C++ (Cpp) ght_reader_new_mem примеры использования

Пример #1

Файл: pc_patch_ght.c Проект: cyrilleberger/pointcloud

static GhtTreePtr
ght_tree_from_pc_patch(const PCPATCH_GHT *paght)
{
	GhtTreePtr tree;
	GhtReaderPtr reader;
	GhtSchemaPtr ghtschema;

	ghtschema = ght_schema_from_pc_schema(paght->schema);
	if ( ! ghtschema )
		return NULL;

	if ( GHT_OK != ght_reader_new_mem(paght->ght, paght->ghtsize, ghtschema, &reader) )
		return NULL;

	if ( GHT_OK != ght_tree_read(reader, &tree) )
		return NULL;

	return tree;
}

Пример #2

Файл: cu_ght_core.c Проект: nsabosh/libght

static void
test_ght_node_serialization(void)
{
    GhtCoordinate coord;
    int x, y;
    GhtNode *node1, *node2, *node3;
    GhtErr err;
    GhtWriter *writer;
    GhtReader *reader;
    const uint8_t *bytes;
    size_t bytes_size;
    stringbuffer_t *sb1, *sb2;
    GhtAttribute *attr;
    char *hex;

    /* ght_node_new_from_coordinate(const GhtCoordinate *coord, unsigned int resolution, GhtNode **node); */
    coord.x = -127.4123;
    coord.y = 49.23141;
    err = ght_node_new_from_coordinate(&coord, GHT_MAX_HASH_LENGTH, &node1);
    CU_ASSERT_STRING_EQUAL(node1->hash, "c0v2hdm1wpzpy4vtv4");
    CU_ASSERT_EQUAL(err, GHT_OK);

    err = ght_writer_new_mem(&writer);
    err = ght_node_write(node1, writer);
    bytes = bytebuffer_getbytes(writer->bytebuffer);
    bytes_size = bytebuffer_getsize(writer->bytebuffer);
    err = ght_reader_new_mem(bytes, bytes_size, schema, &reader);
    err = ght_node_read(reader, &node2);
    
    CU_ASSERT_STRING_EQUAL(node1->hash, node2->hash);
    ght_node_free(node2);

    /* add a child */
    coord.x = -127.4125;
    coord.y = 49.23144;
    err = ght_node_new_from_coordinate(&coord, GHT_MAX_HASH_LENGTH, &node3);
    err = ght_attribute_new_from_double(schema->dims[3], 88.88, &attr);
    err = ght_node_add_attribute(node3, attr);
    err = ght_node_insert_node(node1, node3, GHT_DUPES_YES);
    CU_ASSERT_EQUAL(err, GHT_OK);

    /* add another (dupe) child */
    err = ght_node_new_from_coordinate(&coord, GHT_MAX_HASH_LENGTH, &node3);
    err = ght_node_insert_node(node1, node3, GHT_DUPES_YES);

    /* add another (dupe) child with an attribute */
    err = ght_node_new_from_coordinate(&coord, GHT_MAX_HASH_LENGTH, &node3);
    err = ght_attribute_new_from_double(schema->dims[2], 99.99, &attr);
    err = ght_node_add_attribute(node3, attr);
    err = ght_node_insert_node(node1, node3, GHT_DUPES_YES);
    
    sb1 = stringbuffer_create();
    err = ght_node_to_string(node1, sb1, 0);
    // printf("ORIGINAL\n%s\n", stringbuffer_getstring(sb1));

    err = ght_writer_new_mem(&writer);
    err = ght_node_write(node1, writer);
    bytes = bytebuffer_getbytes(writer->bytebuffer);
    bytes_size = bytebuffer_getsize(writer->bytebuffer);

    err = hexbytes_from_bytes(bytes, bytes_size, &hex);
    CU_ASSERT_STRING_EQUAL("086330763268646D3100020A77707A7079347674763400000A6374643463637839796201035800020000000001020F27000000", hex);
    // printf("\n\n%s\n", hex);
    
    err = ght_reader_new_mem(bytes, bytes_size, schema, &reader);
    err = ght_node_read(reader, &node2);
    
    sb2 = stringbuffer_create();
    err = ght_node_to_string(node2, sb2, 0);
    // printf("COPY\n%s\n", stringbuffer_getstring(sb2));
    
    CU_ASSERT_STRING_EQUAL(stringbuffer_getstring(sb1), stringbuffer_getstring(sb2));
    stringbuffer_destroy(sb2);
    stringbuffer_destroy(sb1);
    ght_node_free(node1);
    ght_node_free(node2);
    ght_writer_free(writer);
    ght_reader_free(reader);
}