This is trouble shooting.
I couldn’t resize or rotate widget in Blender.
Blender 2.83
Windows 10
If the Options > Affect Only > Locations checkbox is on, check it off.
If the Rotation and Scale are rocked, the arrows to resize or rotate are not displayed.
The system of keymap preference in Blender is complex a little.
Today’s goal is to summarize how to customize keymaps in Blender. The main contents are how to change keymaps, save and import/export key configuration presets. This article doesn’t contain how to use keymap editor or details of UI.
Blender 2.83 (Python 3.7.4)
Windows 10
The following is an excerpt from the Blender manual.
The keymap editor lets you adjust your keymap via:
Presets: Predefined keymaps which come with Blender and can be added to.
from “Keymap” in Blender 2.92 Manual
Preferences: Keymaps may define their own preferences to change the functionality or add additional key bindings.
Key Map Items: You may add/remove/edit individual keymap entries.
Keymaps can be changed in each keymap editor.
(more…)This is a part of the project “Easy Keymap Generator”.
To implement a function that get keyconfig name and return keyconfig object.
The list of keyconfig names can be seen in Preferences window.
Blender 2.83 (Python 3.7.4)
Windows 10
This is my solution, but I don’t think it is the best way. Please let me know if you have any better ideas.
def get_keyconfig(keyconfig_name):
wm = bpy.context.window_manager
if keyconfig_name in wm.keyconfigs.keys():
return wm.keyconfigs[keyconfig_name]
else:
return NoneIf there is no keyconfig you’d like to get in current environment, you should activate the keyconfig by its path manually.
key_config_dict = get_keyconfig_dict()
configs = list(key_config_dict.keys())
print(configs)
# output => ['blender', 'blender_27x', 'industry_compatible', 'test1', 'test2']
kc = get_keyconfig(configs[1], key_config_dict)
print(kc)
# output => blender_27x <bpy_struct, KeyConfig("blender_27x")>I created a function to get the dict with keys of keyconfig name and values of path to the keyconfig python file.
Reference: How to get key config list in Blender Python
def get_keyconfigs():
"""
:return: dict{kerconfig_name(str): path to config file(str)}
"""
config_pathes = bpy.utils.preset_paths("keyconfig")
config_dict = {}
for config_path in config_pathes:
for file in os.listdir(config_path):
name, ext = os.path.splitext(file)
if ext.lower() in [".py", ".xml"] and not name[0] == ".":
config_dict[name] = os.path.join(config_path, file)
return config_dictActivate the specified keyconfig by its path and get active keyconfig with wm.keyconfigs.active then restore active keyconfig to original settings.
def get_keyconfig(keyconfig_name, keyconfig_dict):
wm = bpy.context.window_manager
if keyconfig_name in wm.keyconfigs.keys(): #if the keyconfig can be found, return it
return wm.keyconfigs[keyconfig_name]
else: # activate by config path and return it
keyconfig_path = keyconfig_dict[keyconfig_name]
current_path = keyconfig_dict[wm.keyconfigs.active.name]
bpy.ops.preferences.keyconfig_activate(filepath=keyconfig_path)
kc = wm.keyconfigs.active
bpy.ops.preferences.keyconfig_activate(filepath=current_path)
return kcThis is a part of the project “Easy Keymap Generator”.
To get the key config list in my addon. The list of key configs can be seen in Preferences window.
Blender 2.83 (Python 3.7.4)
Windows 10
Get the list directly from the preset directories.
Related article: How to get preset paths in Blender Python
def get_keyconfigs():
"""
:return: dict{kerconfig_name(str): path to config file(str)}
"""
config_pathes = bpy.utils.preset_paths("keyconfig")
config_dict = {}
for config_path in config_pathes:
for file in os.listdir(config_path):
name, ext = os.path.splitext(file)
if ext.lower() in [".py", ".xml"] and not name[0] == ".":
config_dict[name] = os.path.join(config_path, file)
return config_dict
print(key_config_dict.keys())
#output => dict_keys(['blender', 'blender_27x', 'industry_compatible', 'test1', 'test2'])This is a tips for blender addon developers.
To get the list of paths to preset directories, blender system preset and user preset and so on.
These are examples of the preset directory.
Blender 2.83 (Python 3.7.4)
Windows 10
Use bpy.utils.preset_paths(subdir) that returns the list of paths to the preset directory of subdir.
(more…)To use PySide/PySide2 UI in Blender Addon.
In this article PySide2 UI is used independently. PySide is not embedded in Blender custom UI or include Blender custom UI inside.
(more…)When I activate my addon that uses operations with bpy.ops in register() function, the error “AttributeError: ‘_RestrictContext’ object has no attribute ‘view_layer’ ” occurred.
(more…)To run Python script when Blender starts only once or every time.
Blender 2.83
Windows 10
I created a simple Python script “Documents\blenderPython\test\spheres.py” to add spheres as below
import bpy
for i in range(3):
bpy.ops.mesh.primitive_uv_sphere_add(radius=1, location=((i-1)*3, 0, 3))Start blender in command prompt with an argument -P or –python.
Reference: Python Options in Blender 2.91 Manual
This is just a Tips.
To hide/show headers and side bars in Blender.
Blender 2.83
Windows 10
Right-mouse-click the header and check buttons off.
Click dropdown button at the boundary of the editor.
You can show Sidebar in the same way.
You can hide Toolbar, Sidebar, Toon Settings in the same way.
To find preference file of Blender and view the contents of the file.
Blender 2.83 (I’m using 2.83 because it is LTS)
Windows 10
(more…)There are two areas where Blender’s defaults are stored:
The Preferences file stores keymap, add-ons theme and other options.
The Startup File stores the scene, Workspaces and interface which is displayed at startup and when loading a new file (File ‣ New).
from Blender2.91 manual