Datamine Discover KB - Layer Control

How do I determine the projection of a map window or table?

Josh Knight — Wed, 11 Apr 2018 00:22:38 GMT

In MapInfo 64-bit, the projection is displayed in the Status Bar at the bottom of the Mapinfo window.

Alternatively, Right click in the mapper window and select the Projection Info from the pop-up menu. The first tab while show the Map's projection, and other tables will display each layer's projection.

To change a Map windows projection, you will need to navigate to MAP>Map Options dialog, and click projection.

I've added a raster or grid image to my map window, but it does not appear.

Josh Knight — Wed, 24 Dec 2008 04:26:58 GMT

Try the following:

1/. Ensure that the map window view encompasses the raster image. Right-click in the map window, select the View Entire Layer menu option, and choose either the 'All Layers' or image name from the pull
down list. Press OK.

2/. In MapInfo's Layer Control dialog, is the image ticked as visible? Does the image layer's tick have a *?
If so, Zoom Layering has been enabled for this image, and the map window view scale is outside the preset zoom range for this image.
To disable Zoom Layering, double-left click on the image in the Layer Control and deselect the 'Display within Zoom Range' option. Press OK to return to the map window. the Image should now be displayed.

Note: Zoom Layering can be permanently disabled for all raster images by selecting the MapInfo PRO>Options>Map Window option, and deselect the Automatic Raster Zoom Layering tick box and Automatic Grid Zoom Layering (pictured below).

I cannot remember where this table is located on my computer! How do I show a table's file location?

Josh Knight — Tue, 17 Jun 2008 04:34:56 GMT

In the Mapinfo Layer Control or Table List window, simply hover the cursor over any layer to open a tooltip which contains the full path to the TAB file.