Geometric Shape Definitions

Note

How the rect width is determined:

template <typename Type>
inline Type TRect<Type>::getWidth () const
{ return right - left; }

Shape 1

Code

Rect r (1, 1, 9, 9);
// r.getWidth () == 8
IGraphics::fillRect (r, brush)
IGraphicsPath::addRect (r)
QuartzPath::fill (device, brush)

// same area for:
// IGraphics::addClip (r)

Resulting Bitmap

1 pixel per point, with aliasing	1 pixel per point, without aliasing

Shape 2

Code

Rect r (1, 1, 9, 9);
Pen pen (Colors::kRed, 1.0f);
IGraphics::drawRect (r, pen);
IGraphicsPath::addRect (r);
QuartzPath::draw (device, pen);

// for every path, draw with stroke 1 and
// fill must have same outline

Resulting Bitmap

1 pixel per point, with aliasing	1 pixel per point, without aliasing

Shape 3

Code

Rect r (1, 1, 9, 9);
Pen pen (Colors::kRed, 2.0f);
IGraphics::drawRect (r, pen);
IGraphicsPath::addRect (r);
QuartzPath::draw (device, pen);

Resulting Bitmap

1 pixel per point, with aliasing	1 pixel per point, without aliasing

Shape 4

Code

Point p1 (0, 1);
Point p2 (10, 1);
Pen pen (Colors::kRed, 1.0f);
IGraphics::drawLine (p1, p2, pen);
QuartzPath::addLine (p1, p2);
QuartzPath::draw (device, pen);

Resulting Bitmap

1 pixel per point, with aliasing	1 pixel per point, without aliasing

Shape 5

Code

Point p1 (0, 1);
Point p2 (10, 1);
Pen pen (Colors::kRed, 2.0f);
IGraphics::drawLine (p1, p2, pen);
QuartzPath::addLine (p1, p2);
QuartzPath::draw (device, pen);

// So addRect looks different than adding
// the four sides consecutively to a path

Resulting Bitmap

1 pixel per point, with aliasing	1 pixel per point, without aliasing

Shape 6

Code

Point p1 (0, 1);
Point p2 (10 ,1);
Pen pen (Colors::kRed, 3.0f);
IGraphics::drawLine (p1, p2, pen);
QuartzPath::addLine (p1, p2);
QuartzPath::draw (device, pen);

Resulting Bitmap

1 pixel per point, with aliasing	1 pixel per point, without aliasing

Shape 7

Code

Rect r (1, 1, 9, 9);
Pen pen (Colors::kRed, 1.0f);
QuartzPath::addRoundRect (rect, 1, 1);
QuartzPath::draw (device, pen);

Resulting Bitmap (arcs not shown)

1 pixel per point, with aliasing	1 pixel per point, without aliasing

Shape 8

Code

Rect r (1, 1, 9, 9);
Pen pen (Colors::kRed, 1.0f);
QuartzPath::addRoundRect (rect, 2, 2);
QuartzPath::draw (device, pen);

Resulting Bitmap (arcs not shown)

1 pixel per point, with aliasing	1 pixel per point, without aliasing