AW: [mapserver-users] Oracle Spatial + MS 5.2.0: No drawing of certain objects

Fri Sep 19 03:20:14 PDT 2008

Hallo Paul,

1.) Yes, there is no difference in behavior between the old and new mapserver versions.

2.) Yes and No. In detail:

2a) If there is at most ONE straight line in the polygon, mapserver renders this polygon correct, even if there is a curved segement (arc) in the polygon. For example this is a church, which contains three arcs in the polygon (triple 11,2,2 and 31,2,2 and 51,2,2). This polygon is rendered correct.

INSERT INTO AX_GEBAEUDE (FID,GEOM) VALUES (14080503,mdsys.sdo_geometry(2003,82032,null,mdsys.sdo_elem_info_array(1,1005,7,1,2,1,11,2,2,15,2,1,31,2,2,35,2,1,51,2,2,55,2,1),mdsys.sdo_ordinate_array(4506867.81,5430890.76,4506872.05,5430889.72,4506881.01,5430887.51,4506881.58,5430889.82,4506883.14,5430896.16,4506937.22,5430883.9,4506941.09222415,5430884.75129585,4506943.86,5430887.59,4506948.31,5430886.72,4506947.53,5430882.98,4506950.45,5430882.37,4506950.02,5430880.3,4506955.17,5430879.23,4506955.58,5430881.2,4506958.35,5430880.62,4506959.21,5430884.73,4506961.57385865,5430886.53782314,4506960.13,5430889.14,4506960.94,5430893,4506957.92,5430893.63,4506958.4,5430896.12,4506953.2,5430897.12,4506952.74,5430894.72,4506950.1,5430895.27,4506949.23,5430891.12,4506944.73,5430892,4506942.9045371,5430896.27675424,4506939.38,5430899.31,4506893.36,5430909.55,4506886.79,5430911.01,4506888.96,5430919.81,4506882.98,5430921.28,4506874.83,5430923.28,4506874.09,5430920.3,4506872.55,5430914.03,4506866.92,5430915.42,4506864.74,5430915.95,4506861.35,5430902.17,4506870.09,5430900.02,4506867.81,5430890.76)));

2b) Mapserver does not render polygons, which exists ONLY of a connected sequence of circular arcs that closes on itself. (Examples below).

Greetings
Herbert

>-----Ursprüngliche Nachricht-----
>Von: Paul Ramsey [mailto:pramsey at cleverelephant.ca]
>Gesendet: Donnerstag, 18. September 2008 16:35
>An: Schönhammer, Herbert
>Betreff: Re: [mapserver-users] Oracle Spatial + MS 5.2.0: No
>drawing of certain objects
>
>
>So, to confirm, there is now no difference in behavior between your
>old and new mapserver installations?
>
>However, the old and new installations share an inability to render
>polygons that include curved boundaries?
>
>P.
>
>On Thu, Sep 18, 2008 at 3:14 AM, Schönhammer, Herbert
><Schoenhammer.Herbert at regensburg.de> wrote:
>> Hallo Paul,
>>
>> (I needed some time because new hardware, ...)
>>
>> Okay: First of all:
>>
>> The reported NEW DIFFICULTIES are not reproducable any more.
>I really don't know what happened. But LINESTRINGS made up of
>a connected sequence of circular arcs ARE DRAWN by mapserver.
>>
>> The old problem still exists.
>> =============================
>> POLYGONS made up of a connected sequence of circular arcs
>ARE NOT DRAWN by mapserver. No error message.
>>
>> I have made a config error in my mapfile. So I could get an
>error message from mapserver. In this error message the
>SQL-statement sent to the oracle database is:
>>
>> SELECT fid, geom FROM AX_GEBAEUDE WHERE SDO_FILTER( geom,
>MDSYS.SDO_GEOMETRY(2003, 82032,
>NULL,MDSYS.SDO_ELEM_INFO_ARRAY(1,1003,3),MDSYS.SDO_ORDINATE_ARR
>AY(4505602.25,5430841.31,4505622.97,5430856.39)
>),'querytype=window') = 'TRUE'
>>
>> When i submit this SQL direct to the databse I get 4 geometries back.
>> Two POLYGONS made up of straight line segements.
>> Two POLYGONS made up of a connected sequence of circular arcs.
>>
>> The polygons with straight line segments are drawn, the
>polygons made up of a connected sequence of circular arcs are
>not drawn.
>>
>> I have exported these objects from my database:
>>
>> The drawn polygons are:
>> INSERT INTO AX_GEBAEUDE (FID,GEOM) VALUES
>(14079074,mdsys.sdo_geometry(2003,82032,null,mdsys.sdo_elem_inf
>o_array(1,1003,1),mdsys.sdo_ordinate_array(4505658.59,5430772.1
>7,4505643.27,5430803.04,4505634.39,5430798.05,4505625.41,543081
>4,4505619.34,5430810.5898,4505607.9,5430830.95,4505607.4,543083
>0.7,4505600.29,5430845.02,4505511.2,5430801.08,4505534.42,54307
>54.01,4505552.34,5430762.86,4505569.51,5430728.08,4505658.59,54
>30772.17)));
>> INSERT INTO AX_GEBAEUDE (FID,GEOM) VALUES
>(14079078,mdsys.sdo_geometry(2003,82032,null,mdsys.sdo_elem_inf
>o_array(1,1003,1),mdsys.sdo_ordinate_array(4505643.27,5430803.0
>4,4505643.85,5430803.37,4505644.39,5430803.67,4505644.34,543080
>3.76,4505635.46,5430819.49,4505633.64,5430822.73,4505619.68,543
>0847.46,4505609.69,5430841.9199,4505613.95,5430834.36,4505625.4
>1,5430814,4505634.39,5430798.05,4505643.27,5430803.04)));
>>
>> The polygons which are not drawn are:
>> INSERT INTO AX_GEBAEUDE (FID,GEOM) VALUES
>(14079126,mdsys.sdo_geometry(2003,82032,null,mdsys.sdo_elem_inf
>o_array(1,1003,2),mdsys.sdo_ordinate_array(4505611.03,5430848.5
>5,4505611.03,5430845.19,4505614.39,5430845.19,4505614.39,543084
>8.55,4505611.03,5430848.55)));
>> INSERT INTO AX_GEBAEUDE (FID,GEOM) VALUES
>(14079128,mdsys.sdo_geometry(2003,82032,null,mdsys.sdo_elem_inf
>o_array(1,1003,2),mdsys.sdo_ordinate_array(4505615.64,5430849.9
>,4505615.64,5430847.3,4505618.24,5430847.3,4505618.24,5430849.9
>,4505615.64,5430849.9)));
>>
>>
>> All polygons are GTYPE=2003 in SRID=82032. All POLYGONS are
>SDO_ETYPE=1003.
>> The POLYGONS with SDO_INTERPRETATION = 1 are drawn.
>> The POLYGONS with SDO_INTERPRETATION = 2 are not drawn.
>>
>>
>> greetings
>> Herbert
>>
>>>-----Ursprüngliche Nachricht-----
>>>Von: Paul Ramsey [mailto:pramsey at cleverelephant.ca]
>>>Gesendet: Donnerstag, 11. September 2008 19:07
>>>An: Schönhammer, Herbert
>>>Cc: Mapserver-users (mapserver-users at lists.osgeo.org)
>>>Betreff: Re: [mapserver-users] Oracle Spatial + MS 5.2.0: No
>>>drawing of certain objects
>>>
>>>
>>>Could you do a bit more legwork and see if the problem appears at the
>>>transition to 5.0 or the transition to 5.2? From there we
>can probably
>>>find the code change that caused it.
>>>
>>>P.
>>>
>>>On Wed, Sep 10, 2008 at 7:03 AM, Schönhammer, Herbert
>>><Schoenhammer.Herbert at regensburg.de> wrote:
>>>> Hi list,
>>>>
>>>> ( I had a similar discussion using Mapserver 4.10.x and
>>>Oracle Spatial 9i in
>>>> May 2007. But the problems changed using Mapserver 5.2.0 .).
>>>>
>>>>
>>>> The new environmet:
>>>> ===============
>>>> Server SLES10
>>>> Mapserver 5.2.0
>>>> Oracle OCI - Interface used with Oracle 11-Client-Software
>>>>
>>>> DB-Server Windows 2xxx
>>>> Oracle Spatial 10g
>>>>
>>>>
>>>> The new problem :
>>>> ==============
>>>> Line strings made up of a connected sequence of circular
>>>arcs ARE NOT DRAWN.
>>>> No error message is generated by mapserver, but the objects
>>>are not shown in
>>>> the map.
>>>>
>>>> Example:
>>>> INSERT INTO AX_BES_GEBLINIE (FID,GEOM) VALUES
>>>>
>>>(14196363,mdsys.sdo_geometry(2002,82032,null,mdsys.sdo_elem_inf
>>>o_array(1,2,2),mdsys.sdo_ordinate_array(4512474.1948,5426555.09
>>>79,4512473.3318,5426554.2349,4512474.1948,5426553.3719,4512475.
>>>0578,5426554.2349,4512474.1948,5426555.0979)));
>>>>
>>>> (Background:
>>>> In my mailing from May 2007 I reported that these Objects are drawn
>>>> correctly by mapserver. This statement is indeed
>>>reproducable correct using
>>>> mapserver 4.10.x. This is independent from the used oracle
>>>version ( 9i or
>>>> 10g ).
>>>> Now, using mapserver 5.2.0 these objects are not drawn
>>>anymore. No error
>>>> message is produced. This is also independent from the used
>>>oracle version (
>>>> 9i or 10g ). )
>>>>
>>>> The old problem:
>>>> ============
>>>> Polygons  made up of a connected sequence of circular arcs
>>>ARE NOT DRAWN. No
>>>> error message is generated by mapserver, but the objects are
>>>not shown in
>>>> the map.
>>>>
>>>> (This problem was already reported in May 2007. The
>>>behaviour did not change
>>>> from mapserver 4.10.x to 5.2.0)
>>>>
>>>> Example:
>>>> INSERT INTO AX_GEBAEUDE (FID,GEOM) VALUES
>>>>
>>>(14079065,mdsys.sdo_geometry(2003,82032,null,mdsys.sdo_elem_inf
>>>o_array(1,1003,2),mdsys.sdo_ordinate_array(4505553.2585,5430757
>>>.2937,4505551.1659,5430755.2011,4505553.2585,5430753.1085,45055
>>>55.3511,5430755.2011,4505553.2585,5430757.2937)));
>>>>
>>>>
>>>> Oracle Documentation:
>>>> =================
>>>> Reading the Oracle Docs, I think all the objects are correct
>>>defined. The
>>>> geometries are validating by oracle 9i and oracle 10g (Using
>>>the st_valid -
>>>> method, e.g. SELECT a.GEOM.ST_IsValid()
>>>> FROM ax_bes_geblinie a WHERE a.fid = 14196363;).
>>>>
>>>>
>>>>
>>>> Does anybody know a solution how to draw these objects with
>>>mapserver ?
>>>>
>>>> greetings
>>>> Herbert
>>>>
>>>> _______________________________________________
>>>> mapserver-users mailing list
>>>> mapserver-users at lists.osgeo.org
>>>> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>>>>
>>>>
>>>
>>
>