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| author | Akshay Nair <phenax5@gmail.com> | 2026-06-03 23:57:21 +0530 |
|---|---|---|
| committer | Akshay Nair <phenax5@gmail.com> | 2026-06-03 23:57:21 +0530 |
| commit | ed4b84d2ca7e5b13d010effefb8ae676d084124a (patch) | |
| tree | 7aa142e52a3a2bd9e1d760dc8648e523d919dae7 /src/gradient.sql | |
| parent | 3be6325b1292233fae4817b3b864eca7b9911898 (diff) | |
| download | sqlite-creative-coding-ed4b84d2ca7e5b13d010effefb8ae676d084124a.tar.gz sqlite-creative-coding-ed4b84d2ca7e5b13d010effefb8ae676d084124a.zip | |
Refactor image.sh to handle png + cleanup sql
Diffstat (limited to 'src/gradient.sql')
| -rw-r--r-- | src/gradient.sql | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/src/gradient.sql b/src/gradient.sql index f04cdad..4ad1820 100644 --- a/src/gradient.sql +++ b/src/gradient.sql @@ -1,5 +1,4 @@ -DELETE FROM images WHERE id = 'gradient'; -INSERT INTO images (id, width, height) VALUES ('gradient', 200, 200) RETURNING id; +INSERT OR REPLACE INTO images (id, width, height) VALUES ('gradient', 400, 400) RETURNING id; WITH RECURSIVE image AS (SELECT * FROM images WHERE id = 'gradient'), @@ -8,5 +7,5 @@ WITH RECURSIVE vertical(y) AS (SELECT height FROM image UNION ALL SELECT y - 1 FROM vertical WHERE y > 1), _pixels(x, y, r, g, b) AS - (SELECT x, y, mod(x, 255), mod(y, 255), 100 FROM vertical, horizontal) + (SELECT x, y, x*255/width, y*255/height, 100 FROM vertical, horizontal, image) INSERT INTO pixels (image_id, x, y, r, g, b) SELECT 'gradient', x, y, r, g, b FROM _pixels; |