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@@ -3616,24 +3616,26 @@ HTML_TEMPLATE = '''<!DOCTYPE html>
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const containerWidth = container.clientWidth;
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const containerWidth = container.clientWidth;
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const containerHeight = container.clientHeight;
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const containerHeight = container.clientHeight;
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- // 计算内容边界（三个圆的范围）
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- const minX = layerCenterX[0] - layerRadius[0] - 50;
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- const maxX = layerCenterX[0] + layerRadius[0] + 50;
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- const minY = layerCenterY[0] - layerRadius[0] - 30;
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- const maxY = layerCenterY[2] + layerRadius[2] + 30;
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-
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- const contentWidth = maxX - minX;
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- const contentHeight = maxY - minY;
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-
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- // 计算缩放比例（留出边距）
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- const padding = 20;
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- const scaleX = (containerWidth - padding * 2) / contentWidth;
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- const scaleY = (containerHeight - padding * 2) / contentHeight;
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+ // 使用getBBox获取g元素的实际边界（包含所有子元素）
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+ const gNode = g.node();
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+ if (!gNode) return;
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+
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+ const bbox = gNode.getBBox();
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+ if (bbox.width === 0 || bbox.height === 0) return;
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+
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+ // 添加边距
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+ const padding = 30;
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+ const contentWidth = bbox.width + padding * 2;
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+ const contentHeight = bbox.height + padding * 2;
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+
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+ // 计算缩放比例
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+ const scaleX = containerWidth / contentWidth;
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+ const scaleY = containerHeight / contentHeight;
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const scale = Math.min(scaleX, scaleY, 1); // 最大不超过1
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const scale = Math.min(scaleX, scaleY, 1); // 最大不超过1
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// 计算平移使内容居中
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// 计算平移使内容居中
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- const contentCenterX = (minX + maxX) / 2;
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- const contentCenterY = (minY + maxY) / 2;
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+ const contentCenterX = bbox.x + bbox.width / 2;
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+ const contentCenterY = bbox.y + bbox.height / 2;
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const translateX = containerWidth / 2 - contentCenterX * scale;
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const translateX = containerWidth / 2 - contentCenterX * scale;
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const translateY = containerHeight / 2 - contentCenterY * scale;
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const translateY = containerHeight / 2 - contentCenterY * scale;
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@@ -3641,8 +3643,8 @@ HTML_TEMPLATE = '''<!DOCTYPE html>
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svg.call(zoom.transform, d3.zoomIdentity.translate(translateX, translateY).scale(scale));
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svg.call(zoom.transform, d3.zoomIdentity.translate(translateX, translateY).scale(scale));
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}}
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}}
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- // 首次渲染也调用一次适配（不等模拟结束）
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- setTimeout(fitToView, 100);
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+ // 首次渲染延迟调用适配（等待DOM完成）
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+ setTimeout(fitToView, 300);
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// 拖拽函数
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// 拖拽函数
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function dragstarted(event, d) {{
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function dragstarted(event, d) {{
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