Using MapImagery to generate registered .tab files

Both the free and commercial versions of MapImagery, can be used to generate registered .tab files for use with ECW for MapInfo.

The first time that you load an Image Web Server ECW image, you have to do it in a special way. After that you can just use the standard way of opening a MapInfo table.

To create a registered .tab file and .url file for viewing an Image Web Server ECW Image, perform the following steps:

1. From within MapInfo, choose the Open ECW Image option on the MapImagery menu.

or

Choose the Open ECW Image option from the MapImagery toolbar.

2. Choose how you want to open the ECW image. To generate a .tab file suitable for viewing an Image Web Server ECW image via ECW for MapInfo, choose the options shown in the picture below:

3. You should now see the dialog shown below. Enter the URL of the Image Web Server Image. A good way of doing this is to cut and paste the address from a WEB browser, using Control C (to cut from the WEB browser) followed by Control V (to paste into the MapImagery dialog)

4. If a MapInfo .tab file already exists for the algorithm, you will be prompted to confirm that you wish to overwrite the existing .tab file. Note that doing so will overwrite any changes you have made to the projection, units, or tie-point information.

5. MapImagery automatically registers an ECW image the first time that you load the image.

You will be shown the following dialog, which shows you the ER Mapper registration details and allows you to select the corresponding MapInfo projection details.

MapImagery saves away the choice that you make for future use. The next time that you try to load an ECW image with the same projection details, the projection dialog will remember the MapInfo Category, Category Member, and Units that you entered, and fill in these values for you.

6. Both the .TAB file and .URL file (which contains the actual address of the Image Web Server Image) will get saved into the "Default Algorithm Directory", that can be set via the MapImagery Options dialog. You can move both of the files to another directory, as long as they stay together.

See also:

Opening Local ECW or JP2 files in MapInfo

Opening Image Web Server URL images in MapInfo