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fix: canvas移到map容器外(同级节点)避免overflow:hidden裁剪

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canvas作为mapContainer的sibling插入到map之后,
z-index:99999确保在所有Leaflet图层之上

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
TianXuan Developer
2026-07-25 14:50:16 +08:00
parent 45034813ad
commit 51c0d5ad53
1 changed files with 10 additions and 6 deletions
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simple_analysis/templates/simple_analysis/simple_analysis.html
+10 -6
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@@ -2594,18 +2594,22 @@ function toggleTrafficPanel() {
function _ensureFlowCanvas() { function _ensureFlowCanvas() {
if (!SA.map) return null; if (!SA.map) return null;
const mapEl = SA.map.getContainer();
let c = document.getElementById(_trafficCanvasId); let c = document.getElementById(_trafficCanvasId);
if (!c) { if (!c) {
c = document.createElement('canvas'); c = document.createElement('canvas');
c.id = _trafficCanvasId; c.id = _trafficCanvasId;
c.style.cssText = 'position:absolute;top:0;left:0;pointer-events:none;z-index:10000;'; c.style.cssText = 'position:absolute;pointer-events:none;z-index:99999;';
SA.map.getContainer().appendChild(c); // Insert as sibling AFTER map container to stay on top
mapEl.parentNode.insertBefore(c, mapEl.nextSibling);
} }
const s = SA.map.getSize(); const s = SA.map.getSize();
if (c.width !== s.x || c.height !== s.y) { const mr = mapEl.getBoundingClientRect();
c.width = s.x; c.height = s.y; const pr = mapEl.parentNode.getBoundingClientRect();
c.style.width = s.x + 'px'; c.style.height = s.y + 'px'; c.width = s.x; c.height = s.y;
} c.style.width = s.x + 'px'; c.style.height = s.y + 'px';
c.style.left = (mr.left - pr.left) + 'px';
c.style.top = (mr.top - pr.top) + 'px';
return c; return c;
} }