test_gdal_rasterize()

static void test_gdal_rasterize ( )

static

Definition at line 49 of file cu_gdal.c.

References cu_free_raster(), PT_8BUI, rtrowdump::raster, rt_raster_gdal_rasterize(), rt_raster_get_height(), rt_raster_get_num_bands(), rt_raster_get_width(), rt_raster_get_x_offset(), rt_raster_get_y_offset(), rtalloc(), rtdealloc(), and genraster::value.

Referenced by gdal_suite_setup().

                                  {
        rt_raster raster;
        char srs[] = "PROJCS[\"unnamed\",GEOGCS[\"unnamed ellipse\",DATUM[\"unknown\",SPHEROID[\"unnamed\",6370997,0]],PRIMEM[\"Greenwich\",0],UNIT[\"degree\",0.0174532925199433]],PROJECTION[\"Lambert_Azimuthal_Equal_Area\"],PARAMETER[\"latitude_of_center\",45],PARAMETER[\"longitude_of_center\",-100],PARAMETER[\"false_easting\",0],PARAMETER[\"false_northing\",0],UNIT[\"Meter\",1],AUTHORITY[\"EPSG\",\"2163\"]]";
        const char wkb_hex[] = "010300000001000000050000000000000080841ec100000000600122410000000080841ec100000000804f22410000000040e81dc100000000804f22410000000040e81dc100000000600122410000000080841ec10000000060012241";
        const char *pos = wkb_hex;
        unsigned char *wkb = NULL;
        int wkb_len = 0;
        int i;
        double scale_x = 100;
        double scale_y = -100;

        rt_pixtype pixtype[] = {PT_8BUI};
        double init[] = {0};
        double value[] = {1};
        double nodata[] = {0};
        uint8_t nodata_mask[] = {1};

        /* hex to byte */
        wkb_len = (int) ceil(((double) strlen(wkb_hex)) / 2);
        wkb = (unsigned char *) rtalloc(sizeof(unsigned char) * wkb_len);
        for (i = 0; i < wkb_len; i++) {
                sscanf(pos, "%2hhx", &wkb[i]);
                pos += 2;
        }

        raster = rt_raster_gdal_rasterize(
                wkb,
                wkb_len, srs,
                1, pixtype,
                init, value,
                nodata, nodata_mask,
                NULL, NULL,
                &scale_x, &scale_y,
                NULL, NULL,
                NULL, NULL,
                NULL, NULL,
                NULL
        );

        CU_ASSERT(raster != NULL);
        CU_ASSERT_EQUAL(rt_raster_get_width(raster), 100);
        CU_ASSERT_EQUAL(rt_raster_get_height(raster), 100);
        CU_ASSERT_NOT_EQUAL(rt_raster_get_num_bands(raster), 0);
        CU_ASSERT_DOUBLE_EQUAL(rt_raster_get_x_offset(raster), -500000, DBL_EPSILON);
        CU_ASSERT_DOUBLE_EQUAL(rt_raster_get_y_offset(raster), 600000, DBL_EPSILON);

        rtdealloc(wkb);
        cu_free_raster(raster);
}

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