Initial commit of Roster

2025-06-28 01:12:46 -05:00
commit c23d3a7676
4367 changed files with 890519 additions and 0 deletions
@@ -0,0 +1,38 @@
+import math
+from typing import NamedTuple
+
+# For more details, see the PDF Reference, 6th Ed., Section 4.2.2 ("Common
+# Transformations")
+
+
+class CTM(NamedTuple):
+    a: float
+    b: float
+    c: float
+    d: float
+    e: float
+    f: float
+
+    @property
+    def scale_x(self) -> float:
+        return math.sqrt(pow(self.a, 2) + pow(self.b, 2))
+
+    @property
+    def scale_y(self) -> float:
+        return math.sqrt(pow(self.c, 2) + pow(self.d, 2))
+
+    @property
+    def skew_x(self) -> float:
+        return (math.atan2(self.d, self.c) * 180 / math.pi) - 90
+
+    @property
+    def skew_y(self) -> float:
+        return math.atan2(self.b, self.a) * 180 / math.pi
+
+    @property
+    def translation_x(self) -> float:
+        return self.e
+
+    @property
+    def translation_y(self) -> float:
+        return self.f