bugDotGNU Portable.NET - Bugs: bug #11437, Matrix: Invert, wrong computation

 
 

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bug #11437: Matrix: Invert, wrong computation

Submitted by:  Marco Bosatta <mboss>
Submitted on:  Wed 29 Dec 2004 01:53:22 PM UTC  
 
Category: NoneSeverity: 3 - Normal
Item Group: NoneStatus: Fixed
Privacy: PublicAssigned to: None
Open/Closed: Closed

Tue 04 Jan 2005 10:46:50 PM UTC, comment #1:

Patch #3616 applied to CVS 05.Jan.05

Deryk Robosson <drobosson>
Project Member
Wed 29 Dec 2004 01:53:22 PM UTC, original submission:

computation of the inverse in class Matrix.cs
(System.Drawing/Drawing2D) is wrong, in
method: public void Invert()

The coefficients dx, dy should be computed to:
dx = (m21dy-m22dx) / determinant ;
dy = (m12dx-m11dy) / determinant ;

Marco Bosatta <mboss>

 

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Follow 2 latest changes.

Date Changed By Updated Field Previous Value => Replaced By
Tue 04 Jan 2005 10:46:50 PM UTCdrobossonStatusNone=>Fixed
  Open/ClosedOpen=>Closed

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