Hi Matthew,
If the workspace DOES open eventually, ie it isn't broken, then in my
experience this is due to a seamless table in the workspace slowing
things down. A workspace contains a list of Mapbasic commands that are
executed sequentially, and in a typical workspace that creates a map,
the general sequence is as follows:
1. Open tables
2. Create map window with tables
3. Set map window properties (set view, reorder layers, toggle
visibility etc)
Critically, the map window is opened in the step 2 before the view
(scale and position) is set and layers' visibility disabled in step 3.
Initially then, the map window opens up at the default view for one of
the tables listed in step 2 (I suspect the one that would be on top in
Mapinfo's internal layer ordering logic). Data from the other tables in
the map are loaded for this view before the step 3 is reached. So if a
large seamless layer is present, and the default view displays a lot of
it, then Mapinfo will freeze whilst it loads all the necessary tables
for the seamless layer. I guess the same thing might happen with large
raster or vector tables, though the auto zoom layering setting can
prevent it for rasters.
The way to avoid the freezing then is to set the default view of the
topmost table to a small extent using the 'set map layer 1 default zoom
command'. You can find the topmost layer by adding all the tables to an
existing map window and seeing which comes out on top.
It would be nice to have Mapinfo include an automatic zoom layering
option for seamless tables, in the same way as rasters and grids, to
avoid this sort of problem.
Andy
Matthew Dolan wrote:
I have a workspace that, when I attempt to open, freezes up and does
nothing. I have never experienced this before. Does anyone have any
suggestions?
Thank you,
** Matt Dolan **
** Director of Market Analytics & GIS **
* Colliers ** Arnold *
*4350 West * * Cypress St, Suite 300 *
* Tampa , FL 33607-4175 *
* 813.221.2290 *
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Andy Harfoot
GeoData Institute
University of Southampton
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