Rabbit OP7100 User Manual download pdf (Page 89)

User’s Manual 83

Draws a circle in the LCD page buffer, and on the LCD if the buffer is unlocked.

Any portion of the circle that is outside the LCD display area will be clipped.

PARAMETERS

xc is the x coordinate of the center of the circle

yc is the y coordinate of the center of the circle

rad is the radius of the circle (in pixels)

SEE ALSO

glFillCircle, glPlotPolygon, glFillPolygon

Draws a filled circle in the LCD page buffer, and on the LCD if the buffer is unlocked.

Any portion of the circle that is outside the LCD display area will be clipped.

PARAMETERS

xc is the x coordinate of the center of the circle

yc is the y coordinate of the center of the circle

rad is the radius of the circle (in pixels)

SEE ALSO

glPlotCircle, glPlotPolygon, glFillPolygon

Initializes the font descriptor structure, where the font is stored in xmem. Each font character's bitmap is

column-major and byte-aligned.

PARAMETERS

pInfo is a pointer to the font descriptor to be initialized

pixWidth is the width of each font item (in pixels)

pixHeight is the height of each font item (in pixels)

startChar is the value of the first printable character in the font character set

endChar is the value of the last printable character in the font character set

xmemBuffer is an xmem address of the pointer to a linear array of font bitmaps

SEE ALSO

glPrinf

void glPlotCircle(int xc, int yc, int rad);

void glFillCircle(int xc, int yc, int rad);

void glXFontInit(fontInfo *pInfo, char pixWidth,

char pixHeight, unsigned startChar, unsigned

endChar, unsigned long xmemBuffer);

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