diff --git a/src/core/model/Anomaly.hpp b/src/core/model/Anomaly.hpp
new file mode 100644
index 0000000..b475aeb
--- /dev/null
+++ b/src/core/model/Anomaly.hpp
@@ -0,0 +1,20 @@
+#pragma once
+#include <string>
+#include <vector>
+namespace geopro::core {
+
+enum class AnomalyMarkType { Point = 1, Polyline = 2, Polygon = 3 };
+
+struct Vec2 { double x, y; };
+
+struct Anomaly {
+    std::string name;
+    std::string typeName;                 // exceptionTypeName
+    AnomalyMarkType markType = AnomalyMarkType::Polyline;
+    std::vector<Vec2> localPts;           // location.coordinate（局部坐标）
+    std::string lineColor = "#000000";    // legend.polylineColor
+    double lineWidth = 1.0;               // legend.polylineWidth
+    bool dashed = true;                   // legend.polylineShape == "dash"
+};
+
+}  // namespace geopro::core
diff --git a/src/core/model/Field.hpp b/src/core/model/Field.hpp
index 9c2b534..e7c2a2b 100644
--- a/src/core/model/Field.hpp
+++ b/src/core/model/Field.hpp
@@ -33,6 +33,10 @@ public:
     const std::vector<double>& values() const { return values_; }
     std::vector<double>& values() { return values_; }
     std::vector<double> x, y;  // 轴坐标（规则）
+    std::vector<double> z;          // [nx*ny] 褶皱面抬升(可空=平面)
+    std::vector<double> elevation;  // [nx] 电极/地表高程
+    std::vector<double> lat, lon;   // [nx] 经纬度
+    double vmin = 0.0, vmax = 0.0;
 private:
     int nx_, ny_;
     std::vector<double> values_;
@@ -41,6 +45,7 @@ private:
 // 散点场（剖面原数据）：局部坐标 + 值。
 struct ScatterField {
     std::vector<double> x, y, z, v;  // 对应样本 xlist/ylist/(hlist)/vlist
+    std::vector<double> projX, projY;  // GIS 平面坐标
 };
 
 }  // namespace geopro::core
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index d296baf..3cacdcb 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -26,6 +26,7 @@ target_sources(geopro_tests PRIVATE core/test_model.cpp)
 target_sources(geopro_tests PRIVATE core/test_color_scale.cpp)
 target_sources(geopro_tests PRIVATE core/test_idw.cpp)
 target_sources(geopro_tests PRIVATE core/test_crs_transform.cpp)
+target_sources(geopro_tests PRIVATE core/test_model_data.cpp)
 target_link_libraries(geopro_tests PRIVATE geopro_core)
 
 add_subdirectory(spike)   # spike S3: banded contour 渲染验证
diff --git a/tests/core/test_model_data.cpp b/tests/core/test_model_data.cpp
new file mode 100644
index 0000000..701ae4a
--- /dev/null
+++ b/tests/core/test_model_data.cpp
@@ -0,0 +1,25 @@
+#include <gtest/gtest.h>
+#include "model/Field.hpp"
+#include "model/Anomaly.hpp"
+using namespace geopro::core;
+
+TEST(DataModel, GridHasMetaFields) {
+    Grid g(2, 3);
+    g.z.assign(6, 0.0); g.elevation = {1,2}; g.lat = {22.5,22.5}; g.lon = {114.1,114.1};
+    g.vmin = -10; g.vmax = 800;
+    EXPECT_EQ(g.z.size(), 6u);
+    EXPECT_DOUBLE_EQ(g.vmax, 800);
+}
+
+TEST(DataModel, ScatterHasGis) {
+    ScatterField s; s.projX = {516000.0}; s.projY = {2494000.0};
+    EXPECT_EQ(s.projX.size(), 1u);
+}
+
+TEST(DataModel, AnomalyHolds) {
+    Anomaly a;
+    a.name = "ERT1-54"; a.markType = AnomalyMarkType::Polyline;
+    a.localPts = {{1.0, 2.0}, {3.0, 4.0}};
+    EXPECT_EQ(a.markType, AnomalyMarkType::Polyline);
+    EXPECT_EQ(a.localPts.size(), 2u);
+}