#!BPY """ Name: 'Stl Batch (.stl)...' Blender: 236 Group: 'Import' Tooltip: 'Import Stereo Lithography (.stl) File Format' """ __author__ = "Mitch Hughes (lobo)" __url__ = ("blender", "elysiun", "Author's homepage, http://blender.formworks.co.nz") __version__ = "0.3" __bpydoc__ = """\ This script batch imports binary Stereo Lithography files into Blender. Usage: Add the script to your blender/scripts directory Execute this script from the "File->Import" menu and choose an STL Batch file, select a file in the directory you would like to batch import .stl files from. """ # +---------------------------------------------------------+ # | Copyright (c) 2005 Mitch Hughes | # | http://blender.formworks.co.nz | # | blender@formworks.co.nz | # | Feb 19, 2005 | # | Released under the Blender Artistic Licence (BAL) | # +---------------------------------------------------------+ # | Batch Import Directory of STL Binary Files (*.stl) | # +---------------------------------------------------------+ import Blender, mod_meshtools, os, struct, sys, string from struct import * from types import * from Blender import NMesh, Scene, Object, Draw, Image, BGL from Blender.Window import * #Globals #Detect OS if (os.name == 'nt'): g_working_dir=Draw.Create("c:\\path\\to\\import\\from") g_os_separator = '\\' else: g_working_dir=Draw.Create("/path/to/import/from") g_os_separator = '/' #Default Scaling g_scale=Draw.Create(0.01) # Events EVENT_NOEVENT=1 EVENT_LOAD_STL=2 EVENT_CHOOSE_FILENAME=3 EVENT_EXIT=100 ###################################################### # Callbacks for Window functions ###################################################### def filename_callback(filename_in_dir): global g_working_dir # Get the target directory to batch import g_working_dir.val=os.path.dirname(filename_in_dir) ###################################################### # GUI Loader # GUI Code taken from Bob Holcomb's ASCII stl_import script and modified ###################################################### def draw_gui(): global g_scale global g_working_dir global g_scale_slider global EVENT_NOEVENT,EVENT_LOAD_STL,EVENT_CHOOSE_FILENAME,EVENT_EXIT ########## Titles BGL.glClear(BGL.GL_COLOR_BUFFER_BIT) BGL.glRasterPos2d(8, 190) Draw.Text(" Binary STL Batch Importer ") BGL.glRasterPos2d(8, 170) Draw.Text("1) Select a file from the directory you") BGL.glRasterPos2d(8, 155) Draw.Text(" wish to Batch Import files from") ######### Parameters GUI Buttons g_working_dir = Draw.String("", EVENT_NOEVENT, 10, 130, 250, 18, g_working_dir.val, 255, "Directory to Batch Import") ########## stl File Select Button Draw.Button("Select",EVENT_CHOOSE_FILENAME,95,110,80,18) BGL.glRasterPos2d(8, 85) Draw.Text("2) Set the desired Scaling Factor") ########## Scale slider-default is 0.1 g_scale= Draw.Slider("Scale Factor: ", EVENT_NOEVENT, 10, 60, 250, 18, g_scale.val, 0.001, 10.0, 1, "Scale factor for STL Models"); BGL.glRasterPos2d(8, 35) Draw.Text("3) Press Import") ######### Draw and Exit Buttons Draw.Button("Import",EVENT_LOAD_STL , 10, 10, 80, 18) Draw.Button("Exit",EVENT_EXIT , 180, 10, 80, 18) def event(evt, val): if (evt == Draw.QKEY and not val): Draw.Exit() def bevent(evt): global g_working_dir global g_material_filename global EVENT_NOEVENT,EVENT_LOAD_STL,EVENT_EXIT ######### Manages GUI events if (evt==EVENT_EXIT): Draw.Exit() elif (evt==EVENT_CHOOSE_FILENAME): FileSelector(filename_callback, "STL File Selection") #load the object and materials elif (evt==EVENT_LOAD_STL): if (g_working_dir.val == "/path/to/import/from"): Draw.Exit() else: iterate_directory(g_working_dir.val) Blender.Redraw() Draw.Exit() ###################################################### # Read STL Triangle Format ###################################################### def read_file(filename): global g_scale file = open(filename, "rb") #80 Any text such as the creator's name header = unpack("<80s", file.read(80)) #4 int equal to the number of facets in file facets = unpack("i", file.read(4)) # Collect vert data from RAW format faces = [] for i in range(0, facets[0]): n_x = unpack("f", file.read(4)) n_y = unpack("f", file.read(4)) n_z = unpack("f", file.read(4)) v1_x = unpack("f", file.read(4)) v1_y = unpack("f", file.read(4)) v1_z = unpack("f", file.read(4)) v2_x = unpack("f", file.read(4)) v2_y = unpack("f", file.read(4)) v2_z = unpack("f", file.read(4)) v3_x = unpack("f", file.read(4)) v3_y = unpack("f", file.read(4)) v3_z = unpack("f", file.read(4)) unused = file.read(2) faces.append([(v1_x[0]*g_scale.val, v1_y[0]*g_scale.val, v1_z[0]*g_scale.val), (v2_x[0]*g_scale.val, v2_y[0]*g_scale.val, v2_z[0]*g_scale.val), (v3_x[0]*g_scale.val, v3_y[0]*g_scale.val, v3_z[0]*g_scale.val)]) file.close() # The fine piece of code below for eliminating duplicate verts # and creating the object in blender was copied directly from # the slp import export script written by # Anthony D'Agostino (Scorpius) # Generate verts and faces lists, without duplicates verts = [] coords = {} index = 0 for i in range(len(faces)): for j in range(len(faces[i])): vertex = faces[i][j] if not coords.has_key(vertex): coords[vertex] = index index += 1 verts.append(vertex) faces[i][j] = coords[vertex] objname = Blender.sys.splitext(Blender.sys.basename(filename))[0] mod_meshtools.create_mesh(verts, faces, objname) Blender.Window.DrawProgressBar(1.0, '') # clear progressbar print "Successfully imported " + Blender.sys.basename(filename) ###################################################### # Read Files in Directory ###################################################### def iterate_directory(working_dir): #Check for stl extension so we dont try and #import other files in the directory #stl_extension = re.compile('\.stl$', re.IGNORECASE) for file_name in os.listdir (working_dir): if string.rfind(string.lower(file_name), '.stl')>0: read_file(working_dir+g_os_separator+file_name) else: print "Omitting "+file_name #def fs_callback(filename_in_dir): # iterate_directory(filename_in_dir) #Blender.Window.FileSelector(fs_callback, "Batch STL") Draw.Register(draw_gui, event, bevent)