C++ (Cpp) ImpressionistDoc::getDirAngle Examples

Example #1

File: spBrush.cpp Project: ckiwun/Computer-Graphics

void ScatteredPointBrush::BrushMove( const Point source, const Point target )
{
	ImpressionistDoc* pDoc = GetDocument();
	ImpressionistUI* dlg=pDoc->m_pUI;

	if ( pDoc == NULL ) {
		printf( "PointBrush::BrushMove  document is NULL\n" );
		return;
	}

	int size = pDoc->getSize();
	float alpha = pDoc->getAlpha();
	int angle = pDoc->getAngle();
	if(dlg->getDirMode()==1)
		angle = pDoc->getDirAngle();

	float cos_angle,sin_angle;
	float rad_angle = (angle*PI)/180;
	
	cos_angle = cos(-rad_angle);
	sin_angle = sin(-rad_angle);

	glEnable(GL_BLEND);
	glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);

	float orig_x,orig_y,x,y;
	SetColor( source, alpha );
	glBegin( GL_POINTS );
		for(int i = 0;i<0.05*size*size;i++)
		while(true){
			orig_x=-(size/2)+size*frand();
			orig_y=-(size/2)+size*frand();
			x = orig_x*cos_angle-orig_y*sin_angle;
			y = orig_x*sin_angle+orig_y*cos_angle;
			glVertex2d( target.x+x, target.y+y );
			break;
		}
	glEnd();
}