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// All rights reserved.
//
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// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// * Neither the name of ETH Zurich and UNC Chapel Hill nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// Author: Johannes L. Schoenberger (jsch-at-demuc-dot-de)
#define TEST_NAME "base/line"
#include "util/testing.h"
#include "base/line.h"
using namespace colmap;
BOOST_AUTO_TEST_CASE(TestDetectLineSegments) {
Bitmap bitmap;
bitmap.Allocate(100, 100, false);
for (size_t i = 0; i < 100; ++i) {
bitmap.SetPixel(i, i, BitmapColor<uint8_t>(255));
}
const auto line_segments = DetectLineSegments(bitmap, 0);
BOOST_CHECK_EQUAL(line_segments.size(), 2);
const Eigen::Vector2d ref_start(0, 0);
const Eigen::Vector2d ref_end(100, 100);
BOOST_CHECK_LT((line_segments[0].start - ref_start).norm(), 5);
BOOST_CHECK_LT((line_segments[0].end - ref_end).norm(), 5);
BOOST_CHECK_LT((line_segments[1].start - ref_end).norm(), 5);
BOOST_CHECK_LT((line_segments[1].end - ref_start).norm(), 5);
BOOST_CHECK_EQUAL(DetectLineSegments(bitmap, 150).size(), 0);
}
BOOST_AUTO_TEST_CASE(TestClassifyLineSegmentOrientations) {
Bitmap bitmap;
bitmap.Allocate(100, 100, false);
for (size_t i = 60; i < 100; ++i) {
bitmap.SetPixel(i, 50, BitmapColor<uint8_t>(255));
bitmap.SetPixel(50, i, BitmapColor<uint8_t>(255));
bitmap.SetPixel(i, i, BitmapColor<uint8_t>(255));
}
const auto line_segments = DetectLineSegments(bitmap, 0);
BOOST_CHECK_EQUAL(line_segments.size(), 6);
const auto orientations = ClassifyLineSegmentOrientations(line_segments);
BOOST_CHECK_EQUAL(orientations.size(), 6);
BOOST_CHECK(orientations[0] == LineSegmentOrientation::VERTICAL);
BOOST_CHECK(orientations[1] == LineSegmentOrientation::VERTICAL);
BOOST_CHECK(orientations[2] == LineSegmentOrientation::HORIZONTAL);
BOOST_CHECK(orientations[3] == LineSegmentOrientation::HORIZONTAL);
BOOST_CHECK(orientations[4] == LineSegmentOrientation::UNDEFINED);
BOOST_CHECK(orientations[5] == LineSegmentOrientation::UNDEFINED);
}
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