添加项目文件。

Epost.TestToolsWeb/Content/code/es-modules/parts-map/MapAxis.js

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+/**
+ * (c) 2010-2018 Torstein Honsi
+ *
+ * License: www.highcharts.com/license
+ */
+
+'use strict';
+
+import H from '../parts/Globals.js';
+import '../parts/Utilities.js';
+import '../parts/Axis.js';
+
+var addEvent = H.addEvent,
+    Axis = H.Axis,
+    pick = H.pick;
+
+// Override to use the extreme coordinates from the SVG shape, not the data
+// values
+addEvent(Axis, 'getSeriesExtremes', function () {
+    var xData = [];
+
+    // Remove the xData array and cache it locally so that the proceed method
+    // doesn't use it
+    if (this.isXAxis) {
+        this.series.forEach(function (series, i) {
+            if (series.useMapGeometry) {
+                xData[i] = series.xData;
+                series.xData = [];
+            }
+        });
+        this.seriesXData = xData;
+    }
+
+});
+
+addEvent(Axis, 'afterGetSeriesExtremes', function () {
+
+    var xData = this.seriesXData,
+        dataMin,
+        dataMax,
+        useMapGeometry;
+
+    // Run extremes logic for map and mapline
+    if (this.isXAxis) {
+        dataMin = pick(this.dataMin, Number.MAX_VALUE);
+        dataMax = pick(this.dataMax, -Number.MAX_VALUE);
+        this.series.forEach(function (series, i) {
+            if (series.useMapGeometry) {
+                dataMin = Math.min(dataMin, pick(series.minX, dataMin));
+                dataMax = Math.max(dataMax, pick(series.maxX, dataMax));
+                series.xData = xData[i]; // Reset xData array
+                useMapGeometry = true;
+            }
+        });
+        if (useMapGeometry) {
+            this.dataMin = dataMin;
+            this.dataMax = dataMax;
+        }
+
+        delete this.seriesXData;
+    }
+
+});
+
+// Override axis translation to make sure the aspect ratio is always kept
+addEvent(Axis, 'afterSetAxisTranslation', function () {
+    var chart = this.chart,
+        mapRatio,
+        plotRatio = chart.plotWidth / chart.plotHeight,
+        adjustedAxisLength,
+        xAxis = chart.xAxis[0],
+        padAxis,
+        fixTo,
+        fixDiff,
+        preserveAspectRatio;
+
+    // Check for map-like series
+    if (this.coll === 'yAxis' && xAxis.transA !== undefined) {
+        this.series.forEach(function (series) {
+            if (series.preserveAspectRatio) {
+                preserveAspectRatio = true;
+            }
+        });
+    }
+
+    // On Y axis, handle both
+    if (preserveAspectRatio) {
+
+        // Use the same translation for both axes
+        this.transA = xAxis.transA = Math.min(this.transA, xAxis.transA);
+
+        mapRatio = plotRatio /
+            ((xAxis.max - xAxis.min) / (this.max - this.min));
+
+        // What axis to pad to put the map in the middle
+        padAxis = mapRatio < 1 ? this : xAxis;
+
+        // Pad it
+        adjustedAxisLength = (padAxis.max - padAxis.min) * padAxis.transA;
+        padAxis.pixelPadding = padAxis.len - adjustedAxisLength;
+        padAxis.minPixelPadding = padAxis.pixelPadding / 2;
+
+        fixTo = padAxis.fixTo;
+        if (fixTo) {
+            fixDiff = fixTo[1] - padAxis.toValue(fixTo[0], true);
+            fixDiff *= padAxis.transA;
+            if (
+                Math.abs(fixDiff) > padAxis.minPixelPadding ||
+                (
+                    padAxis.min === padAxis.dataMin &&
+                    padAxis.max === padAxis.dataMax
+                )
+            ) { // zooming out again, keep within restricted area
+                fixDiff = 0;
+            }
+            padAxis.minPixelPadding -= fixDiff;
+        }
+    }
+});
+
+// Override Axis.render in order to delete the fixTo prop
+addEvent(Axis, 'render', function () {
+    this.fixTo = null;
+});