Can not convert geometry polygon to geography


hi,

i kept getting error doing below , not find wrong. can take look?

declare @geog geography;
declare @geom geometry;


set @geom = geometry::stpolyfromtext('polygon((101.672729 3.106615,101.674123 3.108650,101.674067 3.110243,101.672484 3.114602,101.672489 3.114701,101.676913 3.115032,101.677854 3.115422,101.679595 3.114258,101.682601 3.112739,101.686587 3.112115,101.688313 3.111350,101.694240 3.104536,101.695499 3.102511,101.696886 3.101461,101.695710 3.098697,101.695138 3.096237,101.695293 3.092493,101.698320 3.084698,101.702435 3.080928,101.703026 3.078771,101.702230 3.074790,101.703138 3.063713,101.704564 3.057330,101.705382 3.050862,101.702204 3.050689,101.698317 3.049582,101.690278 3.048998,101.679846 3.048987,101.673437 3.048943,101.673313 3.048761,101.673334 3.047441,101.673511 3.043867,101.672355 3.042247,101.672240 3.038895,101.671049 3.037673,101.664741 3.036156,101.664570 3.035070,101.649260 3.034952,101.636260 3.034944,101.635901 3.037785,101.632650 3.039883,101.631166 3.039528,101.630202 3.040778,101.627679 3.042344,101.628887 3.044759,101.632300 3.045590,101.633048 3.046620,101.632695 3.049429,101.625376 3.050387,101.620154 3.054541,101.617430 3.056373,101.615318 3.058156,101.618245 3.059763,101.619433 3.068790,101.620459 3.071334,101.622002 3.073351,101.621459 3.077336,101.622743 3.077964,101.624341 3.080588,101.626051 3.084464,101.629632 3.084332,101.631734 3.084223,101.646500 3.081966,101.648402 3.081910,101.650478 3.081828,101.651951 3.081659,101.656113 3.081614,101.660317 3.082865,101.664570 3.084622,101.666941 3.086903,101.669592 3.088133,101.670016 3.088801,101.670010 3.089700,101.669793 3.092784,101.669361 3.096330,101.670607 3.098411,101.671364 3.101454,101.672350 3.105324,101.672729 3.106615))'
    , 0);

select @geom, @geom.isvaliddetailed()  -- valid.

set @geog = geography::stpolyfromtext(@geom.stastext(), 4326)
-- go below error.
-- cannot find point in other hemisphere. , valid ring orientation should too.


msg 6522, level 16, state 1, line 17
.net framework error occurred during execution of user-defined routine or aggregate "geography":
microsoft.sqlserver.types.glargumentexception: 24205: specified input not represent valid geography instance because exceeds single hemisphere. each geography instance must fit inside single hemisphere. common reason error polygon has wrong ring orientation. create larger hemisphere geography instance, upgrade version of sql server , change database compatibility level @ least 110.
microsoft.sqlserver.types.glargumentexception:
   @ microsoft.sqlserver.types.glnativemethods.geodeticisvalid(geodata& g, double eccentricity, boolean forcekatmai)
   @ microsoft.sqlserver.types.sqlgeography.isvalidexpensive(boolean forcekatmai)
   @ microsoft.sqlserver.types.sqlgeography..ctor(geodata g, int32 srid)
   @ microsoft.sqlserver.types.sqlgeography.geographyfromtext(opengistype type, sqlchars taggedtext, int32 srid)


hi olaf,

i figured out. ring orientation. forgot 1 step.

set @geom = @geom.stunion(@geom.ststartpoint());

usually makevalid() , stunion() together. time, checked stisvalid() (and isvaliddetail()) , thought "well, it's good."

btw, using sql 2014 (upgraded sql 2008). mentioned, sql 2014 take wrong polygon produced before?

thanks again,

john



SQL Server  >  SQL Server Spatial



Comments

Post a Comment

Popular posts from this blog

Reindexing

hi     using sql server 2005 ee sp4. our database size 150 gb. weekly once schedule reindex job. ran 4 5 hours maximum. but recent days getting more 13 hours. the possibilities there? ragu thangavel how perform reindex? maint plan? or check fragmentation first , reorganize fragmented? if later, quite more data nowadays fragmented before. if not, consider doing "smart" defrag (ola.hallengren.com). tibor karaszi, sql server mvp | web | blog SQL Server  >  SQL Server Database Engine
Read more

Users List

hello everyone, i"m builing tool tfs , want user list form tfs "assigned to" field. if 1 can post code review i"ll gled.   thanks hello, to imports users tfs, can try this: using microsoft.teamfoundation.server; using microsoft.teamfoundation.client; using microsoft.teamfoundation.workitemtracking.client; icredentialsprovider provider = new uicredentialsprovider (); teamfoundationserver tfs = teamfoundationserverfactory .getserver(“your_server_name”, provider); tfs.authenticate(); igroupsecurityservice gss = ( igroupsecurityservice )tfs.getservice( typeof ( igroupsecurityservice )); identity idsid = gss.readidentity( searchfactor .accountname, "team foundation valid users" , querymembership .expanded); identity [] idusername = gss.readidentities( searchfactor .sid, idsid.members, querymembership .none); foreach ( identity id in idusername) {       if (id != null && id.type == identitytype .windowsuser) ...
Read more

List of charts

Image
i'm trying build report show activity for reservations placed and satisfied month branch. the report has parameter the item category and dataset has fields month category branch reservations placed reservations satisfied on front sheet i've created system wide figures 2 columns per month and a matrix broken down category (e.g. child fiction, child non fiction, adult fiction, adult non fiction) has row , column totals. i want have page each branch in system. what's best way of approaching this?  add parent group based on branch field in row groups  and add page breaks repeat matrix report every branch. please mark answer if post solved problem. milan das SQL Server  >  SQL Server Reporting Services, Power View ...
Read more