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Create Viewport camera using Python Plugin #81
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setting the name is as easy as |
Thanks,
But the angle X1 Y2 Z3 ?
Il sab 18 nov 2023, 13:19 tmontaigu ***@***.***> ha scritto:
… setting the name is as easy as new_viewport_object.setName("my name")
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What are these angles ? |
To define a camera you need an origin point, a second point indicating the
direction of view of the camera and a third point indicating which is the
up direction of the camera last you need the focal length of the camera. In
a simpler way you need a point of origin a direction vector and a vector to
indicate which is the up direction and as before the focal length. A last
way is a point of origin, the focal length and the three Euler angles. The
simplest system is the point of origin, the two vectors and the focal
length.
Translated with www.DeepL.com/Translator (free version)
Il dom 19 nov 2023, 13:56 tmontaigu ***@***.***> ha scritto:
… What are these angles ?
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In that case I think the view_mat = pycc.ccGLMatrixd()
view_mat.initFromParameters(
phi_rad=0.1,
theta_rad=0.2,
psi_rad=0.3,
t3D=CCVector3d(0,0,0)
)
new_viewport_parameters.viewMat = view_mat; |
testing this code:
all paramter of the viewport are all zero ....... |
What do you mean they are zero ? import pycc
from cccorelib import CCVector3d
new_viewport_object = pycc.cc2DViewportObject()
new_viewport_object.setName('my name')
new_viewport_parameters = new_viewport_object.getParameters()
new_camera_center = CCVector3d(2023, 301, 610)
auto_update_focal = False
new_focal_distance = 600.5
new_pivot_point = CCVector3d(2028, 305, 485)
view_mat = pycc.ccGLMatrixd()
view_mat.initFromParameters(
phi_rad=0.1,
theta_rad=0.2,
psi_rad=0.3,
t3D=CCVector3d(0,0,0)
)
new_viewport_parameters.setCameraCenter(new_camera_center, auto_update_focal)
new_viewport_parameters.setPivotPoint(new_pivot_point, auto_update_focal)
new_viewport_parameters.computeDistanceToHalfWidthRation()
new_viewport_parameters.computeDistanceToWidthRatio()
new_viewport_parameters.computeViewMatrix()
new_viewport_parameters.computeWidthAtFocalDist()
new_viewport_parameters.viewMat = view_mat;
new_viewport_parameters.setFocalDistance(new_focal_distance)
new_viewport_object.setParameters(new_viewport_parameters)
pycc.GetInstance().addToDB(new_viewport_object)
new_viewport_parameters = new_viewport_object.getParameters()
print("Camera Center:", new_viewport_parameters.getCameraCenter())
print("Focal Distance:", new_viewport_parameters.getFocalDistance())
print("Pivot Point:", new_viewport_parameters.getPivotPoint())
print("Distance To Half Width Ratio:", new_viewport_parameters.computeDistanceToHalfWidthRation())
print("Distance To Width Ratio:", new_viewport_parameters.computeDistanceToWidthRatio())
print("View Matrix:", new_viewport_parameters.computeViewMatrix())
print("Width At Focal Dist:", new_viewport_parameters.computeWidthAtFocalDist())
print("View Mat", view_mat.asArray()) I don't see any zero |
Now it seems to be working !!! |
using angles is quite complicated, I am trying to use FromViewDirAndUpDir however I have an unexpected error ?
|
Indeed there is a problem with this function, I will push a fix for that |
Fixed with #82 |
I am a beginner in Python programming, I am trying to create a new "camera viewport" with the following code, however I am having difficulty finding a way to assign the created viewport name, however I can't enter the X1, Y2, Z3 angles.
If anyone can help me I thank you very much.
is it possible to have more examples than those plublished at this address ?
https://tmontaigu.github.io/CloudCompare-PythonPlugin/examples.html
CC & Python together are amazing !!! Congratulations !!!
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