58 lines
2.1 KiB
C++
58 lines
2.1 KiB
C++
//
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// Created by jholder on 21.10.21.
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//
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#include "Rod2d.hpp"
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#include <catch2/catch.hpp>
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#include <Eigen/Dense>
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TEST_CASE("Rods") {
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Rod2d sphere(1);
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Rod2d rod(2);
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SECTION("Checking translation") {
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rod.setPos(rod.getPos() + Eigen::Vector2d(1, -1));
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auto newPos = rod.getPos();
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REQUIRE(newPos[0] == 1);
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REQUIRE(newPos[1] == -1);
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REQUIRE(sphere.getDiff_Sqrt()(0,0) == 1.0);
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REQUIRE(sphere.getDiff_Sqrt()(0,1) == 0.0);
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REQUIRE(sphere.getDiff_Sqrt()(1,0) == 0.0);
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REQUIRE(sphere.getDiff_Sqrt()(1,1) == 1.0);
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}SECTION("Checking rotation") {
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SECTION("Forwards == e 90"){
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//
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// =====
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//
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rod.setE({0, 1}); // Lab system is 90 degree rotated
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auto test = Eigen::Vector2d ({1,0});
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auto erg = (rod.getE_Base_matrix()*test).normalized();
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auto e = rod.getE();
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REQUIRE(erg.isApprox(e));
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}
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SECTION("Forwards == e 45"){
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// o
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// o
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// o
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rod.setE(Eigen::Vector2d ({1,1}).normalized()); // Lab system is 90 degree rotated
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auto test = Eigen::Vector2d ({1,0});
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auto erg = (rod.getE_Base_matrix()*test).normalized();
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auto e = rod.getE();
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REQUIRE(erg.isApprox(e));
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}
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}
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SECTION("Angle Stuff"){
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const Eigen::Vector2d unitVec = {1, 0};
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double f1 = GENERATE(take(10,random(-100,100)));
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double f2 = GENERATE(take(10,random(0,100)));
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sphere.setE(Eigen::Vector2d({f1,f2}).normalized());
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Eigen::Rotation2D rotMat(acos(unitVec.dot(sphere.getE())));
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CHECK(rotMat.toRotationMatrix()(0,0) == Approx(sphere.getE_Base_matrix()(0,0)).epsilon(10e-10));
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CHECK(rotMat.toRotationMatrix()(1,0) == Approx(sphere.getE_Base_matrix()(1,0)).epsilon(10e-10));
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CHECK(rotMat.toRotationMatrix()(0,1) == Approx(sphere.getE_Base_matrix()(0,1)).epsilon(10e-10));
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CHECK(rotMat.toRotationMatrix()(1,1) == Approx(sphere.getE_Base_matrix()(1,1)).epsilon(10e-10));
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}
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} |