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NURBS-Python

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Hello NURBS-Python (geomdl) users! Please use this forum for discussion on NURBS-Python. The posts are open to public but you need to be a member to post.

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10/1/24

Questions about evaluation in B-spline surface

Hello everyone, I am now using geomdl a lot and I do have a question now. When trying to evaluate the

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Questions about evaluation in B-spline surface

Hello everyone, I am now using geomdl a lot and I do have a question now. When trying to evaluate the

10/1/24

8/13/24

Questions about Bspline/nurbs collocation matrix

Hello, I am now using nurbs a lot. I want to ask is there a way to get the collocation matrix for the

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Questions about Bspline/nurbs collocation matrix

Hello, I am now using nurbs a lot. I want to ask is there a way to get the collocation matrix for the

8/13/24

Jiacheng Qi, Onur R. Bingol3

8/10/24

Questions about evaluate_single

Dear Onur, Thanks! You helped me. Jiacheng 在2024年7月1日星期一 UTC+2 21:32:00<Onur R. Bingol> 写道：

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Questions about evaluate_single

Dear Onur, Thanks! You helped me. Jiacheng 在2024年7月1日星期一 UTC+2 21:32:00<Onur R. Bingol> 写道：

8/10/24

JBo, Onur R. Bingol3

7/10/24

module 'geomdl.visualization.VisMPL' has no attribute 'VisSurfTriangle'

👍 # Plot the control point grid and the evaluated surface #vis_comp = VisMPL.VisSurfTriangle()

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module 'geomdl.visualization.VisMPL' has no attribute 'VisSurfTriangle'

👍 # Plot the control point grid and the evaluated surface #vis_comp = VisMPL.VisSurfTriangle()

7/10/24

Richard Fuhr, … JBo8

7/8/24

Some of the sample programs display a blank screen

Now it works : https://colab.research.google.com/drive/1_d6q9YdZaGVaHhCu2ae-VaVQ2gZJf2QX At least on

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Some of the sample programs display a blank screen

Now it works : https://colab.research.google.com/drive/1_d6q9YdZaGVaHhCu2ae-VaVQ2gZJf2QX At least on

7/8/24

V K, Onur R. Bingol4

6/21/24

Unfortunately, the hearth valve geometry data is not available to share. It was created as a demo for

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Unfortunately, the hearth valve geometry data is not available to share. It was created as a demo for

6/21/24

Gabriel Jesus, Onur Bingol2

4/6/23

bug operations.split_curve

Hi Gabriel, Could it be a floating point error? What happens when you split the curve at u=0.25?

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bug operations.split_curve

Hi Gabriel, Could it be a floating point error? What happens when you split the curve at u=0.25?

4/6/23

Gabriella d' Albenzio, … Andras Lasso4

12/10/22

Extend a Surface both in u and v directions

Gabriella, You might check out the Alive project (http://alive-research.no/about.html), which

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Extend a Surface both in u and v directions

Gabriella, You might check out the Alive project (http://alive-research.no/about.html), which

12/10/22

JJ, Onur Bingol2

11/19/22

VolumeManager with "ValueError: Please set the number of control points on the u-, v- and w-directions"

You need to set u,v,w sizes and the knot vectors on the "BSpline.Volume" object.

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VolumeManager with "ValueError: Please set the number of control points on the u-, v- and w-directions"

You need to set u,v,w sizes and the knot vectors on the "BSpline.Volume" object.

11/19/22

Keith Sloan, Onur Bingol5

10/22/22

Curve Fitting Approximation.

I am revisiting this. I am trying to replace a whole series of short lines with a spline For simple

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Curve Fitting Approximation.

I am revisiting this. I am trying to replace a whole series of short lines with a spline For simple

10/22/22

M. Murat Ergeldi

10/21/22

Hello , First of all, I want o to thank to developers for a such a valuable effort. I was trying to

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Hello , First of all, I want o to thank to developers for a such a valuable effort. I was trying to

10/21/22

6/15/22

Maya nurbsCurve parameter

First, found out the below 2 equations do not conflict: number of cvs = degree + spans number of

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Maya nurbsCurve parameter

First, found out the below 2 equations do not conflict: number of cvs = degree + spans number of

6/15/22

Chris Choir, Onur Bingol4

5/15/22

Well, this answer of the question is the dilemma of the software developers. It is like the big fight

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Well, this answer of the question is the dilemma of the software developers. It is like the big fight

5/15/22

11/26/21

Dear developer, Can a example of sweeping a b-spline curve be given.It would be really helpful to me.

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Dear developer, Can a example of sweeping a b-spline curve be given.It would be really helpful to me.

11/26/21

9/30/21

export curve and surfaces to 3dm

How to export curves and surfaces into 3dm format.

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export curve and surfaces to 3dm

How to export curves and surfaces into 3dm format.

9/30/21

9/28/21

Dear developer, I need some video tutorials of NURBS implementation in python. If you can provide me

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Dear developer, I need some video tutorials of NURBS implementation in python. If you can provide me

9/28/21

Pavlo, Onur Bingol2

9/24/21

NURBS interpolate_curve B-Spline interpolate_curve

You might need to check local interpolation methods. NURBS-Python currently implements global methods

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NURBS interpolate_curve B-Spline interpolate_curve

You might need to check local interpolation methods. NURBS-Python currently implements global methods

9/24/21

Ekrem Ekici, Onur Bingol3

6/23/21

Derivative values for given (x0, y0) on the curve

Thanks for the answer Onur, Best regards, Ekrem On Wednesday, 23 June 2021 at 17:38:19 UTC+1 Onur

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Derivative values for given (x0, y0) on the curve

Thanks for the answer Onur, Best regards, Ekrem On Wednesday, 23 June 2021 at 17:38:19 UTC+1 Onur

6/23/21

G, Onur Bingol3

6/10/21

Naive NURBS creation

I'm trying to create some casings for 3d printing. I would like to create a casing out of planar

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Naive NURBS creation

I'm trying to create some casings for 3d printing. I would like to create a casing out of planar

6/10/21

5/17/21

How_to_Merge_small_surfaces_using_multi

Dear community, I want to create several surfaces in a for loop and then merge the surfaces. I have

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How_to_Merge_small_surfaces_using_multi

Dear community, I want to create several surfaces in a for loop and then merge the surfaces. I have

5/17/21

Ali Dashti, Onur Bingol5

5/12/21

Fwd: FW: How_To_Create_Irregular_Surfaces

Thanks for the link. Sorry for my basic problems. In this example: https://github.com/orbingol/geomdl

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Fwd: FW: How_To_Create_Irregular_Surfaces

Thanks for the link. Sorry for my basic problems. In this example: https://github.com/orbingol/geomdl

5/12/21

Sagar Jalui, Onur Bingol2

5/6/21

Obtain surface points for trimmed surfaces

Hi Sagar, You are right, "evalpts" won't get updated after trimming. I guess we could

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Obtain surface points for trimmed surfaces

Hi Sagar, You are right, "evalpts" won't get updated after trimming. I guess we could

5/6/21

2/8/21

Local maximum of NURBS surface

Hello everybody, Is there a way to find a coordinates (u,v parameters) or local maxima of NURBS

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Local maximum of NURBS surface

Hello everybody, Is there a way to find a coordinates (u,v parameters) or local maxima of NURBS

2/8/21

Burtski, Onur Bingol4

1/31/21

Walking along a B-Spline in uniform steps.

> Does this mean that I will need to search for the point that is 1mm distant from my current

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Walking along a B-Spline in uniform steps.

> Does this mean that I will need to search for the point that is 1mm distant from my current

1/31/21

1/31/21

Surface Approximations for Closed Meshes

Is there a way with NURBS-Python or creating Surface approximations as per 9.4 p405 Global

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Surface Approximations for Closed Meshes

Is there a way with NURBS-Python or creating Surface approximations as per 9.4 p405 Global

1/31/21

szam619, Onur Bingol2

1/14/21

Volume sweep and export to a usable CAD format for subsequent analysis.

Hi Saurabh, Thanks for your email. I am glad you and your research group liked geomdl. Sorry for the

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Volume sweep and export to a usable CAD format for subsequent analysis.

Hi Saurabh, Thanks for your email. I am glad you and your research group liked geomdl. Sorry for the

1/14/21

Andras Lasso, Onur Bingol4

1/14/21

Specify trimming curve in 3D space

Thanks for sharing the code, Andras! Onur R. Bingol, PhD con...@onurbingol.net | https://onurbingol.

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Specify trimming curve in 3D space

Thanks for sharing the code, Andras! Onur R. Bingol, PhD con...@onurbingol.net | https://onurbingol.

1/14/21

John Walmsley, Onur Bingol2

11/16/20

Plot data on NURBS Surface

Hello John, This sounds more like a Matplotlib-related question if I understand it correctly. The

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Plot data on NURBS Surface

Hello John, This sounds more like a Matplotlib-related question if I understand it correctly. The

11/16/20

Mulle, Onur Bingol2

9/22/20

Quadrilateral mesh to NURBS

Currently, there is no (any type of) mesh to NURBS converting functionality included in the library.

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Quadrilateral mesh to NURBS

Currently, there is no (any type of) mesh to NURBS converting functionality included in the library.

9/22/20

8/11/20

Speeding up interpolate_curve with 1500 to 3000 points.

Hello all. Let me start with "I am in WAY over my head here". Please bare that in mind when

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Speeding up interpolate_curve with 1500 to 3000 points.

Hello all. Let me start with "I am in WAY over my head here". Please bare that in mind when

8/11/20

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