[Mapserver-users] Non-Rectangular Tiles in TILEINDEX ?

Bruce, Bob CON BBruce at gov.mb.ca
Wed Apr 30 16:54:12 PDT 2003


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I have been experimenting with TILEINDEXs in order to evaluate their
functionality for my applications.
 
I have successfully displayed a TILEINDEX of 20 orthophotos in my browser.
 
Next I wanted to try displaying a set of project mapping areas and built an
index map of polygons of these areas. I included this index map as a
TILEINDEX in my map file and do not get anything displayed, instead I get a
blank display. This leads me to wonder if this is because my tile polygons
are non-rectangular. Does the Map Server require tiles to be rectangular or
can it work with irregularly shaped tiles? I have successfully displayed my
dataset that I'm using as a TILEINDEX as a line file, so I know that the
server will work with this file.
 
For your reference, I have included the definition of this layer:
 
LAYER # DLS Polys
  NAME "DLSPolys"
  TILEINDEX "TilesWWinnipeg_CARIS/TilesWWinnipeg"
  TILEITEM "MAPKEY"
  STATUS DEFAULT
  TYPE POLYGON
  CLASSITEM "MAPKEY"
  CLASS # Whole DLS Parcel
    STATUS ON
    NAME "WHOLE DLSPOLY"
    COLOR 255 202 149
    OUTLINECOLOR 0 0 0
  END # end of Whole DLS Parcel class object
END # end of layer object

thanks,
            Bob Bruce
****************************************************************************
****************************** 
**    Bob Bruce, P.Eng.         Geomatics Support Engineer 
**    bbruce at gov.mb.ca          Manitoba Geomatics/Remote Sensing Branch, 
**    work # (204) 945-6636             1007 Century Street, 
**    home # (204) 256-4615             Winnipeg, Manitoba, Canada, R3H 0W4 
**    FAX  # (204) 945-1365             
** 
**    The Manitoba Centre for:  
**      Cadastral & Topographical Mapping, and Remote Sensing 
**      See us on the Web at: http://www.gov.mb.ca/conservation/geomatics/
<http://www.gov.mb.ca/conservation/geomatics/cada_mapping/index.html>
cada_mapping/index.html
**          and: http://www.gov.mb.ca/conservation/geomatics/index.html
<http://www.gov.mb.ca/conservation/geomatics/index.html>  
**      Check out our digital maps at: http:// <http://mli.gov.mb.ca/>
mli.gov.mb.ca/ 
****************************************************************************
******************************
 

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<DIV><SPAN class=941553123-30042003><FONT face=Arial size=2>I have been 
experimenting with TILEINDEXs in order to evaluate their functionality for my 
applications.</FONT></SPAN></DIV>
<DIV><SPAN class=941553123-30042003><FONT face=Arial 
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=941553123-30042003><FONT face=Arial size=2>I have successfully 
displayed a TILEINDEX  of 20 orthophotos in my browser.</FONT></SPAN></DIV>
<DIV><FONT face=Arial size=2></FONT><FONT face=Arial size=2></FONT><FONT 
face=Arial size=2></FONT> </DIV>
<DIV><SPAN class=941553123-30042003><FONT face=Arial size=2>Next I wanted to try 
displaying a set of project mapping areas and built an index map of polygons of 
these areas. I included this index map as a TILEINDEX in my map file and do not 
get anything displayed, instead I get a blank display. This leads me to wonder 
if this is because my tile polygons are non-rectangular. Does the Map Server 
require tiles to be rectangular or can it work with irregularly shaped tiles? I 
have successfully displayed my dataset that I'm using as a TILEINDEX as a line 
file, so I know that the server will work with this file.</FONT></SPAN></DIV>
<DIV><SPAN class=941553123-30042003><FONT face=Arial 
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=941553123-30042003><FONT face=Arial size=2>For your reference, 
I have included the definition of this layer:</FONT></SPAN></DIV>
<DIV><SPAN class=941553123-30042003><FONT face=Arial 
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=941553123-30042003><FONT face=Arial size=2>LAYER # DLS 
Polys<BR>  NAME "DLSPolys"<BR>  TILEINDEX 
"TilesWWinnipeg_CARIS/TilesWWinnipeg"<BR>  TILEITEM "MAPKEY"<BR>  
STATUS DEFAULT<BR>  TYPE POLYGON<BR>  CLASSITEM "MAPKEY"<BR>  
CLASS # Whole DLS Parcel<BR>    STATUS ON<BR>    
NAME "WHOLE DLSPOLY"<BR>    COLOR 255 202 
149<BR>    OUTLINECOLOR 0 0 0<BR>  END # end of Whole DLS 
Parcel class object<BR>END # end of layer object<BR></FONT></SPAN></DIV>
<DIV><FONT face=Arial size=2><SPAN 
class=941553123-30042003>thanks,</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN 
class=941553123-30042003>            
Bob Bruce</SPAN></FONT></DIV>
<DIV><FONT color=#0000ff><FONT face=Arial 
size=1>**********************************************************************************************************</FONT> 
<BR><FONT face=Arial size=1>**    Bob Bruce, P.Eng. 
        Geomatics Support Engineer</FONT> 
<BR><FONT face=Arial size=1>**    bbruce at gov.mb.ca  
        Manitoba Geomatics/Remote Sensing 
Branch,</FONT> <BR><FONT face=Arial size=1>**    work # (204) 
945-6636             1007 
Century Street,</FONT> <BR><FONT face=Arial size=1>**    home # 
(204) 256-4615     
        Winnipeg, Manitoba, Canada, R3H 
0W4</FONT> <BR><FONT face=Arial size=1>**    FAX  # (204) 
945-1365             
</FONT><BR><FONT face=Arial size=1>**</FONT> <BR><FONT face=Arial 
size=1>**    The Manitoba Centre for:  </FONT><BR><FONT 
face=Arial size=1>**      Cadastral & Topographical 
Mapping, and Remote Sensing</FONT> <BR><FONT face=Arial 
size=1>**      See us on the Web at:<U> <A 
href="http://www.gov.mb.ca/conservation/geomatics/cada_mapping/index.html" 
target=_blank>http://www.gov.mb.ca/conservation/geomatics/</U>cada_mapping/index.html</FONT></FONT></A><BR><FONT 
color=#0000ff><FONT face=Arial size=1>**      
    and:</FONT><U> <FONT face=Arial size=1><A 
href="http://www.gov.mb.ca/conservation/geomatics/index.html" 
target=_blank>http://www.gov.mb.ca/conservation/geomatics/index.html</A></FONT></U> 
<BR></FONT><FONT face=Arial color=#0000ff 
size=1>**      <SPAN 
class=089143421-04042003>Check out our digital maps at</SPAN>:<U> <A 
href="http://mli.gov.mb.ca/" target=_blank>http://<SPAN 
class=089143421-04042003>mli</SPAN>.gov.mb.ca/</A></U><FONT 
face="Times New Roman" size=3> 
</FONT><BR>**********************************************************************************************************</FONT></DIV>
<DIV> </DIV></BODY></HTML>

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