Thank you Frank. I don't know what I was thinking of when I created the world file. (I used bottom left instead of top right).
It now works properly. Cheers, Stephen On Tuesday 24 January 2006 23:29, Frank Warmerdam wrote: > On 1/24/06, Stephen Davies <[EMAIL PROTECTED]> wrote: > > G'day all. > > > > I have been successful in using ECW files as raster layers but am > > now trying to use a PNG file plus a .wld file with blank results. > > ... > > > EXTENT 735810 8454630 742810 8461630 > > ... > > > My dd1.wld file looks like: > > > > 2.1 > > 0.0000000000 > > 0.0000000000 > > -2.1 > > 746046.00 > > 8450252.00 > > Stephen, > > The world file above indicates that the left-most "X" value > in your png file will be 746046E which is east of the right > most side of your map extent (742810E). Your PNG file > may be drawing just fine ... it just isn't on your map. > > Failing to analyse extents of data carefully is a common > user error. > > Best regards, > -- > ---------------------------------------+----------------------------- >--------- I set the clouds in motion - turn up | Frank Warmerdam, > [EMAIL PROTECTED] light and sound - activate the windows | > http://pobox.com/~warmerdam and watch the world go round - Rush | > Geospatial Programmer for Rent -- ======================================================================== This email is for the person(s) identified above, and is confidential to the sender and the person(s). No one else is authorised to use or disseminate this email or its contents. Stephen Davies Consulting Voice: 08-8177 1595 Adelaide, South Australia. Fax: 08-8177 0133 Computing & Network solutions. Mobile:0403 0405 83
