test_raster_compute_skewed_raster()

static void test_raster_compute_skewed_raster ( )

static

Definition at line 178 of file cu_raster_misc.c.

References cu_free_raster(), rt_envelope::MaxX, rt_envelope::MaxY, rt_envelope::MinX, rt_envelope::MinY, rtpixdump::rast, raster_misc_suite_setup(), rt_raster_compute_skewed_raster(), rt_raster_get_height(), rt_raster_get_width(), rt_raster_get_x_offset(), rt_raster_get_y_offset(), rt_envelope::UpperLeftX, and rt_envelope::UpperLeftY.

Referenced by raster_misc_suite_setup().

                                                {
        rt_envelope extent;
        rt_raster rast;
        double skew[2] = {0.25, 0.25};
        double scale[2] = {1, -1};

        extent.MinX = 0;
        extent.MaxY = 0;
        extent.MaxX = 2;
        extent.MinY = -2;
        extent.UpperLeftX = extent.MinX;
        extent.UpperLeftY = extent.MaxY;

        rast = rt_raster_compute_skewed_raster(
                extent,
                skew,
                scale,
                0
        );

        CU_ASSERT(rast != NULL);
        CU_ASSERT_EQUAL(rt_raster_get_width(rast), 2);
        CU_ASSERT_EQUAL(rt_raster_get_height(rast), 3);
        CU_ASSERT_DOUBLE_EQUAL(rt_raster_get_x_offset(rast), -0.5, DBL_EPSILON);
        CU_ASSERT_DOUBLE_EQUAL(rt_raster_get_y_offset(rast), 0, DBL_EPSILON);

        cu_free_raster(rast);
}

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