Global Bounding Box error

[AngelicaScamarcia]

Hi there,
I have a code from an old version of Sofa (v20.12.02), and I would like to improve it since I downloaded the new version of Sofa (v.22.12) on my laptop.
I enabled the Geomagic plugin (the demo works in a properly way!), even though I'm struggling with these warnings, since I'm not able to see the scene of this old code with the new version.

How can I fix it?

[hugtalbot]

Hey @AngelicaScamarcia

Thanks for posting this.
This warning only tells you that no component in the scene graph is in charge of computing the bounding box used for rendering. To remove this warning, only set bbox="-1 -1 -1 1 1 1" in your root node.

However, this might be the symptom of a hidden issue in your scene file.
Hope this helps

[AngelicaScamarcia]

Hi @hugtalbot
Thanks for answering me.
I add "bbox="-1 -1 -1 1 1 1" in my root node, but I still have the warning.

rootNode.createObject('VisualStyle', displayFlags='showVisualModels showBehaviorModels showCollisionModels hideBoundingCollisionModels showForceFields showInteractionForceFields hideWireframe', bbox='-1 -1 -1 1 1 1'') 

What can I do?

[hugtalbot]

No you need this:

rootNode.bbox.value=[-1, -1, -1, 1, 1, 1]
rootNode.createObject('VisualStyle', displayFlags='showVisualModels showBehaviorModels showCollisionModels hideBoundingCollisionModels showForceFields showInteractionForceFields hideWireframe') 

Hope this helps

[Yongkai-Ye]

Hello, I solved this problem. I think it's good to add the command "rootNode.bbox.value=[-1, -1, -1, 1, 1, 1]" to a specific child node, such as "simulation = rootNode.addChild('Simulation',bbox="-1 -1 -1 1 1 1")"

[AngelicaScamarcia]

@hugtalbot thanks!
But still not working

rootNode.bbox.value=[-1, -1, -1, 1, 1, 1]
rootNode.createObject('VisualStyle', displayFlags='showVisualModels showBehaviorModels showCollisionModels hideBoundingCollisionModels showForceFields showInteractionForceFields hideWireframe')

[hugtalbot]

strange ..

Maybe :

rootNode.bbox.value="-1 -1 -1 1 1 1"
rootNode.createObject('VisualStyle', displayFlags='showVisualModels showBehaviorModels showCollisionModels hideBoundingCollisionModels showForceFields showInteractionForceFields hideWireframe') 

[AngelicaScamarcia]

Hi @hugtalbot
Sorry for late reply, I modified as you suggest and It's still the same

[damienmarchal]

Hi @AngelicaScamarcia, @hugtalbot

	print(root.bbox.value.shape)

shows that bbox is a two dimentional array of size 2,3 (because there is 2 Vector3d).

So I think the proper setting of the bbox is:

	root.bbox.value = [[0,0,0],[1,1,1]]

[AngelicaScamarcia]

Hi @damienmarchal
Thanks for you help, but still the same error

[damienmarchal]

Weird,

Can you try this scene (because adding the setting of the bbox remove the message on my side):

import Sofa

def createScene(root):
	print(root.bbox.value)
	root.bbox.value = [[0,0,0],[1,1,1]]
	print(root.bbox.value)	

[AngelicaScamarcia]

Thanks, but this is the situation!

[damienmarchal]

Thanks for testing,

Can you make a screenshot with full print with the scene... (it is printing the bbox value twice). On my laptop (on the developpement branch that is) this looks like:

[ 1.79769313e+308  1.79769313e+308  1.79769313e+308]
 [-1.79769313e+308 -1.79769313e+308 -1.79769313e+308]]
[[0. 0. 0.]
 [1. 1. 1.]]
[INFO]    [SceneCheckerVisitor] Validating node "root" with checks: [SceneCheckCollisionResponse, SceneCheckDeprecatedComponents, SceneCheckDuplicatedName, SceneCheckMissingRequiredPlugin, SceneCheckUsingAlias]
[INFO]    [SceneCheckerVisitor] Finished validating node "root".
[WARNING] [Node(root)] An animation loop is required, but has not been found. Add an animation loop in the root of your scene to fix this warning. The list of available animation loop components is: [ConstraintAnimationLoop, DefaultAnimationLoop, FreeMotionAnimationLoop, MultiStepAnimationLoop, MultiTagAnimationLoop]. A component of type DefaultAnimationLoop will be automatically added for you.

where we can see that the root node is correctly set.

[AngelicaScamarcia]

[ERROR] [SofaPython3::SceneLoader] Unable to completely load the scene from file 'C:\Users\scama\Desktop\prova.py'.
Python exception:
ModuleNotFoundError: No module named 'numpy'

At:
C:\Users\scama\Desktop\prova.py(4): createScene

[INFO] [SceneCheckerVisitor] Validating node "root" with checks: [SceneCheckDuplicatedName, SceneCheckMissingRequiredPlugin, SceneCheckUsingAlias, SceneCheckDeprecatedComponents, SceneCheckCollisionResponse]
[INFO] [SceneCheckerVisitor] Finished validating node "root".
[WARNING] [Node(root)] An animation loop is required, but has not been found. Add an animation loop in the root of your scene to fix this warning. The list of available animation loop components is: [ConstraintAnimationLoop, DefaultAnimationLoop, FreeMotionAnimationLoop, MultiStepAnimationLoop, MultiTagAnimationLoop]. A component of type DefaultAnimationLoop will be automatically added for you.
[WARNING] [RealGUI] Global Bounding Box seems very small; Your viewer settings (based on the bbox) are likely invalid, switching to default value of [-1,-1,-1,1,1,1].This is caused by using component which does not implement properly the computeBBox function.You can remove this warning by manually forcing a value in the parameter bbox="minX minY minZ maxX maxY maxZ" in your root node

[damienmarchal]

I see there is an error before the warning. The error must be fixed ... because if an error occurs, all the lines after the faulty one are not executed.

The error is that numpy cannot be loaded.
To have sofa working numpy should be installed, is this your case.

[github-actions[bot]]

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@AngelicaScamarcia
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[github-actions[bot]]

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@AngelicaScamarcia
In accordance with our forum management policy, the last reply is more than 4 months old and is therefore closed. Our objective is to keep the forum up to date and offer the best support experience.

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[github-actions[bot]]

⚠️ ⚠️ ⚠️
@AngelicaScamarcia
In accordance with our forum management policy, the last reply is more than 4 months old and is therefore closed. Our objective is to keep the forum up to date and offer the best support experience.

Please feel free to reopen it if the topic is still active by providing us with an update. Please feel free to open a new thread at any time - we'll be happy to help where and when we can.