Re: [Opengrads-devel] Shapefile extension: first crack

[Efren S. <efr...@me...>]

Mike,

Meteorology/Oceanography isn't gis either; that is something ESRI has =
never
understood.  I think Mapserver is as much GIS as GoogleEarth is; it =
supports
WMS, WCS, WFS protocols, etc., and even KML.  GoogleEarth is certainly a
nice viewer/client.  Mapserver is a server not a client so there is no
comparison.  You could point a GoogleEarth client to a Mapserver server =
that
returns KML.

-----Original Message-----
From: Mike Fiorino [mailto:mfi...@gm...]=20
Sent: Tuesday, November 27, 2007 12:49 PM
To: efr...@me...
Cc: 'Arlindo da Silva'; ope...@li...
Subject: Re: [Opengrads-devel] Shapefile extension: first crack


hi efren,  i took a look a mapserver.  is this what fnmoc is using these
days?  it really isn't gis, i'm partial to google earth.  thanks /r mike

Efren Serra wrote:
> Arlindo,
>
> With the perl interface, can you encode colors in a shapefile?
>
> We shouldn't encode colors in the shapefiles; I was hoping to use=20
> these shapefiles in conjunction with Mapserver and let the coloring to =

> mapserver .map configuration file.  However, we should encode some=20
> values about the shape in the .dbx file so that we can use mapserver's =

> .map file CLASS value, which defines thematic classes for a given=20
> layer.  A CLASS has an EXPRESSION value that we can use to select=20
> coloring, etc., based on a value encoded in the .dbx file.  For=20
> instance, here is simple sample for coloring Tropical Cyclone Warnings =

> Wind Radiis/Track:
>
>   LAYER
>     NAME "al062007_019_34ktWndRadii"
>     GROUP "tcw"
>     METADATA
>       "wms_title" "al062007_019_34ktWndRadii"   ##required
>     END
>     TYPE  POLYGON
>     STATUS  OFF
>     DATA  /otsr/shapefiles/2007091100/al062007_019_34ktWndRadii
>
>       LABELITEM "RADIUS_NM"
>
>       CLASS
>         NAME "al062007_019_34ktWndRadii"
>         OUTLINECOLOR 255 0 0
>         LABEL
>         MINFEATURESIZE 50
>         MINDISTANCE 150
>         POSITION CC
>         SIZE TINY
>         COLOR 0 0 0
>       END
>       DEBUG ON
>     END
>
>     DUMP TRUE
>     PROJECTION
>       "init=3Depsg:4326"   ##recommended
>     END
>   END # Layer al062007_019_34ktWndRadii
>
>   LAYER
>     NAME "ep102007_017_track"
>     GROUP "tcw"
>     METADATA
>       "wms_title" "ep102007_017_track"   ##required
>     END
>     TYPE  LINE
>     STATUS  OFF
>     DATA  /otsr/shapefiles/2007091100/ep102007_017_track
>
>       LABELITEM "STM_NAME"
>
>       CLASS
>         NAME "ep102007_017_track"
>         COLOR 0 0 0
>         LABEL
>           MINFEATURESIZE 50
>           MINDISTANCE 150
>           POSITION CC
>           SIZE TINY
>           COLOR 0 0 0
>         END
>         DEBUG ON
>       END
>
>     DUMP TRUE
>     PROJECTION
>       "init=3Depsg:4326"   ##recommended
>     END
>   END # Layer ep102007_017_track
>
> - how to draw a line in black, and another in green
>
> Mapserver takes care of the drawing for us via the .map file by using=20
> OUTLINECOLOR
>
> - how to have a rectangle filled "blue"
>
> Mapserver takes care of the drawing for us via the .map file by using=20
> COLOR
>
> - how to define new colors from (red,green,blue) values
>
> COLOR and OUTLINECOLOR take RGB values as shown above.
>
> Do you have access to any GIS software? Is there a free alternative to =

> ARC/View? Which one do you recommend? I just want a way to see if the=20
> file we eventually produce with GrADS can be visualized by standard=20
> GIS software.
>
> Lets use Mapserver from UMN: http://mapserver.gis.umn.edu.  Thanks.
>
> Efren
>
>
>
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