Re: [Interest] Applying transformation

On Wed, Apr 5, 2017 at 5:35 PM, Igor Mironchik wrote: > But why it can be needed in 3D? > If the matrix is unitary (i.e. a rotation matrix), that's the inverse transform, but a general affine transformation is not unitary. In the common case it's just the application

Re: [Interest] Applying transformation

05.04.2017 17:02, Sean Harmer пишет: On Wednesday 05 April 2017 16:30:52 Igor Mironchik wrote: Hi, 05.04.2017 16:12, Sean Harmer пишет: On Wednesday 05 April 2017 15:55:48 Igor Mironchik wrote: Hello, Can I apply Qt3DCore::QTransform to the QVector3D? How can I calculate new QVector3D if

Re: [Interest] Applying transformation

Hi, But the same question as applied to 3D world, what the difference between 'M v' and 'v M'. I know that 'M v' applies transformation matrix to the vector. I understand it. And yes, I restored a little a gap in linear algebra. But I can't understand what 'v M' will give me in 3D world.

Re: [Interest] Applying transformation

On Wednesday 05 April 2017 16:30:52 Igor Mironchik wrote: > Hi, > > 05.04.2017 16:12, Sean Harmer пишет: > > On Wednesday 05 April 2017 15:55:48 Igor Mironchik wrote: > >> Hello, > >> > >> Can I apply Qt3DCore::QTransform to the QVector3D? > >> > >> How can I calculate new QVector3D if

Re: [Interest] Applying transformation

Hi, You are right. I fully forgot all this things. And now I'm trying to restore the gap. 05.04.2017 16:44, Oleg Evseev пишет: Hi, Igor. With all due respect, looking on your questions, it seems that you have huge knowledge gap in linear algebra. It would be wise to firstly read how

Re: [Interest] Applying transformation

Hi, Igor. With all due respect, looking on your questions, it seems that you have huge knowledge gap in linear algebra. It would be wise to firstly read how transformations can be represented by matrices: https://en.wikipedia.org/wiki/Transformation_matrix

Re: [Interest] Applying transformation

Hi, 05.04.2017 16:12, Sean Harmer пишет: On Wednesday 05 April 2017 15:55:48 Igor Mironchik wrote: Hello, Can I apply Qt3DCore::QTransform to the QVector3D? How can I calculate new QVector3D if Qt3DCore::QTransform will be applied to it, in other words? The transformation is stored in the

Re: [Interest] Applying transformation

Hi, 05.04.2017 16:12, Sean Harmer пишет: On Wednesday 05 April 2017 15:55:48 Igor Mironchik wrote: Hello, Can I apply Qt3DCore::QTransform to the QVector3D? How can I calculate new QVector3D if Qt3DCore::QTransform will be applied to it, in other words? The transformation is stored in the

Re: [Interest] Applying transformation

On Wednesday 05 April 2017 15:55:48 Igor Mironchik wrote: > Hello, > > Can I apply Qt3DCore::QTransform to the QVector3D? > > How can I calculate new QVector3D if Qt3DCore::QTransform will be > applied to it, in other words? The transformation is stored in the matrix property. Pre-multiply your

[Interest] Applying transformation

Hello, Can I apply Qt3DCore::QTransform to the QVector3D? How can I calculate new QVector3D if Qt3DCore::QTransform will be applied to it, in other words? ___ Interest mailing list Interest@qt-project.org