bb.donnay-software.com

Hi all,

I am working on an application that will require Mapping and GIS. I need advice on a good control that I can use.

Thanks.

Joe

unixkd wrote:I am working on an application that will require Mapping and GIS. I need advice on a good control that I can use.

just the "Map" Control or Frontend ?
if you talk about Frontend : PostgesSQL + PostGIS

Thanks.

I need both "Map" control and ProgGIS frontend.

But Xbase++ 2.0 that handles ProgreSQL has not been released and the release date is not certain. How can I handle this project in the interim ?

Joe

unixkd wrote:But Xbase++ 2.0 that handles ProgreSQL has not been released and the release date is not certain. How can I handle this project in the interim ?

what do you expect from pgDBE ?
it is "just" a DBE and you can use "simple" Xbase (all Version) "Filter" or Scope which pgDBE "translate" into a Query.

unixkd wrote:I need both "Map" control and ProgGIS frontend.

i don´t know what you want to do with it.

if you have a "Travel Salesmen" Problem and just want to calculate a Traffic Route you can use M$ Mappoint with activeX.

if you want to make Geographic Coordinate "Calculation" you need something like OpenMap or PostGIS which use PostgesSQL as Frontend. PostgesSQL does have Function and Fieldtype for those Calculation which Xbase++ does not have.

to make a Connection from Xbase++ to PostgreSQL you can use SQLexpress++ ( with ODBC ) or libpq.dll API using Phil Ide Class.
( still works with latest PG Version ! )
Connection is "simple" but as i say you have to "ask" (send) the right "Question" (Query) to get Result