106 lines
3.3 KiB
C++
106 lines
3.3 KiB
C++
#include <gtest/gtest.h>
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#include <vtkCubeAxesActor.h>
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#include "actors/AxesActor.hpp"
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#include "geo/GeoLocalFrame.hpp"
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using namespace geopro::render;
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namespace {
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constexpr double kFeetPerMeter = 3.28084;
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}
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// unitScaleFactor：米=1，英尺=3.28084。
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TEST(AxesActor, UnitScaleFactor) {
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EXPECT_DOUBLE_EQ(unitScaleFactor(AxesUnit::Meter), 1.0);
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EXPECT_DOUBLE_EQ(unitScaleFactor(AxesUnit::Feet), kFeetPerMeter);
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}
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// 不显示模式 → 返回 nullptr（不入场景）。
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TEST(AxesActor, NoneModeReturnsNull) {
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double b[6] = {0, 10, 0, 20, -5, 0};
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AxesOptions opts;
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opts.mode = AxesMode::None;
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EXPECT_EQ(buildAxes(b, opts, nullptr), nullptr);
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}
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// 退化包围盒（全 0）→ nullptr。
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TEST(AxesActor, DegenerateBoundsReturnsNull) {
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double zero[6] = {0, 0, 0, 0, 0, 0};
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AxesOptions opts;
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opts.mode = AxesMode::Standard;
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EXPECT_EQ(buildAxes(zero, opts, nullptr), nullptr);
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double inverted[6] = {10, 0, 0, 20, -5, 0}; // xmin>xmax
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EXPECT_EQ(buildAxes(inverted, opts, nullptr), nullptr);
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}
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// 标准模式 + 米：构建非空，几何 bounds 保留，X 显示范围 = 原值。
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TEST(AxesActor, StandardMeterKeepsRange) {
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double b[6] = {0, 100, 0, 200, -50, 0};
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AxesOptions opts;
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opts.mode = AxesMode::Standard;
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opts.unit = AxesUnit::Meter;
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auto ax = buildAxes(b, opts, nullptr);
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ASSERT_NE(ax, nullptr);
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double xr[2];
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ax->GetXAxisRange(xr);
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EXPECT_NEAR(xr[0], 0.0, 1e-9);
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EXPECT_NEAR(xr[1], 100.0, 1e-9);
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// 几何 bounds 不变。
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double gb[6];
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ax->GetBounds(gb);
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EXPECT_NEAR(gb[1], 100.0, 1e-9);
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}
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// 英尺：显示范围 = 米值 × 3.28084（几何 bounds 仍为米）。
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TEST(AxesActor, FeetScalesDisplayRange) {
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double b[6] = {0, 100, 0, 200, -50, 0};
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AxesOptions opts;
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opts.mode = AxesMode::Standard;
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opts.unit = AxesUnit::Feet;
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auto ax = buildAxes(b, opts, nullptr);
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ASSERT_NE(ax, nullptr);
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double xr[2];
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ax->GetXAxisRange(xr);
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EXPECT_NEAR(xr[1], 100.0 * kFeetPerMeter, 1e-6);
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// 几何 bounds 仍是米，不被换算。
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double gb[6];
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ax->GetBounds(gb);
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EXPECT_NEAR(gb[1], 100.0, 1e-9);
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}
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// 经纬度：X 显示范围反算为经度（在 lon0 附近、随 +x 增大）。
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TEST(AxesActor, LatLonUsesFrameReverse) {
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geopro::core::GeoLocalFrame frame(22.5, 114.16);
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double b[6] = {0, 1000, 0, 1000, -50, 0}; // 1km 范围
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AxesOptions opts;
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opts.mode = AxesMode::Standard;
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opts.unit = AxesUnit::LatLon;
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opts.frame = &frame;
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auto ax = buildAxes(b, opts, nullptr);
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ASSERT_NE(ax, nullptr);
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double xr[2], yr[2];
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ax->GetXAxisRange(xr);
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ax->GetYAxisRange(yr);
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// x=0 → lon0；x=1000m → 略大于 lon0。
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EXPECT_NEAR(xr[0], 114.16, 1e-9);
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EXPECT_GT(xr[1], 114.16);
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EXPECT_NEAR(yr[0], 22.5, 1e-9);
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EXPECT_GT(yr[1], 22.5);
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}
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// 经纬度但无 frame → 退化为米（不反算，显示范围 = 原值）。
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TEST(AxesActor, LatLonWithoutFrameFallsBackToMeter) {
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double b[6] = {0, 100, 0, 200, -50, 0};
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AxesOptions opts;
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opts.mode = AxesMode::Standard;
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opts.unit = AxesUnit::LatLon;
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opts.frame = nullptr;
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auto ax = buildAxes(b, opts, nullptr);
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ASSERT_NE(ax, nullptr);
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double xr[2];
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ax->GetXAxisRange(xr);
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EXPECT_NEAR(xr[1], 100.0, 1e-9); // 米回退
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}
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