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3
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27 views

Optimisation of MySQL JOIN based on a Within match

I have a table of points and boundaries, and am trying to add the boundary ID which a point is within. However, using a LEFT JOIN ON Within(location, boundary) it is taking about 3.5 hours match ...
3
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0answers
348 views

Why are OGR (MySQL / PostGIS) connections extremely slow in QGIS 2.0 - 2.8 (when compared to QGIS 1.8)?

In our project we have been using QGIS 1.8 Lisboa with a MySQL database placed on a server accessed via local network since two years. Everything is working fine and quick. The vector layers can be ...
2
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0answers
41 views

Can joined tables be served by QGIS Server WFS?

I'm trying to figure out whether it's just me, or if I'm forgetting a setting. I have a shapefile which I make available for WFS-requests. Now I added a join (to a MySQL table). I tried playing ...
2
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0answers
182 views

Get Distance between two point on linestring using mysql Spatial

I have a linestring and two point on this linestrin according to my picture i want distance between two point as base of linestring please hellp me
2
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0answers
6k views

How to get multiple dynamic custom markers on map using MapBox in MySQL and PHP?

Can anyone help me to get multiple custom markers on mapbox using lat/long from the database MySQL. I want to use 2 types of markers on the map, for which I have two separate table of lat/longs in the ...
2
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0answers
235 views

How to check if a point is within bounded rectangle from Java

I make an AJAX request to retrieve data from a mysql database. I add the data to google.maps.Data layer as geojson. I would only like to load the data based on the viewport. To obtain the viewport ...
2
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0answers
419 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 ...
2
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0answers
78 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
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0answers
216 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 ...
2
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0answers
314 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 ...
2
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0answers
438 views

How to access mysql data from python built-in console?

I'm writing a QGIS Plugin, and somewhere I want to present data from a MySQL database. It's simple data(strings,etc), not Geospatial, or vector data. I'm familiar with querying databases from python ...
2
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0answers
168 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
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0answers
15 views

How to add ST_GeomFromEWKT in mysql?

I am using geoalchemy2 with mysql database. I have a polygon field. While inserting I am getting this error - from appmain import application from flask_sqlalchemy import SQLAlchemy db = ...
1
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0answers
25 views

Creating line-strings from points in MySQL

I am extracting the lat/long information from Geo-tagged images and storing them in MySQL. I want to get a line-string from the points, I looked into the GROUP_CONCAT() function but I am not able to ...
1
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0answers
20 views

Export SQL table with images to Qgis

In MySQL Workbench 6.3 CE I created a table with some columns. One of this columns is of data type 'BLOB' to insert an image. Now i am looking for a way to export this table and import this table ...
1
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0answers
48 views

Using MySQL vector with QGIS?

I have a problem with mysql vector; when I connect to the MySQL table (containing a geometry column), the attribute table is loaded correctly, the map is centered properly but the geometries are not ...
1
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0answers
24 views

Querying for points within polygon in MySQL?

I have polygon in this format POLYGON(23.816364700000001 87.574939799999996 ,23.814872699999999 87.572279100000003 ,23.812595399999999 87.572279100000003 ,23.809925700000001 87.571678300000002 ...
1
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0answers
41 views

mysql query to transpose latitude and longitude of a polygon

I have mysql table with shape column that stores the latitude and longitude, I need to write a sql query that transposes latitude as longitude and vice versa. I couldn't find any easy to get this ...
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0answers
17 views

How to show neighboring polygons and polygon in which point exists

We have a table which has polygon related data stored. For finding if a point (long,lat) is within that polygon I am using following query in mysql SET @vasantKunjSectorC = 'polygon((77.161266 ...
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0answers
82 views

Open source UML modeling software (GIS)

I am wondering is there any opensource UML to Postgresql Mysql tables conversion software which also includes the geospatial datatypes ? Note:I want conversion from UML to database. and NOT ...
1
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0answers
96 views

QGIS MySql database queries over 4000

When i open file of QGIS 2.6.1 with 32 layers whose tables all come from the same database, i see that by just opening the file, QGIS already sends 4100+ "SELECT..."-questions to the database, and ...
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0answers
365 views

Route tracking on google map php

i have to make a software which is track a vehicle on Google map using GPS. I have almost done this project but i am stuck at a point, the client require a system that track the bus in a route. I am ...
1
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0answers
60 views

how manage mysql spatial polygons in parent child style

I want to store location-polygon data in a parent-child relation. I am using spatial data in MySQL and Google map for polygon. Eg: World 1.1 US 1.2 China 1.3 Japan 1.4 South Africa 1.4.1 Pretoria ...
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0answers
74 views

QGIS crashes when trying to display features form MySQL

I import shapefiles into MySQL using the following command: ogr2ogr -f MySQL MySQL:GIS,host=localhost,user=root,password=root /home/user/Public/myshape.shp -nln Shape_table -update -overwrite -lco ...
1
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0answers
278 views

Openlayers Map Marker / Popup Behaviour Mobile Devices

Quick overview. i am creating a site with a map using Openlayers and Open Street Maps. User clicks on map and fills out a popup form and submits form. Markers appear at lonlat points where map was ...
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0answers
304 views

parsing an osm-file with PHP simpleXML :: getting a few more tags

I am new to PHP's SimpleXML. upate: The original version of this question was derived from here: OSM Data parsing to get the nodes with child I am thankful that hakre offered a great example in ...
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0answers
175 views

Is there a pgRouting-like library for MySQL?

As described in the OsmDB.pm page I have created a schema in MySQL from an OSM file. Now I have to find the length of the shortest path between two given points (preferably using the A* algorithm). ...
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0answers
303 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 ...
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0answers
591 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
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0answers
237 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
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0answers
789 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 ...
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0answers
77 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
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0answers
583 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 ...
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0answers
25 views

How to make some constraint to be evaluated first in mysql?

SELECT BusinessID FROM tableauxiliary WHERE MBRContains( GeomFromText ( 'MULTIPOINT(-6.1928749092968 106.7651250907,-6.1771250907032 106.7808749093)' ), ...
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0answers
124 views

refactoring an XSLT processor with minor changes

having an extremely large xml-file - which is derived from the field of geo informatics. i got it from a German subsite or the OpenStreetMap-Project: the Geograpical-Engineering-site that deilvers a ...
0
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0answers
9 views

Displaying MySQL database as layer on map?

I have a mysql database with lat/long/name and i would to show them on the map as a layer(that is if i update my database you would see the changes when you reload the page or redraw). Esri arcgis ...
0
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0answers
28 views

mysql query to find area overlap

I have US zipcodes data in a mysql table where each zipcode shape is stored as polygon. From a given point (latitude and longitude) I want to know the zipcodes that overlap within 1 mile radius and ...
0
votes
0answers
38 views

GeoServer support for WKT geospatial data that is read from a database

I have geospatial data stored in a MemSQL database in the Well-Known Text (WKT) format. I would like to visualize it in GeoServer. MemSQL supports the MySQL Wire Protocol and therefore I used the ...
0
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0answers
44 views

Creating Tile server without using any Base Map

I have a database of points with coordinates on server (MySQL + PHP). I need to create a transparent (without an image of map) tiles with the points (one tile can be several points) format (x) (y) ...
0
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0answers
109 views

How can I connect MYSQL database in python for QGIS desktop Application?

I am following below process. 1 - Setting You must install a MySQL driver before doing anything. Unlike PHP, only the SQLite driver is installed by default with Python. The most used package to do ...
0
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0answers
81 views

why did my python mysql script stop working, with error on fetchone()?

This code was working a couple weeks ago, then without changing anything, it started throwing an error. Here's the code: #Query climate table sFrom = dateIncrement.strftime("%Y-%m-%d ...
0
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0answers
203 views

Geo spatial extensions in MariaDB vs MySQL

MariaDB is interchangeable with MySQL, but are there any differences in terms of each respective GIS features? Switching from one to the other is still a drop-in replacement with geo data types or ...
0
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0answers
92 views

What is the best way to store GML polygons in MySQL?

I have large .GML files with polygons of regions around the country, some are a single polygon, some are multiPolygon. What is the best way to store this in MySQL? I was assuming that I would ...
0
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0answers
74 views

Street maps with php and mysql

I am trying to create a website that can show how much the houses in the area are worth. I am able to get gis data, but not exactly sure what to do with it or what exactly is needed. I am extremely ...
0
votes
0answers
165 views

Installing mysql_fdw on Windows

I want to create a join between a spatial database (PostGIS) and a non spatial database from MySQL. Both databases have a unique ID who can be joined. I found a way to do this with PostgreSQL and a ...
0
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0answers
83 views

Problem with MySQL CENTROID() in 5.6

We're testing out an upgrade to MySQL 5.6 to take advantage of it's enhanced GIS functionality, and we ran into this problem: SET @mpoly = GeomFromText('MULTIPOLYGON(((0 0,0 2,2 2,2 0,0 0)),((0 4,0 ...
0
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0answers
393 views

Exporting spatial object in mysql to shapefile with spatial reference

Info: Win7, MySQL 5.x and OSGEO4W 1.11 To import a shapeafile to MySQL I use this ogr2ogr command: ogr2ogr -f MySQL MySQL:gis,user=root,password=password C:\posto_pianco.shp -nln pianco_post -a_srs ...
0
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0answers
124 views

GIS Street Maps

I am extremely new to GIS, but very interested in it. I am trying to create a php application that can display a map, and based on the address show like a 1 mile radius all around and the color each ...
0
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0answers
115 views

mysql foreign data wrapper for postgres with parameter substitution

I have created a mysql_fdw for my postgres and when i try to run the one with a subquerry that has parameter substitution it does create a table but on querying the foreign table it throws an error: ...
0
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0answers
76 views

schools are included as nodes, while others are areas - how to get all of them?

goal: want to extract schools from Overpass-api: now with an update: the allready exinsting code runs nicely. At the moment it is no problem that i do not catch the shools as ways nodes or rleatins. ...