Improve mac file for visualisation

[dsarrut]

This should work for any absolute/relative paths :
sim.visu_commands = gate.utility.read_mac_file_to_commands("my_visu_commands")

---

On Mon, Apr 27, 2026 at 5:24 PM David Grimbichler david.grimbichler@clermont.in2p3.fr wrote:
Hello,
Reading the source code, I think that your mac file my_visu_commands.mac should be in a "mac" subdirectory relative to your python script, and you should write only the base part of the filename :

sim.visu_commands = gate.utility.read_mac_file_to_commands("my_visu_commands")

Source code :

opengate/opengate/utility.py

Line 380 in 343e59c

def read_mac_file_to_commands(filename):

def read_mac_file_to_commands(filename):
# read a file located into the 'mac' folder of the source code
# return a list of commands
resource_package = package
with resources.open_text(f"{resource_package}.mac", filename) as f:
...

Regards

De: "Machiel Kolstein" mkolstein@IFAE.ES
À: OPENGATE-L@IN2P3.FR
Envoyé: Lundi 27 Avril 2026 16:56:13
Objet: Re: [OPENGATE-L] GATE 10 vrml without trajectories

Hi,

I am sorry, something went wrong during copying/pasting. In any case, with the extra bar, the same thing happens:
ValueError: '/data/vip/common/machiel/GATE10_2026/2026_04_16_Derenzo/my_visu_commands.mac' must be only a file name

On Mon, Apr 27, 2026 at 4:38 PM Stiller, Wolfram, Dr. Wolfram.Stiller@med.uni-heidelberg.de wrote:
Hi Machiel,

Try adding another slash at the end of your folder pathname, i.e.

MYPATH = "/data/vip/common/machiel/GATE10_2026/2026_04_16_Derenzo/" instead of

MYPATH = "/data/vip/common/machiel/GATE10_2026/2026_04_16_Derenzo"

That might do the trick…

Best regards,

Wolf

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Funktionsbereichsleiter „Physik & Methoden“ | Diagnostische & Interventionelle Radiologie (DIR)

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Von: GATE Users OPENGATE-L@IN2P3.FR Im Auftrag von Machiel Kolstein
Gesendet: Montag, 27. April 2026 10:37
An: OPENGATE-L@IN2P3.FR
Betreff: Re: [OPENGATE-L] GATE 10 vrml without trajectories

­

Hi David,

My code reads:
MYPATH = "/data/vip/common/machiel/GATE10_2026/2026_04_16_Derenzo"
myvisupath = MYPATH + "my_visu_commands.mac"
sim.visu_commands = gate.utility.read_mac_file_to_commands(myvisupath)

The complete error message is:

ValueError Traceback (most recent call last)
Cell In[4], line 14
12 myvisupath = MYPATH + "my_visu_commands.mac"
13 # myvisupath = "my_visu_commands.mac"
---> 14 sim.visu_commands = gate.utility.read_mac_file_to_commands(myvisupath)
15 sim.random_seed = 'auto'

File /data/vip/software/PYTHON_stuff/gate/lib/python3.12/site-packages/opengate/utility.py:383, in read_mac_file_to_commands(filename)
379 def read_mac_file_to_commands(filename):
380 # read a file located into the 'mac' folder of the source code
381 # return a list of commands
382 resource_package = package
--> 383 with resources.open_text(f"{resource_package}.mac", filename) as f:
384 c = f.read()
385 commands = []

File /data/astro/software/miniforge3/lib/python3.12/importlib/resources/_legacy.py:25, in deprecated..wrapper(*args, **kwargs)
16 @functools.wraps(func)
17 def wrapper(*args, **kwargs):
18 warnings.warn(
19 f"{func.name} is deprecated. Use files() instead. "
20 "Refer to https://importlib-resources.readthedocs.io"
(...) 23 stacklevel=2,
24 )
---> 25 return func(*args, **kwargs)

File /data/astro/software/miniforge3/lib/python3.12/importlib/resources/_legacy.py:62, in open_text(package, resource, encoding, errors)
54 @deprecated
55 def open_text(
56 package: Package,
(...) 59 errors: str = 'strict',
60 ) -> TextIO:
61 """Return a file-like object opened for text reading of the resource."""
---> 62 return (_common.files(package) / normalize_path(resource)).open(
63 'r', encoding=encoding, errors=errors
64 )

File /data/astro/software/miniforge3/lib/python3.12/importlib/resources/_legacy.py:38, in normalize_path(path)
36 parent, file_name = os.path.split(str_path)
37 if parent:
---> 38 raise ValueError(f'{path!r} must be only a file name')
39 return file_name

ValueError: '/data/vip/common/machiel/GATE10_2026/2026_04_16_Derenzomy_visu_commands.mac' must be only a file name

I don't know what you mean with "set an issue"? Is there a special place for Gate-10 to report problems?

Best regards,

Machiel Kolstein

On Mon, Apr 27, 2026 at 8:48 AM David Sarrut david.sarrut@creatis.insa-lyon.fr wrote:

Hi,

I tried and it seems the command accepts an absolute path or a path relative to where the default .mac files are (... opengate/opengate/mac), can you try or set an issue if it does not work please ?

best

David

On Fri, Apr 24, 2026 at 6:30 PM Machiel Kolstein mkolstein@ifae.es wrote:

Hi,

I tried that, but it seems that command doesn't accept paths before the filename, so the file should be located inside the opengate distribution itself. In any case, I found a different solution. I keep the default option, where trajectories are drawn too, but if I want a visualisation without trajectories, simply comment out the source creation. That works fine.

Thanks,

Machiel

On Thu, Apr 23, 2026 at 8:53 PM David Sarrut david.sarrut@creatis.insa-lyon.fr wrote:

Hi Machiel,

oups, good catch ! It should be something like :

sim.visu_commands = gate.utility.read_mac_file_to_commands("my_visu_commands.mac")

best

David

On Thu, Apr 16, 2026 at 11:27 AM Machiel Kolstein mkolstein@ifae.es wrote:

Hi,

By default in GATE10, the visualisation (at least with VRML) also shows the track trajectories. How can I switch this off?
Following the manual I tried:
file_visu = open('my_visu_commands.mac', "w")
print("/vis/open VRML2FILE", file=file_visu)
print("/vis/drawVolume", file=file_visu)
sim.visu_commands = gate.read_mac_file_to_commands('my_visu_commands.mac')
But it gives me an error:
AttributeError: module 'opengate' has no attribute 'read_mac_file_to_commands'

Of course, I can edit the mac file in the installation:
opengate/mac/default_visu_commands_vrml.mac
but I don't want to change that file every time I want to the change the visualisation. (Moreover that file is shared with other users).

Best regards,

Machiel