diff options
Diffstat (limited to 'libtests/matrix.cc')
-rw-r--r-- | libtests/matrix.cc | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/libtests/matrix.cc b/libtests/matrix.cc new file mode 100644 index 00000000..d27e96cf --- /dev/null +++ b/libtests/matrix.cc @@ -0,0 +1,55 @@ +#include <qpdf/QPDFMatrix.hh> +#include <qpdf/QUtil.hh> +#include <assert.h> +#include <iostream> + +static void check(QPDFMatrix const& m, std::string const& exp) +{ + std::string u = m.unparse(); + if (u != exp) + { + std::cout << "got " << u << ", wanted " << exp << std::endl; + } +} + +static void check_xy(double x, double y, std::string const& exp) +{ + std::string u = (QUtil::double_to_string(x, 2) + " " + + QUtil::double_to_string(y, 2)); + if (u != exp) + { + std::cout << "got " << u << ", wanted " << exp << std::endl; + } +} + +int main() +{ + QPDFMatrix m; + check(m, "1.00000 0.00000 0.00000 1.00000 0.00000 0.00000"); + m.translate(10, 20); + check(m, "1.00000 0.00000 0.00000 1.00000 10.00000 20.00000"); + m.scale(1.5, 2); + check(m, "1.50000 0.00000 0.00000 2.00000 10.00000 20.00000"); + m.translate(30, 40); + check(m, "1.50000 0.00000 0.00000 2.00000 55.00000 100.00000"); + m.concat(QPDFMatrix(1, 2, 3, 4, 5, 6)); + check(m, "1.50000 4.00000 4.50000 8.00000 62.50000 112.00000"); + m.rotatex90(90); + check(m, "4.50000 8.00000 -1.50000 -4.00000 62.50000 112.00000"); + m.rotatex90(180); + check(m, "-4.50000 -8.00000 1.50000 4.00000 62.50000 112.00000"); + m.rotatex90(270); + check(m, "-1.50000 -4.00000 -4.50000 -8.00000 62.50000 112.00000"); + m.rotatex90(180); + check(m, "1.50000 4.00000 4.50000 8.00000 62.50000 112.00000"); + m.rotatex90(12345); + check(m, "1.50000 4.00000 4.50000 8.00000 62.50000 112.00000"); + + double xp = 0; + double yp = 0; + m.transform(240, 480, xp, yp); + check_xy(xp, yp, "2582.50 4912.00"); + + std::cout << "matrix tests done" << std::endl; + return 0; +} |