<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<META content="MSHTML 6.00.2900.3199" name=GENERATOR></HEAD>
<BODY>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=868375714-05022008>Hi,</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=868375714-05022008></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=868375714-05022008>I must
use two different projections (epsg:2393 and 3067) which both have a
common centre meridian 27°E. One is transverse Mercator with scale factor
1, another UTM with scale factor 0.996. Now I can use the
same images, without any physical or on-the-fly reprojection simply by
creating two sets of world files with adjusted origos and pixel
sizes. Actually in my case this leads also to better accuracy because
another system has some local distortions which I can compensate by sliding the
origo to correct place with world file.</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=868375714-05022008>But I
have a problem: vast </SPAN></FONT><FONT face=Arial color=#0000ff
size=2><SPAN class=868375714-05022008>majority of my images are in GeoTIFF
format having internally defined coordinate system epsg:3067. I wonder if
there is some trick to override this projection by world files. Something
like a hidden switch TRUST_WORLDFILE=YES which I could use in the mapfile.
Does such a switch exist?</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=868375714-05022008></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=868375714-05022008>-Jukka
Rahkonen-</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=868375714-05022008></SPAN></FONT> </DIV></BODY></HTML>