Sunday, April 22, 2012

Using Oracle Views with Mapguide / FDO

Using views in Oracle is a good way to access data via Mapguide/FDO,
but in order to be able to select a feature, it must have a primary key,
otherwise, selection will fail.

This is the SQL syntax to add a primary key on an Oracle View
alter view add constraint primary key () disable novalidate;

Once the view has a primary key, selection becomes available.

Bruno

From the Mapguide Users Mailing list

Friday, April 20, 2012

Performance Tip for Mapguide Tiled layers with Fusion

Internally, Fusion uses OpenLayers to display maps. By default, titled maps use a buffer factor of 2

http://dev.openlayers.org/docs/files/OpenLayers/Layer/Grid-js.html#OpenLayers.Layer.Grid.buffer

This buffer setting determines how many off screen tiles are loaded, you can tweak this option using the following syntax in your ApplicationDefinition.xml

<Map>
               <Type>MapGuide</Type>
                <SingleTile>false</SingleTile>
                <Extension>
                        <ResourceId>Library:// .....</ResourceId>
                        <Options>
                            <buffer>0</buffer>                               
                        </Options>                       
                </Extension>
</Map>

Setting buffer:0 means that only the initially visible tiles are loaded, which means as you pan, the tiles are loaded as required

Monday, April 09, 2012

Some Quick Carbon Pricing Info

Just a quick link to some important information for both Consumers and Business with regards to introduction of Carbon Pricing in Australia .

Carbon price claims – FAQs for business

BTW: The Australian tax free threshold rises to over $18k as of July 1, meaning one million low income earners no longer pay income tax.