逐步完成前后端服务器

frontend/node_modules/zrender/lib/canvas/dashStyle.js

@@ -0,0 +1,27 @@
+import { isArray, isNumber, map } from '../core/util.js';
+export function normalizeLineDash(lineType, lineWidth) {
+    if (!lineType || lineType === 'solid' || !(lineWidth > 0)) {
+        return null;
+    }
+    return lineType === 'dashed'
+        ? [4 * lineWidth, 2 * lineWidth]
+        : lineType === 'dotted'
+            ? [lineWidth]
+            : isNumber(lineType)
+                ? [lineType] : isArray(lineType) ? lineType : null;
+}
+export function getLineDash(el) {
+    var style = el.style;
+    var lineDash = style.lineDash && style.lineWidth > 0 && normalizeLineDash(style.lineDash, style.lineWidth);
+    var lineDashOffset = style.lineDashOffset;
+    if (lineDash) {
+        var lineScale_1 = (style.strokeNoScale && el.getLineScale) ? el.getLineScale() : 1;
+        if (lineScale_1 && lineScale_1 !== 1) {
+            lineDash = map(lineDash, function (rawVal) {
+                return rawVal / lineScale_1;
+            });
+            lineDashOffset /= lineScale_1;
+        }
+    }
+    return [lineDash, lineDashOffset];
+}