djsundog/circuitpython
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

fixing algorithm and MAX

Browse Source
This commit is contained in:
jposada202020 2023-03-30 18:08:17 -04:00
parent 4986ad6d6b
commit 1931b6c042
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
shared-module/bitmaptools/__init__.c
View File

@ -934,7 +934,7 @@ STATIC void draw_circle(displayio_bitmap_t *destination,
x = MIN(x, destination->width);
x = MAX(0, x);
y = MIN(y, destination->height);
y = MIN(0, y);
y = MAX(0, y);
BITMAP_DEBUG("x, y, radius (%4d, %4d, %4d)\n", x, y, radius);
@ -942,7 +942,7 @@ STATIC void draw_circle(displayio_bitmap_t *destination,
d = 3 - 2 * radius;
// Bresenham's circle algorithm
for (int xb = 0; x <= yb; xb++) {
for (int xb = 0; xb <= yb; xb++) {
displayio_bitmap_write_pixel(destination, xb + x, yb + y, value);
displayio_bitmap_write_pixel(destination, -xb + x, -yb + y, value);
displayio_bitmap_write_pixel(destination, -xb + x, yb + y, value);