[#MATH-265] Utility methods for calculating the Euclidean distance between two points

Commons Math

Utility methods for calculating the Euclidean distance between two points

Created: 30/Apr/09 10:52 PM Updated: 07/Aug/09 09:14 AM

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Component/s:

None

Affects Version/s:

None

Fix Version/s:

2.0

Time Tracking:

Not Specified

File Attachments:

File Name	Date Attached	Attached By	Size
GeometryUtil.java	2009-04-30 10:53 PM	Benjamin McCann	0.9 kB
GeometryUtilTest.java	2009-04-30 10:53 PM	Benjamin McCann	0.3 kB

Resolution Date:

01/May/09 09:53 PM

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Benjamin McCann added a comment - 30/Apr/09 10:53 PM

I didn't see a method like this in Math Utils yet. It's pretty basic and helpful, so I think it would be beneficial.

Benjamin McCann made changes - 30/Apr/09 10:53 PM

Field	Original Value	New Value
Attachment		GeometryUtilTest.java [ 12406970 ]
Attachment		GeometryUtil.java [ 12406969 ]

Repository	Revision	Date	User	Message
ASF	#770798	Fri May 01 19:29:44 UTC 2009	luc	Added distance1, distance and distanceInf utility methods for double and int arrays in MathUtils JIRA: ~~MATH-265~~
				Files Changed
				MODIFY /commons/proper/math/trunk/src/java/org/apache/commons/math/util/MathUtils.java MODIFY /commons/proper/math/trunk/src/site/xdoc/changes.xml MODIFY /commons/proper/math/trunk/src/test/org/apache/commons/math/util/MathUtilsTest.java

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Luc Maisonobe added a comment - 01/May/09 09:53 PM

fixed in subversion repository as of r770798
The methods have been put in MathUtils instead of a dedicated GeometryUtil.
An error in the double version has been fixed (int sum instead of double sum).
In addition to the L2 (euclidean) distance, the L1 and Linf distances have also been added.
thanks for the report and for the patch

Luc Maisonobe made changes - 01/May/09 09:53 PM

Resolution		Fixed [ 1 ]
Assignee		Luc Maisonobe [ luc ]
Status	Open [ 1 ]	Resolved [ 5 ]

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Benjamin McCann added a comment - 02/May/09 12:47 AM

Thanks Luc.
(FYI, ~~MATH-266~~ made use of GeometryUtil, and will need just a minor tweak to MathUtils in order to compile.)

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Luc Maisonobe added a comment - 07/Aug/09 09:14 AM

closing resolved issue for 2.0 release

Luc Maisonobe made changes - 07/Aug/09 09:14 AM

Status

Resolved [ 5 ]

Closed [ 6 ]