Generate mapfile using Jinja2

.gitignore

 *.nc
 *.tif
-*.tif.aux.xml
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+*.tif.aux.xml
+mapfile/SEPTREFHUM.map

README.md

@@ -54,4 +54,3 @@ gdal_merge.py -separate in/test_3.tif in/test_4.tif in/test_5.tif in/test_6.tif
 **Could we live with x GeoTIFF files per timestamp, where x is the number of variables?**
 
 
-###
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SEPTREFHUM.py

@@ -7,6 +7,7 @@
 
 import subprocess,glob
 from datetime import datetime, timezone
+from jinja2 import Environment, FileSystemLoader
 import pytz
 import netCDF4 as nc
 
@@ -100,9 +101,11 @@ subprocess.run('cdo -aexpr,"WARNING_STATUS = WHS < 20 ? 2 : -1; WARNING_STATUS =
 wh_3daysum = nc.Dataset('%swh_3daysum.nc' % tmpfile_path, 'r')
 timesteps = wh_3daysum.variables["time"][:]
 timestep_index = 1
+timestep_dates = [] # Used in the mapfile template
 for timestep in timesteps:
     timestep_date = datetime.fromtimestamp(timestep)
     file_date = timestep_date.astimezone(local_timezone).strftime("%Y-%m-%d")
+    timestep_dates.append(file_date)
     # Create NetCDF result file
     subprocess.run('cdo -seltimestep,%s/%s %sresult.nc %sresult_%s.nc' % (timestep_index, timestep_index, tmpfile_path, tmpfile_path, file_date), shell=True)
     # Split all variables into separate GeoTIFF files, using GDAL
@@ -116,8 +119,17 @@ for timestep in timesteps:
     timestep_index = timestep_index + 1
 
 
-# Remove all temporary/intermediary files
-subprocess.run("rm %s*" % tmpfile_path, shell=True)
 
 
+# Generate mapfile
+env = Environment(loader=FileSystemLoader('.'))
+template = env.get_template("mapfile/template.j2")
+output = template.render({
+     "timestep_dates": timestep_dates
+})
+with open("mapfile/SEPTREFHUM.map", 'w') as f:
+        f.write(output)
 
+
+# Remove all temporary/intermediary files
+subprocess.run("rm %s*" % tmpfile_path, shell=True)
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mapfile/template.j2

+MAP
+
+NAME "VIPS Spatial models SEPTREFHUM"
+
+# UTM33
+EXTENT -75000 6450000 1120000 8000000
+UNITS METERS
+MAXSIZE 5120
+
+CONFIG "MS_ERRORFILE" "/disks/data01/mapserver/log/SEPTREFHUM.log" 
+
+# Projection is UTM33
+PROJECTION 
+    "init=epsg:25833"
+END
+
+
+WEB
+    TEMPLATE "/disks/data01/mapserver/wms/SEPTREFHUM/query_template_SEPTREFHUM.html" 
+    IMAGEPATH "/disks/data01/mapserver/tmp/"
+    IMAGEURL "/tmp/"
+    METADATA
+            "wms_keywordlist" "VIPS model Septoria Reference Humidity Model (SEPTREFHUM)"
+            "wms_abstract" "VIPS model SEPTREFHUM"
+        "wms_enable_request"  "*"
+        "wms_title"     "VIPS model SEPTREFHUM"
+        "wms_onlineresource" "https://testvips.nibio.no/cgi-bin/SEPTREFHUM"
+        "wms_getfeatureinfo_formatlist" "text/plain,text/html,text/xml"
+        "wms_accessconstraints" "none"
+        "wms_addresstype" ""
+        "wms_address" "Høgskoleveien 7"
+        "wms_city" "Ås"
+        "wms_stateorprovince" "Ås"
+        "wms_postcode" "1430"
+        "wms_country" "Norway"
+        "wms_contactelectronicmailaddress" "vips@nibio.no"
+        "wms_feature_info_mime_type" "text/html"
+        "wms_contactperson" "Berit Nordskog"
+        "wms_contactposition" "owner"
+        "wms_contactorganization" "Norsk institutt for bioøkonomi (NIBIO)"
+    END
+END #web
+
+############################# Start of legend #########################################################
+# The legend configuration uses the CLASSITEM information in each layer to generate colour icons and labels
+LEGEND
+    STATUS ON
+    KEYSIZE 16 12
+    LABEL
+        TYPE TRUETYPE
+        SIZE 10
+        COLOR 0 0 0
+        OFFSET 0 -3
+    END
+END
+
+{% for timestep_date in timestep_dates %}
+LAYER
+    NAME "SEPTREFHUM.WARNING_STATUS {{ timestep_date }}"
+    DATA "/disks/data01/mapserver/data/SEPTREFHUM/result_{{ timestep_date }}.tif"
+    TYPE RASTER
+    PROCESSING "BANDS=1"
+   
+    
+    STATUS ON
+    METADATA
+      "wms_title"     "Reference humidity model {{ timestep_date }}"  
+    END  
+      CLASSITEM "[pixel]"
+  
+    # class using simple string comparison, equivalent to ([pixel] = 0)
+  
+    CLASS
+      NAME "Varsel ferdig"
+      EXPRESSION ([pixel] < 1) 
+      STYLE
+          COLOR 160 160 160
+      END
+    END
+    CLASS
+      NAME "Data mangler"
+      EXPRESSION ([pixel] >= 1 AND [pixel] < 2) 
+      STYLE
+          COLOR 0 102 255
+      END
+    END
+    CLASS
+      NAME "Ingen risiko"
+      EXPRESSION ([pixel] >= 2 AND [pixel] < 3) 
+      STYLE
+          COLOR 51 204 51
+      END
+    END
+    CLASS
+      NAME "Mulig risiko"
+      EXPRESSION ([pixel] >= 3 AND [pixel] < 4) 
+      STYLE
+          COLOR 255 204 0
+      END
+    END
+    CLASS
+      NAME "Høy risiko"
+      EXPRESSION ([pixel] >= 4) 
+      STYLE
+          COLOR  255 0 0
+      END
+    END
+END # Layer
+  
+LAYER
+     NAME "SEPTREFHUM.WH {{ timestep_date }}"
+     DATA "/disks/data01/mapserver/data/SEPTREFHUM/result_{{ timestep_date }}.tif"
+     TYPE RASTER
+     PROCESSING "BANDS=2"
+     PROCESSING "SCALE=AUTO"
+   
+   
+     STATUS ON
+     METADATA
+       "wms_title"     "Reference humidity model WHS {{ timestep_date }}"
+     END
+    CLASSITEM "[pixel]"
+   
+END # Layer
+
+{% endfor %}
+  
+END #map
+  
+  
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