By ortles on

This is a reformulation/extension of my question
Can Drupal geotag its content?

I have discovered the existence of PostGIS extensions to PostGreSQL
(which Drupal can use, right?) and of the Carto Module

So the question in my other thread becomes "Can Drupal, using PostGreSQL,
PostGIS and the Carto Module, add to each node and site the functions/capabilities which I originally asked:

"This node is associated these coordinates"

"List all relevant nodes associated to places maximum 100 miles
from my home"

Plus everything mentioned here:

http://interactive.linuxjournal.com/node/8025/ ??

Looking at the carto screenshots it seems Carto can help me better than the location module, but I'd really appreciate any comments/suggestion/pointers
to sites already doing it. Has anybody already integrated these pieces, and how?
Tips, tricks, tutorials, traps to avoid, will work with both drupal 4.6 and 4.7....?

I'd also appreciate your opinion on "are carto and location redundant/overlapping or complementary? If complementary, how and why?"

TIA,

Ortles

⋅ Categories: Drupal 4.6.x, Drupal 4.7.x

Comments

jpulles’s picture

jpulles commented

A first reaction.. The carto module (at http://drupal.org/node/24727 ;-)) uses the mapping functionality of the mappingwidgets framework to show maps in a drupal node. These maps are available from opengis compliant web mapping servers, or google maps.

I haven't yet looked into how this can be combined with that location and/or localities modules. To my opinion, the modules are complimentary: location can provide the data functionality, carto the mapping.

PostGIS/Postgresql is only necessary if you want to use complicated queries with projection conversions or topological operations (point in polygon etc). For calculating a distance between nodes based on lat/long coordinates any database will do.

Greetings,
John.

ortles’s picture

ortles commented

PostGIS/Postgresql is only necessary if you want to use complicated queries with projection conversions or topological operations (point in polygon etc).

I know that, sorry. But probably what I really meant is if there already is any Drupal module with PostGIS support and/or hooks to make Mapserver queries. Does it exist?

Ortles

jpulles’s picture

jpulles commented

No PostGIS support exists in Drupal modules afaik. I also don't know if it would belong in a drupal module, since it depends on postgis/postgresql as a database.
To make mapserver queries is a capability which should still be added to carto and/or mappingwidgets in the form of opengis wfs queries to mapserver.