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<TITLE>RE: Freegis-list digest, Vol 1 #135 - 8 msgs</TITLE>
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<P><FONT COLOR="#0000FF" SIZE=2 FACE="Arial">Dear all,</FONT>
<BR> <FONT COLOR="#0000FF" SIZE=2 FACE="Arial">This is in continuation with the query I posted on dynamic segmentaion earlier.I am not using arcview/arcinfo etc right now.(We will get it soon)So I may not be able to understand 'coverages' and lingo specific to that product.Can you pls explain this in general terms.I am putting whatever I've understood about DS and pls clarify it.</FONT></P>
<P><FONT COLOR="#0000FF" SIZE=2 FACE="Arial">1) Say I am having a theme named roads (obviously including .shp,.dbf,.shx.)</FONT>
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<P><FONT COLOR="#0000FF" SIZE=2 FACE="Arial">2) I want to view the roughness of the road throughout it's length (which is not a field in the .dbf table)</FONT>
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<P><FONT COLOR="#0000FF" SIZE=2 FACE="Arial">3) Now,I am creating an event table with fields Route_id,From,To, attribute(with values good,bad,fair etc..).</FONT>
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<P><FONT COLOR="#0000FF" SIZE=2 FACE="Arial">Note: Is route_id the foreign key that connects my roads.dbf and the event table?</FONT>
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<P><FONT COLOR="#0000FF" SIZE=2 FACE="Arial">5) How will the map viewer software recognises that the event table values belong to roads.dbf?</FONT>
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<P><FONT COLOR="#0000FF" SIZE=2 FACE="Arial">6) How can it plot the segments(line) in the map over the "roads" theme?</FONT>
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<P><FONT COLOR="#0000FF" SIZE=2 FACE="Arial">7) How the "FROM" & "TO" values are properly recognised and placed in the map?Because from what I've understood it is the .shp file that holds the coordinate info and will be used for plotting of lines in the map.Here are we creating a .shp for every record in the event table?</FONT></P>
<P><FONT COLOR="#0000FF" SIZE=2 FACE="Arial">Regards,</FONT>
<BR><FONT COLOR="#0000FF" SIZE=2 FACE="Arial">Shankar</FONT>
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