | # TransMatrix_2 : Matrix(4x4) will translate center of SourceRefPoints... 76 | # to the center of TargetRefPoints location. 77 | TransMatrix_2 = Matrix.Translation(Vector(TargetCenter)) 78 | 79 | # Calculate Rotation : 80 | ################################### 81 | 82 | # Home Arrays will get the Centered Target and Source RefPoints around origin (0,0,0). 83 | HomeTargetArray, HomeSourceArray = ( 84 | TargetArray - TargetCenter.reshape(3, 1), 85 | SourceArray - SourceCenter.reshape(3, 1), 86 | ) 87 | # Rigid transformation via SVD of covariance matrix : 88 | U, S, Vt = np.linalg.svd(np.dot(HomeTargetArray, HomeSourceArray.T)) 89 | 90 | # rotation matrix from SVD orthonormal bases : 91 | R = np.dot(U, Vt) 92 | if np.linalg.det(R) < 0.0: 93 | Vt[2, :] *= -1 94 | R = np.dot(U, Vt) 95 | print(" Reflection fixed ") 96 | 97 | RotationMatrix = Matrix(R).to_4x4() 98 | TransformMatrix = TransMatrix_2 @ RotationMatrix @ TransMatrix_1 99 | 100 | return TransformMatrix 101 | def CtxOverride(context): 102 | Override = context.copy() 103 | area3D = [area for area in context.screen.areas if area.type == "VIEW_3D"][0] 104 | space3D = [space for space in area3D.spaces if space.type == "VIEW_3D"][0] 105 | region3D = [reg for reg in area3D.regions if reg.type == "WINDOW"][0] 106 | Override["area"], Override["space_data"], Override["region"] = ( 107 | area3D, 108 | space3D, 109 | region3D, 110 | ) 111 | return Override, area3D, space3D 112 | 113 | def AddRefPoint(name, color, CollName=None): 114 | 115 | loc = bpy.context.scene.cursor.location 116 | bpy.ops.mesh.primitive_uv_sphere_add(radius=1.2, location=loc) 117 | RefP = bpy.context.object 118 | RefP.name = name 119 | RefP.data.name = name + "_mesh" 120 | if CollName: 121 | MoveToCollection(RefP, CollName) 122 | if name.startswith("B"): 123 | matName = "TargetRefMat" 124 | if name.startswith("M"): 125 | matName = "SourceRefMat" 126 | 127 | mat = bpy.data.materials.get(matName) or bpy.data.materials.new(matName) 128 | mat.use_nodes = False 129 | mat.diffuse_color = color 130 | RefP.active_material = mat 131 | RefP.show_name = True 132 | return RefP 133 | 134 | def MoveToCollection(obj, CollName): 135 | 136 | OldColl = obj.users_collection # list of all collection the obj is in 137 | NewColl = bpy.data.collections.get(CollName) 138 | if not NewColl: 139 | NewColl = bpy.data.collections.new(CollName) 140 | bpy.context.scene.collection.children.link(NewColl) 141 | if not obj in NewColl.objects[:]: 142 | NewColl.objects.link(obj) # link obj to scene 143 | if OldColl: 144 | for Coll in OldColl: # unlink from all precedent obj collections 145 | if Coll is not NewColl: 146 | Coll.objects.unlink(obj) 147 | 148 | def RefPointsToTransformMatrix(TargetRefPoints, SourceRefPoints): 149 | # TransformMatrix = Matrix() # identity Matrix (4x4) 150 | 151 | # make 2 arrays of coordinates : 152 | TargetArray = np.array( 153 | [obj.location for obj in TargetRefPoints], dtype=np.float64 154 | ).T 155 | SourceArray = np.array( 156 | [obj.location for obj in SourceRefPoints], dtype=np.float64 157 | ).T 158 | 159 | # Calculate centers of Target and Source RefPoints : 160 | TargetCenter, SourceCenter = np.mean(TargetArray, axis=1), np.mean( 161 | SourceArray, axis=1 162 | ) 163 | 164 | # Calculate Translation : 165 | ################################### 166 | 167 | # TransMatrix_1 : Matrix(4x4) will translate center of SourceRefPoints... 168 | # to origine (0,0,0) location. 169 | TransMatrix_1 = Matrix.Translation(Vector(-SourceCenter)) 170 | 171 | # TransMatrix_2 : Matrix(4x4) will translate center of SourceRefPoints... 172 | # to the center of TargetRefPoints location. 173 | TransMatrix_2 = Matrix.Translation(Vector(TargetCenter)) 174 | 175 | # Calculate Rotation : 176 | ################################### 177 | 178 | # Home Arrays will get the Centered Target and Source RefPoints around origin (0,0,0). 179 | HomeTargetArray, HomeSourceArray = ( 180 | TargetArray - TargetCenter.reshape(3, 1), 181 | SourceArray - SourceCenter.reshape(3, 1), 182 | ) 183 | # Rigid transformation via SVD of covariance matrix : 184 | U, S, Vt = np.linalg.svd(np.dot(HomeTargetArray, HomeSourceArray.T)) 185 | 186 | # rotation matrix from SVD orthonormal bases and check, 187 | # if it is a Reflection matrix : 188 | R = np.dot(U, Vt) 189 | if np.linalg.det(R) < 0.0: 190 | Vt[2, :] *= -1 191 | R = np.dot(U, Vt) 192 | print(" Reflection matrix fixed ") 193 | 194 | RotationMatrix = Matrix(R).to_4x4() 195 | TransformMatrix = TransMatrix_2 @ RotationMatrix @ TransMatrix_1 196 | 197 | return TransformMatrix 198 | 199 | def KdRadiusVerts(obj, RefCo, radius): 200 | 201 | RadiusVertsIds = [] 202 | RadiusVertsCo = [] 203 | RadiusVertsDistance = [] 204 | verts = obj.data.vertices 205 | Vcolist = [obj.matrix_world @ v.co for v in verts] 206 | size = len(Vcolist) 207 | kd = kdtree.KDTree(size) 208 | 209 | for i, Vco in enumerate(Vcolist): 210 | kd.insert(Vco, i) 211 | 212 | kd.balance() 213 | 214 | for (co, index, dist) in kd.find_range(RefCo, radius): 215 | 216 | RadiusVertsIds.append(index) 217 | RadiusVertsCo.append(co) 218 | RadiusVertsDistance.append(dist) 219 | 220 | return RadiusVertsIds, RadiusVertsCo, RadiusVertsDistance 221 | 222 | def VidDictFromPoints(TargetRefPoints, SourceRefPoints, TargetObj, SourceObj, radius): 223 | IcpVidDict = {TargetObj: [], SourceObj: []} 224 | 225 | for obj in [TargetObj, SourceObj]: 226 | if obj == TargetObj: 227 | for RefTargetP in TargetRefPoints: 228 | RefCo = RefTargetP.location 229 | RadiusVertsIds, RadiusVertsCo, RadiusVertsDistance = KdRadiusVerts( 230 | TargetObj, RefCo, radius 231 | ) 232 | IcpVidDict[TargetObj].extend(RadiusVertsIds) 233 | for idx in RadiusVertsIds: 234 | obj.data.vertices[idx].select = True 235 | if obj == SourceObj: 236 | for RefSourceP in SourceRefPoints: 237 | RefCo = RefSourceP.location 238 | RadiusVertsIds, RadiusVertsCo, RadiusVertsDistance = KdRadiusVerts( 239 | SourceObj, RefCo, radius 240 | ) 241 | IcpVidDict[SourceObj].extend(RadiusVertsIds) 242 | for idx in RadiusVertsIds: 243 | obj.data.vertices[idx].select = True 244 | 245 | bpy.ops.object.select_all(action="DESELECT") 246 | for obj in [TargetObj, SourceObj]: 247 | obj.select_set(True) 248 | bpy.context.view_layer.objects.active = TargetObj 249 | 250 | return IcpVidDict 251 | 252 | def CursorToVoxelPoint(Preffix, CursorMove=False): 253 | try : 254 | import SimpleITK as sitk 255 | except ImportError as Er : 256 | print('SimpleITK is not installed :\n',Er) 257 | message = ['Voxel alignement mode need SimpleITK to be installed', 258 | 'ALIGN operation cancelled'] 259 | ShowMessageBox(message=message, icon="COLORSET_02_VEC") 260 | return None 261 | 262 | VoxelPointCo = 0 263 | 264 | BDENTAL_Props = bpy.context.scene.BDENTAL_Props 265 | DcmInfoDict = eval(BDENTAL_Props.DcmInfo) 266 | DcmInfo = DcmInfoDict[Preffix] 267 | ImageData = bpy.path.abspath(DcmInfo["Nrrd255Path"]) 268 | Treshold=BDENTAL_Props.Treshold 269 | Wmin, Wmax = DcmInfo['Wmin'], DcmInfo['Wmax'] 270 | TransformMatrix = DcmInfo["TransformMatrix"] 271 | VtkTransform_4x4 = DcmInfo["VtkTransform_4x4"] 272 | 273 | Cursor = bpy.context.scene.cursor 274 | CursorInitMtx = Cursor.matrix.copy() 275 | 276 | 277 | # Get ImageData Infos : 278 | Image3D_255 = sitk.ReadImage(ImageData) 279 | Sp = Spacing = Image3D_255.GetSpacing() 280 | Sz = Size = Image3D_255.GetSize() 281 | Ortho_Origin = -0.5 * np.array(Sp) * (np.array(Sz) - np.array((1, 1, 1))) 282 | Image3D_255.SetOrigin(Ortho_Origin) 283 | Image3D_255.SetDirection(np.identity(3).flatten()) 284 | 285 | 286 | #Cursor shift : 287 | Cursor_Z = Vector((CursorInitMtx[0][2], CursorInitMtx[1][2], CursorInitMtx[2][2])) 288 | CT = CursorTrans = -1*(Sz[2]-1)*Sp[2] * Cursor_Z 289 | CursorTransMatrix = mathutils.Matrix( 290 | ( 291 | (1.0, 0.0, 0.0, CT[0]), 292 | (0.0, 1.0, 0.0, CT[1]), 293 | (0.0, 0.0, 1.0, CT[2]), 294 | (0.0, 0.0, 0.0, 1.0), 295 | ) 296 | ) 297 | 298 | 299 | # Output Parameters : 300 | Out_Origin = [Ortho_Origin[0], Ortho_Origin[1], 0] 301 | Out_Direction = Vector(np.identity(3).flatten()) 302 | Out_Size = Sz 303 | Out_Spacing = Sp 304 | 305 | # Get Plane Orientation and location : 306 | Matrix = TransformMatrix.inverted() @ CursorTransMatrix @ CursorInitMtx 307 | Rot = Matrix.to_euler() 308 | Rvec = (Rot.x, Rot.y, Rot.z) 309 | Tvec = Matrix.translation 310 | 311 | # Euler3DTransform : 312 | Euler3D = sitk.Euler3DTransform() 313 | Euler3D.SetCenter((0, 0, 0)) 314 | Euler3D.SetRotation(Rvec[0], Rvec[1], Rvec[2]) 315 | Euler3D.SetTranslation(Tvec) 316 | Euler3D.ComputeZYXOn() 317 | 318 | ######################################### 319 | 320 | Image3D = sitk.Resample( 321 | Image3D_255, 322 | Out_Size, 323 | Euler3D, 324 | sitk.sitkLinear, 325 | Out_Origin, 326 | Out_Spacing, 327 | Out_Direction, 328 | 0, 329 | ) 330 | 331 | 332 | 333 | # # Write Image : 334 | # Array = sitk.GetArrayFromImage(Image3D[:,:,Sz[2]-1])#Sz[2]-1 335 | # Flipped_Array = np.flipud(Array.reshape(Array.shape[0], Array.shape[1])) 336 | # cv2.imwrite(ImagePath, Flipped_Array) 337 | 338 | ImgArray = sitk.GetArrayFromImage(Image3D) 339 | Treshold255 = int(((Treshold -Wmin) / (Wmax-Wmin)) * 255) 340 | 341 | RayPixels = ImgArray[:,int(Sz[1]/2),int(Sz[0]/2)] 342 | ReversedRayPixels = list(reversed(list(RayPixels))) 343 | 344 | for i,P in enumerate(ReversedRayPixels) : 345 | if P >= Treshold255: 346 | VoxelPointCo = Cursor.location - i*Sp[2]*Cursor_Z 347 | break 348 | 349 | if CursorMove and VoxelPointCo : 350 | bpy.context.scene.cursor.location = VoxelPointCo 351 | ############################################# 352 | 353 | return(VoxelPointCo) 354 | -------------------------------------------------------------------------------- /Operators/BDENTAL_ALIGN_Operators.py: -------------------------------------------------------------------------------- 1 | from time import perf_counter as Tcounter 2 | # Blender Imports : 3 | import bpy 4 | from mathutils import Matrix, Vector, Euler, kdtree 5 | # Global Variables : 6 | from .BDENTAL_ALIGN_Utils import * 7 | 8 | ############################################################################ 9 | class BDENTAL_ALIGN_OT_AlignPoints(bpy.types.Operator): 10 | """ Add Align Refference points """ 11 | 12 | bl_idname = "bdental_align.alignpoints" 13 | bl_label = "ALIGN POINTS" 14 | bl_options = {"REGISTER", "UNDO"} 15 | 16 | TargetColor = (0, 1, 0, 1) # Green 17 | SourceColor = (1, 0, 0, 1) # Red 18 | CollName = "ALIGN POINTS" 19 | TargetChar = "B" 20 | SourceChar = "A" 21 | 22 | def IcpPipline( 23 | self, 24 | SourceObj, 25 | TargetObj, 26 | SourceVidList, 27 | TargetVidList, 28 | VertsLimite, 29 | Iterations, 30 | Precision, 31 | ): 32 | 33 | MaxDist = 0.0 34 | for i in range(Iterations): 35 | 36 | SourceVcoList = [ 37 | SourceObj.matrix_world @ SourceObj.data.vertices[idx].co 38 | for idx in SourceVidList 39 | ] 40 | TargetVcoList = [ 41 | TargetObj.matrix_world @ TargetObj.data.vertices[idx].co 42 | for idx in TargetVidList 43 | ] 44 | 45 | ( 46 | SourceKdList, 47 | TargetKdList, 48 | DistList, 49 | SourceIndexList, 50 | TargetIndexList, 51 | ) = KdIcpPairs(SourceVcoList, TargetVcoList, VertsLimite=VertsLimite) 52 | 53 | TransformMatrix = KdIcpPairsToTransformMatrix( 54 | TargetKdList=TargetKdList, SourceKdList=SourceKdList 55 | ) 56 | SourceObj.matrix_world = TransformMatrix @ SourceObj.matrix_world 57 | for RefP in self.SourceRefPoints: 58 | RefP.matrix_world = TransformMatrix @ RefP.matrix_world 59 | # Update scene : 60 | SourceObj.update_tag() 61 | bpy.context.view_layer.update() 62 | 63 | SourceObj = self.SourceObject 64 | 65 | SourceVcoList = [ 66 | SourceObj.matrix_world @ SourceObj.data.vertices[idx].co 67 | for idx in SourceVidList 68 | ] 69 | _, _, DistList, _, _ = KdIcpPairs( 70 | SourceVcoList, TargetVcoList, VertsLimite=VertsLimite 71 | ) 72 | MaxDist = max(DistList) 73 | Override, area3D, space3D = CtxOverride(bpy.context) 74 | bpy.ops.wm.redraw_timer(Override, type="DRAW_WIN_SWAP", iterations=1) 75 | ####################################################### 76 | if MaxDist <= Precision: 77 | self.ResultMessage = [ 78 | "Allignement Done !", 79 | f"Max Distance < or = {Precision} mm", 80 | ] 81 | print(f"Number of iterations = {i}") 82 | print(f"Precision of {Precision} mm reached.") 83 | print(f"Max Distance = {round(MaxDist, 6)} mm") 84 | break 85 | 86 | if MaxDist > Precision: 87 | print(f"Number of iterations = {i}") 88 | print(f"Max Distance = {round(MaxDist, 6)} mm") 89 | self.ResultMessage = [ 90 | "Allignement Done !", 91 | f"Max Distance = {round(MaxDist, 6)} mm", 92 | ] 93 | 94 | def modal(self, context, event): 95 | 96 | ############################################ 97 | if not event.type in { 98 | self.TargetChar, 99 | self.SourceChar, 100 | "DEL", 101 | "RET", 102 | "ESC", 103 | }: 104 | # allow navigation 105 | 106 | return {"PASS_THROUGH"} 107 | ######################################### 108 | if event.type == self.TargetChar: 109 | # Add Target Refference point : 110 | if event.value == ("PRESS"): 111 | if self.TargetVoxelMode: 112 | Preffix = self.TargetObject.name.split('_')[0] 113 | CursorToVoxelPoint(Preffix=Preffix, CursorMove=True) 114 | 115 | color = self.TargetColor 116 | CollName = self.CollName 117 | self.TargetCounter += 1 118 | name = f"B{self.TargetCounter}" 119 | RefP = AddRefPoint(name, color, CollName) 120 | self.TargetRefPoints.append(RefP) 121 | self.TotalRefPoints.append(RefP) 122 | bpy.ops.object.select_all(action="DESELECT") 123 | 124 | ######################################### 125 | if event.type == self.SourceChar: 126 | # Add Source Refference point : 127 | if event.value == ("PRESS"): 128 | if self.SourceVoxelMode: 129 | Preffix = self.SourceObject.name.split('_')[0] 130 | CursorToVoxelPoint(Preffix=Preffix, CursorMove=True) 131 | 132 | color = self.SourceColor 133 | CollName = self.CollName 134 | self.SourceCounter += 1 135 | name = f"M{self.SourceCounter}" 136 | RefP = AddRefPoint(name, color, CollName) 137 | self.SourceRefPoints.append(RefP) 138 | self.TotalRefPoints.append(RefP) 139 | bpy.ops.object.select_all(action="DESELECT") 140 | 141 | ########################################### 142 | elif event.type == ("DEL"): 143 | if event.value == ("PRESS"): 144 | if self.TotalRefPoints: 145 | obj = self.TotalRefPoints.pop() 146 | name = obj.name 147 | if name.startswith("B"): 148 | self.TargetCounter -= 1 149 | self.TargetRefPoints.pop() 150 | if name.startswith("M"): 151 | self.SourceCounter -= 1 152 | self.SourceRefPoints.pop() 153 | bpy.data.objects.remove(obj) 154 | bpy.ops.object.select_all(action="DESELECT") 155 | 156 | ########################################### 157 | elif event.type == "RET": 158 | 159 | BDENTAL_ALIGN_Props = bpy.context.scene.BDENTAL_ALIGN_Props 160 | 161 | if event.value == ("PRESS"): 162 | 163 | start = Tcounter() 164 | 165 | TargetObj = self.TargetObject 166 | SourceObj = self.SourceObject 167 | 168 | ############################################# 169 | condition = ( 170 | len(self.TargetRefPoints) == len(self.SourceRefPoints) 171 | and len(self.TargetRefPoints) >= 3 172 | ) 173 | if not condition: 174 | message = [ 175 | " Please check the following :", 176 | " - The number of Base Refference points and,", 177 | " Align Refference points should match!", 178 | " - The number of Base Refference points ,", 179 | " and Align Refference points,", 180 | " should be superior or equal to 3", 181 | " <>", 182 | ] 183 | ShowMessageBox(message=message, icon="COLORSET_02_VEC") 184 | 185 | else: 186 | 187 | TransformMatrix = RefPointsToTransformMatrix( 188 | self.TargetRefPoints, self.SourceRefPoints 189 | ) 190 | 191 | SourceObj.matrix_world = TransformMatrix @ SourceObj.matrix_world 192 | for SourceRefP in self.SourceRefPoints: 193 | SourceRefP.matrix_world = ( 194 | TransformMatrix @ SourceRefP.matrix_world 195 | ) 196 | 197 | for i, SP in enumerate(self.SourceRefPoints): 198 | TP = self.TargetRefPoints[i] 199 | MidLoc = (SP.location + TP.location) / 2 200 | SP.location = TP.location = MidLoc 201 | 202 | # Update scene : 203 | context.view_layer.update() 204 | for obj in [TargetObj, SourceObj]: 205 | obj.update_tag() 206 | bpy.ops.wm.redraw_timer( 207 | self.FullOverride, type="DRAW_WIN_SWAP", iterations=1 208 | ) 209 | 210 | self.ResultMessage = [] 211 | if not self.TargetVoxelMode and not self.SourceVoxelMode and self.useICP : 212 | ######################################################### 213 | # ICP alignement : 214 | print("ICP Align processing...") 215 | IcpVidDict = VidDictFromPoints( 216 | TargetRefPoints=self.TargetRefPoints, 217 | SourceRefPoints=self.SourceRefPoints, 218 | TargetObj=TargetObj, 219 | SourceObj=SourceObj, 220 | radius=3, 221 | ) 222 | BDENTAL_ALIGN_Props.IcpVidDict = str(IcpVidDict) 223 | 224 | SourceVidList, TargetVidList = ( 225 | IcpVidDict[SourceObj], 226 | IcpVidDict[TargetObj], 227 | ) 228 | 229 | self.IcpPipline( 230 | SourceObj=SourceObj, 231 | TargetObj=TargetObj, 232 | SourceVidList=SourceVidList, 233 | TargetVidList=TargetVidList, 234 | VertsLimite=10000, 235 | Iterations=30, 236 | Precision=0.0001, 237 | ) 238 | 239 | ########################################################## 240 | self.FullSpace3D.overlay.show_outline_selected = True 241 | self.FullSpace3D.overlay.show_object_origins = True 242 | self.FullSpace3D.overlay.show_annotation = True 243 | self.FullSpace3D.overlay.show_text = True 244 | self.FullSpace3D.overlay.show_extras = True 245 | self.FullSpace3D.overlay.show_floor = True 246 | self.FullSpace3D.overlay.show_axis_x = True 247 | self.FullSpace3D.overlay.show_axis_y = True 248 | ########################################################### 249 | for Name in self.visibleObjects: 250 | obj = bpy.data.objects.get(Name) 251 | if obj: 252 | obj.hide_set(False) 253 | 254 | bpy.ops.object.select_all(self.FullOverride, action="DESELECT") 255 | bpy.ops.wm.tool_set_by_id(self.FullOverride, name="builtin.select") 256 | bpy.context.scene.tool_settings.use_snap = False 257 | bpy.context.scene.cursor.location = (0, 0, 0) 258 | bpy.ops.screen.region_toggle(self.FullOverride, region_type="UI") 259 | 260 | if self.Solid: 261 | self.FullSpace3D.shading.background_color = ( 262 | self.background_color 263 | ) 264 | self.FullSpace3D.shading.background_type = self.background_type 265 | 266 | TargetObj = self.TargetObject 267 | SourceObj = self.SourceObject 268 | 269 | if self.TotalRefPoints: 270 | for RefP in self.TotalRefPoints: 271 | bpy.data.objects.remove(RefP) 272 | 273 | AlignColl = bpy.data.collections.get("ALIGN POINTS") 274 | if AlignColl: 275 | bpy.data.collections.remove(AlignColl) 276 | 277 | BDENTAL_ALIGN_Props = context.scene.BDENTAL_ALIGN_Props 278 | BDENTAL_ALIGN_Props.AlignModalState = False 279 | 280 | bpy.ops.screen.screen_full_area(self.FullOverride) 281 | 282 | if self.ResultMessage: 283 | ShowMessageBox( 284 | message=self.ResultMessage, icon="COLORSET_03_VEC" 285 | ) 286 | ########################################################## 287 | 288 | finish = Tcounter() 289 | print(f"Alignement finshed in {finish-start} secondes") 290 | 291 | return {"FINISHED"} 292 | 293 | ########################################### 294 | elif event.type == ("ESC"): 295 | 296 | if event.value == ("PRESS"): 297 | 298 | ########################################################## 299 | self.FullSpace3D.overlay.show_outline_selected = True 300 | self.FullSpace3D.overlay.show_object_origins = True 301 | self.FullSpace3D.overlay.show_annotation = True 302 | self.FullSpace3D.overlay.show_text = True 303 | self.FullSpace3D.overlay.show_extras = True 304 | self.FullSpace3D.overlay.show_floor = True 305 | self.FullSpace3D.overlay.show_axis_x = True 306 | self.FullSpace3D.overlay.show_axis_y = True 307 | ########################################################### 308 | for Name in self.visibleObjects: 309 | obj = bpy.data.objects.get(Name) 310 | if obj: 311 | obj.hide_set(False) 312 | 313 | bpy.ops.object.select_all(self.FullOverride, action="DESELECT") 314 | bpy.ops.wm.tool_set_by_id(self.FullOverride, name="builtin.select") 315 | bpy.context.scene.tool_settings.use_snap = False 316 | bpy.context.scene.cursor.location = (0, 0, 0) 317 | bpy.ops.screen.region_toggle(self.FullOverride, region_type="UI") 318 | 319 | if self.Solid: 320 | self.FullSpace3D.shading.background_color = self.background_color 321 | self.FullSpace3D.shading.background_type = self.background_type 322 | 323 | TargetObj = self.TargetObject 324 | SourceObj = self.SourceObject 325 | 326 | if self.TotalRefPoints: 327 | for RefP in self.TotalRefPoints: 328 | bpy.data.objects.remove(RefP) 329 | 330 | AlignColl = bpy.data.collections.get("ALIGN POINTS") 331 | if AlignColl: 332 | bpy.data.collections.remove(AlignColl) 333 | 334 | BDENTAL_ALIGN_Props = context.scene.BDENTAL_ALIGN_Props 335 | BDENTAL_ALIGN_Props.AlignModalState = False 336 | 337 | bpy.ops.screen.screen_full_area(self.FullOverride) 338 | 339 | message = [ 340 | " The Align Operation was Cancelled!", 341 | ] 342 | 343 | ShowMessageBox(message=message, icon="COLORSET_03_VEC") 344 | 345 | return {"CANCELLED"} 346 | 347 | return {"RUNNING_MODAL"} 348 | 349 | def invoke(self, context, event): 350 | Condition_1 = len(bpy.context.selected_objects) != 2 351 | Condition_2 = bpy.context.selected_objects and not bpy.context.active_object 352 | Condition_3 = bpy.context.selected_objects and not ( 353 | bpy.context.active_object in bpy.context.selected_objects 354 | ) 355 | 356 | if Condition_1 or Condition_2 or Condition_3: 357 | 358 | message = [ 359 | "Selection is invalid !", 360 | "Please Deselect all objects,", 361 | "Select the Object to Align and ,", 362 | " the Base Object.", 363 | "Click info button for more info.", 364 | ] 365 | ShowMessageBox(message=message, icon="COLORSET_02_VEC") 366 | 367 | return {"CANCELLED"} 368 | 369 | else: 370 | 371 | if context.space_data.type == "VIEW_3D": 372 | BDENTAL_ALIGN_Props = context.scene.BDENTAL_ALIGN_Props 373 | BDENTAL_ALIGN_Props.AlignModalState = True 374 | # Prepare scene : 375 | ########################################################## 376 | 377 | bpy.context.space_data.overlay.show_outline_selected = False 378 | bpy.context.space_data.overlay.show_object_origins = False 379 | bpy.context.space_data.overlay.show_annotation = False 380 | bpy.context.space_data.overlay.show_text = False 381 | bpy.context.space_data.overlay.show_extras = False 382 | bpy.context.space_data.overlay.show_floor = False 383 | bpy.context.space_data.overlay.show_axis_x = False 384 | bpy.context.space_data.overlay.show_axis_y = False 385 | bpy.context.scene.tool_settings.use_snap = True 386 | bpy.context.scene.tool_settings.snap_elements = {"FACE"} 387 | bpy.context.scene.tool_settings.transform_pivot_point = ( 388 | "INDIVIDUAL_ORIGINS" 389 | ) 390 | bpy.ops.wm.tool_set_by_id(name="builtin.cursor") 391 | 392 | ########################################################### 393 | self.useICP = BDENTAL_ALIGN_Props.useICP 394 | print(self.useICP) 395 | 396 | self.TargetObject = bpy.context.active_object 397 | self.SourceObject = [ 398 | obj 399 | for obj in bpy.context.selected_objects 400 | if not obj is self.TargetObject 401 | ][0] 402 | 403 | VisObj = bpy.context.visible_objects 404 | self.visibleObjects = [obj.name for obj in VisObj] 405 | for obj in VisObj: 406 | if not obj in [self.TargetObject, self.SourceObject]: 407 | obj.hide_set(True) 408 | 409 | self.Solid = False 410 | if bpy.context.space_data.shading.type == "SOLID": 411 | self.Solid = True 412 | self.background_type = ( 413 | bpy.context.space_data.shading.background_type 414 | ) 415 | bpy.context.space_data.shading.background_type = "VIEWPORT" 416 | self.background_color = tuple( 417 | bpy.context.space_data.shading.background_color 418 | ) 419 | bpy.context.space_data.shading.background_color = (0.0, 0.0, 0.0) 420 | 421 | self.TargetVoxelMode = self.TargetObject.name.startswith( 422 | "BD" 423 | ) and self.TargetObject.name.endswith("_CTVolume") 424 | self.SourceVoxelMode = self.SourceObject.name.startswith( 425 | "BD" 426 | ) and self.SourceObject.name.endswith("_CTVolume") 427 | self.TargetRefPoints = [] 428 | self.SourceRefPoints = [] 429 | self.TotalRefPoints = [] 430 | 431 | self.TargetCounter = 0 432 | self.SourceCounter = 0 433 | 434 | bpy.ops.screen.screen_full_area() 435 | self.FullOverride, self.FullArea3D, self.FullSpace3D = CtxOverride( 436 | context 437 | ) 438 | 439 | context.window_manager.modal_handler_add(self) 440 | 441 | return {"RUNNING_MODAL"} 442 | 443 | else: 444 | 445 | self.report({"WARNING"}, "Active space must be a View3d") 446 | 447 | return {"CANCELLED"} 448 | 449 | 450 | ############################################################################ 451 | class BDENTAL_ALIGN_OT_AlignPointsInfo(bpy.types.Operator): 452 | """ Add Align Refference points """ 453 | 454 | bl_idname = "bdental_align.alignpointsinfo" 455 | bl_label = "INFO" 456 | bl_options = {"REGISTER", "UNDO"} 457 | 458 | def execute(self, context): 459 | 460 | message = [ 461 | "\u2588 Deselect all objects,", 462 | "\u2588 Select the Object to Align,", 463 | "\u2588 Press to select the Base Object,", 464 | "\u2588 Click button,", 465 | f" Press to Place Cursor,", 466 | f" Press <'B'> to Add Green Point (Base),", 467 | f" Press <'A'> to Add Red Point (Align),", 468 | f" Press <'DEL'> to delete Point,", 469 | f" Press <'ESC'> to Cancel Operation,", 470 | f" Press <'ENTER'> to execute Alignement.", 471 | "\u2588 NOTE :", 472 | "3 Green Points and 3 Red Points,", 473 | "are the minimum required for Alignement!", 474 | ] 475 | ShowMessageBox(message=message, title="INFO", icon="INFO") 476 | 477 | return {"FINISHED"} 478 | 479 | 480 | ############################################################################# 481 | classes = [ 482 | BDENTAL_ALIGN_OT_AlignPoints, 483 | BDENTAL_ALIGN_OT_AlignPointsInfo, 484 | ] 485 | 486 | 487 | def register(): 488 | 489 | for cls in classes: 490 | bpy.utils.register_class(cls) 491 | 492 | 493 | def unregister(): 494 | 495 | for cls in reversed(classes): 496 | bpy.utils.unregister_class(cls) 497 | -------------------------------------------------------------------------------- /LICENSE: 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No Surrender of Others' Freedom. 541 | 542 | If conditions are imposed on you (whether by court order, agreement or 543 | otherwise) that contradict the conditions of this License, they do not 544 | excuse you from the conditions of this License. If you cannot convey a 545 | covered work so as to satisfy simultaneously your obligations under this 546 | License and any other pertinent obligations, then as a consequence you may 547 | not convey it at all. For example, if you agree to terms that obligate you 548 | to collect a royalty for further conveying from those to whom you convey 549 | the Program, the only way you could satisfy both those terms and this 550 | License would be to refrain entirely from conveying the Program. 551 | 552 | 13. Use with the GNU Affero General Public License. 553 | 554 | Notwithstanding any other provision of this License, you have 555 | permission to link or combine any covered work with a work licensed 556 | under version 3 of the GNU Affero General Public License into a single 557 | combined work, and to convey the resulting work. The terms of this 558 | License will continue to apply to the part which is the covered work, 559 | but the special requirements of the GNU Affero General Public License, 560 | section 13, concerning interaction through a network will apply to the 561 | combination as such. 562 | 563 | 14. Revised Versions of this License. 564 | 565 | The Free Software Foundation may publish revised and/or new versions of 566 | the GNU General Public License from time to time. Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | --------------------------------------------------------------------------------