Hi Everyone,
I have got myself into a terrible mess with html legends and would appreciate
some assistance, as nothing I do seems to work. I am trying to implement a
legend with check boxes for layer control, that only displays layers that are
in scale on the map. So far so good. My legend template is shown below:
[leg_layer_html Opt_Flag=14]
<html>
<head>
<title></title>
</head>
<body>
<tr bgcolor="#FFFFFF">
<td align="center">
<input type="checkbox" name="layer_status" value="[leg_layer_name]" [if
name=layer_status oper=neq value=0]CHECKED[/if]>
</td>
<td><img src="[leg_icon height=15 width=15]" height=15 width=15></td>
<td><font face="Arial, Helvetica, sans-serif" size="2">[if name=layer_name
oper=neq value=][leg_layer_name][/if][if name=layer_name value=]* Name Not
Set*[/if]</font></td>
</tr>
</body>
</html>
[/leg_layer_html]
My first problem was that when I zoomed in on the map to a scale at which new
layers became visible, they appeared switched off in the legend. All the layers
in my map file have status ON. I resolved that, or so I thought, but now when I
try and switch layers off in the legend, and refresh my map (with a form submit
button) they just stay switched on. Also, I don't really understand the
relationship between having layers declared as cgi variables in my web page and
the behaviour of the legend.
I have searched the documentation on this, and I'm sure it must be something
very simple that I am missing, so I would really appreciate it if someone could
help me out.
Many thanks
Jo
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Joanne Cook BSc MLitt AIFA
Information Systems Coordinator
Oxford Archaeology North
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