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fix(dashboard): center China map inset

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Aethersailor
2026-06-02 08:38:18 +08:00
parent 00cedaad11
commit 9c79951e0d
1 changed files with 33 additions and 4 deletions
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37
src/handler/dashboard_page.cpp
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@@ -58,6 +58,8 @@ std::string page(Request &, Response &response) {
--control-border: rgba(26, 32, 44, 0.12);
--map-stroke: rgba(255, 255, 255, 0.85);
--map-empty: #d7e1ec;
--china-inset-fill: #b9cce0;
--china-inset-stroke: rgba(30, 64, 175, 0.58);
--map-data-min: #93c5fd;
--map-data-mid: #2563eb;
--map-data-max: #1e3a8a;
@@ -90,6 +92,8 @@ std::string page(Request &, Response &response) {
--control-border: rgba(255, 255, 255, 0.16);
--map-stroke: rgba(2, 6, 23, 0.9);
--map-empty: #273449;
--china-inset-fill: #445f7a;
--china-inset-stroke: rgba(125, 211, 252, 0.72);
--map-data-min: #7dd3fc;
--map-data-mid: #38bdf8;
--map-data-max: #2563eb;
@@ -520,9 +524,10 @@ std::string page(Request &, Response &response) {
stroke-width: 1;
}
.china-south-sea {
fill: var(--map-empty);
stroke: var(--map-stroke);
stroke-width: 0.8;
fill: var(--china-inset-fill);
stroke: var(--china-inset-stroke);
stroke-width: 1.15;
vector-effect: non-scaling-stroke;
}
.china-region-label {
fill: var(--text-secondary);
@@ -1490,6 +1495,26 @@ std::string page(Request &, Response &response) {
geometry: rewindChinaGeometry(feature.geometry)
};
}
function fitChinaMainProjection(collection, centerCollection, width, height) {
var horizontalPad = Math.max(20, Math.min(34, width * 0.055));
var verticalPad = Math.max(22, Math.min(38, height * 0.08));
var projection = d3.geoMercator().fitExtent(
[[horizontalPad, verticalPad], [width - horizontalPad, height - verticalPad]],
collection);
var reference = centerCollection && centerCollection.features && centerCollection.features.length
? centerCollection : collection;
var path = d3.geoPath(projection);
var bounds = path.bounds(reference);
if (isFinite(bounds[0][1]) && isFinite(bounds[1][1])) {
var currentCenterY = (bounds[0][1] + bounds[1][1]) / 2;
var shiftY = height / 2 - currentCenterY;
var maxShift = height * 0.12;
shiftY = Math.max(-maxShift, Math.min(maxShift, shiftY));
var translate = projection.translate();
projection.translate([translate[0], translate[1] + shiftY]);
}
return projection;
}
function renderSouthChinaSeaInset(svg, features, width, height, colors, config, metricEn, metricZh) {
if (!features.length) return;
var insetWidth = Math.max(54, Math.min(74, width * 0.14));
@@ -1555,7 +1580,11 @@ std::string page(Request &, Response &response) {
var mainFeatures = features.filter(function (feature) { return !isSouthChinaSeaFeature(feature); });
var insetFeatures = features.filter(isSouthChinaSeaFeature);
var collection = { type: "FeatureCollection", features: mainFeatures.length ? mainFeatures : features };
var projection = d3.geoMercator().fitSize([width, height], collection);
var mainlandCenterFeatures = collection.features.filter(function (feature) {
return ["CN-TW", "CN-HK", "CN-MO"].indexOf(chinaFeatureCode(feature)) === -1;
});
var mainlandCenterCollection = { type: "FeatureCollection", features: mainlandCenterFeatures };
var projection = fitChinaMainProjection(collection, mainlandCenterCollection, width, height);
var path = d3.geoPath(projection);
svg.selectAll("path.china-region")
.data(collection.features)