Murat,
I see that your view, lineview, doesn't give the expected geometry type
with ogrinfo. It is showing the datatype as Real. Check if the datatype of
geom is actually string/text.
On Tue, Feb 28, 2012 at 12:49 PM, Murat Beyhan <bey...@deprem.gov.tr> wrote:
> Chaitanya,
>
>
> Map file which is try to draw line as follows
> are there any problem on the code
>
> LAYER
> NAME sfault1
> CONNECTIONTYPE OGR
> CONNECTION '<OGRVRTDataSource>
> <OGRVRTLayer name="lineview">
>
> <SrcDataSource>MYSQL:dynamic,user=root,password=mysqlpasswd,host=localhost,port=3306,tables=lineview</SrcDataSource>
> <SrcLayer>lineview</SrcLayer>
> <GeometryType>wkbLineString</GeometryType>
> <GeometryField encoding="WKT" field="geom"/>
> <LayerSRS>WGS84</LayerSRS>
> <FID>eq_id</FID>
> </OGRVRTLayer>
> </OGRVRTDataSource>'
> DATA sfault1
> STATUS on
> TYPE line
> CLASS
> NAME "Source Fault"
> SYMBOL "cline"
> SIZE 3
> COLOR 0 0 255
> END
> END
>
> ogrinfo
> MYSQL:dynamic,user=root,password=mysqlpasswd,host=localhost,port=3306
> sfault -summary
> INFO: Open of
> `MYSQL:dynamic,user=root,password=mysqlpasswd,host=localhost,port=3306'
> using driver `MySQL' successful.
>
> Layer name: sfault
> Geometry: None
> Feature Count: 1
> Layer SRS WKT:
> (unknown)
> eq_id: String (14.0)
> lat1: Real (7.4)
> lon1: Real (7.4)
> lat2: Real (7.4)
> lon2: Real (7.4)
>
> **************linewiew created by following sql statement:*************
>
>
> create view lineview as select eq_id, "LINESTRING(" + lon1 + " " + lat1
> + "," + lon2 + " " + lat2 + ")" as geom from sfault
>
> then
>
> [murat@localhost ~]$ ogrinfo
> MYSQL:dynamic,user=root,password=mysqlpasswd,host=localhost,port=3306
> lineview -summary
> INFO: Open of
> `MYSQL:dynamic,user=root,password=mysqlpasswd,host=localhost,port=3306'
> using driver `MySQL' successful.
>
> Layer name: lineview
> Geometry: None
> Feature Count: 1
> Layer SRS WKT:
> (unknown)
> eq_id: String (14.0)
> geom: Real (0.0)
>
>
> as you see there is no problem to connect mysql and read information
> created mysql geometries from shape file also works here is an example
>
> [murat@localhost ~]$ ogrinfo
> MYSQL:testogr,user=root,password=mysqlpasswd,host=localhost,port=3306
> iller -summary
> INFO: Open of
> `MYSQL:testogr,user=root,password=mysqlpasswd,host=localhost,port=3306'
> using driver `MySQL'
> successful.
>
> Layer name: iller
> Geometry: Polygon
> Feature Count: 83
> Extent: (26.026489, 35.820221) - (44.869179, 42.094917)
> Layer SRS WKT:
> GEOGCS["GCS_WGS_1984",
> DATUM["WGS_1984",
> SPHEROID["WGS_1984",6378137,298.257223563]],
> PRIMEM["Greenwich",0],
> UNIT["Degree",0.0174532925199433]]
> FID Column = OGR_FID
> Geometry Column = SHAPE2
> area: Real (13.6)
> perimeter: Real (13.6)
> illerdd_: Real (0.0)
> illerdd_id: Real (0.0)
> il_kod: Real (2.0)
> iladi: String (20.0)
> [murat@localhost ~]$
>
>
>
> Now I would like to learn what is wrong with my procedures... please
> help
>
>
>
> Murat
>
>
> On Tue, 2012-02-28 at 09:03 +0530, Chaitanya kumar CH wrote:
> > Murat,
> >
> >
> > Since it is MySQL it doesn't matter much how you store it. If you are
> > going to edit the end points later, storing them as points is
> > preferable, otherwise store them as wkt linestring geometries.
> >
> >
> > For your mapfile, first check if the extents are correct. Then check
> > if the mapfile works with a shapefile created from the geometries in
> > MySQL.
> >
> > On Tuesday, February 28, 2012, Murat BEYHAN wrote:
> > Chaitanya,
> >
> > thanks for your repply,
> >
> > Actually I use ogr and mysql to draw point for example
> > epicenter of
> > earthquakes. But this is the first time to draw line which is
> > stored in
> > Mysql as a table. Actually there is no problem on drawing
> > shape file of the
> > line. But I would like to draw it using MySql and ogr
> > functionality. So I
> > have only start and end point of line and I store it on MySql
> > database then
> > I try to draw it considering id of the line by sql statement.
> > Just I would lie to learn how to code it on Mapserver map file
> > and how
> > should I store line on database as a start and stop point of
> > the line or as
> > a geometry . Please help...
> > thanks
> >
> >
> >
> >
> > On Mon, 27 Feb 2012 22:09:52 +0530, Chaitanya kumar CH wrote
> > > Murat,
> > >
> > > First check if your database is accessible using ogrinfo[1].
> > > Then create a vrt file with the content you specified in the
> > CONNECTION
> > > field of the mapfile. Check if ogrinfo gives expected
> > results with this
> > > file.
> > >
> > > You probably have gdal executables if you are running
> > mapserver.
> > >
> > > [1]: http://www.gdal.org/ogrinfo.html
> > >
> > > On Mon, Feb 27, 2012 at 12:48 PM, Murat Beyhan
> > > <bey...@deprem.gov.tr> wrote:
> > >
> > > > Dear all,
> > > > I have shared this mail on Mapserver list but could not
> > solve my
> > > > problem.
> > > > Still could not achieve to draw line using start and stop
> > point line
> > > > data stored in MySql database.
> > > >
> > > > I have tried Mr. Robert's solution but I have faced an
> > error message.
> > > >
> > > >
> > > > in map file
> > > > I changed Geometrytype from wkbline to wkblinestring.
> > > >
> > > > LAYER
> > > > NAME sfault1
> > > > CONNECTIONTYPE OGR
> > > > CONNECTION '<OGRVRTDataSource>
> > > > <OGRVRTLayer name="lineview">
> > > >
> > > >
> >
> <SrcDataSource>MYSQL:dynamic,user=root,password=mysqlpasswd,host=localhost,po
> > rt=3306,tables=lineview</SrcDataSource>
> > > > <SrcLayer>lineview</SrcLayer>
> > > > <GeometryType>wkbLineString</GeometryType>
> > > > <GeometryField encoding="WKT" field="geom"/>
> > > > <LayerSRS>WGS84</LayerSRS>
> > > > <FID>eq_id</FID>
> > > > </OGRVRTLayer>
> > > > </OGRVRTDataSource>'
> > > > DATA sfault1
> > > > STATUS on
> > > > TYPE line
> > > > CLASS
> > > > NAME "Source Fault"
> > > > SYMBOL "cline"
> > > > SIZE 3
> > > > COLOR 0 0 255
> > > > END
> > > > END
> > > >
> > > > in database
> > > > I have two table
> > > > one is sfault which store
> > > >
> > > > id lat1 lon1 lat2 lon2
> > > >
> > > > and another is lineview which is a view
> > > > of this table created by following
> > > >
> > > > create view lineview as select eq_id, "LINESTRING(" + lon1
> > + " " + lat1
> > > > + "," + lon2 + " " + lat2 + ")" as geom from sfault
> > > >
> > > >
> > > > there is an another issue,
> > > >
> > > > I have to draw line by considering id
> > > > so in the map When I select one id, line should be belong
> > to this id's
> > > > information
> > > > so I have to make a sql statement as follow instead of
> > draw all line
> > > > stored in database I have to draw just one line
> > considering id
> > > >
> > > > something like this:
> > > >
> > > > select eq_id, geom from lineview where id like '%id%'
> > > >
> > > >
> > > > please help about this subject....
> > > >
> > > >
> > > > Regards....
> > > >
> > > >
> > > >
> > > > Murat
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > --
> > > > This message has been scanned for viruses and
> > > > dangerous content by MailScanner, and is
> > > > believed to be clean.
> > > >
> > > > _______________________________________________
> > > > gdal-dev mailing list
> > > > gdal-dev@lists.osgeo.org
> > > > http://lists.osgeo.org/mailman/listinfo/gdal-dev
> > > >
> > >
> > > --
> > > Best regards,
> > > Chaitanya kumar CH.
> > >
> > > +91-9494447584
> > > 17.2416N 80.1426E
> > >
> > > --
> > > This message has been scanned for viruses and
> > > dangerous content by MailScanner, and is
> > > believed to be clean.
> >
> >
> > Murat Beyhan
> > Jeofizik Yük. Müh.
> > T.C.
> > BAŞBAKANLIK
> > Afet ve Acil Durum Yönetimi Başkanlığı
> > Deprem Dairesi Başkanlığı
> > Eskişehir Yolu 12. Km. Lodumlu/Ankara
> > Tel:+90 (312) 2872680-1550
> >
> >
> > --
> > This message has been scanned for viruses and
> > dangerous content by MailScanner, and is
> > believed to be clean.
> >
> >
> >
> > --
> > Best regards,
> > Chaitanya kumar CH.
> >
> > +91-9494447584
> > 17.2416N 80.1426E
> >
> > --
> > This message has been scanned for viruses and
> > dangerous content by MailScanner, and is
> > believed to be clean.
>
>
>
> Murat BEYHAN
>
> Jeofizik Y.Müh.
> T.C. Başbakanlık
> Afet ve Acil Durum Yönetimi Başkanlığı
> Deprem Dairesi Başkanlığı
> Eskişehir Yolu 12. Km.
> Lodumlu/ANKARA
> Tel: 312 2872680-1556
> email:bey...@deprem.gov.tr
>
>
>
>
> --
> This message has been scanned for viruses and
> dangerous content by MailScanner, and is
> believed to be clean.
>
>
--
Best regards,
Chaitanya kumar CH.
+91-9494447584
17.2416N 80.1426E
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