[Mapserver-users] display a translucently layer on top of others

Mon May 5 09:52:46 PDT 2003

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Check out the TRANSPARENCY property.  I believe you have to be running
MapServer 3.7.x for this to kick in.

=20

LAYER

  TRANSPARENCY 75

  CLASS

  END

END

=20

-----Original Message-----
From: Tai Le [mailto:tai.le at sbcglobal.net]=20
Sent: Monday, May 05, 2003 12:11 PM
To: mapserver-users at lists.gis.umn.edu
Subject: [Mapserver-users] display a translucently layer on top of
others

=20

Hello,

I'm new with MapServer. I would like to display a layer (of polygon
type) translucently on top of other layers. One way I can do it is set
its symbol to a "crosshash" style:

=20

SYMBOL
  NAME 'crosshatch'
  TYPE VECTOR
  POINTS
    0 0
    2 2
  END
END

I know this is not the right way, you can "see thru" this layer, but not
truely "translucent".

Is there other way of doing this (also, if we can set the transparency
level)? Thanks.

-- Tai.

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<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Check out the TRANSPARENCY =
property.  I
believe you have to be running MapServer 3.7.x for this to kick =
in.</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>LAYER</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>  TRANSPARENCY =
75</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>  CLASS</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>  END</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>END</span></font></p>

<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>

<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma'>-----Original =
Message-----<br>
<b><span style=3D'font-weight:bold'>From:</span></b> Tai Le
[mailto:tai.le at sbcglobal.net] <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Monday, May 05, =
2003 12:11
PM<br>
<b><span style=3D'font-weight:bold'>To:</span></b>
mapserver-users at lists.gis.umn.edu<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> =
[Mapserver-users] display
a translucently layer on top of others</span></font></p>

<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>Hello,</span></font></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>I'm new with =
MapServer. I
would like to display a layer (of polygon type) translucently on =
top of
other layers. One way I can do it is set its symbol to a
"crosshash" style:</span></font></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'>SYMBOL<br>
  NAME 'crosshatch'<br>
  TYPE VECTOR<br>
  POINTS<br>
    0 0<br>
    2 2<br>
  END<br>
END</span></font></p>

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>I know this is not the =
right way,
you can "see thru" this layer, but not truely
"translucent".</span></font></p>

</div>

<div>

Is there other way of doing =
this
(also, if we can set the transparency level)? Thanks.

</div>

<div>

<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>-- Tai.</span></font></p>

</div>

</div>

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