Please refer to my previous posts. Modify the SQL select command. Use the CONCAT function instead of the + operator to create the wkt.
It should be something like this: CONCAT('LINESTRING(', x1, ' ', y1, ',', x2, ' ', y2, ')') You may have to change the order of the points. On Fri, Mar 2, 2012 at 9:24 PM, Murat Beyhan <bey...@deprem.gov.tr> wrote: > Chaitanya, > > I store data in table not view as I told you before becasue I could not > declare column as string, then I create a new table and select > fault(line) column as linestring. in mysql WKT support these format > > > * A LineString with four points: > > LINESTRING(0 0, 10 10, 20 25, 50 60) > > Note that point coordinate pairs are separated by commas. > > * A Polygon with one exterior ring and one interior ring: > > POLYGON((0 0,10 0,10 10,0 10,0 0),(5 5,7 5,7 7,5 7, 5 5)) > * A MultiPoint with three Point values: > > MULTIPOINT(0 0, 20 20, 60 60) > * A MultiLineString with two LineString values: > > MULTILINESTRING((10 10, 20 20), (15 15, 30 15)) > * A MultiPolygon with two Polygon values: > > MULTIPOLYGON(((0 0,10 0,10 10,0 10,0 0)),((5 5,7 5,7 7,5 7, 5 5))) > * A GeometryCollection consisting of two Point values and one > LineString: > > GEOMETRYCOLLECTION(POINT(10 10), POINT(30 30), LINESTRING(15 15, 20 > 20)) > > > How to modify wkt geometry in string format > in map file it is already defined as > <GeometryType>wkbLineString</GeometryType> > like this. > > I really sorry for giving trouble to you. Thanks > > murat > > On Fri, 2012-03-02 at 21:19 +0530, Chaitanya kumar CH wrote: > > Modify the table to store the line as a wkt geometry in string format. > > > > On Fri, Mar 2, 2012 at 9:12 PM, Murat Beyhan <bey...@deprem.gov.tr> > > wrote: > > Chaitanya, > > > > I mean What should I do, > > Still could not draw a simple line on the map, > > Please how can I overcome this issue. How can I change VRT > > file. > > in order to read data from such table storing data as > > linestring > > > > regards > > > > murat > > On Fri, 2012-03-02 at 21:08 +0530, Chaitanya kumar CH wrote: > > > I was talking about the geometry format of the line. You > > have to > > > decide for yourselves about the efficiency. > > > > > > On Fri, Mar 2, 2012 at 8:57 PM, Murat Beyhan > > <bey...@deprem.gov.tr> > > > wrote: > > > Chaitanya, > > > > > > What do you prefer and which way more fast to draw > > line and > > > point > > > because I also draw point about 160000 and I use > > wkbpoint. > > > > > > Any way how to change and What I will change in the > > vrt. > > > > > > could you tell something about it > > > thanks > > > > > > > > > On Fri, 2012-03-02 at 20:23 +0530, Chaitanya kumar > > CH wrote: > > > > Murat, > > > > > > > > You specified the encoding for GeometryField in > > the VRT as > > > WKT. OGR > > > > expects a WKT if you do that. Either change the > > data or the > > > VRT. > > > > > > > > On Fri, Mar 2, 2012 at 6:42 PM, Murat Beyhan > > > <bey...@deprem.gov.tr> > > > > wrote: > > > > I have to say this is not view > > > > this is a table created. > > > > > > > > Because I could not declare type of geom > > field as a > > > string > > > > than I create > > > > geometry field column in spatial mysql > > database.. > > > > > > > > > > > > On Fri, 2012-03-02 at 18:39 +0530, > > Chaitanya kumar > > > CH wrote: > > > > > Murat, > > > > > > > > > > Can you show a sample output of your > > view? > > > > > SELECT * FROM geom; > > > > > > > > > > On Fri, Mar 2, 2012 at 6:12 PM, Murat > > Beyhan > > > > <bey...@deprem.gov.tr> > > > > > wrote: > > > > > > > > > > > > > > > > > > > > > > > > > Dear Chaitanya, > > > > > > > > > > I see what you explain first I > > convert lat > > > lon data > > > > to string > > > > > then I > > > > > concatenate them to string > > again. But I > > > would like > > > > to ask > > > > > I have already add data to mysql > > table as > > > follows is > > > > this also > > > > > correct > > > > > because when I browse table it > > seems it > > > store data > > > > in geometry > > > > > field > > > > > but mapserver gives error > > > > > Unable to identify source field > > 'fault' > > > for > > > > geometry. > > > > > any way > > > > > I will try to convert data first > > then I > > > can return > > > > back you. > > > > > Regards... > > > > > > > > > > ps. > > > > > > > > > > ogrinfo > > > > > > > > > > > > > > > MYSQL:dynamic,user=root,password=mysql_123,host=localhost,port=3306,tables=geom > > > > > INFO: Open of > > > > > > > > > > > > > > > `MYSQL:dynamic,user=root,password=mysql_123,host=localhost,port=3306,tables=geom' > > > > > using driver `MySQL' > > successful. > > > > > 1: geom (None) > > > > > > > > > > > > > > > > > > > > > > > > > it say none in geom > > > > > may be first I have to do what > > you say > > > > > thanks > > > > > Murat > > > > > > > > > > > > > > > > > > > > -- > > > > > 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 > > > > > > > > -- > > > > 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 > > > > > > -- > > > This message has been scanned for viruses and > > > dangerous content by MailScanner, and is > > > believed to be clean. > > > > -- > > > > Murat BEYHAN > > Geophysical Engineer, M.Sc. > > Prime Ministry > > Disaster and Emergency Management Presidency > > Earthquake Department > > Address: Eskisehir 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 > > > > -- > > 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
_______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev