First commit.

Signed-off-by: Chen Xiao <abigwc@gmail.com>
2026-05-08 14:43:16 +08:00
commit 0b64e2de94
10989 changed files with 2253791 additions and 0 deletions
@@ -0,0 +1,45 @@
+import {tau} from "../math.js";
+import noop from "../noop.js";
+
+export default function PathContext(context) {
+  this._context = context;
+}
+
+PathContext.prototype = {
+  _radius: 4.5,
+  pointRadius: function(_) {
+    return this._radius = _, this;
+  },
+  polygonStart: function() {
+    this._line = 0;
+  },
+  polygonEnd: function() {
+    this._line = NaN;
+  },
+  lineStart: function() {
+    this._point = 0;
+  },
+  lineEnd: function() {
+    if (this._line === 0) this._context.closePath();
+    this._point = NaN;
+  },
+  point: function(x, y) {
+    switch (this._point) {
+      case 0: {
+        this._context.moveTo(x, y);
+        this._point = 1;
+        break;
+      }
+      case 1: {
+        this._context.lineTo(x, y);
+        break;
+      }
+      default: {
+        this._context.moveTo(x + this._radius, y);
+        this._context.arc(x, y, this._radius, 0, tau);
+        break;
+      }
+    }
+  },
+  result: noop
+};