1mlib_GraphicsDrawArc(3MLIB)mediaLib Library Functionsmlib_GraphicsDrawArc(3MLIB)
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NAME

6       mlib_GraphicsDrawArc,  mlib_GraphicsDrawArc_8, mlib_GraphicsDrawArc_32,
7       mlib_GraphicsDrawArc_X_8,   mlib_GraphicsDrawArc_X_32,   mlib_Graphics‐
8       DrawArc_A_8,    mlib_GraphicsDrawArc_A_32,    mlib_GraphicsDrawArc_B_8,
9       mlib_GraphicsDrawArc_B_32,  mlib_GraphicsDrawArc_AB_8,   mlib_Graphics‐
10       DrawArc_AB_32 - draw arc
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SYNOPSIS

13       cc [ flag... ] file... -lmlib [ library... ]
14       #include <mlib.h>
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16       mlib_status mlib_GraphicsDrawArc_8(mlib_image *buffer, mlib_s16 x,
17            mlib_s16 y, mlib_s32 r, mlib_f32 t1, mlib_f32 t2, mlib_s32 c);
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20       mlib_status mlib_GraphicsDrawArc_32(mlib_image *buffer, mlib_s16 x,
21            mlib_s16 y, mlib_s32 r, mlib_f32 t1, mlib_f32 t2, mlib_s32 c);
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24       mlib_status mlib_GraphicsDrawArc_X_8(mlib_image *buffer, mlib_s16 x,
25            mlib_s16 y, mlib_s32 r, mlib_f32 t1, mlib_f32 t2, mlib_s32 c,
26            mlib_s32 c2);
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29       mlib_status mlib_GraphicsDrawArc_X_32(mlib_image *buffer, mlib_s16 x,
30            mlib_s16 y, mlib_s32 r, mlib_f32 t1, mlib_f32 t2, mlib_s32 c,
31            mlib_s32 c2);
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34       mlib_status mlib_GraphicsDrawArc_A_8(mlib_image *buffer, mlib_s16 x,
35            mlib_s16 y, mlib_s32 r, mlib_f32 t1, mlib_f32 t2, mlib_s32 c);
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38       mlib_status mlib_GraphicsDrawArc_A_32(mlib_image *buffer, mlib_s16 x,
39            mlib_s16 y, mlib_s32 r, mlib_f32 t1, mlib_f32 t2, mlib_s32 c);
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42       mlib_status mlib_GraphicsDrawArc_B_8(mlib_image *buffer, mlib_s16 x,
43            mlib_s16 y, mlib_s32 r, mlib_f32 t1, mlib_f32 t2, mlib_s32 c,
44            mlib_s32 a);
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47       mlib_status mlib_GraphicsDrawArc_B_32(mlib_image *buffer, mlib_s16 x,
48            mlib_s16 y, mlib_s32 r, mlib_f32 t1, mlib_f32 t2, mlib_s32 c,
49            mlib_s32 a);
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52       mlib_status mlib_GraphicsDrawArc_AB_8(mlib_image *buffer, mlib_s16 x,
53            mlib_s16 y, mlib_s32 r, mlib_f32 t1, mlib_f32 t2, mlib_s32 c,
54            mlib_s32 a);
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57       mlib_status mlib_GraphicsDrawArc_AB_32(mlib_image *buffer, mlib_s16 x,
58            mlib_s16 y, mlib_s32 r, mlib_f32 t1, mlib_f32 t2, mlib_s32 c,
59            mlib_s32 a);
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DESCRIPTION

63       Each  of  the  mlib_GraphicsDrawArc_*() functions draws an arc with the
64       center at (x, y), radius r, start angle t1, and end angle t2.
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67       Each of the mlib_GraphicsDrawArc_X_*() functions draws an  arc  in  Xor
68       mode as follows:
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70             data[x,y] ^= c ^ c2
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74       Each  of  the  mlib_GraphicsDrawArc_A_*()  functions  draws an arc with
75       antialiasing.
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78       Each of the mlib_GraphicsDrawArc_B_*()  functions  draws  an  arc  with
79       alpha blending as follows:
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81             data[x,y] = (data[x,y] * (255 - a) + c * a) / 255
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85       Each  of  the  mlib_GraphicsDrawArc_AB_*()  functions draws an arc with
86       antialiasing and alpha blending.
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PARAMETERS

89       Each of the functions takes some of the following arguments:
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91       buffer    Pointer to the image into which the function is drawing.
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94       x         X coordinate of the center.
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97       y         Y coordinate of the center.
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100       r         Radius of the arc.
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103       t1        Start angle of the arc in radians.
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106       t2        End angle of the arc in radians.
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109       c         Color used in the drawing.
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112       c2        Alternation color.
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115       a         Alpha value for blending. 0 ≤ a ≤ 255.
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RETURN VALUES

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

123       See attributes(5) for descriptions of the following attributes:
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128       ┌─────────────────────────────┬─────────────────────────────┐
129       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
130       ├─────────────────────────────┼─────────────────────────────┤
131       │Interface Stability          │Committed                    │
132       ├─────────────────────────────┼─────────────────────────────┤
133       │MT-Level                     │MT-Safe                      │
134       └─────────────────────────────┴─────────────────────────────┘
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SEE ALSO

137       mlib_GraphicsDrawCircle(3MLIB),        mlib_GraphicsDrawEllipse(3MLIB),
138       attributes(5)
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142SunOS 5.11                        2 Mar 2007       mlib_GraphicsDrawArc(3MLIB)