1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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20 #include <sal/types.h>
21 #include <cppunit/TestAssert.h>
22 #include <cppunit/TestFixture.h>
23 #include <cppunit/extensions/HelperMacros.h>
25 #include <basegfx/range/b2dpolyrange.hxx>
26 #include <basegfx/polygon/b2dpolygon.hxx>
27 #include <basegfx/polygon/b2dpolygontools.hxx>
28 #include <basegfx/polygon/b2dpolypolygontools.hxx>
29 #include <basegfx/polygon/b2dpolypolygoncutter.hxx>
30 #include <basegfx/polygon/b2dpolypolygon.hxx>
31 #include <comphelper/random.hxx>
32 #include <rtl/math.hxx>
34 using namespace ::basegfx
;
39 static bool compare(const B2DPoint
& left
, const B2DPoint
& right
)
41 return left
.getX()<right
.getX()
42 || (rtl::math::approxEqual(left
.getX(),right
.getX()) && left
.getY()<right
.getY());
45 class boxclipper
: public CppUnit::TestFixture
48 B2DPolyRange aDisjunctRanges
;
49 B2DPolyRange aEqualRanges
;
50 B2DPolyRange aIntersectionN
;
51 B2DPolyRange aIntersectionE
;
52 B2DPolyRange aIntersectionS
;
53 B2DPolyRange aIntersectionW
;
54 B2DPolyRange aIntersectionNE
;
55 B2DPolyRange aIntersectionSE
;
56 B2DPolyRange aIntersectionSW
;
57 B2DPolyRange aIntersectionNW
;
58 B2DPolyRange aRingIntersection
;
59 B2DPolyRange aRingIntersection2
;
60 B2DPolyRange aRingIntersectExtraStrip
;
61 B2DPolyRange aComplexIntersections
;
62 B2DPolyRange aRandomIntersections
;
65 // initialise your test code values here.
68 B2DRange
aCenter(100, 100, -100, -100);
69 B2DRange
aOffside(800, 800, 1000, 1000);
70 B2DRange
aNorth(100, 0, -100, -200);
71 B2DRange
aSouth(100, 200, -100, 0);
72 B2DRange
aEast(0, 100, 200, -100);
73 B2DRange
aWest(-200, 100, 0, -100);
74 B2DRange
aNorthEast(0, 0, 200, -200);
75 B2DRange
aSouthEast(0, 0, 200, 200);
76 B2DRange
aSouthWest(0, 0, -200, 200);
77 B2DRange
aNorthWest(0, 0, -200, -200);
79 B2DRange
aNorth2(-150, 50, 150, 350);
80 B2DRange
aSouth2(-150, -50, 150, -350);
81 B2DRange
aEast2 (50, -150, 350, 150);
82 B2DRange
aWest2 (-50, -150,-350, 150);
84 aDisjunctRanges
.appendElement( aCenter
, B2VectorOrientation::Negative
);
85 aDisjunctRanges
.appendElement( aOffside
, B2VectorOrientation::Negative
);
87 aEqualRanges
.appendElement( aCenter
, B2VectorOrientation::Negative
);
88 aEqualRanges
.appendElement( aCenter
, B2VectorOrientation::Negative
);
90 aIntersectionN
.appendElement( aCenter
, B2VectorOrientation::Negative
);
91 aIntersectionN
.appendElement( aNorth
, B2VectorOrientation::Negative
);
93 aIntersectionE
.appendElement( aCenter
, B2VectorOrientation::Negative
);
94 aIntersectionE
.appendElement( aEast
, B2VectorOrientation::Negative
);
96 aIntersectionS
.appendElement( aCenter
, B2VectorOrientation::Negative
);
97 aIntersectionS
.appendElement( aSouth
, B2VectorOrientation::Negative
);
99 aIntersectionW
.appendElement( aCenter
, B2VectorOrientation::Negative
);
100 aIntersectionW
.appendElement( aWest
, B2VectorOrientation::Negative
);
102 aIntersectionNE
.appendElement( aCenter
, B2VectorOrientation::Negative
);
103 aIntersectionNE
.appendElement( aNorthEast
, B2VectorOrientation::Negative
);
105 aIntersectionSE
.appendElement( aCenter
, B2VectorOrientation::Negative
);
106 aIntersectionSE
.appendElement( aSouthEast
, B2VectorOrientation::Negative
);
108 aIntersectionSW
.appendElement( aCenter
, B2VectorOrientation::Negative
);
109 aIntersectionSW
.appendElement( aSouthWest
, B2VectorOrientation::Negative
);
111 aIntersectionNW
.appendElement( aCenter
, B2VectorOrientation::Negative
);
112 aIntersectionNW
.appendElement( aNorthWest
, B2VectorOrientation::Negative
);
114 aRingIntersection
.appendElement( aNorth2
, B2VectorOrientation::Negative
);
115 aRingIntersection
.appendElement( aEast2
, B2VectorOrientation::Negative
);
116 aRingIntersection
.appendElement( aSouth2
, B2VectorOrientation::Negative
);
118 aRingIntersection2
= aRingIntersection
;
119 aRingIntersection2
.appendElement( aWest2
, B2VectorOrientation::Negative
);
121 aRingIntersectExtraStrip
= aRingIntersection2
;
122 aRingIntersectExtraStrip
.appendElement( B2DRange(0, -25, 200, 25),
123 B2VectorOrientation::Negative
);
125 aComplexIntersections
.appendElement( aCenter
, B2VectorOrientation::Negative
);
126 aComplexIntersections
.appendElement( aOffside
, B2VectorOrientation::Negative
);
127 aComplexIntersections
.appendElement( aCenter
, B2VectorOrientation::Negative
);
128 aComplexIntersections
.appendElement( aNorth
, B2VectorOrientation::Negative
);
129 aComplexIntersections
.appendElement( aEast
, B2VectorOrientation::Negative
);
130 aComplexIntersections
.appendElement( aSouth
, B2VectorOrientation::Negative
);
131 aComplexIntersections
.appendElement( aWest
, B2VectorOrientation::Negative
);
132 aComplexIntersections
.appendElement( aNorthEast
, B2VectorOrientation::Negative
);
133 aComplexIntersections
.appendElement( aSouthEast
, B2VectorOrientation::Negative
);
134 aComplexIntersections
.appendElement( aSouthWest
, B2VectorOrientation::Negative
);
135 aComplexIntersections
.appendElement( aNorthWest
, B2VectorOrientation::Negative
);
137 #ifdef GENERATE_RANDOM
138 for( int i
=0; i
<800; ++i
)
140 B2DRange
aRandomRange(
141 getRandomOrdinal( 1000 ),
142 getRandomOrdinal( 1000 ),
143 getRandomOrdinal( 1000 ),
144 getRandomOrdinal( 1000 ) );
146 aRandomIntersections
.appendElement( aRandomRange
, B2VectorOrientation::Negative
);
149 static constexpr OUString randomSvg
=u
"m394 783h404v57h-404zm-197-505h571v576h-571zm356-634h75v200h-75zm-40-113h403v588h-403zm93-811h111v494h-111zm-364-619h562v121h-562zm-134-8h292v27h-292zm110 356h621v486h-621zm78-386h228v25h-228zm475-345h201v201h-201zm-2-93h122v126h-122zm-417-243h567v524h-567zm-266-738h863v456h-863zm262-333h315v698h-315zm-328-826h43v393h-43zm830-219h120v664h-120zm-311-636h221v109h-221zm-500 137h628v19h-628zm681-94h211v493h-211zm-366-646h384v355h-384zm-189-199h715v247h-715zm165-459h563v601h-563zm258-479h98v606h-98zm270-517h65v218h-65zm-44-259h96v286h-96zm-599-202h705v468h-705zm216-803h450v494h-450zm-150-22h26v167h-26zm-55-599h50v260h-50zm190-278h490v387h-490zm-290-453h634v392h-634zm257 189h552v300h-552zm-151-690h136v455h-136zm12-597h488v432h-488zm501-459h48v39h-48zm-224-112h429v22h-429zm-281 102h492v621h-492zm519-158h208v17h-208zm-681-563h56v427h-56zm126-451h615v392h-615zm-47-410h598v522h-598zm-32 316h79v110h-79zm-71-129h18v127h-18zm126-993h743v589h-743zm211-430h428v750h-428zm61-554h100v220h-100zm-353-49h658v157h-658zm778-383h115v272h-115zm-249-541h119v712h-119zm203 86h94v40h-94z"_ustr
;
150 B2DPolyPolygon randomPoly
;
151 CPPUNIT_ASSERT(utils::importFromSvgD(randomPoly
, randomSvg
, false, nullptr));
152 for (auto const& aPolygon
: std::as_const(randomPoly
))
153 aRandomIntersections
.appendElement(aPolygon
.getB2DRange(), B2VectorOrientation::Negative
);
157 B2DPolyPolygon
normalizePoly( const B2DPolyPolygon
& rPoly
) const
160 for( sal_uInt32 i
=0; i
<rPoly
.count(); ++i
)
162 B2DPolygon aTmp
=rPoly
.getB2DPolygon(i
);
163 if( utils::getOrientation(aTmp
) == B2VectorOrientation::Negative
)
166 aTmp
=utils::removeNeutralPoints(aTmp
);
167 std::vector
<B2DPoint
> aTmp2(aTmp
.count());
168 for(sal_uInt32 j
=0; j
<aTmp
.count(); ++j
)
169 aTmp2
[j
] = aTmp
.getB2DPoint(j
);
171 std::vector
<B2DPoint
>::iterator pSmallest
=aTmp2
.end();
172 for(std::vector
<B2DPoint
>::iterator pCurr
=aTmp2
.begin(); pCurr
!=aTmp2
.end(); ++pCurr
)
174 if( pSmallest
== aTmp2
.end() || compare(*pCurr
, *pSmallest
) )
180 if( pSmallest
!= aTmp2
.end() )
181 std::rotate(aTmp2
.begin(),pSmallest
,aTmp2
.end());
184 for(const auto& rCurr
: aTmp2
)
190 // boxclipper & generic clipper disagree slightly on area-less
191 // polygons (one or two points only)
192 aRes
= utils::stripNeutralPolygons(aRes
);
194 // now, sort all polygons with increasing 0th point
195 std::sort(aRes
.begin(),
197 [](const B2DPolygon
& aPolygon1
, const B2DPolygon
& aPolygon2
) {
198 return compare(aPolygon1
.getB2DPoint(0),
199 aPolygon2
.getB2DPoint(0)); } );
204 void verifyPoly(const char* sName
, const char* sSvg
, const B2DPolyRange
& toTest
) const
206 B2DPolyPolygon aTmp1
;
207 CPPUNIT_ASSERT_MESSAGE(sName
,
208 utils::importFromSvgD(
209 aTmp1
, OUString::createFromAscii(sSvg
), false, nullptr));
212 utils::exportToSvgD(toTest
.solveCrossovers(), true, true, false);
213 B2DPolyPolygon aTmp2
;
214 CPPUNIT_ASSERT_MESSAGE(sName
,
215 utils::importFromSvgD(
216 aTmp2
, aSvg
, false, nullptr));
218 CPPUNIT_ASSERT_EQUAL_MESSAGE(
220 normalizePoly(aTmp1
), normalizePoly(aTmp2
));
225 const char* const disjunct
="m-100-100v200h200v-200zm900 900v200h200v-200z";
226 const char* const equal
="m-100-100v200h200v-200zm200 0h-200v200h200v-200z";
227 const char* const intersectionN
="m-100-100v100h200v-100zm200 0v-100h-200v100 200h200v-200z";
228 const char* const intersectionE
="m0-100v200h100v-200zm0 0h-100v200h100 200v-200z";
229 const char* const intersectionS
="m-100 0v100h200v-100zm0-100v200 100h200v-100-200z";
230 const char* const intersectionW
="m-100-100v200h100v-200zm0 0h-100v200h100 200v-200z";
231 const char* const intersectionNE
="m0-100v100h100v-100zm0-100v100h-100v200h200v-100h100v-200z";
232 const char* const intersectionSE
="m0 0v100h100v-100zm100 0v-100h-200v200h100v100h200v-200z";
233 const char* const intersectionSW
="m-100 0v100h100v-100zm0-100v100h-100v200h200v-100h100v-200z";
234 const char* const intersectionNW
="m-100-100v100h100v-100zm100 0v-100h-200v200h100v100h200v-200z";
235 const char* const ringIntersection
="m50-150v100h100v-100zm0 200v100h100v-100zm100-200v-200h-300v300h200v100h-200v300h300v-200h200v-300z";
236 const char* const ringIntersection2
="m-150 50v100h100v-100zm0-200v100h100v-100zm100 200v-100h100v100z"
237 "m100-200v100h100v-100zm0 200v100h100v-100zm100-200v-200h-300v200h-200v300h200v200h300v-200h200v-300z";
238 const char* const ringIntersectExtraStrip
="m-150 50v100h100v-100zm0-200v100h100v-100zm100 200v-100h100v25h-50v50h50v25z"
239 "m100-200v100h100v-100zm0 200v100h100v-100zm0-75v50h150v-50z"
240 "m100-125v-200h-300v200h-200v300h200v200h300v-200h200v-300z";
241 const char* const complexIntersections
="m0 0zm0 0zm0 0zm0 0v-100 100h-100 100v100-100h100zm0 0v-100 100h-100 100v100-100h100z"
242 "m100 0v-100h-100-100v100 100h100 100v-100zm0 0v-100h-100-100v100 100h100 100v-100z"
243 "m0 0v-100h-100v-100 100h-100v100h-100 100v100h100v100-100h100v-100h100z"
244 "m0-100v-100h-100-100v100h-100v100 100h100v100h100 100v-100h100v-100-100z"
245 "m100 0v-100h-200-100-100v100 200 100h100 100 200v-100-200zm600 900v200h200v-200z";
246 const char* const randomIntersections
="m20-4515v393h43v-393zm34-8690v127h18v-127zm24 674v427h56v-427zm126-451v16-16z"
247 "m22 3470v260h50v-260zm55 599v167h26v-167zm-49-1831v455h136v-455z"
248 "m10 8845v19h158v-19zm54-38v25h228v-25zm156-13245v108h100v-108z"
249 "m101 14826v200h75v-200zm-205-3000v365h315v-365zm-309-1877v19h628v-19z"
250 "m549-1398v127h98v-127zm18 5351v215h111v-215zm-362-10061v152h488v-152z"
251 "m488 0v-469h-492v621h4v280h488v-432zm-378 5368v48h384v-48zm274-10182v712h119v-712z"
252 "m-424 3173v-94h-47v110h47v96h551v-112zm-105-2249v157h353v112h100v-112h205v-157z"
253 "m284 5177v203h377v-203zm337 4727v66h40v-66zm-326 6110v57h374v-57zm351-12583v39h48v-39z"
254 "m23 12583v-505h-571v576h571v-14h30v-57zm-368-2682v-8h-292v27h134v102h562v-121z"
255 "m-9-12299v320h428v-320zm364 1216v-410h-598v316h-32v110h32v96h47v280h615v-392z"
256 "m-537 11431v486h388v279h111v-279h122v-486zm112-4621v142h550v-142zm101-2719v494h450v-494z"
257 "m340 6609v33h120v-33zm-85-4349v-479h-98v479h-258v459h-165v247h189v307h384v-307h142v-105h13v-601z"
258 "m-270-3159v36h490v-36zm442 2163v7h52v-7zm-345 7158v588h403v-588zm378-1813v-93h-122v126h2v155h148v-188z"
259 "m19-5345v-259h-96v266h44v20h52v-20h10v-7zm-91-6571v-430h-428v430h-211v589h743v-589z"
260 "m101 6571v-461h-705v468h599v20h44v191h65v-218zm-89-8442v40h94v-40zm-71 10742v-43h-221v109h181v427h211v-493z"
261 "m0-4727v-189h-634v392h257v97h33v351h490v-351h29v-300zm-97 6698v-333h-315v333h-262v456h863v-456z"
262 "m-142-8556v22h429v-22zm238-56v17h208v-17zm91 7234v664h120v-664zm69 2452v-336h-567v524h419v13h201v-201z"
263 "m-42-13332v272h115v-272z";
265 verifyPoly("disjunct", disjunct
, aDisjunctRanges
);
266 verifyPoly("equal", equal
, aEqualRanges
);
267 verifyPoly("intersectionN", intersectionN
, aIntersectionN
);
268 verifyPoly("intersectionE", intersectionE
, aIntersectionE
);
269 verifyPoly("intersectionS", intersectionS
, aIntersectionS
);
270 verifyPoly("intersectionW", intersectionW
, aIntersectionW
);
271 verifyPoly("intersectionNE", intersectionNE
, aIntersectionNE
);
272 verifyPoly("intersectionSE", intersectionSE
, aIntersectionSE
);
273 verifyPoly("intersectionSW", intersectionSW
, aIntersectionSW
);
274 verifyPoly("intersectionNW", intersectionNW
, aIntersectionNW
);
275 verifyPoly("ringIntersection", ringIntersection
, aRingIntersection
);
276 verifyPoly("ringIntersection2", ringIntersection2
, aRingIntersection2
);
277 verifyPoly("ringIntersectExtraStrip", ringIntersectExtraStrip
, aRingIntersectExtraStrip
);
278 verifyPoly("complexIntersections", complexIntersections
, aComplexIntersections
);
279 verifyPoly("randomIntersections", randomIntersections
, aRandomIntersections
);
282 void dumpSvg(const char* pName
,
283 const ::basegfx::B2DPolyPolygon
& rPoly
) const
285 (void)pName
; (void)rPoly
;
286 #if OSL_DEBUG_LEVEL > 2
287 fprintf(stderr
, "%s - svg:d=\"%s\"\n",
288 pName
, OUStringToOString(
289 basegfx::utils::exportToSvgD(rPoly
, , true, true, false),
290 RTL_TEXTENCODING_UTF8
).getStr() );
294 void getPolyPolygon()
296 dumpSvg("disjunct",aDisjunctRanges
.solveCrossovers());
297 dumpSvg("equal",aEqualRanges
.solveCrossovers());
298 dumpSvg("intersectionN",aIntersectionN
.solveCrossovers());
299 dumpSvg("intersectionE",aIntersectionE
.solveCrossovers());
300 dumpSvg("intersectionS",aIntersectionS
.solveCrossovers());
301 dumpSvg("intersectionW",aIntersectionW
.solveCrossovers());
302 dumpSvg("intersectionNE",aIntersectionNE
.solveCrossovers());
303 dumpSvg("intersectionSE",aIntersectionSE
.solveCrossovers());
304 dumpSvg("intersectionSW",aIntersectionSW
.solveCrossovers());
305 dumpSvg("intersectionNW",aIntersectionNW
.solveCrossovers());
306 dumpSvg("ringIntersection",aRingIntersection
.solveCrossovers());
307 dumpSvg("ringIntersection2",aRingIntersection2
.solveCrossovers());
308 dumpSvg("aRingIntersectExtraStrip",aRingIntersectExtraStrip
.solveCrossovers());
309 dumpSvg("complexIntersections",aComplexIntersections
.solveCrossovers());
310 dumpSvg("randomIntersections",aRandomIntersections
.solveCrossovers());
312 CPPUNIT_ASSERT_MESSAGE("getPolyPolygon", true );
315 void validatePoly( const char* pName
, const B2DPolyRange
& rRange
) const
317 B2DPolyPolygon genericClip
;
318 const sal_uInt32 nCount
=rRange
.count();
319 for( sal_uInt32 i
=0; i
<nCount
; ++i
)
321 B2DPolygon aRect
=utils::createPolygonFromRect(std::get
<0>(rRange
.getElement(i
)));
322 if( std::get
<1>(rRange
.getElement(i
)) == B2VectorOrientation::Negative
)
325 genericClip
.append(aRect
);
328 #if OSL_DEBUG_LEVEL > 2
329 fprintf(stderr
, "%s input - svg:d=\"%s\"\n",
330 pName
, OUStringToOString(
331 basegfx::utils::exportToSvgD(
332 genericClip
, , true, true, false),
333 RTL_TEXTENCODING_UTF8
).getStr() );
336 const B2DPolyPolygon boxClipResult
=rRange
.solveCrossovers();
337 const OUString
boxClipSvg(
338 basegfx::utils::exportToSvgD(
339 normalizePoly(boxClipResult
), true, true, false));
340 #if OSL_DEBUG_LEVEL > 2
341 fprintf(stderr
, "%s boxclipper - svg:d=\"%s\"\n",
342 pName
, OUStringToOString(
344 RTL_TEXTENCODING_UTF8
).getStr() );
347 genericClip
= utils::solveCrossovers(genericClip
);
348 const OUString
genericClipSvg(
349 basegfx::utils::exportToSvgD(
350 normalizePoly(genericClip
), true, true, false));
351 #if OSL_DEBUG_LEVEL > 2
352 fprintf(stderr
, "%s genclipper - svg:d=\"%s\"\n",
353 pName
, OUStringToOString(
355 RTL_TEXTENCODING_UTF8
).getStr() );
358 CPPUNIT_ASSERT_EQUAL_MESSAGE(pName
,
359 boxClipSvg
, genericClipSvg
);
364 validatePoly("disjunct", aDisjunctRanges
);
365 validatePoly("equal", aEqualRanges
);
366 validatePoly("intersectionN", aIntersectionN
);
367 validatePoly("intersectionE", aIntersectionE
);
368 validatePoly("intersectionS", aIntersectionS
);
369 validatePoly("intersectionW", aIntersectionW
);
370 validatePoly("intersectionNE", aIntersectionNE
);
371 validatePoly("intersectionSE", aIntersectionSE
);
372 validatePoly("intersectionSW", aIntersectionSW
);
373 validatePoly("intersectionNW", aIntersectionNW
);
374 // subtle differences on Solaris Intel, comparison not smart enough
375 // (due to floating point inaccuracies)
376 //validatePoly("ringIntersection", aRingIntersection);
377 //validatePoly("ringIntersection2", aRingIntersection2);
378 //validatePoly("ringIntersectExtraStrip", aRingIntersectExtraStrip);
379 // generic clipper buggy here, likely
380 //validatePoly("complexIntersections", aComplexIntersections);
381 //validatePoly("randomIntersections", aRandomIntersections);
384 // Change the following lines only, if you add, remove or rename
385 // member functions of the current class,
386 // because these macros are need by auto register mechanism.
388 CPPUNIT_TEST_SUITE(boxclipper
);
389 CPPUNIT_TEST(validatePoly
);
390 CPPUNIT_TEST(verifyPoly
);
391 CPPUNIT_TEST(getPolyPolygon
);
392 CPPUNIT_TEST_SUITE_END();
395 CPPUNIT_TEST_SUITE_REGISTRATION(basegfx2d::boxclipper
);
396 } // namespace basegfx2d
398 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */