[Mapserver-users] Determining Shapefile EXTENT

[Edward Waithaka]

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From: MS Newbie
I have managed to download some shapefiles, when I try to load a mapfile, I get a blank image. For one, I don't know which EXTENT to use and again I don't have ArcView (can't afford) to determine the shapefile's Extent. Is there another way of determining the extent of a shapefile without ArcView? The shapefiles I have downloaded come with Word Docs describing the data a little bit e.g
 
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 Additional attribute information
Shape:              Internally generated by Arc/infoArea                Internally generated by Arc/info
Perimeter:         Internally generated by Arc/info
Town_name:     Name of the town represented by the points         Unique identification for each town class. The towns have been classified into 6 categories namely:
 (1) Municipality (2) Township/Town (3) Trading center (4) Market center
(6) Lodges/camps (11) City
Town type:       Class in which the particular towns fall
Layer Characteristics
Projection:        Geographic
Theme:             Administrative
Layer type:       Arc View shape
Feature type:    Point
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Can anyone translate this for me? (atleast 'point' I can use e.g TYPE POINT in the mapfile ...)
Thank you,
Edward.





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<DIV>From: MS Newbie</DIV>
<DIV>I have managed to download some shapefiles, when I try to load a mapfile, I get a blank image. For one, I don't know which EXTENT to use and again I don't have ArcView (can't afford) to determine the shapefile's Extent. Is there another way of determining the extent of a shapefile without ArcView? The shapefiles I have downloaded come with Word Docs describing the data a little bit e.g</DIV>
<DIV> </DIV>
<DIV>----------------------------------------------------------------------------------</DIV>
<DIV> Additional attribute information<SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 10.0pt; mso-bidi-font-weight: bold"><BR><FONT size=2>Shape: <SPAN style="mso-tab-count: 1">             </SPAN>Internally generated by Arc/info</SPAN<BR>Area          </FONT></SPAN><SPAN style="mso-tab-count: 1">      </SPAN>Internally generated by Arc/info</SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 10.0pt; mso-bidi-font-weight: bold"><BR><FONT size=2>Perimeter:<SPAN style="mso-spacerun: yes">       </SPAN><SPAN style="mso-tab-count: 1">  </SPAN>Internally generated by Arc/info</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 10.0pt; mso-bidi-font-weight: bold"><BR><FONT size=2>Town_name:<SPAN style="mso-spacerun: yes">  </SPAN><SPAN
 style="mso-tab-count: 1">   </SPAN>Name of the town represented by the points      <SPAN style="mso-tab-count: 1">   </SPAN>Unique identification for each town class. The towns have been classified into 6 categories namely:</FONT></FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 10.0pt; mso-bidi-font-weight: bold"><SPAN style="mso-tab-count: 1"><BR><FONT size=2> </FONT></SPAN><FONT size=2>(1) </FONT></SPAN><FONT size=2><?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:place><st1:PlaceType><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 10.0pt; mso-bidi-font-weight: bold">Municipality</SPAN></st1:PlaceType><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 10.0pt; mso-bidi-font-weight: bold"> </SPAN><st1:PlaceName><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 10.0pt; mso-bidi-font-weight:
 bold">(2)</SPAN></st1:PlaceName><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 10.0pt; mso-bidi-font-weight: bold"> </SPAN><st1:PlaceType><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 10.0pt; mso-bidi-font-weight: bold">Township</SPAN></st1:PlaceType></st1:place><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 10.0pt; mso-bidi-font-weight: bold">/Town (3) Trading center (4) Market center</SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 10.0pt; mso-bidi-font-weight: bold"></FONT><BR><FONT size=2>(6) Lodges/camps (11) City</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 10.0pt; mso-bidi-font-weight: bold"><BR><FONT size=2>Town type:<SPAN style="mso-spacerun: yes">   </SPAN><SPAN style="mso-tab-count: 1">    </SPAN>Class in which the particular towns fall</FONT></SPAN><BR>Layer Characteristics<SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT:
 150%; mso-bidi-font-size: 10.0pt; mso-bidi-font-weight: bold"><BR><FONT size=2>Projection:<SPAN style="mso-tab-count: 1">        </SPAN>Geographic</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 10.0pt; mso-bidi-font-weight: bold"><BR><FONT size=2>Theme:<SPAN style="mso-tab-count: 1">             </SPAN>Administrative</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 10.0pt; mso-bidi-font-weight: bold"><BR><FONT size=2>Layer type: <SPAN style="mso-tab-count: 1">      </SPAN>Arc View shape</FONT></SPAN><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 10.0pt; mso-bidi-font-weight: bold"><BR><FONT size=2>Feature type:<SPAN style="mso-tab-count: 1">    </SPAN>Point</FONT></SPAN></DIV>
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<DIV><FONT size=2><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 10.0pt; mso-bidi-font-weight: bold">Can anyone translate this for me? (atleast 'point' I can use e.g TYPE POINT in the mapfile ...)</SPAN></FONT></DIV>
<DIV><FONT size=2><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 10.0pt; mso-bidi-font-weight: bold">Thank you,</SPAN></FONT></DIV>
<DIV><FONT size=2><SPAN style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; mso-bidi-font-size: 10.0pt; mso-bidi-font-weight: bold">Edward.</SPAN></FONT></DIV><BR><BR><DIV><IMG style="WIDTH: 149px; HEIGHT: 42.99%" height="50%" src="http://www.geocities.com/e_talis/talis.jpg" width=125></DIV><p><hr SIZE=1>
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