
GeoBASIC Reference Manual
6. System Functions
TPS1100-Version 2.10
6-51
6.1.31 MMI_DrawCircle
Description
Draw a circle / ellipse.
Declaration
MMI_DrawCircle(
BYVAL iX
AS Integer,
BYVAL iY
AS Integer,
BYVAL iRx
AS Integer,
BYVAL iRy
AS Integer,
BYVAL iBrush AS Integer,
BYVAL iPen
AS Integer )
Remarks
This function draws a circle in the graphic field, using the radius
iRx
, the fill-style
iBrush
, and the line-style
iPen
, as long as
iRx
=
iRy
. Otherwise, an ellipse is drawn, where
iRx
and
iRy
are the lengths of the perpendicular radii.
Note
A graphics dialog has to be set up before.
Parameters
iX
in
x-co-ordinate at the centre of the circle/ellipse
[pixel]
iY
in
y-co-ordinate at the centre of the circle/ellipse
[pixel]
iRx
in
Radius of the circle, horizontal radius [pixel]
iRy
in
Radius of the circle, vertical radius [pixel]
iBrush
in
Fill-style for the rectangle; possible values:
MMI_BRUSH_WHITE
MMI_BRUSH_BLACK
MMI_NO_BRUSH
iPen
in
Line-style; possible values:
MMI_PEN_WHITE
MMI_PEN_BLACK
MMI_PEN_DASHED
Содержание tps1100
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