Web Mapping Illustrated 
by Tyler Mitchell

The unconfirmed error reports are from readers.  They have not yet been 
approved or disproved by the author or editor and represent solely the
opinion of the reader.

Here's a key to the markup:
        [page-number]: serious technical mistake
        {page-number}: minor technical mistake
        <page-number>: important language/formatting problem
        (page-number): language change or minor formatting problem
        ?page-number?: reader question or request for clarification

This page was updated April 19, 2007.


UNCONFIRMED  errors and comments from readers: 


{26} middle;
Arc/Info Binary Grid (.adf) repeated

P.S. your 9780596008659.confirmed page has mangled reports for p. 179-180


{84} example 6-11;
For the command,
ogrinfo data airports | grep ` NAME'
Replace inverted commas ' NAMES' by quotation marks " NAMES"


(85) The first example;
For the example,
ogrinfo data airports | grep ' NAME' | wc -1
In the end, it is difficult to understand that it is the letter l,& not the number 1.


{179}  example 11-2, action value of form tag;
action="/cgi-bin/mapserv"

does not work with MS4W.  I had to change it to

action="/cgi-bin/mapserv.exe"


{181}  example 11-3, action value of form tag;
action="/cgi-bin/mapserv"

does not work with MS4W.  I had to change it to

action="/cgi-bin/mapserv.exe"


{198}  Example 11-8. "Adding a layer of labels to the map" line 17;
As printed on page 198 (Example 11-8), line 17:

...
PROJECTION
  "proj=latlong"
  "proj=WGS84"   # line 17
END
...


Should read(?):
...
PROJECTION
  "proj=latlong"
  "ellps=WGS84"   # changes here?
END
...


User comment:
In this case the map file example ("global.map") does work as printed. However, based
on the Example 11-5 ("Setting projection of the map and source layers") shown on page
187, the example shown here on page 198 is at a minimum inconsistent and if the
"LAYER" were in a different projection (not in decimal degrees) it would most likely
not display correctly (perhaps this may depend on which version of MapServer is in
use. In this case the examples were used with MapServer version 4.8.0.b1).