GFXARC
- draw an arc
|
Low-level graphics
(AFL 3.0) |
| SYNTAX |
GfxArc( x1, y1, x2, y2, x3, y3, x4, y4 ) |
| RETURNS |
NOTHING |
| FUNCTION |
Draws an elliptical arc. The arc drawn by using the function is a segment of the ellipse defined by the specified bounding rectangle.
The actual starting point of the arc is the point at which a ray drawn from the center of the bounding rectangle through the specified starting point intersects the ellipse. The actual ending point of the arc is the point at which a ray drawn from the center of the bounding rectangle through the specified ending point intersects the ellipse. The arc is drawn in a counterclockwise direction.
Parameters
- x1 - x-coordinate of the upper left corner of the bounding rectangle
- y1 - y-coordinate of the upper left corner of the bounding rectangle
- x2 - x-coordinate of the lower right corner of the bounding rectangle
- y2 - y-coordinate of the lower right corner of the bounding rectangle
- x3 - x-coordinate of the arc's starting point.
- y3 - y-coordinate of the arc's starting point.
- x4 - x-coordinate of the arc's ending point.
- y4 - y-coordinate of the arc's ending point.
NOTE: This is LOW-LEVEL graphic function. To learn more about low-level
graphic functions please read TUTORIAL: Using low-level graphics.
|
| EXAMPLE |
GfxSelectPen( colorRed );
GfxArc(100,0,200,100,150,0,200,50);
|
| SEE ALSO |
GfxChord() function , GfxPie() function , GfxSelectPen() function |
References:
The GfxArc function is used in the following formulas
in AFL on-line library:
|
