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Diffstat (limited to 'Build/source/texk/dvisvgm/dvisvgm-src/tests/BezierTest.cpp')
-rw-r--r-- | Build/source/texk/dvisvgm/dvisvgm-src/tests/BezierTest.cpp | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/Build/source/texk/dvisvgm/dvisvgm-src/tests/BezierTest.cpp b/Build/source/texk/dvisvgm/dvisvgm-src/tests/BezierTest.cpp deleted file mode 100644 index aa86660d840..00000000000 --- a/Build/source/texk/dvisvgm/dvisvgm-src/tests/BezierTest.cpp +++ /dev/null @@ -1,162 +0,0 @@ -/************************************************************************* -** BezierTest.cpp ** -** ** -** This file is part of dvisvgm -- a fast DVI to SVG converter ** -** Copyright (C) 2005-2021 Martin Gieseking <martin.gieseking@uos.de> ** -** ** -** This program is free software; you can redistribute it and/or ** -** modify it under the terms of the GNU General Public License as ** -** published by the Free Software Foundation; either version 3 of ** -** the License, or (at your option) any later version. ** -** ** -** This program is distributed in the hope that it will be useful, but ** -** WITHOUT ANY WARRANTY; without even the implied warranty of ** -** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ** -** GNU General Public License for more details. ** -** ** -** You should have received a copy of the GNU General Public License ** -** along with this program; if not, see <http://www.gnu.org/licenses/>. ** -*************************************************************************/ - -#include <gtest/gtest.h> -#include "Bezier.hpp" - -using namespace std; - -const double EPS = 0.001; - -#define EXPECT_PAIR_EQ(p1,p2) {EXPECT_DOUBLE_EQ(p1.x(), p2.x()); EXPECT_DOUBLE_EQ(p1.y(), p2.y());} -#define EXPECT_PAIR_NEAR(p1,p2) {EXPECT_NEAR(p1.x(), p2.x(), EPS); EXPECT_NEAR(p1.y(), p2.y(), EPS);} -#define EXPECT_BBOX_NEAR(b1,b2) { \ - EXPECT_NEAR(b1.minX(), b2.minX(), EPS); EXPECT_NEAR(b1.maxX(), b2.maxX(), EPS); \ - EXPECT_NEAR(b1.minY(), b2.minY(), EPS); EXPECT_NEAR(b1.maxY(), b2.maxY(), EPS);} - - -TEST(BezierTest, construct) { - // quadratic Bézier curve - Bezier bezier1(DPair(0,0), DPair(12,12), DPair(24,6)); - EXPECT_EQ(bezier1.point(0), DPair(0,0)); - EXPECT_EQ(bezier1.point(1), DPair(8,8)); - EXPECT_EQ(bezier1.point(2), DPair(16,10)); - EXPECT_EQ(bezier1.point(3), DPair(24,6)); - - // cubic Bézier curve - Bezier bezier2(DPair(0,0), DPair(12,12), DPair(24,6), DPair(19,-4)); - EXPECT_EQ(bezier2.point(0), DPair(0,0)); - EXPECT_EQ(bezier2.point(1), DPair(12,12)); - EXPECT_EQ(bezier2.point(2), DPair(24,6)); - EXPECT_EQ(bezier2.point(3), DPair(19,-4)); -} - - -TEST(BezierTest, subcurve) { - Bezier bezier1(DPair(0,0), DPair(12,12), DPair(24,6), DPair(19,-4)); - { - Bezier subcurve(bezier1, 0, 1); - EXPECT_EQ(subcurve.point(0), DPair(0,0)); - EXPECT_EQ(subcurve.point(1), DPair(12,12)); - EXPECT_EQ(subcurve.point(2), DPair(24,6)); - EXPECT_EQ(subcurve.point(3), DPair(19,-4)); - } - { - Bezier subcurve(bezier1, 0, 0.5); - EXPECT_EQ(subcurve.point(0), DPair(0,0)); - EXPECT_EQ(subcurve.point(1), DPair(6,6)); - EXPECT_EQ(subcurve.point(2), DPair(12,7.5)); - EXPECT_EQ(subcurve.point(3), DPair(15.875,6.25)); - } - { - Bezier subcurve(bezier1, 1, 0.5); - EXPECT_EQ(subcurve.point(0), DPair(15.875,6.25)); - EXPECT_EQ(subcurve.point(1), DPair(19.75,5)); - EXPECT_EQ(subcurve.point(2), DPair(21.5,1)); - EXPECT_EQ(subcurve.point(3), DPair(19,-4)); - } - { - Bezier subcurve(bezier1, 0.2, 0.8); - EXPECT_PAIR_NEAR(subcurve.point(0), DPair(7.064,5.152)); - EXPECT_PAIR_NEAR(subcurve.point(1), DPair(13.856,8.368)); - EXPECT_PAIR_NEAR(subcurve.point(2), DPair(19.424,6.112)); - EXPECT_PAIR_NEAR(subcurve.point(3), DPair(20.096,1.408)); - } - { - Bezier subcurve(bezier1, 0, 0); - EXPECT_EQ(subcurve.point(0), DPair(0,0)); - EXPECT_EQ(subcurve.point(1), DPair(0,0)); - EXPECT_EQ(subcurve.point(2), DPair(0,0)); - EXPECT_EQ(subcurve.point(3), DPair(0,0)); - } - { - Bezier subcurve(bezier1, 1, 1); - EXPECT_EQ(subcurve.point(0), DPair(19,-4)); - EXPECT_EQ(subcurve.point(1), DPair(19,-4)); - EXPECT_EQ(subcurve.point(2), DPair(19,-4)); - EXPECT_EQ(subcurve.point(3), DPair(19,-4)); - } -} - - -TEST(BezierTest, reverse) { - Bezier bezier(DPair(0,0), DPair(12,12), DPair(24,6), DPair(19,-4)); - bezier.reverse(); - EXPECT_EQ(bezier.point(0), DPair(19,-4)); - EXPECT_EQ(bezier.point(1), DPair(24,6)); - EXPECT_EQ(bezier.point(2), DPair(12,12)); - EXPECT_EQ(bezier.point(3), DPair(0,0)); -} - - -TEST(BezierTest, bbox) { - Bezier bezier(DPair(0,0), DPair(12,12), DPair(24,6), DPair(30,-5)); - EXPECT_BBOX_NEAR(bezier.getBBox(), BoundingBox(0, -5, 30, 6.598)); -} - - -TEST(BezierTest, approximate) { - vector<DPair> points; - vector<double> times; - Bezier bezier(DPair(0,0), DPair(12,12), DPair(24,6), DPair(30,-5)); - size_t size = bezier.approximate(0.1, points, ×); - double t[] = {0, 0.125, 0.25, 0.375, 0.5, 0.625, 0.75, 1}; - DPair p[] = { - DPair(0,0), DPair(4.488,3.681), DPair(8.906,5.828), DPair(13.183,6.591), - DPair(17.25,6.125), DPair(21.035,4.580), DPair(24.468,2.109), DPair(30,-5) - }; - EXPECT_EQ(size, (size_t)sizeof(t)/sizeof(double)); - EXPECT_EQ(points.size(), size); - EXPECT_EQ(times.size(), size); - for (size_t i=0; i < size; i++) { - EXPECT_EQ(times[i], t[i]) << "i=" << i; - EXPECT_PAIR_NEAR(points[i], p[i]); - } -} - - -TEST(BezierTest, reduceDegree) { - vector<DPair> points; - Bezier bezier(DPair(0,0), DPair(5,10), DPair(10,5)); - int degree = bezier.reduceDegree(0.1, points); - EXPECT_EQ(degree, 2); - EXPECT_EQ(points[0], DPair(0,0)); - EXPECT_EQ(points[1], DPair(5,10)); - EXPECT_EQ(points[2], DPair(10,5)); - - bezier.setPoints(DPair(3,8), DPair(3,8), DPair(3,8), DPair(3,8)); - degree = bezier.reduceDegree(0.1, points); - EXPECT_EQ(degree, 0); - EXPECT_EQ(points[0], DPair(3,8)); - - bezier.setPoints(DPair(0,0), DPair(5,5), DPair(8,8), DPair(10,10)); - degree = bezier.reduceDegree(0.1, points); - EXPECT_EQ(degree, 1); - EXPECT_EQ(points[0], DPair(0,0)); - EXPECT_EQ(points[1], DPair(10,10)); - - bezier.setPoints(DPair(0,0), DPair(5,10), DPair(10,5), DPair(15,10)); - degree = bezier.reduceDegree(0.1, points); - EXPECT_EQ(degree, 3); - EXPECT_EQ(points[0], DPair(0,0)); - EXPECT_EQ(points[1], DPair(5,10)); - EXPECT_EQ(points[2], DPair(10,5)); - EXPECT_EQ(points[3], DPair(15,10)); -} |