mlib_GraphicsDrawEllipse(3MLIB) 										   mlib_GraphicsDrawEllipse(3MLIB)

NAME

       mlib_GraphicsDrawEllipse,    mlib_GraphicsDrawEllipse_8,    mlib_GraphicsDrawEllipse_32,    mlib_GraphicsDrawEllipse_X_8,    mlib_Graphics-
       DrawEllipse_X_32, mlib_GraphicsDrawEllipse_A_8, mlib_GraphicsDrawEllipse_A_32, mlib_GraphicsDrawEllipse_B_8, mlib_GraphicsDrawEllipse_B_32,
       mlib_GraphicsDrawEllipse_AB_8, mlib_GraphicsDrawEllipse_AB_32 - draw ellipse

SYNOPSIS

       cc [ flag... ] file... -lmlib [ library... ]
       #include <mlib.h>

       mlib_status mlib_GraphicsDrawEllipse_8(mlib_image *buffer, mlib_s16 x, mlib_s16 y, mlib_s32 a, mlib_s32 b, mlib_f32 t, mlib_s32 c);

       mlib_status mlib_GraphicsDrawEllipse_32(mlib_image *buffer, mlib_s16 x, mlib_s16 y, mlib_s32 a, mlib_s32 b, mlib_f32 t, mlib_s32 c);

       mlib_status  mlib_GraphicsDrawEllipse_X_8(mlib_image  *buffer,  mlib_s16  x,  mlib_s16  y,  mlib_s32 a, mlib_s32 b, mlib_f32 t, mlib_s32 c,
       mlib_s32 c2);

       mlib_status mlib_GraphicsDrawEllipse_X_32(mlib_image *buffer, mlib_s16 x, mlib_s16 y, mlib_s32 a,  mlib_s32  b,	mlib_f32  t,  mlib_s32	c,
       mlib_s32 c2);

       mlib_status mlib_GraphicsDrawEllipse_A_8(mlib_image *buffer, mlib_s16 x, mlib_s16 y, mlib_s32 a, mlib_s32 b, mlib_f32 t, mlib_s32 c);

       mlib_status mlib_GraphicsDrawEllipse_A_32(mlib_image *buffer, mlib_s16 x, mlib_s16 y, mlib_s32 a, mlib_s32 b, mlib_f32 t, mlib_s32 c);

       mlib_status  mlib_GraphicsDrawEllipse_B_8(mlib_image  *buffer,  mlib_s16  x,  mlib_s16  y,  mlib_s32 a, mlib_s32 b, mlib_f32 t, mlib_s32 c,
       mlib_s32 alpha);

       mlib_status mlib_GraphicsDrawEllipse_B_32(mlib_image *buffer, mlib_s16 x, mlib_s16 y, mlib_s32 a,  mlib_s32  b,	mlib_f32  t,  mlib_s32	c,
       mlib_s32 alpha);

       mlib_status  mlib_GraphicsDrawEllipse_AB_8(mlib_image  *buffer,	mlib_s16  x,  mlib_s16	y, mlib_s32 a, mlib_s32 b, mlib_f32 t, mlib_s32 c,
       mlib_s32 alpha);

       mlib_status mlib_GraphicsDrawEllipse_AB_32(mlib_image *buffer, mlib_s16 x, mlib_s16 y, mlib_s32 a, mlib_s32  b,	mlib_f32  t,  mlib_s32	c,
       mlib_s32 alpha);

       Each of the mlib_GraphicsDrawEllipse_*() functions draws an ellipse with the center at (x, y), major semiaxis a, and minor semiaxis b.  The
       angle of the major semiaxis is t counterclockwise from the X axis.

       Each of the mlib_GraphicsDrawEllipse_X_*() functions draws an ellipse in Xor mode as follows:

	   data[x,y] ^= c ^ c2

       Each of the mlib_GraphicsDrawEllipse_A_*() functions draws an ellipse with antialiasing.

       Each of the mlib_GraphicsDrawEllipse_B_*() functions draws an ellipse with alpha blending as follows:

	   data[x,y] = (data[x,y] * (255 - alpha) + c * alpha) / 255

       Each of the mlib_GraphicsDrawEllipse_A_*() functions draws an ellipse with antialiasing and alpha blending.

       Each of the functions takes some of the following arguments:

       buffer	       Pointer to the image into which the function is drawing.

       x	       X coordinate of the center.

       y	       Y coordinate of the center.

       a	       Major semiaxis of the ellipse.

       b	       Minor semiaxis of the ellipse.

       t	       Angle of major semiaxis in radians.

       c	       Color used in the drawing.

       c2	       Alternation color.

       alpha	       Alpha value for blending.  0 <= alpha <= 255.

       Each of the functions returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

       mlib_GraphicsDrawArc(3MLIB), mlib_GraphicsDrawCircle(3MLIB), attributes(5)

								    3 Mar 2005					   mlib_GraphicsDrawEllipse(3MLIB)