Python Programming Tag Manual¶
Introduction¶
The Python Progarmming Tag is used to write and execute Python code. It can be found in the scripting part of the Tag Menu.
![../_images/scripting_tag.jpg](../_images/scripting_tag.jpg)
See also
The important Threading Manual below.
A Python Tag is implemented through a TagData
plugin.
Functions¶
-
main
() Override - It corresponds to the
Execute
method of the Python Tag. It can be called multiple time per frame.
-
message
(id, data) Override - It corresponds to the
Message
method of the Python Tag. Called when a tag receives messages.- Parameters
id (int) – The message type.
data (any) – The message data.
- Return type
bool
- Returns
Depends on the message type.
-
draw
(bd) Override - It corresponds to the
Draw
method of the Python Tag. Called to display some visual element in the viewport.- Parameters
bd (c4d.BaseDraw) – The editor’s view.
- Return type
bool
- Returns
Success of drawing into the editor view.
Variables¶
- The following variables are defined in a Python Tag scope (in all functions even yours):
doc:
BaseDocument
: The document hosting the tag.op:
BaseTag
: The Python Tag.flags:
int
: A combination of the following flags:EXECUTIONFLAGS_NONE
None.
EXECUTIONFLAGS_ANIMATION
Animation is calculated.
EXECUTIONFLAGS_EXPRESSION
Expressions are calculated.
EXECUTIONFLAGS_CACHEBUILDING
Cache building is done.
EXECUTIONFLAGS_CAMERAONLY
Only camera dependent expressions shall be executed.
EXECUTIONFLAGS_INDRAG
Pipeline is done within scrubbing.
EXECUTIONFLAGS_INMOVE
Pipeline is done within moving.
EXECUTIONFLAGS_RENDER
The external renderer (Picture Viewer) is running.
EXECUTIONFLAGS_ALLOW_PRIORITYSHIFT
New in version R18: Allow to shift the priority with the priority shift tag. Private.
priority:
int
: One of the following flags:EXECUTIONPRIORITY_INITIAL
Initial.
EXECUTIONPRIORITY_ANIMATION
Animation.
EXECUTIONPRIORITY_ANIMATION_NLA
NLA.
EXECUTIONPRIORITY_EXPRESSION
Expression.
EXECUTIONPRIORITY_DYNAMICS
Dynamics.
EXECUTIONPRIORITY_GENERATOR
Generators.
EXECUTIONPRIORITY_SCENENODE
Scene nodes.
EXECUTIONPRIORITY_FORCE
Highest priority that will ensure execution even if the execution pipeline is cancelled before. Only use this to e.g. release locks or do super-fast non-blocking operations.
tp:
TP_MasterSystem
: The Thinking Particle Master system of the document.