From b2fc6c70434674d74551c3a6c01ffb3233499312 Mon Sep 17 00:00:00 2001
From: Willem Jan Palenstijn <WillemJan.Palenstijn@uantwerpen.be>
Date: Mon, 1 Jul 2013 22:34:11 +0000
Subject: Update version to 1.3

---
 tests/test_FanFlatProjectionGeometry2D.cpp | 119 +++++++++++++++++++++++++++++
 1 file changed, 119 insertions(+)
 create mode 100644 tests/test_FanFlatProjectionGeometry2D.cpp

(limited to 'tests/test_FanFlatProjectionGeometry2D.cpp')

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;
+}
+
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