src/app/panels/chart/ContourPlotItem.cpp

@@ -117,9 +117,13 @@ void ContourPlotItem::buildFillImage(const core::Grid& g, ColorMapService* svc)
     const int nx = g.nx(), ny = g.ny();
     int W = (nx - 1) * kFillUpsample + 1;
     int H = (ny - 1) * kFillUpsample + 1;
-    // 限幅：极端网格下按比例降采样，保证内存/性能可控。
+    // 限幅：极端网格下按**统一比例**降采样（W/H 独立截断会使采样非均匀→内容横/纵失真）。
-    if (W > kMaxFillDim) W = kMaxFillDim;
+    if (W > kMaxFillDim || H > kMaxFillDim) {
-    if (H > kMaxFillDim) H = kMaxFillDim;
+        const double s = std::min(static_cast<double>(kMaxFillDim) / W,
+                                  static_cast<double>(kMaxFillDim) / H);
+        W = std::max(2, static_cast<int>(W * s));
+        H = std::max(2, static_cast<int>(H * s));
+    }
 
     QImage img(W, H, QImage::Format_ARGB32);
     img.fill(Qt::transparent);

src/app/panels/chart/GridDataChartView.cpp

@@ -173,6 +173,11 @@ GridDataChartView::GridDataChartView(QWidget* parent) : QWidget(parent) {
     });
 }
 
+GridDataChartView::~GridDataChartView() {
+    // colorSvc_ 非 QObject、无 parent，需手动释放（contourItem_ 由 QwtPlot autoDelete 处理）。
+    delete colorSvc_;
+}
+
 void GridDataChartView::setData(const geopro::controller::DatasetDetailController::ChartData& d) {
     data_ = d;
     // 开页：仅把 anomalies 喂给底部异常列表；图表区待网格数据懒加载后填充。
@@ -201,7 +206,8 @@ void GridDataChartView::setGridData(const geopro::core::Grid& grid,
 void GridDataChartView::rebuildContour() {
     if (!hasGrid_ || !colorSvc_) return;
 
-    // 卸载旧项（QwtPlot 不拥有 item）。
+    // 卸载旧项：QwtPlot 默认 autoDelete=true（析构时 delete 仍在 dict 的 item）。
+    // 必须先 detach()（从 dict 移除）再 delete，否则 QwtPlot 析构时会 double-free。
     if (contourItem_) {
         contourItem_->detach();
         delete contourItem_;

src/app/panels/chart/GridDataChartView.hpp

@@ -28,6 +28,7 @@ class GridDataChartView : public QWidget {
     Q_OBJECT
 public:
     explicit GridDataChartView(QWidget* parent = nullptr);
+    ~GridDataChartView() override;
 
     // 开页时调用：仅喂底部异常列表（网格数据随网格页激活懒加载）。
     void setData(const geopro::controller::DatasetDetailController::ChartData& d);

src/app/panels/chart/RawDataChartView.cpp

@@ -115,6 +115,11 @@ RawDataChartView::RawDataChartView(QWidget* parent) : QWidget(parent) {
     lay->addWidget(colorBar_);
 }
 
+RawDataChartView::~RawDataChartView() {
+    // colorSvc_ 非 QObject、无 parent，需手动释放（plot_ 的 item 由 QwtPlot autoDelete 处理）。
+    delete colorSvc_;
+}
+
 QWidget* RawDataChartView::plotArea() const {
     return plot_;
 }
@@ -129,10 +134,10 @@ void RawDataChartView::setData(
     delete colorSvc_;
     colorSvc_ = new ColorMapService(d.scatterScale);
 
-    // 卸载旧散点项
+    // 卸载旧散点项：QwtPlot 默认 autoDelete=true（析构时 delete 仍在 dict 的 item）。
+    // 必须先 detach()（从 dict 移除）再 delete，否则 QwtPlot 析构时会 double-free。
     if (scatterItem_) {
         scatterItem_->detach();
-        // QwtPlot 不拥有 item，需要我们释放
         delete scatterItem_;
         scatterItem_ = nullptr;
     }

src/app/panels/chart/RawDataChartView.hpp

@@ -17,6 +17,7 @@ class RawDataChartView : public QWidget {
     Q_OBJECT
 public:
     explicit RawDataChartView(QWidget* parent = nullptr);
+    ~RawDataChartView() override;
 
     void setData(const geopro::controller::DatasetDetailController::ChartData& d);
 

src/app/panels/chart/ScatterPlotItem.cpp

@@ -50,7 +50,8 @@ void ScatterPlotItem::draw(QPainter* painter,
     const auto& xs = field_.x;
     const auto& ys = field_.y;
     const auto& vs = field_.v;
-    const std::size_t n = xs.size();
+    // x/y/v 来自服务端独立数组，长度可能不一致——取 min 防越界。
+    const std::size_t n = std::min(xs.size(), ys.size());
     if (n == 0) return;
 
     painter->save();

src/controller/DatasetDetailController.cpp

@@ -28,6 +28,9 @@ void DatasetDetailController::openDataset(const QString& dsId, const QString& dd
     } catch (const std::exception& e) {
         busy_ = false;
         emit loadFailed(dsId, QString::fromStdString(e.what()));
+    } catch (...) {  // 非 std 异常(VTK/Qt)也必须复位 busy_，否则永久拒绝后续加载
+        busy_ = false;
+        emit loadFailed(dsId, QStringLiteral("未知错误"));
     }
 }
 
@@ -48,6 +51,9 @@ void DatasetDetailController::loadGridData(const QString& dsId, const QString& d
     } catch (const std::exception& e) {
         busy_ = false;
         emit loadFailed(dsId, QString::fromStdString(e.what()));
+    } catch (...) {  // 非 std 异常(VTK/Qt)也必须复位 busy_，否则永久拒绝后续加载
+        busy_ = false;
+        emit loadFailed(dsId, QStringLiteral("未知错误"));
     }
 }
 

src/data/dto/DatasetChartDto.cpp

@@ -1,6 +1,7 @@
 #include "dto/DatasetChartDto.hpp"
 #include <cmath>
 #include <QString>
+#include <QtGlobal>
 namespace geopro::data::dto {
 using namespace geopro::core;
 
@@ -18,6 +19,8 @@ Grid parseInversionGrid(const QJsonObject& data) {
     Grid g(nx < 1 ? 1 : nx, ny < 1 ? 1 : ny);
     g.x.clear(); for (auto e : x) g.x.push_back(num(e));
     g.y.clear(); for (auto e : y) g.y.push_back(num(e));
+    if (v.size() != ny)  // 服务端 v 行数与 y 不符：下方越界处填 NaN，记录便于排查（非静默）。
+        qWarning("parseInversionGrid: v rows=%d != ny=%d (缺失行将填 NaN)", v.size(), ny);
     for (int j = 0; j < ny; ++j) {
         const QJsonArray row = v.at(j).toArray();
         for (int i = 0; i < nx; ++i) {
@@ -58,7 +61,9 @@ std::vector<Anomaly> parseDatasetAnomalies(const QJsonArray& arr) {
         Anomaly a;
         a.name = o.value("exceptionName").toString().toStdString();
         a.typeName = o.value("exceptionTypeName").toString().toStdString();
-        a.markType = static_cast<AnomalyMarkType>(o.value("exceptionMarkType").toInt(2));
+        const int mt = o.value("exceptionMarkType").toInt(2);  // 1=点 2=线 3=面
+        a.markType = (mt >= 1 && mt <= 3) ? static_cast<AnomalyMarkType>(mt)
+                                          : AnomalyMarkType::Polyline;  // 越界值兜底为线
         const QJsonObject lg = o.value("legend").toObject();
         a.lineColor = lg.value("polylineColor").toString("#000000").toStdString();
         a.lineWidth = lg.value("polylineWidth").toDouble(1.0);

src/render/ContourBands.cpp

@@ -98,24 +98,6 @@ vtkSmartPointer<vtkUnstructuredGrid> toCellGrid(const Grid& g) {
     return ug;
 }
 
-// Douglas-Peucker 等值线简化（就地）。
-void simplifyInPlace(std::vector<Vec2>& pts, double tol) {
-    if (tol <= 0 || pts.size() < 3) return;
-    std::vector<char> keep(pts.size(), 0); keep.front() = keep.back() = 1;
-    std::vector<std::pair<int,int>> st{{0, int(pts.size()) - 1}};
-    auto dist = [](const Vec2& p, const Vec2& a, const Vec2& b) {
-        double dx = b.x - a.x, dy = b.y - a.y, L = std::hypot(dx, dy);
-        if (L < 1e-12) return std::hypot(p.x - a.x, p.y - a.y);
-        return std::fabs((p.x - a.x) * dy - (p.y - a.y) * dx) / L; };
-    while (!st.empty()) { auto [s, e] = st.back(); st.pop_back();
-        double dmax = 0; int idx = -1;
-        for (int k = s + 1; k < e; ++k) { double d = dist(pts[k], pts[s], pts[e]);
-            if (d > dmax) { dmax = d; idx = k; } }
-        if (idx >= 0 && dmax > tol) { keep[idx] = 1; st.push_back({s, idx}); st.push_back({idx, e}); } }
-    std::vector<Vec2> r; for (size_t k = 0; k < pts.size(); ++k) if (keep[k]) r.push_back(pts[k]);
-    pts.swap(r);
-}
-
 }  // namespace
 
 ContourBandsResult buildContourBands(const Grid& g, const ColorScale& cs, const ContourOptions& opt) {

src/render/ContourBands.hpp

@@ -1,4 +1,5 @@
 #pragma once
+#include <limits>
 #include <vector>
 #include "model/Field.hpp"
 #include "model/ColorScale.hpp"
@@ -10,7 +11,7 @@ struct BandPolygon {
     std::vector<geopro::core::Vec2> ring;  // 单环多边形（局部坐标，y=高程向上为正）
 };
 struct ContourLine {
-    double level;
+    double level = std::numeric_limits<double>::quiet_NaN();  // NaN=未解析（与真实 level 0 区分）
     std::vector<geopro::core::Vec2> pts;
 };
 struct ContourBandsResult {
@@ -20,7 +21,6 @@ struct ContourBandsResult {
 struct ContourOptions {
     int   upsample   = 2;     // 双线性上采样倍数（1=不采样）
     double smooth    = 0.3;   // 平滑强度 0..1（0=不平滑）
-    double simplifyTol = 0.5; // 等值线简化容差（数据单位，0=不简化）
     bool  makeLines  = true;
 };
 

tests/render/test_contour_bands.cpp

@@ -12,8 +12,8 @@ TEST(ContourBands, UpsampleIncreasesDetail) {
     g.vmin = 0; g.vmax = 6;
     ColorScale cs;
     cs.addStop(0, Rgba{0,0,255,255}); cs.addStop(3, Rgba{0,255,0,255}); cs.addStop(6, Rgba{255,0,0,255});
-    ContourOptions a; a.upsample = 1; a.smooth = 0; a.simplifyTol = 0;
+    ContourOptions a; a.upsample = 1; a.smooth = 0;
-    ContourOptions b; b.upsample = 2; b.smooth = 0; b.simplifyTol = 0;
+    ContourOptions b; b.upsample = 2; b.smooth = 0;
     auto ra = buildContourBands(g, cs, a);
     auto rb = buildContourBands(g, cs, b);
     EXPECT_GT(rb.bands.size(), ra.bands.size());
@@ -27,7 +27,7 @@ TEST(ContourBands, ClipsNaNRegion) {
     g.valueAt(2, 2) = std::nan("");  // 右上角无效
     g.vmin = 0; g.vmax = 10;
     ColorScale cs; cs.addStop(0, Rgba{0,0,255,255}); cs.addStop(10, Rgba{255,0,0,255});
-    ContourOptions opt; opt.upsample = 1; opt.smooth = 0; opt.simplifyTol = 0;
+    ContourOptions opt; opt.upsample = 1; opt.smooth = 0;
     auto r = buildContourBands(g, cs, opt);
     bool coversCorner = false;
     for (const auto& b : r.bands)
@@ -48,7 +48,7 @@ TEST(ContourBands, ProducesNonEmptyBands) {
     cs.addStop(2.0, Rgba{0, 255, 0, 255});
     cs.addStop(4.0, Rgba{255, 0, 0, 255});
 
-    ContourOptions opt; opt.upsample = 1; opt.smooth = 0; opt.simplifyTol = 0;
+    ContourOptions opt; opt.upsample = 1; opt.smooth = 0;
     auto r = buildContourBands(g, cs, opt);
     ASSERT_FALSE(r.bands.empty());
     for (const auto& b : r.bands) EXPECT_GE(b.ring.size(), 3u);
@@ -65,7 +65,7 @@ TEST(ContourBands, ProducesContourLines) {
     ColorScale cs;
     cs.addStop(0, Rgba{0,0,255,255}); cs.addStop(6, Rgba{0,255,0,255});
     cs.addStop(12, Rgba{255,255,0,255}); cs.addStop(18, Rgba{255,0,0,255});
-    ContourOptions opt; opt.upsample = 1; opt.smooth = 0; opt.simplifyTol = 0; opt.makeLines = true;
+    ContourOptions opt; opt.upsample = 1; opt.smooth = 0; opt.makeLines = true;
     auto r = buildContourBands(g, cs, opt);
     EXPECT_FALSE(r.lines.empty());
 }