test_raster_same_alignment()

static void test_raster_same_alignment ( )

static

Definition at line 4728 of file cu_spatial_relationship.c.

References cu_free_raster(), ES_NONE, rt_raster_new(), rt_raster_same_alignment(), rt_raster_set_offsets(), rt_raster_set_scale(), rt_raster_set_skews(), and spatial_relationship_suite_setup().

Referenced by spatial_relationship_suite_setup().

                                         {
        rt_raster rast1;
        rt_raster rast2;
        int rtn;
        int aligned;
        char *reason;

        rast1 = rt_raster_new(2, 2);
        CU_ASSERT(rast1 != NULL);
        rt_raster_set_scale(rast1, 1, 1);

        rast2 = rt_raster_new(10, 10);
        CU_ASSERT(rast2 != NULL);
        rt_raster_set_scale(rast2, 1, 1);

        rtn = rt_raster_same_alignment(rast1, rast2, &aligned, NULL);
        CU_ASSERT_EQUAL(rtn, ES_NONE);
        CU_ASSERT_NOT_EQUAL(aligned, 0);

        rt_raster_set_scale(rast2, 0.1, 0.1);
        rtn = rt_raster_same_alignment(rast1, rast2, &aligned, &reason);
        CU_ASSERT_EQUAL(rtn, ES_NONE);
        CU_ASSERT_EQUAL(aligned, 0);
        CU_ASSERT_STRING_EQUAL(reason, "The rasters have different scales on the X axis");
        rt_raster_set_scale(rast2, 1, 1);

        rt_raster_set_skews(rast2, -0.5, 0.5);
        rtn = rt_raster_same_alignment(rast1, rast2, &aligned, &reason);
        CU_ASSERT_EQUAL(rtn, ES_NONE);
        CU_ASSERT_EQUAL(aligned, 0);
        CU_ASSERT_STRING_EQUAL(reason, "The rasters have different skews on the X axis");
        rt_raster_set_skews(rast2, 0, 0);

        rt_raster_set_offsets(rast2, 1, 1);
        rtn = rt_raster_same_alignment(rast1, rast2, &aligned, NULL);
        CU_ASSERT_EQUAL(rtn, ES_NONE);
        CU_ASSERT_NOT_EQUAL(aligned, 0);

        rt_raster_set_offsets(rast2, 2, 3);
        rtn = rt_raster_same_alignment(rast1, rast2, &aligned, NULL);
        CU_ASSERT_EQUAL(rtn, ES_NONE);
        CU_ASSERT_NOT_EQUAL(aligned, 0);

        rt_raster_set_offsets(rast2, 0.1, 0.1);
        rtn = rt_raster_same_alignment(rast1, rast2, &aligned, &reason);
        CU_ASSERT_EQUAL(rtn, ES_NONE);
        CU_ASSERT_EQUAL(aligned, 0);
        CU_ASSERT_STRING_EQUAL(reason, "The rasters (pixel corner coordinates) are not aligned");

        cu_free_raster(rast2);
        cu_free_raster(rast1);
}

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