$re = '/(ExportSTL.+?global_scale = .+?default=)(.+?),/s';
$str = '# ##### 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 #####
# <pep8-80 compliant>
bl_info = {
"name": "STL format",
"author": "Guillaume Bouchard (Guillaum)",
"version": (1, 1, 1),
"blender": (2, 74, 0),
"location": "File > Import-Export > Stl",
"description": "Import-Export STL files",
"warning": "",
"wiki_url": "http://wiki.blender.org/index.php/Extensions:2.6/Py/"
"Scripts/Import-Export/STL",
"support": \'OFFICIAL\',
"category": "Import-Export",
}
# @todo write the wiki page
"""
Import-Export STL files (binary or ascii)
- Import automatically remove the doubles.
- Export can export with/without modifiers applied
Issues:
Import:
- Does not handle endien
"""
if "bpy" in locals():
import importlib
if "stl_utils" in locals():
importlib.reload(stl_utils)
if "blender_utils" in locals():
importlib.reload(blender_utils)
import os
import bpy
from bpy.props import (StringProperty,
BoolProperty,
CollectionProperty,
EnumProperty,
FloatProperty,
)
from bpy_extras.io_utils import (ImportHelper,
ExportHelper,
orientation_helper_factory,
axis_conversion,
)
from bpy.types import Operator, OperatorFileListElement
IOSTLOrientationHelper = orientation_helper_factory("IOSTLOrientationHelper", axis_forward=\'Y\', axis_up=\'Z\')
class ImportSTL(Operator, ImportHelper, IOSTLOrientationHelper):
"""Load STL triangle mesh data"""
bl_idname = "import_mesh.stl"
bl_label = "Import STL"
bl_options = {\'UNDO\'}
filename_ext = ".stl"
filter_glob = StringProperty(
default="*.stl",
options={\'HIDDEN\'},
)
files = CollectionProperty(
name="File Path",
type=OperatorFileListElement,
)
directory = StringProperty(
subtype=\'DIR_PATH\',
)
global_scale = FloatProperty(
name="Scale",
soft_min=0.001, soft_max=1000.0,
min=1e-6, max=1e6,
default=1.0,
)
use_scene_unit = BoolProperty(
name="Scene Unit",
description="Apply current scene\'s unit (as defined by unit scale) to imported data",
default=False,
)
def execute(self, context):
from . import stl_utils
from . import blender_utils
from mathutils import Matrix
paths = [os.path.join(self.directory, name.name)
for name in self.files]
scene = context.scene
# Take into account scene\'s unit scale, so that 1 inch in Blender gives 1 inch elsewhere! See T42000.
global_scale = self.global_scale
if scene.unit_settings.system != \'NONE\' and self.use_scene_unit:
global_scale /= scene.unit_settings.scale_length
global_matrix = axis_conversion(from_forward=self.axis_forward,
from_up=self.axis_up,
).to_4x4() * Matrix.Scale(global_scale, 4)
if not paths:
paths.append(self.filepath)
if bpy.ops.object.mode_set.poll():
bpy.ops.object.mode_set(mode=\'OBJECT\')
if bpy.ops.object.select_all.poll():
bpy.ops.object.select_all(action=\'DESELECT\')
for path in paths:
objName = bpy.path.display_name(os.path.basename(path))
tris, pts = stl_utils.read_stl(path)
blender_utils.create_and_link_mesh(objName, tris, pts, global_matrix)
return {\'FINISHED\'}
class ExportSTL(Operator, ExportHelper, IOSTLOrientationHelper):
"""Save STL triangle mesh data from the active object"""
bl_idname = "export_mesh.stl"
bl_label = "Export STL"
filename_ext = ".stl"
filter_glob = StringProperty(default="*.stl", options={\'HIDDEN\'})
global_scale = FloatProperty(
name="Scale",
min=0.01, max=1000.0,
default=1.0,
)
use_scene_unit = BoolProperty(
name="Scene Unit",
description="Apply current scene\'s unit (as defined by unit scale) to exported data",
default=False,
)
ascii = BoolProperty(
name="Ascii",
description="Save the file in ASCII file format",
default=False,
)
use_mesh_modifiers = BoolProperty(
name="Apply Modifiers",
description="Apply the modifiers before saving",
default=False,
)
def execute(self, context):
from . import stl_utils
from . import blender_utils
import itertools
from mathutils import Matrix
keywords = self.as_keywords(ignore=("axis_forward",
"axis_up",
"global_scale",
"check_existing",
"filter_glob",
"use_scene_unit",
"use_mesh_modifiers",
))
scene = context.scene
# Take into account scene\'s unit scale, so that 1 inch in Blender gives 1 inch elsewhere! See T42000.
global_scale = self.global_scale
if scene.unit_settings.system != \'NONE\' and self.use_scene_unit:
global_scale *= scene.unit_settings.scale_length
global_matrix = axis_conversion(to_forward=self.axis_forward,
to_up=self.axis_up,
).to_4x4() * Matrix.Scale(global_scale, 4)
faces = itertools.chain.from_iterable(
blender_utils.faces_from_mesh(ob, global_matrix, self.use_mesh_modifiers)
for ob in context.selected_objects)
stl_utils.write_stl(faces=faces, **keywords)
return {\'FINISHED\'}
def menu_import(self, context):
self.layout.operator(ImportSTL.bl_idname, text="Stl (.stl)")
def menu_export(self, context):
default_path = os.path.splitext(bpy.data.filepath)[0] + ".stl"
self.layout.operator(ExportSTL.bl_idname, text="Stl (.stl)")
def register():
bpy.utils.register_module(__name__)
bpy.types.INFO_MT_file_import.append(menu_import)
bpy.types.INFO_MT_file_export.append(menu_export)
def unregister():
bpy.utils.unregister_module(__name__)
bpy.types.INFO_MT_file_import.remove(menu_import)
bpy.types.INFO_MT_file_export.remove(menu_export)
if __name__ == "__main__":
register()
';
$subst = "${1}10.0,";
$result = preg_replace($re, $subst, $str, 1);
echo "The result of the substitution is ".$result;
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php