![]() Sql::Connection * conectaDB(string dbSvr, string dbUsr, string dbPwd, string dbNombre) Sale.open(arproc.c_str(), ios::out | ios::app) Vector lascoords = split(polcoords, ",") Polcoords = polcoords.substr(9, polcoords.size() - 11) Qry = "SELECT name, astext(geoarea) from " + "table name" + " where id = '" + argv + "' " Sql::Connection * conectaDB(string dbSvr, string dbUsr, string dbPwd, string dbNombre) ĭbCon = conectaDB("dbserver", "dbuser"), "dbpasswd", "dbname") You can call the new kml to googlemaps and it shows pretty nice. ![]() Rearrange the information and print it out to the file.I'd wrote a little C++ program to do MySQL WKT polygons to KML polygons. Where AsStringOfCoords() would be my custom function. So, I am really looking for a function to convert WKT to a string of its constituent point coordinates, kinda like so SELECT AsStringOfCoords(WKT_Column) FROM table WHERE condition I am thinking I could use this to either write a stored procedure that will query the WKT column and spit out a string of JSON text that could be readily converted to Google Maps polys, or even preprocess all the WKT polys and store them as text like it is already done, but this time with correct values. the first issue, I have to re-implement this, and am looking for a converter that will convert a WKT poly into a string of coordinates. This actually works rather well, but not well enough.įor one, the conversion was occasionally faulty, and for two, I am looking for ways to make this faster. Since Google Maps polygon overlay requires an array of points, the previous user converted the WKT values to coordinate pairs and stored them in another column. The polys are queried and rendered on Google Maps. Your charges allow us to cover costs associated with the servers operation and to improve our service.I have a column of WKT POLYGON values in MySQL (I inherited the db). If you exceeded the limit, you may register a prepaid plan - otherwise you will be charged by credit card during the conversion process (one-off payment). To avoid considerable servers loads we had to set conversions limits for each user - please see Free plan. If the input format is directory-based, it is necessary to pack whole directory - not only the content. ![]() Then it is possible to transform your data to any other coordinate reference system.įiles can be uploaded using multiple selections or packed into any supported format (ZIP, RAR, 7Z, TAR, GZIP). If the coordinate system of your input data is not present or not recognized correctly, it is possible to assign the correct one. Converter also supports more than 90 others vector and rasters GIS/CAD formats and more than 3 000 coordinate reference systems. Our online converter of Well-known Text format to Keyhole Markup Language format (WKT to KML) is fast and easy to use tool for both individual and batch conversions. ![]()
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