void object::test<14>()
{
char* wkt1 = "POLYGON((0 0, 10 10, 10 0, 0 0))";
err_ = OGR_G_CreateFromWkt(&wkt1, NULL, &g1_);
ensure_equals("Can't import geometry from WKT", OGRERR_NONE, err_);
ensure("Can't create geometry", NULL != g1_);
char* wkt2 = "POLYGON((0 0, 0 10, 10 0, 0 0))";
err_ = OGR_G_CreateFromWkt(&wkt2, NULL, &g2_);
ensure_equals("Can't import geometry from WKT", OGRERR_NONE, err_);
ensure("Can't create geometry", NULL != g2_);
g3_ = OGR_G_SymmetricDifference(g1_, g2_);
ensure("OGR_G_SymmetricDifference failed with NULL", NULL != g3_);
OGRGeometryH expect = NULL;
char* wktExpect = "MULTIPOLYGON (((5 5,0 0,0 10,5 5)),((5 5,10 10,10 0,5 5)))";
err_ = OGR_G_CreateFromWkt(&wktExpect, NULL, &expect);
ensure_equals("Can't import geometry from WKT", OGRERR_NONE, err_);
ensure("Can't create geometry", NULL != expect);
// Compare operation result against expected geometry
ensure_equal_geometries(g3_, expect, 0.0001);
OGR_G_DestroyGeometry(expect);
}
void object::test<11>()
{
char* wkt1 = "POINT(10 20)";
err_ = OGR_G_CreateFromWkt(&wkt1, NULL, &g1_);
ensure_equals("Can't import geometry from WKT", OGRERR_NONE, err_);
ensure("Can't create geometry", NULL != g1_);
char* wkt2 = "POINT(30 20)";
err_ = OGR_G_CreateFromWkt(&wkt2, NULL, &g2_);
ensure_equals("Can't import geometry from WKT", OGRERR_NONE, err_);
ensure("Can't create geometry", NULL != g2_);
g3_ = OGR_G_Union(g1_, g2_);
ensure("OGR_G_Union failed with NULL", NULL != g3_);
OGRGeometryH expect = NULL;
char* wktExpect = "MULTIPOINT (10 20,30 20)";
err_ = OGR_G_CreateFromWkt(&wktExpect, NULL, &expect);
ensure_equals("Can't import geometry from WKT", OGRERR_NONE, err_);
ensure("Can't create geometry", NULL != expect);
// Compare operation result against expected geometry
ensure_equal_geometries(g3_, expect, 0.0001);
OGR_G_DestroyGeometry(expect);
}
void ensure_equal_geometries(OGRGeometryH lhs, OGRGeometryH rhs, double tolerance)
{
// Test raw pointers
ensure("First geometry is NULL", NULL != lhs);
ensure("Second geometry is NULL", NULL != rhs);
ensure("Passed the same pointers to geometry", lhs != rhs);
// Test basic properties
ensure_equals("Geometry names do not match",
std::string(OGR_G_GetGeometryName(lhs)), std::string(OGR_G_GetGeometryName(rhs)));
ensure_equals("Sub-geometry counts do not match",
OGR_G_GetGeometryCount(lhs), OGR_G_GetGeometryCount(rhs));
ensure_equals("Point counts do not match",
OGR_G_GetPointCount(lhs), OGR_G_GetPointCount(rhs));
if (OGR_G_GetGeometryCount(lhs) > 0)
{
// Test sub-geometries recursively
const int count = OGR_G_GetGeometryCount(lhs);
for (int i = 0; i < count; ++i)
{
ensure_equal_geometries(OGR_G_GetGeometryRef(lhs, i),
OGR_G_GetGeometryRef(rhs, i),
tolerance);
}
}
else
{
// Test geometry points
const std::size_t csize = 3;
double a[csize] = { 0 };
double b[csize] = { 0 };
double d[csize] = { 0 };
double dmax = 0;
const int count = OGR_G_GetPointCount(lhs);
for (int i = 0; i < count; ++i)
{
OGR_G_GetPoint(lhs, i, &a[0], &a[1], &a[2]);
OGR_G_GetPoint(rhs, i, &b[0], &b[1], &b[2]);
// Test vertices
for (std::size_t c = 0; c < csize; ++c)
{
d[c] = std::fabs(a[c] - b[c]);
}
const double* pos = std::max_element(d, d + csize);
dmax = *pos;
std::ostringstream os;
os << "Error in vertex " << i << " off by " << dmax;
ensure(os.str(), dmax < tolerance);
}
}
}
void object::test<5>()
{
// Original shapefile
std::string orig(data_);
orig += SEP;
orig += "poly.shp";
OGRDataSourceH dsOrig = OGR_Dr_Open(drv_, orig.c_str(), false);
ensure("Can't open layer", NULL != dsOrig);
OGRLayerH lyrOrig = OGR_DS_GetLayer(dsOrig, 0);
ensure("Can't get layer", NULL != lyrOrig);
// Copied shapefile
std::string tmp(data_tmp_);
tmp += SEP;
tmp += "tpoly.shp";
OGRDataSourceH dsTmp = OGR_Dr_Open(drv_, tmp.c_str(), false);
ensure("Can't open layer", NULL != dsTmp);
OGRLayerH lyrTmp = OGR_DS_GetLayer(dsTmp, 0);
ensure("Can't get layer", NULL != lyrTmp);
// Iterate through features and compare geometries
OGRFeatureH featOrig = OGR_L_GetNextFeature(lyrOrig);
OGRFeatureH featTmp = OGR_L_GetNextFeature(lyrTmp);
while (NULL != featOrig && NULL != featTmp)
{
OGRGeometryH lhs = OGR_F_GetGeometryRef(featOrig);
OGRGeometryH rhs = OGR_F_GetGeometryRef(featTmp);
ensure_equal_geometries(lhs, rhs, 0.000000001);
// TODO: add ensure_equal_attributes()
OGR_F_Destroy(featOrig);
OGR_F_Destroy(featTmp);
// Move to next feature
featOrig = OGR_L_GetNextFeature(lyrOrig);
featTmp = OGR_L_GetNextFeature(lyrTmp);
}
OGR_DS_Destroy(dsOrig);
OGR_DS_Destroy(dsTmp);
}
void object::test<9>()
{
// Open directory as a datasource
OGRDataSourceH ds = OGR_Dr_Open(drv_, data_tmp_ .c_str(), false);
ensure("Can't open datasource", NULL != ds);
std::string sql("select * from tpoly where prfedea = '35043413'");
OGRLayerH lyr = OGR_DS_ExecuteSQL(ds, sql.c_str(), NULL, NULL);
ensure("Can't create layer from query", NULL != lyr);
// Prepare tester collection
std::vector<std::string> list;
list.push_back("35043413");
// Test attributes
ensure_equal_attributes(lyr, "prfedea", list);
// Test geometry
const char* wkt = "POLYGON ((479750.688 4764702.000,479658.594 4764670.000,"
"479640.094 4764721.000,479735.906 4764752.000,"
"479750.688 4764702.000))";
OGRGeometryH testGeom = NULL;
OGRErr err = OGR_G_CreateFromWkt((char**) &wkt, NULL, &testGeom);
ensure_equals("Can't create geometry from WKT", OGRERR_NONE, err);
OGR_L_ResetReading(lyr);
OGRFeatureH feat = OGR_L_GetNextFeature(lyr);
ensure("Can't featch feature", NULL != feat);
ensure_equal_geometries(OGR_F_GetGeometryRef(feat), testGeom, 0.001);
OGR_F_Destroy(feat);
OGR_G_DestroyGeometry(testGeom);
OGR_DS_ReleaseResultSet(ds, lyr);
OGR_DS_Destroy(ds);
}