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Hi folk,<br>
one question on visualization based on logic criteria.<br>
I have a huge vectorial shp file (thousand of records). An example
of attributes as following:<br>
<u></u>
<table style="border-collapse: collapse; width: 272pt;" width="363"
border="0" cellpadding="0" cellspacing="0">
<col style="width: 48pt;" width="64"> <col style="width: 30pt;"
width="40"> <col style="width: 48pt;" width="64" span="3"> <col
style="width: 50pt;" width="67"> <tbody>
<tr style="height: 15pt;" height="20">
<td class="xl65" style="height: 15pt; width: 48pt;" width="64"
height="20">Shape</td>
<td class="xl66" style="border-left: medium none; width:
30pt;" width="40">A</td>
<td class="xl66" style="border-left: medium none; width:
48pt;" width="64">B</td>
<td class="xl66" style="border-left: medium none; width:
48pt;" width="64">C</td>
<td class="xl66" style="border-left: medium none; width:
48pt;" width="64">D</td>
<td class="xl66" style="border-left: medium none; width:
50pt;" width="67">COMBI</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl65" style="height: 15pt; border-top: medium
none;" height="20">Polygon</td>
<td class="xl67" style="border-top: medium none; border-left:
medium none;">0</td>
<td class="xl67" style="border-top: medium none; border-left:
medium none;">0</td>
<td class="xl67" style="border-top: medium none; border-left:
medium none;">3</td>
<td class="xl67" style="border-top: medium none; border-left:
medium none;">4</td>
<td class="xl67" style="border-top: medium none; border-left:
medium none;">0_0_3_4</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl65" style="height: 15pt; border-top: medium
none;" height="20">Polygon</td>
<td class="xl67" style="border-top: medium none; border-left:
medium none;">0</td>
<td class="xl67" style="border-top: medium none; border-left:
medium none;">0</td>
<td class="xl67" style="border-top: medium none; border-left:
medium none;">3</td>
<td class="xl67" style="border-top: medium none; border-left:
medium none;">0</td>
<td class="xl67" style="border-top: medium none; border-left:
medium none;">0_0_3_0</td>
</tr>
<tr style="height: 15pt;" height="20">
<td class="xl65" style="height: 15pt; border-top: medium
none;" height="20">....</td>
<td class="xl65" style="border-top: medium none; border-left:
medium none;">....</td>
<td class="xl65" style="border-top: medium none; border-left:
medium none;">....</td>
<td class="xl65" style="border-top: medium none; border-left:
medium none;">....</td>
<td class="xl65" style="border-top: medium none; border-left:
medium none;">....</td>
<td class="xl65" style="border-top: medium none; border-left:
medium none;">....</td>
</tr>
</tbody>
</table>
<br>
There are 25 combination of the 4 fields A-B-C-D visualized by
unique code in COMBI field.<br>
I managed a mapfile like:<br>
...<br>
LAYER<br>
NAME "MH"<br>
TYPE POLYGON<br>
DATA "melanie/topo"<br>
TRANSPARENCY 35<br>
GROUP "MASCHERA"<br>
STATUS ON<br>
TEMPLATE "ttt"<br>
CLASSITEM "COMBI"<br>
CLASS<br>
EXPRESSION "0_0_3_0"<br>
STYLE<br>
COLOR 25 255 255 <br>
OUTLINECOLOR 0 0 0<br>
END<br>
END<br>
END<br>
....<br>
I visualize in this way only the polygons with the value in COMBI
field. I can obviously add same class expressions for every value I
want. My doubt is:<br>
if I need to visualize all the "n" combination available like
differently "n" layers in a same view how can I do? I have to
separate the original file in 25 shp layers (quite boring) or can I
provide using only the original complete shp file?<br>
Example on the layer tree:<br>
<br>
Thanks.<br>
<br>
Simone<br>
<br>
<div class="moz-signature">-- <br>
<br>
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