Initial Vibe coded project

flight_map/lettering.py

@@ -0,0 +1,71 @@
+"""Small original single-stroke alphabet; coordinates use a 4 by 6 grid."""
+
+import unicodedata
+
+from shapely.geometry import LineString
+
+GLYPHS = {
+    "A": ["06 20 46", "14 34"],
+    "B": ["06 00 30 41 32 02", "32 44 35 06"],
+    "C": ["40 10 01 05 16 46"],
+    "D": ["06 00 20 41 45 26 06"],
+    "E": ["40 00 06 46", "03 33"],
+    "F": ["06 00 40", "03 33"],
+    "G": ["40 10 01 05 16 46 43 23"],
+    "H": ["00 06", "40 46", "03 43"],
+    "I": ["00 40", "20 26", "06 46"],
+    "J": ["00 40 45 36 16 05"],
+    "K": ["00 06", "40 03 46"],
+    "L": ["00 06 46"],
+    "M": ["06 00 23 40 46"],
+    "N": ["06 00 46 40"],
+    "O": ["10 30 41 45 36 16 05 01 10"],
+    "P": ["06 00 30 41 32 02"],
+    "Q": ["10 30 41 45 36 16 05 01 10", "24 46"],
+    "R": ["06 00 30 41 32 02", "22 46"],
+    "S": ["40 10 01 12 33 44 35 06"],
+    "T": ["00 40", "20 26"],
+    "U": ["00 05 16 36 45 40"],
+    "V": ["00 26 40"],
+    "W": ["00 16 23 36 40"],
+    "X": ["00 46", "40 06"],
+    "Y": ["00 23 40", "23 26"],
+    "Z": ["00 40 06 46"],
+    "0": ["10 30 41 45 36 16 05 01 10", "05 41"],
+    "1": ["02 20 26", "06 46"],
+    "2": ["01 10 30 41 32 06 46"],
+    "3": ["00 30 41 22 43 45 36 06"],
+    "4": ["00 03 43", "40 46"],
+    "5": ["40 00 03 33 44 35 06"],
+    "6": ["40 10 01 05 16 36 45 34 03"],
+    "7": ["00 40 16"],
+    "8": ["12 01 10 30 41 32 12 03 05 16 36 45 43 32"],
+    "9": ["43 12 01 10 30 41 45 36 06"],
+    "-": ["03 43"],
+    ".": ["25 26"],
+    ",": ["25 16"],
+    ":": ["21 22", "24 25"],
+    "/": ["06 40"],
+    "(": ["30 11 15 36"],
+    ")": ["10 31 35 16"],
+    "?": ["01 10 30 41 32 23 24", "25 26"],
+    "+": ["03 43", "20 26"],
+    "=": ["02 42", "04 44"],
+    "'": ["20 21"],
+    " ": [],
+}
+
+
+def lettering(text: str, x: float, y: float, height: float) -> list[LineString]:
+    text = unicodedata.normalize("NFKD", text).upper()
+    result = []
+    for index, character in enumerate(text):
+        if character not in GLYPHS:
+            raise ValueError(f"Unsupported stroke lettering character: {character!r}")
+        for stroke in GLYPHS[character]:
+            points = [
+                (x + index * height + int(p[0]) * height / 6, y + int(p[1]) * height / 6)
+                for p in stroke.split()
+            ]
+            result.append(LineString(points))
+    return result