MySQL is an open-source, relational database management system. Place you question on MySQL Spatial Extensions here.

learn more… | top users | synonyms

3
votes
2answers
2k views

How did QGIS fix a shapefile's character encoding, and can I do this on the command line with ogr2ogr?

Solved: I'm not sure why, but it works fine if I specify --config SHAPE_ENCODING "ISO-8859-1" in my ogr2ogr command. For whatever reason, this allowed ogr2ogr to go from the original TigerLine ...
1
vote
1answer
437 views

Error during conversion of shapefile to MySQL using ogr2ogr

I have installed MS4W in Windows 7. I get an error when I try to convert a shapefile to MySQL database using GDAL/OGR ogr2ogr. This is the command I'm trying: C:\ms4w\tools\gdal-ogr>ogr2ogr -f ...
3
votes
1answer
793 views

Does MySQL only support bounding boxes calculations instead of the real polygon geometry?

Within our company we are deciding which DBMS we will use to store spatial data. IT wants MySQL with the Spatial extension because there is already knowledge about handling MySQL DB. We are doing ...
0
votes
1answer
3k views

Does MySQL has function which will return the points inside polygon?

I have MySQL database with polygons, and also the database with points (column longitude and column latitude), is it possible to return all points inside one polygon? Thanks!
1
vote
0answers
2k views

Google map did not update new geolocation when I moved the marker to new position [on hold]

This is my google map code. I'm trying to update new latitude and longitude when i moved the existing marker to new position. But I don't understand why the following google map code is not updating ...
0
votes
0answers
35 views

Backup in Mysql periodically

I have trouble scheduling a backup in mysql periodically, most of the tools do not recognize the geometric field, for example navicat which says Can not get geometry object from data you send to ...
0
votes
2answers
689 views

Spatial databases in location based search

I'm developing a location based application in which i was in the plan of dividing the globe into grids and when the client requests information, will create a table or similar data model which will ...
2
votes
2answers
864 views

MySQL with geoserver

I am storing all my features in mysql db and I am getting them with ajax and adding to the openlayers map. Now I have to many features and it's taking a lot of time to get all of them and adding them, ...
1
vote
0answers
247 views

GeoTools: SimpleFeatureCollection to KML error CoordinateReferenceSystem

I want to export a SimpleFeatureCollection (Read from a MySQL DB) to a KML file, here is my code used to read the infos into the console: private void featureCollectionToKML(SimpleFeatureCollection ...
6
votes
3answers
277 views

Should We Be Using a GIS?

I'm actually a graphic designer - the manufacturing company I work for wants to develop a map with layers for Regional Sales Managers territories, Internal Sales Associates territories, Local Rep ...
1
vote
1answer
672 views

Creating database for climate data with MySQL

I'm working on a project using climate data and MySQL. Before I start to work, what's your advice on the best way to complete this task. I plan on using the following workflow: Analyse the ...
2
votes
1answer
276 views

Fast zipcode detection from latitude/longitude

I need a way to get the zipcode of a lat/long pair fast (<10 ms), and at a high rate (thousands of qps) I've loaded a shapefile from the US Census Bureau into a mysql database with spatial ...
1
vote
0answers
474 views

Problem importing ESRI shapefile information to MySQL

I recently updated to Qgis 2.0 and therefore the "exporttomysql" plugin does not work anymore. What I want to do is exporting the geometry information of a shapefile(Polygon) into a MySQL database. I ...
1
vote
1answer
301 views

How to set style in the database (QGIS)

Is it possible to set style layers in the database? (QGIS) [MySQL database] I would like to set and share my style to other users when they open the layer it's still as my style. Thank you
0
votes
1answer
156 views

Creating an Address Locator with a Database of Geo Information

I am trying to build an Address Locator for ArcGIS 10.1. I would like to use a Microsoft Server MySQL database where location information is stored using an alias, an address, and XY coordinates. What ...
2
votes
0answers
158 views

How to populate ESRI GeoPortal programmatically?

I'm trying to find either some documentation or an example of how to manually populate the GeoPortal metadata datastore. I'm using a MySQL backend. Given a ISO XML file I can manually harvest it but ...
1
vote
0answers
210 views

ogr2gr loading spatial data into mysql

I am trying to load shapefile into mysql (MYISAM) using ogr2ogr and i get an error that says failed to fetch the requested layer. What could be wrong with my statement is it the issue with quotes or ...
1
vote
2answers
289 views

Mysql to nosql. Best solution?

We are working on our new vehicle tracking system. We have been making use of mySQL for the past two years. However we have been discussing moving to a noSQL database. We have a high number of reads ...
5
votes
1answer
16k views

Drawing polyline that grows as the car moves by taking data from MySql and PHP in Google API

I wanted to show the polyline on google Map as car moves with animation (like in this site: http://econym.org.uk/gmap/example_cartrip2.htm) by taking data from MySQL and PHP. For that i refered the ...
1
vote
2answers
382 views

Geoserver - Key Authentication against a MySql Database

I am trying to implement a token based security scheme with Geoserver. What we need to do is send the client a license key when they log into our primary application. This license key is generated by ...
1
vote
2answers
462 views

How does MYSQL accept the WKT representation of a polygon with holes?

I have a set of coordinates that creates a polygon with holes in it. I'm using qgis with mmqgis to extract. How does MYSQL accept the WKT representation of a polygon with holes? By holes I mean ...
1
vote
1answer
1k views

How do I write a MYSQL spatial query to find all polygons (rectangle) that contain any points in a table?

Something like: SELECT * from polygons WHERE bounds CONTAINS(SELECT geom_point from points) Can someone help me out with the syntax? Bounds will always be a rectangular polygon and everything is in ...
2
votes
0answers
357 views

Plotting X, Y coordinates generated from MySQL database in QGIS

Currently running QGIS 1.8.0 on Mac OS X 10.8.4. I can plot points on a map using the "Add delimited text layer" plugin to get x-y coordinates from a text file. However, I'd like to be able to ...
0
votes
0answers
1k views

Convert a decimal degree to meters from the MySQL Spatial GLength

The MySQL Spatial function GLength returns the distance between two points, this distance is in the same unit from the projection. Since I'm using the WGS84 (SRID:4326) the answer will be with ...
1
vote
0answers
634 views

Check if a point is near a linestring with MySQL Spatial Extension (untrustable)

I have to discover if a given point is at least 500 meters (ou other distance) from a route line that exist in my database recorded using the MySQL Spatial. I see there is no similar function in ...
-2
votes
1answer
230 views

Qgis: Select multiple layers in sql-Filter [closed]

I have a Shape-File with lines of streets. Now I want qgis only to show the categories: Type: primary and Type: secondary and Type: motorway. How do I do this? This doesn't work: "type" = 'primary' ...
2
votes
1answer
610 views

PostgreSQL, find points near points

I'm going to have a database with a 'people' table and a 'shops' table. I'd like to find all people within 500m of a shop, and details from both tables. I'm used to working with mySQL, but I'm ...
1
vote
1answer
330 views

How to add MS SQL table using python console?

I have MS SQL Server 2008 R2 database. How to add MS SQL Table using python console in QGIS?
4
votes
2answers
1k views

Which spatial DBMS should I select?

I found there are a number of RDMS have the spatial capability e.g. mysql, postgreSQL I considering which I should go forward! I would like to store the lat lon coord from the tracker to the db ...
1
vote
0answers
74 views

Solve Mysql Spatial error

Converting shp2mysql will leads an null value in geom filed. how to rectify the the problem. shp2mysql -s 32643 landuse landuse LIS >landuse.sql
2
votes
0answers
74 views

how to use ArcGIS cloud hosted map with custom data from mysql

I have map hosted on ArcGIS.com which I can use and embed in my webpage. I have few tables with latitude-longitude in mysql. is there anyway I can add it as marker overlay layer on map taken from ...
2
votes
0answers
193 views

How can I improve my Ray casting algorithm?

I have been using the following function below which have been working well to decide if a point in the polygon but once I have many points which is building the polygon say over few thousand it seems ...
1
vote
0answers
492 views

OpenLayers & MySQL

I have a MySQL database full of data about students (name, age, school, university, city, etc). What I want to do is to transform the data I got to markers on the map. To be more specific, I will for ...
7
votes
1answer
371 views

What constitutes a valid spatial layer when connecting QGIS to MySQL?

I'm trying to work with a MySQL 5.5 table using QGIS 1.8. I can do "Add Vector Layer", choose "Database", and successfully connect to the MySQL connection I previously set up. QGIS shows me a ...
2
votes
1answer
4k views

Import MySQL Spatial vector layer in QGIS

I have a spatial table called 'places' in MySQL, with a spatial column 'pt' (point). I tried to import it in QGIS and no points appear. I created a view 'places_as_text' which reproduces the table but ...
2
votes
0answers
297 views

Different results given by PostGIS and MySQL?

I'm developing a spatial database of administrative areas. I started out with PostGIS, but as MySQL is being used in our other projects, I thought I would at least try to create a spatial-enabled ...
4
votes
3answers
3k views

MySQL to GeoJSON - Formatting Issue

I'm trying to make a select on a mysql table and then write it out to a geojson file. I'm getting close but there are a few issues. Here's what I have so far: <?php require("dbinfo.php"); // ...
1
vote
1answer
848 views

How to connect to MySQL from QGIS in Ubuntu10?

I have just installed Quantum GIS 1.8.0 on my Ubuntu 10. I want to add a MySql table as a data source but I can't see any options for connecting to mysql. Can any one guide me how to connect to ...
2
votes
1answer
668 views

How to speed up this simple MySQL points in the box query

MySQL doesn't have nearest neighbor search so. So I try to come up with a "distance" that's reasonable so the number of returned query is around 20-200. That way innodb doesn't have to compute ...
1
vote
1answer
476 views

QGIS crashes when adding vector layer from mysql or testing connection to mysql

For a while I have been adding layers from my mySql database and all went well. Then I got crashes when adding new vector layers. Then I only got crashes and it is not possible to add layers from ...
3
votes
1answer
180 views

Why can't I edit polygons once they have been saved to MySQL?

I have a simple table with an id field and a polygon field in mySql. Using QGIS I can add new polygons and give them an id. Before saving them I can also edit them. But once a polygon has been saved ...
1
vote
1answer
191 views

How can i symbolize a map dynamically by data stored in mysql database in many tables (these tables have relationship through Primary Key and FK)

How can i symbolize a map dynamically by data stored in mysql database in many tables (these tables have relationship through Primary Key and FK). For instance "Disease Name"(chosen from drop down ...
3
votes
0answers
446 views

Problem connecting QGIS to MySQL [closed]

I'm trying to create a new vector layer and store it in a MySql-database, but when I test the connection I get an error with no detailed information at all. If I give an erroneus password I get a ...
4
votes
1answer
329 views

How to join MySQL data with GIS data using arcpy?

Here is my problem, I have a MySQL database with table in it that has 4 columns: ID, Owner, Address, Legal. And I also have an ArcGIS GDB that has a parcel layer that has in it a PID field. I am ...
2
votes
1answer
373 views

How to do Reverse Geocoding from MySQL/PostGIS Sql ???

I want to do reverse geocoding from MySQL or PostGIS SQL. I have shapefile up to town level of India. So I have a geometry boundary for each town. What I want is to first find the nearest point ...
2
votes
2answers
1k views

Drop Markers and MarkerCluster together from database

I've been working on my map which gets it's details from a MySQL database. I use MarkerCluster Plus to cluster my markers but would like to add the drop animation to it. I found this thread, but ...
1
vote
2answers
258 views

How to get only one feature from MySQL?

I would like to get only one feature from a MySQL database. What am I currently doing? I use the Add Vector Layer functionality in QGis to get the features (polygons) from the MySQL database. They ...
1
vote
1answer
282 views

How to change the path to the mysql socket in Quantum GIS?

I would like to use Mysql in QGIS. But when I want to create a new connection to the database (Add Vector Layer), I can't connect because QGIS is looking for /tmp/mysql.sock But I'm using XAMPP ...
0
votes
1answer
607 views

Is it possible to show markers from MySQL database with Javascript?

I'm interested if it's possible to show markers (latit, longit) from MySQL database with Javascript libraries like Leaflet?
6
votes
1answer
317 views

Trigger geocoding without having to visit page

I'm using Google's geocoder to store results in database then display them on a map on another page. The problem is that each company profile page needs to be visited before it's geocoded. Is there a ...