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#include <cppunit/TestAssert.h>
#include <cppunit/TestFixture.h>
#include <cppunit/extensions/HelperMacros.h>
#include <basegfx/polygon/b2dpolypolygoncutter.hxx>
namespace basegfx
{
class b2dpolypolygoncutter :
public CppUnit::TestFixture
{
public:
void testMergeToSinglePolyPolygon()
{
{
// Adjacent polygons merged to one, closed manually.
B2DPolygon poly1{ { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 }, { 0, 0 } };
B2DPolygon poly2{ { 0, 1 }, { 1, 1 }, { 1, 2 }, { 0, 2 }, { 0, 1 } };
B2DPolyPolygon expected(
B2DPolygon{ { 1, 0 }, { 1, 1 }, { 1, 2 }, { 0, 2 }, { 0, 1 }, { 0, 0 } });
expected.setClosed(
true);
B2DPolyPolygon result
= utils::mergeToSinglePolyPolygon({ B2DPolyPolygon(poly1), B2DPolyPolygon(poly2) });
CPPUNIT_ASSERT_EQUAL(expected, result);
}
{
// Adjacent polygons merged to one, closed using setClosed().
B2DPolygon poly1{ { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 } };
B2DPolygon poly2{ { 0, 1 }, { 1, 1 }, { 1, 2 }, { 0, 2 } };
poly1.setClosed(
true);
poly2.setClosed(
true);
B2DPolyPolygon expected(
B2DPolygon{ { 0, 0 }, { 1, 0 }, { 1, 1 }, { 1, 2 }, { 0, 2 }, { 0, 1 } });
expected.setClosed(
true);
B2DPolyPolygon result
= utils::mergeToSinglePolyPolygon({ B2DPolyPolygon(poly1), B2DPolyPolygon(poly2) });
CPPUNIT_ASSERT_EQUAL(expected, result);
}
{
// Non-adjacent polygons, no merge.
B2DPolygon poly1{ { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 } };
B2DPolygon poly2{ { 0, 2 }, { 1, 3 }, { 1, 3 }, { 0, 3 } };
poly1.setClosed(
true);
poly2.setClosed(
true);
B2DPolyPolygon expected;
expected.append(poly1);
expected.append(poly2);
B2DPolyPolygon result
= utils::mergeToSinglePolyPolygon({ B2DPolyPolygon(poly1), B2DPolyPolygon(poly2) });
CPPUNIT_ASSERT_EQUAL(expected, result);
}
{
// Horizontal and vertical rectangle that together form a cross.
B2DPolygon poly1{ { 1, 0 }, { 2, 0 }, { 2, 3 }, { 1, 3 } };
B2DPolygon poly2{ { 0, 1 }, { 3, 1 }, { 3, 2 }, { 0, 2 } };
poly1.setClosed(
true);
poly2.setClosed(
true);
B2DPolyPolygon expected(B2DPolygon{ { 1, 0 },
{ 2, 0 },
{ 2, 1 },
{ 3, 1 },
{ 3, 2 },
{ 2, 2 },
{ 2, 3 },
{ 1, 3 },
{ 1, 2 },
{ 0, 2 },
{ 0, 1 },
{ 1, 1 } });
expected.setClosed(
true);
B2DPolyPolygon result
= utils::mergeToSinglePolyPolygon({ B2DPolyPolygon(poly1), B2DPolyPolygon(poly2) });
CPPUNIT_ASSERT_EQUAL(expected, result);
}
}
CPPUNIT_TEST_SUITE(b2dpolypolygoncutter);
CPPUNIT_TEST(testMergeToSinglePolyPolygon);
CPPUNIT_TEST_SUITE_END();
};
}
// namespace basegfx
CPPUNIT_TEST_SUITE_REGISTRATION(basegfx::b2dpolypolygoncutter);
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