mlib_GraphicsDrawEllipse(3mediaLib Library Funcmlib_GraphicsDrawEllipse(3MLIB)NAME
mlib_GraphicsDrawEllipse, mlib_GraphicsDrawEllipse_8, mlib_Graphics‐
DrawEllipse_32, mlib_GraphicsDrawEllipse_X_8, mlib_Graphics‐
DrawEllipse_X_32, mlib_GraphicsDrawEllipse_A_8, mlib_Graphics‐
DrawEllipse_A_32, mlib_GraphicsDrawEllipse_B_8, mlib_Graphics‐
DrawEllipse_B_32, mlib_GraphicsDrawEllipse_AB_8, mlib_Graphics‐
DrawEllipse_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);
DESCRIPTION
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.
PARAMETERS
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.
RETURN VALUES
Each of the functions returns MLIB_SUCCESS if successful. Otherwise it
returns MLIB_FAILURE.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Interface Stability │Committed │
├─────────────────────────────┼─────────────────────────────┤
│MT-Level │MT-Safe │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOmlib_GraphicsDrawArc(3MLIB), mlib_GraphicsDrawCircle(3MLIB),
attributes(5)SunOS 5.10 2 Mar 2007 mlib_GraphicsDrawEllipse(3MLIB)
