[jira] [Commented] (MATH-1650) Add clamped spline interpolation

2022-11-03 Thread Michael Scholz (Jira)


[ 
https://issues.apache.org/jira/browse/MATH-1650?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17628306#comment-17628306
 ] 

Michael Scholz commented on MATH-1650:
--

Thanks Gilles for your feedback! My initial thought was to sketch this new 
class in order to get a general first feedback if this approach is viable from 
the design perspective (subclass with overloaded {{interpolate()}} function). 
If it complies with your expectations, I can start working on tests :)

> Add clamped spline interpolation
> 
>
> Key: MATH-1650
> URL: https://issues.apache.org/jira/browse/MATH-1650
> Project: Commons Math
>  Issue Type: New Feature
>Affects Versions: 4.X
>Reporter: Michael Scholz
>Priority: Minor
>  Labels: Polynomials, interpolation, spline
> Attachments: 2022-10-05_ClampedSplineInterpolator.patch
>
>
> We would like to contribute a new _clamped_ spline interpolation function in 
> addition to the already available unclamped spline function. Our new 
> {{ClampedSplineInterpolator}} is based on the same textbook as the original 
> {{{}SplineInterpolator{}}}. The clamped spline offers additional 
> parameterisation of starting and ending slopes (1st derivatives) as boundary 
> conditions in order to provide more flexibility in spline creation.
> In this patch we follow the approach of subclassing the original 
> {{SplineInterpolator}} and simply overloading it's {{interpolate()}} function 
> by these two additional parameters. Is this an acceptable way or does the 
> community recommend a different design approach?
> After clarifying the basic implementation approach we could also supply 
> necessary tests etc. and finally contribute everything via ordinary GitHub 
> pull request.
> Refer to our post on the dev mailing list: 
> https://lists.apache.org/thread/34qnx4tgjbyv345lgmd57g0bnlnwdzc8
>  



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[jira] [Updated] (MATH-1650) Add clamped spline interpolation

2022-10-05 Thread Michael Scholz (Jira)


 [ 
https://issues.apache.org/jira/browse/MATH-1650?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Michael Scholz updated MATH-1650:
-
Description: 
We would like to contribute a new _clamped_ spline interpolation function in 
addition to the already available unclamped spline function. Our new 
{{ClampedSplineInterpolator}} is based on the same textbook as the original 
{{{}SplineInterpolator{}}}. The clamped spline offers additional 
parameterisation of starting and ending slopes (1st derivatives) as boundary 
conditions in order to provide more flexibility in spline creation.

In this patch we follow the approach of subclassing the original 
{{SplineInterpolator}} and simply overloading it's {{interpolate()}} function 
by these two additional parameters. Is this an acceptable way or does the 
community recommend a different design approach?

After clarifying the basic implementation approach we could also supply 
necessary tests etc. and finally contribute everything via ordinary GitHub pull 
request.

Refer to our post on the dev mailing list: 
https://lists.apache.org/thread/34qnx4tgjbyv345lgmd57g0bnlnwdzc8

 

  was:
We would like to contribute a new _clamped_ spline interpolation function in 
addition to the already available unclamped spline function. Our new 
{{ClampedSplineInterpolator}} is based on the same textbook as the original 
{{{}SplineInterpolator{}}}. The clamped spline offers additional 
parameterisation of starting and ending slopes (1st derivatives) as boundary 
conditions in order to provide more flexibility in spline creation.

In this patch we follow the approach of subclassing the original 
{{SplineInterpolator}} and simply overloading it's {{interpolate()}} function 
by these two additional parameters. Is this an acceptable way or does the 
community recommend a different design approach?

After clarifying the basic implementation approach we could also supply 
necessary tests etc. and finally contribute everything via ordinary GitHub pull 
request.

Refer to our post on the dev mailing list: 
[https://lists.apache.org/thread/34qnx4tgjbyv345lgmd57g0bnlnwdzc8|[https://lists.apache.org/thread/34qnx4tgjbyv345lgmd57g0bnlnwdzc8]]

 


> Add clamped spline interpolation
> 
>
> Key: MATH-1650
> URL: https://issues.apache.org/jira/browse/MATH-1650
> Project: Commons Math
>  Issue Type: New Feature
>Affects Versions: 4.X
>Reporter: Michael Scholz
>Priority: Minor
>  Labels: Polynomials, interpolation, spline
> Attachments: 2022-10-05_ClampedSplineInterpolator.patch
>
>
> We would like to contribute a new _clamped_ spline interpolation function in 
> addition to the already available unclamped spline function. Our new 
> {{ClampedSplineInterpolator}} is based on the same textbook as the original 
> {{{}SplineInterpolator{}}}. The clamped spline offers additional 
> parameterisation of starting and ending slopes (1st derivatives) as boundary 
> conditions in order to provide more flexibility in spline creation.
> In this patch we follow the approach of subclassing the original 
> {{SplineInterpolator}} and simply overloading it's {{interpolate()}} function 
> by these two additional parameters. Is this an acceptable way or does the 
> community recommend a different design approach?
> After clarifying the basic implementation approach we could also supply 
> necessary tests etc. and finally contribute everything via ordinary GitHub 
> pull request.
> Refer to our post on the dev mailing list: 
> https://lists.apache.org/thread/34qnx4tgjbyv345lgmd57g0bnlnwdzc8
>  



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[jira] [Created] (MATH-1650) Add clamped spline interpolation

2022-10-05 Thread Michael Scholz (Jira)
Michael Scholz created MATH-1650:


 Summary: Add clamped spline interpolation
 Key: MATH-1650
 URL: https://issues.apache.org/jira/browse/MATH-1650
 Project: Commons Math
  Issue Type: New Feature
Affects Versions: 4.X
Reporter: Michael Scholz
 Attachments: 2022-10-05_ClampedSplineInterpolator.patch

We would like to contribute a new _clamped_ spline interpolation function in 
addition to the already available unclamped spline function. Our new 
{{ClampedSplineInterpolator}} is based on the same textbook as the original 
{{{}SplineInterpolator{}}}. The clamped spline offers additional 
parameterisation of starting and ending slopes (1st derivatives) as boundary 
conditions in order to provide more flexibility in spline creation.

In this patch we follow the approach of subclassing the original 
{{SplineInterpolator}} and simply overloading it's {{interpolate()}} function 
by these two additional parameters. Is this an acceptable way or does the 
community recommend a different design approach?

After clarifying the basic implementation approach we could also supply 
necessary tests etc. and finally contribute everything via ordinary GitHub pull 
request.

Refer to our post on the dev mailing list: 
[https://lists.apache.org/thread/34qnx4tgjbyv345lgmd57g0bnlnwdzc8|[https://lists.apache.org/thread/34qnx4tgjbyv345lgmd57g0bnlnwdzc8]]

 



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