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ðŸ“ ..
ðŸ“„ aligned.h(1.11 KB)
ðŸ“„ aria_backup.h(1.51 KB)
ðŸ“„ assume_aligned.h(2.29 KB)
ðŸ“ atomic
ðŸ“„ authors.h(9.9 KB)
ðŸ“„ backup.h(1.66 KB)
ðŸ“„ bounded_queue.h(5.95 KB)
ðŸ“„ client_settings.h(1.89 KB)
ðŸ“„ compat56.h(2.23 KB)
ðŸ“„ config.h(14.23 KB)
ðŸ“„ contributors.h(4.76 KB)
ðŸ“„ create_options.h(4.42 KB)
ðŸ“„ create_tmp_table.h(2.74 KB)
ðŸ“„ cset_narrowing.h(3.88 KB)
ðŸ“„ custom_conf.h(1.06 KB)
ðŸ“„ datadict.h(1.66 KB)
ðŸ“„ ddl_log.h(12.39 KB)
ðŸ“„ debug.h(1.21 KB)
ðŸ“„ debug_sync.h(2 KB)
ðŸ“„ derived_handler.h(2.32 KB)
ðŸ“„ derror.h(980 B)
ðŸ“„ des_key_file.h(1.21 KB)
ðŸ“„ discover.h(1.53 KB)
ðŸ“„ dur_prop.h(1.06 KB)
ðŸ“„ embedded_priv.h(1.69 KB)
ðŸ“„ event_data_objects.h(4.09 KB)
ðŸ“„ event_db_repository.h(3.56 KB)
ðŸ“„ event_parse_data.h(2.83 KB)
ðŸ“„ event_queue.h(3.36 KB)
ðŸ“„ event_scheduler.h(3.21 KB)
ðŸ“„ events.h(4.59 KB)
ðŸ“„ field.h(215.25 KB)
ðŸ“„ field_comp.h(1.15 KB)
ðŸ“„ filesort.h(7.11 KB)
ðŸ“„ filesort_utils.h(8 KB)
ðŸ“„ ft_global.h(3.04 KB)
ðŸ“„ gcalc_slicescan.h(16.87 KB)
ðŸ“„ gcalc_tools.h(11.62 KB)
ðŸ“„ grant.h(2.69 KB)
ðŸ“„ group_by_handler.h(3.45 KB)
ðŸ“„ gstream.h(2.38 KB)
ðŸ“„ ha_handler_stats.h(2.28 KB)
ðŸ“„ ha_partition.h(62.9 KB)
ðŸ“„ ha_sequence.h(6.1 KB)
ðŸ“„ handle_connections_win.h(884 B)
ðŸ“„ handler.h(196.46 KB)
ðŸ“„ hash.h(4.34 KB)
ðŸ“„ hash_filo.h(5.55 KB)
ðŸ“„ heap.h(9.26 KB)
ðŸ“„ hostname.h(5.29 KB)
ðŸ“„ ilist.h(6.88 KB)
ðŸ“„ init.h(852 B)
ðŸ“„ innodb_priv.h(1.29 KB)
ðŸ“„ item.h(272.64 KB)
ðŸ“„ item_cmpfunc.h(131.86 KB)
ðŸ“„ item_create.h(11.23 KB)
ðŸ“„ item_func.h(133.45 KB)
ðŸ“„ item_geofunc.h(37.99 KB)
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ðŸ“„ item_row.h(5.1 KB)
ðŸ“„ item_strfunc.h(70.55 KB)
ðŸ“„ item_subselect.h(57.77 KB)
ðŸ“„ item_sum.h(70.59 KB)
ðŸ“„ item_timefunc.h(63.1 KB)
ðŸ“„ item_vers.h(4.23 KB)
ðŸ“„ item_windowfunc.h(33.51 KB)
ðŸ“„ item_xmlfunc.h(4.5 KB)
ðŸ“„ json_table.h(9.28 KB)
ðŸ“„ key.h(2.08 KB)
ðŸ“„ keycaches.h(1.95 KB)
ðŸ“„ lex.h(29.13 KB)
ðŸ“„ lex_string.h(3.97 KB)
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ðŸ“„ lf.h(6.31 KB)
ðŸ“„ lock.h(2.15 KB)
ðŸ“„ log.h(45 KB)
ðŸ“„ log_event.h(182.04 KB)
ðŸ“„ log_event_data_type.h(1.85 KB)
ðŸ“„ log_event_old.h(19.37 KB)
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ðŸ“„ maria.h(5.73 KB)
ðŸ“„ mariadb.h(1.25 KB)
ðŸ“„ mdl.h(37.57 KB)
ðŸ“„ mem_root_array.h(6.94 KB)
ðŸ“„ message.h(1.17 KB)
ðŸ“„ multi_range_read.h(22.64 KB)
ðŸ“„ my_alarm.h(2.37 KB)
ðŸ“„ my_apc.h(4.64 KB)
ðŸ“„ my_atomic.h(7.11 KB)
ðŸ“„ my_atomic_wrapper.h(2.98 KB)
ðŸ“„ my_base.h(26.57 KB)
ðŸ“„ my_bit.h(6.05 KB)
ðŸ“„ my_bitmap.h(5.74 KB)
ðŸ“„ my_check_opt.h(2.56 KB)
ðŸ“„ my_compare.h(10.93 KB)
ðŸ“„ my_counter.h(1.68 KB)
ðŸ“„ my_cpu.h(4.74 KB)
ðŸ“„ my_crypt.h(904 B)
ðŸ“„ my_decimal.h(14.15 KB)
ðŸ“„ my_default.h(1.84 KB)
ðŸ“„ my_handler_errors.h(4.77 KB)
ðŸ“„ my_json_writer.h(17.95 KB)
ðŸ“„ my_libwrap.h(1.16 KB)
ðŸ“„ my_md5.h(1.45 KB)
ðŸ“„ my_minidump.h(848 B)
ðŸ“„ my_nosys.h(1.4 KB)
ðŸ“„ my_rdtsc.h(8.23 KB)
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ðŸ“„ my_service_manager.h(2 KB)
ðŸ“„ my_stack_alloc.h(6.34 KB)
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ðŸ“„ my_time.h(10.22 KB)
ðŸ“„ my_tree.h(3.9 KB)
ðŸ“„ my_uctype.h(67.9 KB)
ðŸ“„ my_user.h(1.1 KB)
ðŸ“„ myisam.h(17.1 KB)
ðŸ“„ myisamchk.h(4.61 KB)
ðŸ“„ myisammrg.h(4.78 KB)
ðŸ“„ myisampack.h(14.58 KB)
ðŸ“„ mysqld.h(39.55 KB)
ðŸ“„ mysqld_default_groups.h(204 B)
ðŸ“„ mysqld_suffix.h(1.17 KB)
ðŸ“„ mysys_err.h(2.95 KB)
ðŸ“„ opt_range.h(58.19 KB)
ðŸ“„ opt_subselect.h(14.21 KB)
ðŸ“„ opt_trace.h(8.29 KB)
ðŸ“„ opt_trace_context.h(3.21 KB)
ðŸ“„ parse_file.h(4.28 KB)
ðŸ“„ partition_element.h(5.09 KB)
ðŸ“„ partition_info.h(18.85 KB)
ðŸ“„ password.h(1.14 KB)
ðŸ“„ pfs_file_provider.h(3.08 KB)
ðŸ“„ pfs_idle_provider.h(1.35 KB)
ðŸ“„ pfs_memory_provider.h(1.59 KB)
ðŸ“„ pfs_metadata_provider.h(1.85 KB)
ðŸ“„ pfs_socket_provider.h(2.21 KB)
ðŸ“„ pfs_stage_provider.h(1.52 KB)
ðŸ“„ pfs_statement_provider.h(4.25 KB)
ðŸ“„ pfs_table_provider.h(2.56 KB)
ðŸ“„ pfs_thread_provider.h(5.43 KB)
ðŸ“„ pfs_transaction_provider.h(2.78 KB)
ðŸ“„ privilege.h(27.97 KB)
ðŸ“„ probes_mysql.h(973 B)
ðŸ“„ probes_mysql_dtrace.h(32.23 KB)
ðŸ“„ probes_mysql_nodtrace.h(4.89 KB)
ðŸ“„ procedure.h(6.63 KB)
ðŸ“„ protocol.h(12.2 KB)
ðŸ“„ proxy_protocol.h(548 B)
ðŸ“„ queues.h(3.4 KB)
ðŸ“„ records.h(3.07 KB)
ðŸ“„ repl_failsafe.h(1.55 KB)
ðŸ“„ replication.h(15.73 KB)
ðŸ“„ rijndael.h(1.67 KB)
ðŸ“„ rowid_filter.h(15.11 KB)
ðŸ“„ rpl_constants.h(3.28 KB)
ðŸ“„ rpl_filter.h(4.43 KB)
ðŸ“„ rpl_gtid.h(13.36 KB)
ðŸ“„ rpl_injector.h(9.4 KB)
ðŸ“„ rpl_mi.h(14.64 KB)
ðŸ“„ rpl_parallel.h(17.05 KB)
ðŸ“„ rpl_record.h(1.55 KB)
ðŸ“„ rpl_record_old.h(1.37 KB)
ðŸ“„ rpl_reporting.h(3.63 KB)
ðŸ“„ rpl_rli.h(31.98 KB)
ðŸ“„ rpl_tblmap.h(3.1 KB)
ðŸ“„ rpl_utility.h(9.4 KB)
ðŸ“„ scheduler.h(3.12 KB)
ðŸ“„ scope.h(4.29 KB)
ðŸ“„ select_handler.h(2.18 KB)
ðŸ“„ semisync.h(2.23 KB)
ðŸ“„ semisync_master.h(24.96 KB)
ðŸ“„ semisync_master_ack_receiver.h(8.5 KB)
ðŸ“„ semisync_slave.h(3.65 KB)
ðŸ“„ service_versions.h(2 KB)
ðŸ“„ session_tracker.h(13.94 KB)
ðŸ“„ set_var.h(16.16 KB)
ðŸ“„ slave.h(11.99 KB)
ðŸ“„ socketpair.h(842 B)
ðŸ“„ source_revision.h(67 B)
ðŸ“„ sp.h(22.06 KB)
ðŸ“„ sp_cache.h(2 KB)
ðŸ“„ sp_head.h(63 KB)
ðŸ“„ sp_pcontext.h(24.31 KB)
ðŸ“„ sp_rcontext.h(14 KB)
ðŸ“„ span.h(3.84 KB)
ðŸ“„ spatial.h(21.78 KB)
ðŸ“„ sql_acl.h(13.8 KB)
ðŸ“„ sql_admin.h(2.85 KB)
ðŸ“„ sql_alloc.h(1.69 KB)
ðŸ“„ sql_alter.h(14.92 KB)
ðŸ“„ sql_analyse.h(10.86 KB)
ðŸ“„ sql_analyze_stmt.h(12.38 KB)
ðŸ“„ sql_array.h(6.71 KB)
ðŸ“„ sql_audit.h(13.62 KB)
ðŸ“„ sql_base.h(25.27 KB)
ðŸ“„ sql_basic_types.h(9.3 KB)
ðŸ“„ sql_binlog.h(895 B)
ðŸ“„ sql_bitmap.h(7.66 KB)
ðŸ“„ sql_bootstrap.h(1.77 KB)
ðŸ“„ sql_cache.h(21.17 KB)
ðŸ“„ sql_callback.h(1.51 KB)
ðŸ“„ sql_class.h(261.11 KB)
ðŸ“„ sql_cmd.h(9.2 KB)
ðŸ“„ sql_connect.h(3.99 KB)
ðŸ“„ sql_const.h(10.96 KB)
ðŸ“„ sql_crypt.h(1.4 KB)
ðŸ“„ sql_cte.h(16.15 KB)
ðŸ“„ sql_cursor.h(2.26 KB)
ðŸ“„ sql_db.h(2.38 KB)
ðŸ“„ sql_debug.h(5.51 KB)
ðŸ“„ sql_delete.h(1.31 KB)
ðŸ“„ sql_derived.h(1.26 KB)
ðŸ“„ sql_digest.h(3.73 KB)
ðŸ“„ sql_digest_stream.h(1.53 KB)
ðŸ“„ sql_do.h(954 B)
ðŸ“„ sql_error.h(38.66 KB)
ðŸ“„ sql_explain.h(28.34 KB)
ðŸ“„ sql_expression_cache.h(4.26 KB)
ðŸ“„ sql_get_diagnostics.h(7.68 KB)
ðŸ“„ sql_handler.h(2.84 KB)
ðŸ“„ sql_help.h(995 B)
ðŸ“„ sql_hset.h(3.32 KB)
ðŸ“„ sql_i_s.h(8.04 KB)
ðŸ“„ sql_insert.h(2.59 KB)
ðŸ“„ sql_join_cache.h(47.53 KB)
ðŸ“„ sql_lex.h(168.5 KB)
ðŸ“„ sql_lifo_buffer.h(9.45 KB)
ðŸ“„ sql_limit.h(3.11 KB)
ðŸ“„ sql_list.h(21.93 KB)
ðŸ“„ sql_load.h(1.25 KB)
ðŸ“„ sql_locale.h(2.64 KB)
ðŸ“„ sql_manager.h(960 B)
ðŸ“„ sql_mode.h(6.58 KB)
ðŸ“„ sql_parse.h(8.43 KB)
ðŸ“„ sql_partition.h(11.79 KB)
ðŸ“„ sql_partition_admin.h(5.8 KB)
ðŸ“„ sql_plist.h(7.55 KB)
ðŸ“„ sql_plugin.h(7.37 KB)
ðŸ“„ sql_plugin_compat.h(2.18 KB)
ðŸ“„ sql_prepare.h(11.14 KB)
ðŸ“„ sql_priv.h(18.16 KB)
ðŸ“„ sql_profile.h(7.63 KB)
ðŸ“„ sql_reload.h(1.01 KB)
ðŸ“„ sql_rename.h(982 B)
ðŸ“„ sql_repl.h(2.97 KB)
ðŸ“„ sql_schema.h(3.23 KB)
ðŸ“„ sql_select.h(86.81 KB)
ðŸ“„ sql_sequence.h(5.06 KB)
ðŸ“„ sql_servers.h(1.74 KB)
ðŸ“„ sql_show.h(9.39 KB)
ðŸ“„ sql_signal.h(3.28 KB)
ðŸ“„ sql_sort.h(21.45 KB)
ðŸ“„ sql_statistics.h(12.16 KB)
ðŸ“„ sql_string.h(38.84 KB)
ðŸ“„ sql_table.h(9.39 KB)
ðŸ“„ sql_tablespace.h(956 B)
ðŸ“„ sql_test.h(1.55 KB)
ðŸ“„ sql_time.h(8.18 KB)
ðŸ“„ sql_trigger.h(12.04 KB)
ðŸ“„ sql_truncate.h(2.03 KB)
ðŸ“„ sql_tvc.h(2.36 KB)
ðŸ“„ sql_type.h(288.51 KB)
ðŸ“„ sql_type_fixedbin.h(62.81 KB)
ðŸ“„ sql_type_fixedbin_storage.h(5.34 KB)
ðŸ“„ sql_type_geom.h(18.64 KB)
ðŸ“„ sql_type_int.h(9.77 KB)
ðŸ“„ sql_type_json.h(6.01 KB)
ðŸ“„ sql_type_real.h(1.23 KB)
ðŸ“„ sql_type_string.h(1.59 KB)
ðŸ“„ sql_udf.h(4.74 KB)
ðŸ“„ sql_union.h(1.04 KB)
ðŸ“„ sql_update.h(1.88 KB)
ðŸ“„ sql_view.h(2.41 KB)
ðŸ“„ sql_window.h(6.65 KB)
ðŸ“„ ssl_compat.h(3.07 KB)
ðŸ“„ strfunc.h(2.22 KB)
ðŸ“„ structs.h(25.76 KB)
ðŸ“„ sys_vars_shared.h(2.67 KB)
ðŸ“„ t_ctype.h(5.51 KB)
ðŸ“„ table.h(113.03 KB)
ðŸ“„ table_cache.h(4.13 KB)
ðŸ“„ thr_alarm.h(2.86 KB)
ðŸ“„ thr_lock.h(7.18 KB)
ðŸ“„ thr_malloc.h(1.17 KB)
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ðŸ“„ thread_cache.h(5.77 KB)
ðŸ“„ threadpool.h(4.7 KB)
ðŸ“„ threadpool_generic.h(3.88 KB)
ðŸ“„ threadpool_winsockets.h(2.24 KB)
ðŸ“„ transaction.h(1.43 KB)
ðŸ“„ tzfile.h(4.9 KB)
ðŸ“„ tztime.h(3.32 KB)
ðŸ“„ uniques.h(4.12 KB)
ðŸ“„ unireg.h(7.54 KB)
ðŸ“„ vers_string.h(2.47 KB)
ðŸ“„ violite.h(9.85 KB)
ðŸ“„ waiting_threads.h(4.43 KB)
ðŸ“„ welcome_copyright_notice.h(1.19 KB)
ðŸ“„ win_tzname_data.h(6.35 KB)
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ðŸ“„ wsrep_binlog.h(3.36 KB)
ðŸ“„ wsrep_client_service.h(2.5 KB)
ðŸ“„ wsrep_client_state.h(1.53 KB)
ðŸ“„ wsrep_condition_variable.h(1.45 KB)
ðŸ“„ wsrep_high_priority_service.h(4.8 KB)
ðŸ“„ wsrep_mutex.h(1.19 KB)
ðŸ“„ wsrep_mysqld.h(20.64 KB)
ðŸ“„ wsrep_mysqld_c.h(1.2 KB)
ðŸ“„ wsrep_on.h(1.68 KB)
ðŸ“„ wsrep_priv.h(1.6 KB)
ðŸ“„ wsrep_schema.h(4.83 KB)
ðŸ“„ wsrep_server_service.h(3.55 KB)
ðŸ“„ wsrep_server_state.h(2.23 KB)
ðŸ“„ wsrep_sst.h(3.86 KB)
ðŸ“„ wsrep_storage_service.h(1.77 KB)
ðŸ“„ wsrep_thd.h(10.9 KB)
ðŸ“„ wsrep_trans_observer.h(17.69 KB)
ðŸ“„ wsrep_types.h(997 B)
ðŸ“„ wsrep_utils.h(9.07 KB)
ðŸ“„ wsrep_var.h(4.5 KB)
ðŸ“„ wsrep_xid.h(1.51 KB)
ðŸ“„ xa.h(1.8 KB)

Editing: spatial.h

/*
   Copyright (c) 2002, 2013, Oracle and/or its affiliates.
   Copyright (c) 2009, 2013, Monty Program Ab.

This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; version 2 of the License.

This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335  USA */

#ifndef _spatial_h
#define _spatial_h

#include "sql_string.h"                         /* String, LEX_STRING */
#include <my_compiler.h>
#include <json_lib.h>

#ifdef HAVE_SPATIAL

class Gis_read_stream;

#include "gcalc_tools.h"

const uint SRID_SIZE= 4;
const uint SIZEOF_STORED_DOUBLE= 8;
const uint POINT_DATA_SIZE= (SIZEOF_STORED_DOUBLE * 2); 
const uint WKB_HEADER_SIZE= 1+4;
const uint32 GET_SIZE_ERROR= ((uint32) -1);

struct st_point_2d
{
  double x;
  double y;
};

struct st_linear_ring
{
  uint32 n_points;
  st_point_2d points;
};

/***************************** MBR *******************************/

/*
  It's ok that a lot of the functions are inline as these are only used once
  in MySQL
*/

struct MBR
{
  double xmin, ymin, xmax, ymax;

MBR()
  {
    xmin= ymin= DBL_MAX;
    xmax= ymax= -DBL_MAX;
  }

MBR(const double xmin_arg, const double ymin_arg,
      const double xmax_arg, const double ymax_arg)
    :xmin(xmin_arg), ymin(ymin_arg), xmax(xmax_arg), ymax(ymax_arg)
  {}

MBR(const st_point_2d &min, const st_point_2d &max)
    :xmin(min.x), ymin(min.y), xmax(max.x), ymax(max.y)
  {}

MBR(const MBR &mbr1, const MBR &mbr2)
    :xmin(mbr1.xmin), ymin(mbr1.ymin), xmax(mbr1.xmax), ymax(mbr1.ymax)
  { add_mbr(&mbr2); }

inline void add_xy(double x, double y)
  {
    /* Not using "else" for proper one point MBR calculation */
    if (x < xmin)
      xmin= x;
    if (x > xmax)
      xmax= x;
    if (y < ymin)
      ymin= y;
    if (y > ymax)
      ymax= y;
  }
  void add_xy(const char *px, const char *py)
  {
    double x, y;
    float8get(x, px);
    float8get(y, py);
    add_xy(x,y);
  }
  void add_mbr(const MBR *mbr)
  {
    if (mbr->xmin < xmin)
      xmin= mbr->xmin;
    if (mbr->xmax > xmax)
      xmax= mbr->xmax;
    if (mbr->ymin < ymin)
      ymin= mbr->ymin;
    if (mbr->ymax > ymax)
      ymax= mbr->ymax;
  }
  void buffer(double d)
  {
    xmin-= d;
    ymin-= d;
    xmax+= d;
    ymax+= d;
  }

int equals(const MBR *mbr)
  {
    /* The following should be safe, even if we compare doubles */
    return ((mbr->xmin == xmin) && (mbr->ymin == ymin) &&
	    (mbr->xmax == xmax) && (mbr->ymax == ymax));
  }

int disjoint(const MBR *mbr)
  {
    /* The following should be safe, even if we compare doubles */
    return ((mbr->xmin > xmax) || (mbr->ymin > ymax) ||
	    (mbr->xmax < xmin) || (mbr->ymax < ymin));
  }

int intersects(const MBR *mbr)
  {
    return !disjoint(mbr);
  }

int touches(const MBR *mbr)
  {
    /* The following should be safe, even if we compare doubles */
    return ((mbr->xmin == xmax || mbr->xmax == xmin) &&
            ((mbr->ymin >= ymin && mbr->ymin <= ymax) ||
             (mbr->ymax >= ymin && mbr->ymax <= ymax))) ||
           ((mbr->ymin == ymax || mbr->ymax == ymin) &&
            ((mbr->xmin >= xmin && mbr->xmin <= xmax) ||
             (mbr->xmax >= xmin && mbr->xmax <= xmax)));
  }

int within(const MBR *mbr);

int contains(const MBR *mbr)
  {
    /* The following should be safe, even if we compare doubles */
    return ((mbr->xmin >= xmin) && (mbr->ymin >= ymin) &&
	    (mbr->xmax <= xmax) && (mbr->ymax <= ymax));
  }

bool inner_point(double x, double y) const
  {
    /* The following should be safe, even if we compare doubles */
    return (xmin<x) && (xmax>x) && (ymin<y) && (ymax>y);
  }

/**
    The dimension maps to an integer as:
    - Polygon -> 2
    - Horizontal or vertical line -> 1
    - Point -> 0
    - Invalid MBR -> -1
  */
  int dimension() const
  {
    int d= 0;

if (xmin > xmax)
      return -1;
    else if (xmin < xmax)
      d++;

if (ymin > ymax)
      return -1;
    else if (ymin < ymax)
      d++;

return d;
  }

int overlaps(const MBR *mbr)
  {
    /*
      overlaps() requires that some point inside *this is also inside
      *mbr, and that both geometries and their intersection are of the
      same dimension.
    */
    int d = dimension();

if (d != mbr->dimension() || d <= 0 || contains(mbr) || within(mbr))
      return 0;

MBR intersection(MY_MAX(xmin, mbr->xmin), MY_MAX(ymin, mbr->ymin),
                     MY_MIN(xmax, mbr->xmax), MY_MIN(ymax, mbr->ymax));

return (d == intersection.dimension());
  }

int valid() const
  { return xmin <= xmax && ymin <= ymax; }
};

/***************************** Geometry *******************************/

struct Geometry_buffer;

class Geometry
{
public:
  Geometry() = default;                              /* Remove gcc warning */
  virtual ~Geometry() = default;                     /* Remove gcc warning */
  static void *operator new(size_t size, void *buffer)
  {
    return buffer;
  }

static void operator delete(void *ptr, void *buffer)
  {}

static void operator delete(void *buffer)
  {}

enum wkbType
  {
    wkb_point= 1,
    wkb_linestring= 2,
    wkb_polygon= 3,
    wkb_multipoint= 4,
    wkb_multilinestring= 5,
    wkb_multipolygon= 6,
    wkb_geometrycollection= 7,
    wkb_last=7
  };
  enum wkbByteOrder
  {
    wkb_xdr= 0,    /* Big Endian */
    wkb_ndr= 1     /* Little Endian */
  };
  enum geojson_errors
  {
    GEOJ_INCORRECT_GEOJSON= 1,
    GEOJ_TOO_FEW_POINTS= 2,
    GEOJ_POLYGON_NOT_CLOSED= 3,
    GEOJ_DIMENSION_NOT_SUPPORTED= 4,
    GEOJ_EMPTY_COORDINATES= 5,
  };

/** Callback which creates Geometry objects on top of a given placement. */
  typedef Geometry *(*create_geom_t)(char *);

class Class_info
  {
  public:
    LEX_STRING m_name;
    LEX_STRING m_geojson_name;
    int m_type_id;
    create_geom_t m_create_func;
    Class_info(const char *name, const char *gejson_name,
               int type_id, create_geom_t create_func);
  };

virtual const Class_info *get_class_info() const=0;
  virtual uint32 get_data_size() const=0;
  virtual bool init_from_wkt(Gis_read_stream *trs, String *wkb)=0;
  /* returns the length of the wkb that was read */
  virtual uint init_from_wkb(const char *wkb, uint len, wkbByteOrder bo,
                             String *res)=0;
  virtual uint init_from_opresult(String *bin,
                                  const char *opres, uint res_len)
  { return init_from_wkb(opres + 4, UINT_MAX32, wkb_ndr, bin) + 4; }
  virtual bool init_from_json(json_engine_t *je, bool er_on_3D, String *wkb)
  { return true; }

virtual bool get_data_as_wkt(String *txt, const char **end) const=0;
  virtual bool get_data_as_json(String *txt, uint max_dec_digits,
                                const char **end) const=0;
  virtual bool get_mbr(MBR *mbr, const char **end) const=0;
  virtual bool dimension(uint32 *dim, const char **end) const=0;
  virtual int get_x(double *x) const { return -1; }
  virtual int get_y(double *y) const { return -1; }
  virtual int geom_length(double *len, const char **end) const  { return -1; }
  virtual int area(double *ar, const char **end) const { return -1;}
  virtual int is_closed(int *closed) const { return -1; }
  virtual int num_interior_ring(uint32 *n_int_rings) const { return -1; }
  virtual int num_points(uint32 *n_points) const { return -1; }
  virtual int num_geometries(uint32 *num) const { return -1; }
  virtual int start_point(String *point) const { return -1; }
  virtual int end_point(String *point) const { return -1; }
  virtual int exterior_ring(String *ring) const { return -1; }
  virtual int centroid(String *point) const { return -1; }
  virtual int point_n(uint32 num, String *result) const { return -1; }
  virtual int interior_ring_n(uint32 num, String *result) const { return -1; }
  virtual int geometry_n(uint32 num, String *result) const { return -1; }
  virtual int store_shapes(Gcalc_shape_transporter *trn) const=0;

public:
  static Geometry *create_by_typeid(Geometry_buffer *buffer, int type_id);

static Geometry *construct(Geometry_buffer *buffer,
                             const char *data, uint32 data_len);
  static Geometry *create_from_wkt(Geometry_buffer *buffer,
				   Gis_read_stream *trs, String *wkt,
				   bool init_stream=1);
  static Geometry *create_from_wkb(Geometry_buffer *buffer,
                                   const char *wkb, uint32 len, String *res);
  static Geometry *create_from_json(Geometry_buffer *buffer, json_engine_t *je,
                                    bool er_on_3D, String *res);
  static Geometry *create_from_opresult(Geometry_buffer *g_buf,
                                  String *res, Gcalc_result_receiver &rr);
  static uint get_key_image_itMBR(LEX_CSTRING &src, uchar *buff, uint length);
  int as_wkt(String *wkt, const char **end);
  int as_json(String *wkt, uint max_dec_digits, const char **end);
  int bbox_as_json(String *wkt);

inline void set_data_ptr(const char *data, uint32 data_len)
  {
    m_data= data;
    m_data_end= data + data_len;
  }

inline void shift_wkb_header()
  {
    m_data+= WKB_HEADER_SIZE;
  }

const char *get_data_ptr() const
  {
    return m_data;
  }

bool envelope(String *result) const;
  static Class_info *ci_collection[wkb_last+1];

static bool create_point(String *result, double x, double y);
protected:
  static Class_info *find_class(int type_id)
  {
    return ((type_id < wkb_point) || (type_id > wkb_last)) ?
      NULL : ci_collection[type_id];
  }  
  static Class_info *find_class(const char *name, size_t len);
  const char *append_points(String *txt, uint32 n_points,
			    const char *data, uint32 offset) const;
  bool create_point(String *result, const char *data) const;
  const char *get_mbr_for_points(MBR *mbr, const char *data, uint offset)
    const;

public:
  /**
     Check if there're enough data remaining as requested

@arg cur_data     pointer to the position in the binary form
     @arg data_amount  number of points expected
     @return           true if not enough data
  */
  inline bool no_data(const char *cur_data, size_t data_amount) const
  {
    return (cur_data + data_amount > m_data_end);
  }

/**
     Check if there're enough points remaining as requested

Need to perform the calculation in logical units, since multiplication
     can overflow the size data type.

@arg data              pointer to the beginning of the points array
     @arg expected_points   number of points expected
     @arg extra_point_space extra space for each point element in the array
     @return               true if there are not enough points
  */
  inline bool not_enough_points(const char *data, uint32 expected_points,
                                uint32 extra_point_space = 0) const
  {
    return (m_data_end < data ||
            (expected_points > ((m_data_end - data) /
                                (POINT_DATA_SIZE + extra_point_space))));
  }
protected:
  const char *m_data;
  const char *m_data_end;
};

/***************************** Point *******************************/
 
class Gis_point: public Geometry
{
public:
  Gis_point() = default;                              /* Remove gcc warning */
  virtual ~Gis_point() = default;                     /* Remove gcc warning */
  uint32 get_data_size() const override;
  bool init_from_wkt(Gis_read_stream *trs, String *wkb) override;
  uint init_from_wkb(const char *wkb, uint len, wkbByteOrder bo, String *res) override;
  bool init_from_json(json_engine_t *je, bool er_on_3D, String *wkb) override;
  bool get_data_as_wkt(String *txt, const char **end) const override;
  bool get_data_as_json(String *txt, uint max_dec_digits,
                        const char **end) const override;
  bool get_mbr(MBR *mbr, const char **end) const override;
  
  int get_xy(double *x, double *y) const
  {
    const char *data= m_data;
    if (no_data(data, SIZEOF_STORED_DOUBLE * 2))
      return 1;
    float8get(*x, data);
    float8get(*y, data + SIZEOF_STORED_DOUBLE);
    return 0;
  }

int get_xy_radian(double *x, double *y) const
  {
    if (!get_xy(x, y))
    {
      *x= (*x)*M_PI/180;
      *y= (*y)*M_PI/180;
      return 0;
    }
    return 1;
  }

int get_x(double *x) const override
  {
    if (no_data(m_data, SIZEOF_STORED_DOUBLE))
      return 1;
    float8get(*x, m_data);
    return 0;
  }

int get_y(double *y) const override
  {
    const char *data= m_data;
    if (no_data(data, SIZEOF_STORED_DOUBLE * 2)) return 1;
    float8get(*y, data + SIZEOF_STORED_DOUBLE);
    return 0;
  }

int geom_length(double *len, const char **end) const override;
  int area(double *ar, const char **end) const override;
  bool dimension(uint32 *dim, const char **end) const override
  {
    *dim= 0;
    *end= 0;					/* No default end */
    return 0;
  }
  int store_shapes(Gcalc_shape_transporter *trn) const override;
  const Class_info *get_class_info() const override;
  double calculate_haversine(const Geometry *g, const double sphere_radius,
                             int *error);
  int spherical_distance_multipoints(Geometry *g, const double r, double *result,
                                     int *error);
};

/***************************** LineString *******************************/

class Gis_line_string: public Geometry
{
public:
  Gis_line_string() = default;                        /* Remove gcc warning */
  virtual ~Gis_line_string() = default;               /* Remove gcc warning */
  uint32 get_data_size() const override;
  bool init_from_wkt(Gis_read_stream *trs, String *wkb) override;
  uint init_from_wkb(const char *wkb, uint len, wkbByteOrder bo, String *res) override;
  bool init_from_json(json_engine_t *je, bool er_on_3D, String *wkb) override;
  bool get_data_as_wkt(String *txt, const char **end) const override;
  bool get_data_as_json(String *txt, uint max_dec_digits,
                        const char **end) const override;
  bool get_mbr(MBR *mbr, const char **end) const override;
  int geom_length(double *len, const char **end) const override;
  int area(double *ar, const char **end) const override;
  int is_closed(int *closed) const override;
  int num_points(uint32 *n_points) const override;
  int start_point(String *point) const override;
  int end_point(String *point) const override;
  int point_n(uint32 n, String *result) const override;
  bool dimension(uint32 *dim, const char **end) const override
  {
    *dim= 1;
    *end= 0;					/* No default end */
    return 0;
  }
  int store_shapes(Gcalc_shape_transporter *trn) const override;
  const Class_info *get_class_info() const override;
};

/***************************** Polygon *******************************/

class Gis_polygon: public Geometry
{
public:
  Gis_polygon() = default;                            /* Remove gcc warning */
  virtual ~Gis_polygon() = default;                   /* Remove gcc warning */
  uint32 get_data_size() const override;
  bool init_from_wkt(Gis_read_stream *trs, String *wkb) override;
  uint init_from_wkb(const char *wkb, uint len, wkbByteOrder bo, String *res) override;
  uint init_from_opresult(String *bin, const char *opres, uint res_len) override;
  bool init_from_json(json_engine_t *je, bool er_on_3D, String *wkb) override;
  bool get_data_as_wkt(String *txt, const char **end) const override;
  bool get_data_as_json(String *txt, uint max_dec_digits,
                        const char **end) const override;
  bool get_mbr(MBR *mbr, const char **end) const override;
  int area(double *ar, const char **end) const override;
  int exterior_ring(String *result) const override;
  int num_interior_ring(uint32 *n_int_rings) const override;
  int interior_ring_n(uint32 num, String *result) const override;
  int centroid_xy(double *x, double *y) const;
  int centroid(String *result) const override;
  bool dimension(uint32 *dim, const char **end) const override
  {
    *dim= 2;
    *end= 0;					/* No default end */
    return 0;
  }
  int store_shapes(Gcalc_shape_transporter *trn) const override;
  const Class_info *get_class_info() const override;
};

/***************************** MultiPoint *******************************/

class Gis_multi_point: public Geometry
{
  // Maximum number of points in MultiPoint that can fit into String
  static const uint32 max_n_points=
    (uint32) (UINT_MAX32 - WKB_HEADER_SIZE - 4 /* n_points */) /
    (WKB_HEADER_SIZE + POINT_DATA_SIZE);
public:
  Gis_multi_point() = default;                        /* Remove gcc warning */
  virtual ~Gis_multi_point() = default;               /* Remove gcc warning */
  uint32 get_data_size() const override;
  bool init_from_wkt(Gis_read_stream *trs, String *wkb) override;
  uint init_from_wkb(const char *wkb, uint len, wkbByteOrder bo, String *res) override;
  uint init_from_opresult(String *bin, const char *opres, uint res_len) override;
  bool init_from_json(json_engine_t *je, bool er_on_3D, String *wkb) override;
  bool get_data_as_wkt(String *txt, const char **end) const override;
  bool get_data_as_json(String *txt, uint max_dec_digits,
                        const char **end) const override;
  bool get_mbr(MBR *mbr, const char **end) const override;
  int num_geometries(uint32 *num) const override;
  int geometry_n(uint32 num, String *result) const override;
  bool dimension(uint32 *dim, const char **end) const override
  {
    *dim= 0;
    *end= 0;					/* No default end */
    return 0;
  }
  int store_shapes(Gcalc_shape_transporter *trn) const override;
  const Class_info *get_class_info() const override;
  int spherical_distance_multipoints(Geometry *g, const double r, double *res,
                                     int *error);
};

/***************************** MultiLineString *******************************/

class Gis_multi_line_string: public Geometry
{
public:
  Gis_multi_line_string() = default;                  /* Remove gcc warning */
  virtual ~Gis_multi_line_string() = default;         /* Remove gcc warning */
  uint32 get_data_size() const override;
  bool init_from_wkt(Gis_read_stream *trs, String *wkb) override;
  uint init_from_wkb(const char *wkb, uint len, wkbByteOrder bo, String *res) override;
  uint init_from_opresult(String *bin, const char *opres, uint res_len) override;
  bool init_from_json(json_engine_t *je, bool er_on_3D, String *wkb) override;
  bool get_data_as_wkt(String *txt, const char **end) const override;
  bool get_data_as_json(String *txt, uint max_dec_digits,
                        const char **end) const override;
  bool get_mbr(MBR *mbr, const char **end) const override;
  int num_geometries(uint32 *num) const override;
  int geometry_n(uint32 num, String *result) const override;
  int geom_length(double *len, const char **end) const override;
  int is_closed(int *closed) const override;
  bool dimension(uint32 *dim, const char **end) const override
  {
    *dim= 1;
    *end= 0;					/* No default end */
    return 0;
  }
  int store_shapes(Gcalc_shape_transporter *trn) const override;
  const Class_info *get_class_info() const override;
};

/***************************** MultiPolygon *******************************/

class Gis_multi_polygon: public Geometry
{
public:
  Gis_multi_polygon() = default;                      /* Remove gcc warning */
  virtual ~Gis_multi_polygon() = default;             /* Remove gcc warning */
  uint32 get_data_size() const override;
  bool init_from_wkt(Gis_read_stream *trs, String *wkb) override;
  uint init_from_wkb(const char *wkb, uint len, wkbByteOrder bo, String *res) override;
  bool init_from_json(json_engine_t *je, bool er_on_3D, String *wkb) override;
  bool get_data_as_wkt(String *txt, const char **end) const override;
  bool get_data_as_json(String *txt, uint max_dec_digits,
                        const char **end) const override;
  bool get_mbr(MBR *mbr, const char **end) const override;
  int num_geometries(uint32 *num) const override;
  int geometry_n(uint32 num, String *result) const override;
  int area(double *ar, const char **end) const override;
  int centroid(String *result) const override;
  bool dimension(uint32 *dim, const char **end) const override
  {
    *dim= 2;
    *end= 0;					/* No default end */
    return 0;
  }
  int store_shapes(Gcalc_shape_transporter *trn) const override;
  const Class_info *get_class_info() const override;
  uint init_from_opresult(String *bin, const char *opres, uint res_len) override;
};

/*********************** GeometryCollection *******************************/

class Gis_geometry_collection: public Geometry
{
public:
  Gis_geometry_collection() = default;                /* Remove gcc warning */
  virtual ~Gis_geometry_collection() = default;       /* Remove gcc warning */
  uint32 get_data_size() const override;
  bool init_from_wkt(Gis_read_stream *trs, String *wkb) override;
  uint init_from_wkb(const char *wkb, uint len, wkbByteOrder bo, String *res) override;
  uint init_from_opresult(String *bin, const char *opres, uint res_len) override;
  bool init_from_json(json_engine_t *je, bool er_on_3D, String *wkb) override;
  bool get_data_as_wkt(String *txt, const char **end) const override;
  bool get_data_as_json(String *txt, uint max_dec_digits,
                        const char **end) const override;
  bool get_mbr(MBR *mbr, const char **end) const override;
  int area(double *ar, const char **end) const override;
  int geom_length(double *len, const char **end) const override;
  int num_geometries(uint32 *num) const override;
  int geometry_n(uint32 num, String *result) const override;
  bool dimension(uint32 *dim, const char **end) const override;
  int store_shapes(Gcalc_shape_transporter *trn) const override;
  const Class_info *get_class_info() const override;
};

struct Geometry_buffer : public
  my_aligned_storage<sizeof(Gis_point), MY_ALIGNOF(Gis_point)> {};

#endif /*HAVE_SPATIAL*/
#endif

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