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Diffstat (limited to 'tests/test_FanFlatProjectionGeometry2D.cpp')
| -rw-r--r-- | tests/test_FanFlatProjectionGeometry2D.cpp | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/tests/test_FanFlatProjectionGeometry2D.cpp b/tests/test_FanFlatProjectionGeometry2D.cpp new file mode 100644 index 0000000..a07fbf8 --- /dev/null +++ b/tests/test_FanFlatProjectionGeometry2D.cpp @@ -0,0 +1,119 @@ +/* +----------------------------------------------------------------------- +Copyright 2012 iMinds-Vision Lab, University of Antwerp + +Contact: astra@ua.ac.be +Website: http://astra.ua.ac.be + + +This file is part of the +All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox"). + +The ASTRA Toolbox 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. + +The ASTRA Toolbox 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 the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>. + +----------------------------------------------------------------------- +$Id$ +*/ + + +#define BOOST_TEST_DYN_LINK +#include <boost/test/unit_test.hpp> +#include <boost/test/auto_unit_test.hpp> +#include <boost/test/test_case_template.hpp> +#include <boost/test/floating_point_comparison.hpp> + +#include <cmath> + +#include "astra/FanFlatProjectionGeometry2D.h" + +BOOST_AUTO_TEST_CASE( testFanFlatProjectionGeometry2D_Constructor ) +{ + astra::float32 angles[] = { 0.0f, 1.0f, 2.0f, 3.0f }; + astra::CFanFlatProjectionGeometry2D geom(4, 8, 0.5f, angles, 1.0f, 2.0f); + + BOOST_REQUIRE( geom.isInitialized() ); + + BOOST_CHECK( geom.getProjectionAngleCount() == 4 ); + BOOST_CHECK( geom.getDetectorCount() == 8 ); + BOOST_CHECK( geom.getDetectorWidth() == 0.5f ); + BOOST_CHECK( geom.getProjectionAngle(0) == 0.0f ); + BOOST_CHECK( geom.getProjectionAngle(1) == 1.0f ); + BOOST_CHECK( geom.getProjectionAngle(2) == 2.0f ); + BOOST_CHECK( geom.getProjectionAngle(3) == 3.0f ); + BOOST_CHECK( geom.getProjectionAngles()[0] == 0.0f ); + BOOST_CHECK( geom.getProjectionAngles()[3] == 3.0f ); + BOOST_CHECK( geom.getOriginSourceDistance() == 1.0f ); + BOOST_CHECK( geom.getOriginDetectorDistance() == 2.0f ); +} + +BOOST_AUTO_TEST_CASE( testFanFlatProjectionGeometry2D_Offsets ) +{ + astra::float32 angles[] = { 0.0f, 1.0f, 2.0f, 3.0f }; + astra::CFanFlatProjectionGeometry2D geom(4, 8, 0.5f, angles, 1.0f, 2.0f); + + BOOST_REQUIRE( geom.isInitialized() ); + + BOOST_CHECK( geom.getSourceDetectorDistance() == 3.0f ); + BOOST_CHECK_SMALL( geom.getProjectionAngleDegrees(2) - 114.591559026165f, 1e-5f ); + + // CHECKME: where is the center of the detector array? + BOOST_CHECK( geom.detectorOffsetToIndexFloat(0.0f) == 3.5f ); + BOOST_CHECK( geom.detectorOffsetToIndexFloat(0.625f) == 4.75f ); + BOOST_CHECK( geom.detectorOffsetToIndex(-0.1f) == 3 ); + + BOOST_CHECK( geom.indexToDetectorOffset(0) == -1.75f ); + BOOST_CHECK( geom.indexToDetectorOffset(1) == -1.25f ); + + int angle, detector; + geom.indexToAngleDetectorIndex(10, angle, detector); + BOOST_CHECK( angle == 1 ); + BOOST_CHECK( detector == 2 ); + + float t, theta; + geom.getRayParams(0, 2, t, theta); + BOOST_CHECK_SMALL( tan(theta) + 0.25f, astra::eps ); + BOOST_CHECK_SMALL( 17.0f*t*t - 1.0f, astra::eps ); + + // TODO: add test with large angle +} + + +BOOST_AUTO_TEST_CASE( testFanFlatProjectionGeometry2D_Clone ) +{ + astra::float32 angles[] = { 0.0f, 1.0f, 2.0f, 3.0f }; + astra::CFanFlatProjectionGeometry2D geom(4, 8, 0.5f, angles, 1.0f, 2.0f); + + BOOST_REQUIRE( geom.isInitialized() ); + + astra::CFanFlatProjectionGeometry2D* geom2; + geom2 = dynamic_cast<astra::CFanFlatProjectionGeometry2D*>(geom.clone()); + + BOOST_REQUIRE( geom2 ); + BOOST_REQUIRE( geom2->isInitialized() ); + + BOOST_CHECK( geom.isEqual(geom2) ); + BOOST_CHECK( geom2->getProjectionAngleCount() == 4 ); + BOOST_CHECK( geom2->getDetectorCount() == 8 ); + BOOST_CHECK( geom2->getDetectorWidth() == 0.5f ); + BOOST_CHECK( geom2->getProjectionAngle(0) == 0.0f ); + BOOST_CHECK( geom2->getProjectionAngle(1) == 1.0f ); + BOOST_CHECK( geom2->getProjectionAngle(2) == 2.0f ); + BOOST_CHECK( geom2->getProjectionAngle(3) == 3.0f ); + BOOST_CHECK( geom2->getProjectionAngles()[0] == 0.0f ); + BOOST_CHECK( geom2->getProjectionAngles()[3] == 3.0f ); + BOOST_CHECK( geom2->getOriginSourceDistance() == 1.0f ); + BOOST_CHECK( geom2->getOriginDetectorDistance() == 2.0f ); + delete geom2; +} + |