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void glFillPolygon(int n, int x1, int y1, int x2,
int y2, ...);
Fills a polygon in the LCD page buffer and on the LCD if the buffer is unlocked. Any portion of the
polygon that is outside the LCD display area will be clipped. If fewer than 3 vertices are specified, the
function will return without doing anything.
PARAMETERS
n is the number of vertices.
x1 is the x coordinate of the first vertex.
y1 is the y coordinate of the first vertex.
x2 is the x coordinate of the second vertex.
y2 is the y coordinate of the second vertex.
... are the coordinates of additional vertices.
RETURN VALUE
None.
SEE ALSO
glFillVPolygon, glPlotPolygon, glPlotVPolygon
void glPlotCircle(int xc, int yc, int rad);
Draws the outline of a circle in the LCD page buffer and on the LCD if the buffer is unlocked. Any por-
tion 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 center of the circle (in pixels).
RETURN VALUE
None.
SEE ALSO
glFillCircle, glPlotPolygon, glFillPolygon
void glFillCircle(int xc, int yc, int rad);
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 center of the circle (in pixels).
RETURN VALUE
None.
SEE ALSO
glPlotCircle, glPlotPolygon, glFillPolygon
User ’s Manual
113
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