8000 proj_trans_bounds(): make it work when target CRS is a CompoundCRS by rouault · Pull Request #4333 · OSGeo/PROJ · GitHub
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proj_trans_bounds(): make it work when target CRS is a CompoundCRS #4333

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Merged
merged 1 commit into from
Dec 2, 2024
Merged

proj_trans_bounds(): make it work when target CRS is a CompoundCRS #4333

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14 changes: 12 additions & 2 deletions src/4D_api.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1416,8 +1416,18 @@ static int target_crs_lon_lat_order(PJ_CONTEXT *transformer_ctx,
"Unable to retrieve target CRS");
return -1;
}
PJ *coord_system_pj =
proj_crs_get_coordinate_system(transformer_ctx, target_crs);
PJ *coord_system_pj;
if (proj_get_type(target_crs) == PJ_TYPE_COMPOUND_CRS) {
PJ *horiz_crs = proj_crs_get_sub_crs(transformer_ctx, target_crs, 0);
if (!horiz_crs)
return -1;
coord_system_pj =
proj_crs_get_coordinate_system(transformer_ctx, horiz_crs);
proj_destroy(horiz_crs);
} else {
coord_system_pj =
proj_crs_get_coordinate_system(transformer_ctx, target_crs);
}
proj_destroy(target_crs);
if (coord_system_pj == nullptr) {
proj_context_log_debug(transformer_ctx,
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21 changes: 21 additions & 0 deletions test/unit/test_c_api.cpp
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Expand Up @@ -6515,6 +6515,27 @@ TEST_F(CApi, proj_trans_bounds__south_pole) {

// ---------------------------------------------------------------------------

TEST_F(CApi, proj_trans_bounds_to_compound_crs) {
// EPSG:9707 = "WGS 84 + EGM96 height"
auto P = proj_create_crs_to_crs(m_ctxt, "EPSG:4326", "EPSG:9707", nullptr);
ObjectKeeper keeper_P(P);
ASSERT_NE(P, nullptr);
double out_left;
double out_bottom;
double out_right;
double out_top;
int success =
proj_trans_bounds(m_ctxt, P, PJ_FWD, 40, -120, 64, -80, &out_left,
&out_bottom, &out_right, &out_top, 0);
EXPECT_TRUE(success == 1);
EXPECT_NEAR(out_left, 40, 1e-8);
EXPECT_NEAR(out_bottom, -120, 1e-8);
EXPECT_NEAR(out_right, 64, 1e-8);
EXPECT_NEAR(out_top, -80, 1e-8);
}

// ---------------------------------------------------------------------------

TEST_F(CApi, proj_crs_has_point_motion_operation) {
auto ctxt = proj_create_operation_factory_context(m_ctxt, nullptr);
ASSERT_NE(ctxt, nullptr);
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0