Konzola Python

The Python Console is a quick way to execute commands, with access to the entire Python API, command history and auto-complete. The command prompt is typical for Python 3.x, the interpreter is loaded and is ready to accept commands at the prompt >>>.

The Python Console is a good way to explore the possibilities of Blender built-in Python. The Python Console can be used to test small bits of Python code which can then be pasted into larger scripts.

Konzola Pythonu.

Rozhranie

Ponuky záhlavia

Ponuka Zobraziť

Priblížiť/oddialiť

Increases/Decreases the font size of the console text.

Prejsť na predchádzajúce slovo Ctrl+←

Presunie kurzor na začiatok predošlého slova. Ak je kurzor v strede slova, kurzor sa presunie na začiatok aktuálneho slova.

Prejsť na ďalšie slovo Ctrl+→

Presunie kurzor na koniec nasledujúceho slova. Ak je kurzor v strede slova, kurzor sa presunie na koniec aktuálneho slova.

Presunúť na začiatok riadku Home

Presunie kurzor na začiatok aktuálneho riadku.

Presunúť na koniec riadku End

Presunie kurzor na koniec aktuálneho riadku.

Ponuka Konzola

Zmazať všetko

Refreshes the console giving the view a fresh start. Note that command history is not cleared.

Zmazať riadok Shift+Enter.

Odstráni všetko z riadku výzvy.

Odstrániť predchádzajúce slovo Ctrl+Backspace

Vymaže všetko medzi kurzorom a začiatkom predchádzajúceho slova (oddelené bodkami). Ak je kurzor uprostred slova, vymaže sa všetko na začiatok aktuálneho slova.

Odstrániť ďalšie slovo Ctrl+Delete

Vymaže všetko medzi kurzorom a koncom ďalšieho slova. Ak je kurzor uprostred slova, vymaže sa všetko na koniec aktuálneho slova.

Kopírovať ako skript Shift+Ctrl+C

Copies the full history buffer to the clipboard, this can be pasted into a text file to be used as a Python script.

Kopírovať Ctrl+C

Copy the selection.

Prilepiť Ctrl+V

Paste into the command line.

Odsadenie Tab

Vloží znak tabulátora na kurzor.

Zrušiť odsadenie Shift+Tab

Zruší odsadenie výberu.

V histórii dozadu ↑

Changes the current command to previous command as they appear in the command history.

V histórii dopredu ↓

Changes the current command to next command as they appear in the command history.

Automatické dokončovanie Tab

See Auto Completion for more information.

Hlavné zobrazenie

Priradenie kláves

• Left / Right – Cursor motion.

• Ctrl-Left / Ctrl-Right – Cursor motion, by word.

• Backspace / Delete – Zmazať znaky.

• Ctrl+Backspace / Ctrl+Delete – Zmazať slová.

• Enter – Vykonať príkaz.

• Shift+Enter – Pridať do histórie príkazov bez vykonania.

Použitie

Aliasy

Pre konvenciu sú k dispozícii niektoré premenné a moduly:

• C: Rýchly prístup k bpy.context.

• D: Rýchly prístup k bpy.data.

• bpy: Modul API Blender Python API na najvyššej úrovni.

Prvý pohľad na prostredie konzoly

To check what is loaded into the interpreter environment, type dir() at the prompt and execute it.

Automatické dokončovanie

Now, type bpy. and then press Tab and you will see the Console auto-complete feature in action.

You will notice that a list of submodules inside of bpy appear. These modules encapsulate all that we can do with Blender Python API and are very powerful tools.

Lets list all the contents of bpy.app module.

Notice the green output above the prompt where you enabled auto-completion. What you see is the result of auto completion listing. In the above listing all are module attributed names, but if you see any name end with (, then that is a function.

We will make use of this a lot to help our learning the API faster. Now that you got a hang of this, lets proceed to investigate some of modules in bpy.

Before Tinkering with the Modules

If you look at the 3D Viewport in the default Blender scene, you will notice three objects: Cube, Light and Camera.

• All objects exist in a context and there can be various modes under which they are operated upon.

• At any instance, only one object is active and there can be more than one selected object.

• All objects are data in the blend-file.

• There are operators/functions that create and modify these objects.

For all the scenarios listed above (not all were listed, mind you…) the bpy module provides functionality to access and modify data.

Príklady

bpy.context

Poznámka

Ak chcete, aby nižšie uvedené príkazy zobrazovali správny výstup, musíte v 3D zábere vybrať objekty.

bpy.context.mode

Will print the current 3D Viewport mode (Object, Edit, Sculpt, etc.).

bpy.context.object or bpy.context.active_object

Will give you access to the active object in the 3D Viewport.

Change the X location to a value of 1:

bpy.context.object.location.x = 1

Move the object from previous X location by 0.5 unit:

bpy.context.object.location.x += 0.5

Change the X, Y, Z location:

bpy.context.object.location = (1, 2, 3)

Change only the X, Y components:

bpy.context.object.location.xy = (1, 2)

The data type of object’s location:

type(bpy.context.object.location)

Now that is a lot of data that you have access to:

dir(bpy.context.object.location)

bpy.context.selected_objects

Will give access to a list of all selected objects.

Type this and then press Tab:

bpy.context.selected_objects

To print out the name of first object in the list:

bpy.context.selected_objects[0]

The complex one… But this prints a list of objects not including the active object:

[obj for obj in bpy.context.selected_objects if obj != bpy.context.object]

bpy.data

bpy.data has functions and attributes that give you access to all the data in the blend-file.

You can access following data in the current blend-file: objects, meshes, materials, textures, scenes, screens, sounds, scripts, etc.

That is a lot of data.

bpy.ops

The tool system is built around the concept of operators. Operators are typically executed from buttons or menus but can be called directly from Python too.

See the bpy.ops API documentation for a list of all operators.