raster representation problems

cfb carla.fernandezb at GMAIL.COM
Tue Jan 22 00:02:29 PST 2008


Hi there,

I've some problems with the representation of a raster image (.img). I've
clasiffied it by its pixels, but when I zoom it I get white areas with no
data (and if I make the GetFeatureInfo I get: "msQueryByPoint(): Search
returned no results. No matching record(s) found" in the ms_error file.

I've been trying with several processing directives, but it doesn't change
anything. The image is ok, and I don't know where is the problem...

Here it is the layer object of my .map

LAYER
 NAME 'precipitacion_anual'
 DATA 'D:\datos_prueba\precimed.img'   
 #STATUS on
 GROUP "MEDIO TERRESTRE"
 TYPE RASTER
 TRANSPARENCY ALPHA
  
  #PROCESSING "CLOSE_CONNECTION=DEFER"
  PROCESSING "DITHER=YES"    								 					
  #PROCESSING "SCALE_1=1,255" 
  #PROCESSING "SCALE_2=2,255" 
  #PROCESSING "SCALE_3=3,255" 
  #OFFSITE 255 255 255
  #PROCESSING "SCALE=AUTO"
  #PROCESSING "DITHER=YES"
  TOLERANCE 3
  TOLERANCEUNITS pixels
  DUMP TRUE
  OFFSITE 255 255 255
  DEBUG ON
  
  TEMPLATE "D:\ms4w\maps\etc\template.html"
  MINSCALE 8000
   http://www.nabble.com/file/p15001007/image_p.png #MAXSCALE 1300000
 
METADATA
 "WMS_SRS" 	         "EPSG:23029 EPSG:23030 EPSG:4230 EPSG:4324 EPSG:4326
EPSG:32629 EPSG:32630 EPSG:4267 EPSG:4269 EPSG:4258 EPSG:3035 EPSG:3034"
 "WMS_TITLE"         "Precipitación media anual (mm). Periodo 1961-1980    
"
 "WMS_ABSTRACT"      "Total medio anual de precipitación para el periodo
1961-1980, representado por el fondo de colores de la superficie emergida."
 "WMS_FEATURE_INFO_MIME_TYPE"  "text/html"
 "wms_keywordlist"   "WMS, servidor de mapas en red, Andalucía, Medio
Ambiente, mapas, clima, climatología, hidrología, precipitación atmosférica,
temperatura"
 "wms_extent" 		           "101003 3816667 628642 4288082" 
#"wms_metadataurl_href"       
"http://idena.navarra.es/busquedas/xml/c_toponimia.xml"  #URL donde se
recogen más metadatos sobre la capa
#"wms_metadataurl_type"        "TC211"  #Norma de Metadatos el valor:
"TC211" equivale a ISO 19115
#"wms_metadataurl_format"      "xml"    #
#"wms_dataurl_href"            "...."       # Dirección URL de los datos
asociados
#"wms_dataurl_format"          "xml"        # Formato de los datos
 "WMS_FEATURE_INFO_MIME_TYPE"  "text/html"
 "wms_dataurl_format"          "image/png"
 "wms_metadataurl_format"      "text/html"
 #"gml_featureid"               "FID"
 #"gml_include_items"           "CODIGO,DESCRIPCIO"
END #METADATA
 
 PROJECTION
   "init=epsg:23030"       		     #Proyección UTM European Datum 50 Huso 30
N
   "init=epsg:23029"       		     #Proyección UTM European Datum 50 Huso 29
N
   "init=epsg:4230"         		 #Coordenadas Geográficas ED50 
   "init=epsg:4324"			         #Coordenadas Geográficas WGS 72BE TRANSIT
BROADCAST EPHEMERIS
   "init=epsg:4326" 			     #Coordenadas Geográficas WGS 84
   "init=epsg:32629"       		     #Proyección UTM WGS 84 Huso 29 N
   "init=epsg:32630"       		     #Proyección UTM WGS 84 Huso 30 N
   "init=epsg:4267"       		     #Coordenadas Geográficas North American
Datum 1927 (NAD 27)
   "init=epsg:4269"       		     #Coordenadas Geográficas North American
Datum 1983 (NAD 83)
   "init=epsg:4258"       		     #Coordenadas Elipsoidales ETRS89 IDEE
   "init=epsg:3035"       		     #ETRS89/ETRS-LAEA Para representación y
análisis estadístico pan-Europeos IDEE
   "init=epsg:3034"       		     #ETRS89/ETRS-LCC Para la cartografía
pan-Europeo a escalas menores o iguales a 1:500.000 IDEE
 END	
 
#CLASES A PARTIR DE LA COMPOSICIÓN RGB DE LA PALETA
 CLASSITEM "[pixel]"

  CLASS
    NAME "<100      "
    EXPRESSION ([pixel] < 100)
    STYLE
      COLOR 230 153 0 
    END
  END
  
  CLASS
    NAME "100-200    "
    EXPRESSION ([pixel] >= 100 AND [pixel]  < 200)
    STYLE
      COLOR 227 161 39
    END
  END
  
  CLASS
    NAME "200-300    "
    EXPRESSION ([pixel] >= 200 AND [pixel]  < 300)
    STYLE
      COLOR 224 173 63
    END
  END
  
  CLASS
    NAME "300-400    "
    EXPRESSION ([pixel] >= 300 AND [pixel]  < 400)
    STYLE
      COLOR 219 184 86
    END
  END
  
  CLASS
    NAME "400-500    "
    EXPRESSION ([pixel] >= 400 AND [pixel]  < 500)
    STYLE
      COLOR 214 193 109
    END
  END 

  CLASS
    NAME "500-600     "
    EXPRESSION ([pixel] >= 500 AND [pixel]  < 600)
    STYLE
      COLOR 207 204 132
    END
  END 

  CLASS
    NAME "600-700    "
    EXPRESSION ([pixel] >= 600 AND [pixel]  < 700)
    STYLE
      COLOR 198 214 156
    END
  END   

  CLASS
    NAME "700-800    "
    EXPRESSION ([pixel] >= 700 AND [pixel]  < 800)
    STYLE
      COLOR 189 204 163
    END
  END

  CLASS
    NAME "800-900    "
    EXPRESSION ([pixel] >= 800 AND [pixel]  < 900)
    STYLE
      COLOR 179 194 169
    END
  END

  CLASS
    NAME "900-1000    "
    EXPRESSION ([pixel] >= 900 AND [pixel]  < 1000)
    STYLE
      COLOR 169 184 174
    END
  END

  CLASS
    NAME "1000-1100    "
    EXPRESSION ([pixel] >= 1000 AND [pixel]  < 1100)
    STYLE
      COLOR 161 176 181
    END
  END

  CLASS
    NAME "1100-1200    "
    EXPRESSION ([pixel] >= 1100 AND [pixel]  < 1200)
    STYLE
      COLOR 151 166 186
    END
  END  

  CLASS
    NAME "1200-1300    "
    EXPRESSION ([pixel] >= 1200 AND [pixel]  < 1300)
    STYLE
      COLOR 140 156 191
    END
  END   

  CLASS
    NAME "1300-1400    "
    EXPRESSION ([pixel] >= 1300 AND [pixel]  < 1400)
    STYLE
      COLOR 130 147 196
    END
  END   

  CLASS
    NAME "1400-1500    "
    EXPRESSION ([pixel] >= 1400 AND [pixel]  < 1500)
    STYLE
      COLOR 117 138 207
    END
  END   

  CLASS
    NAME "1500-1600    "
    EXPRESSION ([pixel] >= 1500 AND [pixel]  < 1600)
    STYLE
      COLOR 105 131 207
    END
  END

  CLASS
    NAME "1600-1700    "
    EXPRESSION ([pixel] >= 1600 AND [pixel]  < 1700)
    STYLE
      COLOR 93 123 212
    END
  END    

  CLASS
    NAME "1700-1800    "
    EXPRESSION ([pixel] >= 1700 AND [pixel]  < 1800)
    STYLE
      COLOR 78 115 217
    END
  END    

  CLASS
    NAME "1800-1900    "
    EXPRESSION ([pixel] >= 1800 AND [pixel]  < 1900)
    STYLE
      COLOR 61 106 219
    END
  END    

  CLASS
    NAME "1900-2000    "
    EXPRESSION ([pixel] >= 1900 AND [pixel]  < 2000)
    STYLE
      COLOR 43 100 224
    END
  END    

  CLASS
    NAME "2000-2100    "
    EXPRESSION ([pixel] >= 2000 AND [pixel]  <= 2100)
    STYLE
      COLOR 0 92 230
    END
  END
END #LAYER



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