From 3f872fc931f17244aec542c9e0d6eb1a61bddf05 Mon Sep 17 00:00:00 2001
From: Pierre Joye <pierre.php@gmail.com>
Date: Sun, 23 Jan 2022 11:56:41 +0700
Subject: #792, document gdImageEllipse (#803)

---
 src/gd.c | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

diff --git a/src/gd.c b/src/gd.c
index 0be8aad..d78504e 100644
--- a/src/gd.c
+++ b/src/gd.c
@@ -2187,9 +2187,28 @@ BGD_DECLARE(void) gdImageFilledArc (gdImagePtr im, int cx, int cy, int w, int h,
 	}
 }
 
+
 /*
-	Function: gdImageEllipse
-*/
+ * Function: gdImageEllipse
+ *
+ * Draw an ellipse, stroke only.
+ *
+ * Note:
+ *   This function does not support <gdImageSetThickness>. GD 3.0 supports actual 2D vectors
+ *   operation, you may rely on it if you need better 2D drawing operations.
+ *
+ * Parameters:
+ *   im   - The destination image.
+ *   src  - The source image.
+ *   mx   - x-coordinate of the center.
+ *   my   - y-coordinate of the center.
+ *   w    - The ellipse width.
+ *   h    - The ellipse height.
+ *   c    - The color of the ellipse. A color identifier created with one of the image color allocate functions.
+ *
+ * See also:
+ *   - <gdImageFilledEllipse>
+ */
 BGD_DECLARE(void) gdImageEllipse(gdImagePtr im, int mx, int my, int w, int h, int c)
 {
 	int x=0,mx1=0,mx2=0,my1=0,my2=0;
-- 
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