[Qt-interest] Rotation of a graphicsItem

[Sujan Dasmahapatra]

I want my graphicsitem to rotate with respect to the scene
coordinate...its rotating with respect to its local coordinate...Please
tell me in detail how would implement it.

 

Kind regards, 
Sujan Dasmahapatra
  

From: Chandru... [mailto:sekarwagmare at gmail.com] 
Sent: Monday, June 29, 2009 2:56 PM
To: Sujan Dasmahapatra
Cc: qt-interest at trolltech.com
Subject: Re: [Qt-interest] Rotation of a graphicsItem

 


see mapToGlobal , 

QPointF QGraphicsItem::mapToScene ( const QPointF & point ) const


this will help .. 



On Mon, Jun 29, 2009 at 2:51 PM, Sujan Dasmahapatra
<sdh at lmglasfiber.com> wrote:

Dear Friends

For rotating a graphicsitem about an  arbitrary point(x,y)

I am doing like this

 

geometry->translate(xc,yc);

geometry->rotate(angle);

geometry->translate(-xc,-yc);

 

but its rotating about the point on the graphicsitem itself I want to
roate it with respect to view coordinate system.what I am doing wrong
here.

 

Kind regards, 
LM Glasfiber R&D (India) Pvt. Ltd.
 
Sujan Dasmahapatra
Project Engineer - CFD
  
Telephone: +91 80 66470248 
Mobile: 
E-mail: sdh at lmglasfiber.com 

 

 

 

 

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