0001-Fix-math-used-to-compute-angles-of-horizontal-and-ve.patch

Sandro Santilli, 2011-01-24 11:40 AM

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src/core/symbology-ng/qgslinesymbollayerv2.cpp
626 626 
{
627 627 
  // return angle (in radians) between two points
628 628 
  if ( x1 == x2 )
629 
    return  M_PI *( y2 >= y1 ? 1 / 2 : 3 / 2 );  // angle is 90 or 270
629 
    return  M_PI * ( y2 >= y1 ? 1.0 / 2 : 3.0 / 2 );  // angle is 90 or 270
630 

  		




  
  631
  
    
  if ( y1 == y2 )

  		




  
  632
  
    
    return  M_PI * ( x2 >= x1 ? 0 : 1 );  // angle is 0 or 180

  		




  630
  633
  
    

  		




  631
  634
  
    
  double t = ( y2 - y1 ) / ( x2 - x1 );

  		




  632
  635
  
    
  if ( t >= 0 )

  		




  633
  
  
    
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