[GRASS-SVN] r51182 - in grass/trunk/temporal: . tr.aggregate tr.extract tr.mapcalc tv.what.strds

svn_grass at osgeo.org svn_grass at osgeo.org
Thu Mar 29 09:57:41 EDT 2012


Author: huhabla
Date: 2012-03-29 06:57:41 -0700 (Thu, 29 Mar 2012)
New Revision: 51182

Added:
   grass/trunk/temporal/tr.mapcalc/
   grass/trunk/temporal/tr.mapcalc/Makefile
   grass/trunk/temporal/tr.mapcalc/test.tr.mapcalc.sh
   grass/trunk/temporal/tr.mapcalc/tr.mapcalc.html
   grass/trunk/temporal/tr.mapcalc/tr.mapcalc.py
Modified:
   grass/trunk/temporal/Makefile
   grass/trunk/temporal/tr.aggregate/tr.aggregate.py
   grass/trunk/temporal/tr.extract/test.tr.extract.sh
   grass/trunk/temporal/tr.extract/tr.extract.py
   grass/trunk/temporal/tv.what.strds/tv.what.strds.py
Log:
New module tr.mapcalc, added parallel processing support for tr.extract and tr.mapcalc.


Modified: grass/trunk/temporal/Makefile
===================================================================
--- grass/trunk/temporal/Makefile	2012-03-29 13:56:23 UTC (rev 51181)
+++ grass/trunk/temporal/Makefile	2012-03-29 13:57:41 UTC (rev 51182)
@@ -15,6 +15,7 @@
 	tr.to.rast3 \
 	tr.univar \
 	tr.list \
+	tr.mapcalc \
 	tr.series \
 	tr.export \
 	tr.out.vtk \

Modified: grass/trunk/temporal/tr.aggregate/tr.aggregate.py
===================================================================
--- grass/trunk/temporal/tr.aggregate/tr.aggregate.py	2012-03-29 13:56:23 UTC (rev 51181)
+++ grass/trunk/temporal/tr.aggregate/tr.aggregate.py	2012-03-29 13:57:41 UTC (rev 51182)
@@ -29,7 +29,7 @@
 #%option
 #% key: granularity
 #% type: string
-#% description: The aggregation granularity, format absolue time "x years, x months, x weeks, x days, x hours, x minutes, x seconds" or a double value for relative time
+#% description: The aggregation granularity, format absolute time "x years, x months, x weeks, x days, x hours, x minutes, x seconds" or a double value for relative time
 #% required: yes
 #% multiple: no
 #%end
@@ -45,7 +45,7 @@
 #%option
 #% key: method
 #% type: string
-#% description: Aggregate operation to be peformed on the raster maps
+#% description: Aggregate operation to be performed on the raster maps
 #% required: yes
 #% multiple: no
 #% options: average,count,median,mode,minimum,min_raster,maximum,max_raster,stddev,range,sum,variance,diversity,slope,offset,detcoeff,quart1,quart3,perc90,quantile,skewness,kurtosis
@@ -58,11 +58,21 @@
 #%option G_OPT_R_BASE
 #%end
 
+#%option
+#% key: nprocs
+#% type: integer
+#% description: The number of r.mapcalc processes to run in parallel
+#% required: no
+#% multiple: no
+#% answer: 2
+#%end
+
 #%flag
 #% key: n
 #% description: Register Null maps
 #%end
 
+from multiprocessing import Process
 import grass.script as grass
 import grass.temporal as tgis
 
@@ -79,6 +89,7 @@
     register_null = flags["n"]
     method = options["method"]
     sampling = options["sampling"]
+    nprocs = int(options["nprocs"])
 
     # Make sure the temporal database exists
     tgis.create_temporal_database()
@@ -114,7 +125,7 @@
             new_sp = tgis.space_time_raster_dataset(out_id)
         else:
             dbif.close()
-            grass.fatal(_("Space time raster dataset <%s> is already in database, use overwrite flag to overwrite") % out_id)
+            grass.fatal(_("Space time raster dataset <%s> is already in the database, use overwrite flag to overwrite") % out_id)
 
     temporal_type, semantic_type, title, description = sp.get_initial_values()
     new_sp.set_initial_values(temporal_type, semantic_type, title, description)
@@ -137,6 +148,8 @@
     next_start_time = first_start_time
 
     count = 0
+    proc_count = 0
+    proc_list = []
     while next_start_time <= last_start_time:
         start = next_start_time
         if sp.is_time_absolute():
@@ -149,7 +162,7 @@
 
         if input_map_names:
             tgis.aggregate_raster_maps(sp, new_sp, mapset, input_map_names, base, start, end, count, method, register_null, dbif)
-
+	    
         count += 1
 
     # Update the spatio-temporal extent and the raster metadata table entries

Modified: grass/trunk/temporal/tr.extract/test.tr.extract.sh
===================================================================
--- grass/trunk/temporal/tr.extract/test.tr.extract.sh	2012-03-29 13:56:23 UTC (rev 51181)
+++ grass/trunk/temporal/tr.extract/test.tr.extract.sh	2012-03-29 13:57:41 UTC (rev 51182)
@@ -20,12 +20,12 @@
 # The first @test
 # We create the space time raster inputs and register the raster maps with absolute time interval
 
-tr.extract --o input=precip_abs1 output=precip_abs2 where="start_time > '2001-06-01'" \
-           expression=" if(precip_abs1 > 400, precip_abs1, null())" base=new_prec
+tr.extract --o --v input=precip_abs1 output=precip_abs2 where="start_time > '2001-06-01'" \
+           expression=" if(precip_abs1 > 400, precip_abs1, null())" base=new_prec nprocs=2
 t.info type=strds input=precip_abs2
 
-tr.extract --o -n input=precip_abs1 output=precip_abs3 where="start_time > '2001-06-01'" \
-           expression=" if(precip_abs1 > 400, precip_abs1, null())" base=new_prec
+tr.extract --o --v -n input=precip_abs1 output=precip_abs3 where="start_time > '2001-06-01'" \
+           expression=" if(precip_abs1 > 400, precip_abs1, null())" base=new_prec nprocs=4
 t.info type=strds input=precip_abs3
 
 t.unregister type=rast maps=prec_1,prec_2,prec_3,prec_4,prec_5,prec_6

Modified: grass/trunk/temporal/tr.extract/tr.extract.py
===================================================================
--- grass/trunk/temporal/tr.extract/tr.extract.py	2012-03-29 13:56:23 UTC (rev 51181)
+++ grass/trunk/temporal/tr.extract/tr.extract.py	2012-03-29 13:57:41 UTC (rev 51182)
@@ -40,6 +40,15 @@
 #%option G_OPT_R_BASE
 #%end
 
+#%option
+#% key: nprocs
+#% type: integer
+#% description: The number of r.mapcalc processes to run in parallel
+#% required: no
+#% multiple: no
+#% answer: 1
+#%end
+
 #%flag
 #% key: n
 #% description: Register Null maps
@@ -47,6 +56,7 @@
 
 import grass.script as grass
 import grass.temporal as tgis
+from multiprocessing import Process
 
 ############################################################################
 
@@ -58,6 +68,7 @@
     where = options["where"]
     expression = options["expression"]
     base = options["base"]
+    nprocs = int(options["nprocs"])
     register_null = flags["n"]
 
     # Make sure the temporal database exists
@@ -91,23 +102,79 @@
     # The new space time raster dataset
     new_sp = tgis.space_time_raster_dataset(out_id)
     if new_sp.is_in_db():
-        if grass.overwrite() == True:
-            new_sp.delete(dbif)
-	    new_sp = tgis.space_time_raster_dataset(out_id)
-        else:
+        if grass.overwrite() == False:
             grass.fatal(_("Space time raster dataset <%s> is already in database, use overwrite flag to overwrite") % out_id)
-
-    temporal_type, semantic_type, title, description = sp.get_initial_values()
-    new_sp.set_initial_values(temporal_type, semantic_type, title, description)
-    new_sp.insert(dbif)
-
+            
     rows = sp.get_registered_maps("id", where, "start_time", dbif)
 
+    new_maps = {}
     if rows:
 	num_rows = len(rows)
 	
 	grass.percent(0, num_rows, 1)
 	
+	# Run the r.mapcalc expression
+        if expression:
+	    count = 0
+	    proc_count = 0
+	    proc_list = []
+	    for row in rows:
+		count += 1
+		
+		grass.percent(count, num_rows, 1)
+		
+		map_name = "%s_%i" % (base, count)
+
+		expr = "%s = %s" % (map_name, expression.replace(sp.get_id(), row["id"]))
+		expr = expr.replace(sp.base.get_name(), row["id"])
+
+		map_id = map_name + "@" + mapset
+
+		new_map = sp.get_new_map_instance(map_id)
+
+		# Check if new map is in the temporal database
+		if new_map.is_in_db(dbif):
+		    if grass.overwrite() == True:
+			# Remove the existing temporal database entry
+			new_map.delete(dbif)
+			new_map = sp.get_new_map_instance(map_id)
+		    else:
+			grass.error(_("Raster map <%s> is already in temporal database, use overwrite flag to overwrite"))
+			continue
+
+		grass.verbose(_("Apply r.mapcalc expression: \"%s\"") % expr)
+		
+		proc_list.append(Process(target=run_mapcalc, args=(expr,)))
+		proc_list[proc_count].start()
+		proc_count += 1
+		
+		if proc_count == nprocs:
+		    proc_count = 0
+		    exitcodes = 0
+		    for proc in proc_list:
+			proc.join()
+			exitcodes += proc.exitcode
+			
+		    if exitcodes != 0:
+			grass.fatal(_("Error while r.mapcalc computation"))
+			
+		    # Empty proc list
+		    proc_list = []
+		new_maps[row["id"]] = new_map
+	
+	grass.percent(0, num_rows, 1)
+	
+	# Insert the new space time raster dataset
+	if new_sp.is_in_db():
+	    if grass.overwrite() == True:
+		new_sp.delete(dbif)
+		new_sp = tgis.space_time_raster_dataset(out_id)
+		
+	temporal_type, semantic_type, title, description = sp.get_initial_values()
+	new_sp.set_initial_values(temporal_type, semantic_type, title, description)
+	new_sp.insert(dbif)
+	
+	# Register the maps in the database
         count = 0
         for row in rows:
             count += 1
@@ -118,34 +185,10 @@
             old_map.select(dbif)
             
             if expression:
+		
+		if new_maps.has_key(row["id"]):
+		    new_map = new_maps[row["id"]]
 
-                map_name = "%s_%i" % (base, count)
-
-                expr = "%s = %s" % (map_name, expression.replace(sp.get_id(), row["id"]))
-                expr = expr.replace(sp.base.get_name(), row["id"])
-
-                map_id = map_name + "@" + mapset
-
-                new_map = sp.get_new_map_instance(map_id)
-
-                # Check if new map is in the temporal database
-                if new_map.is_in_db(dbif):
-                    if grass.overwrite() == True:
-                        # Remove the existing temporal database entry
-                        new_map.delete(dbif)
-                        new_map = sp.get_new_map_instance(map_id)
-                    else:
-                        grass.error(_("Raster map <%s> is already in temporal database, use overwrite flag to overwrite"))
-                        continue
-
-                grass.verbose(_("Apply r.mapcalc expression: \"%s\"") % expr)
-
-                ret = grass.run_command("r.mapcalc", expression=expr, overwrite=grass.overwrite(), quiet=True)
-
-                if ret != 0:
-                    grass.error(_("Error while r.mapcalc computation, continue with next map"))
-                    break
-
                 # Read the raster map data
                 new_map.load()
                 
@@ -167,8 +210,8 @@
 
                 new_sp.register_map(new_map, dbif)
             else:
-                new_sp.register_map(old_map, dbif)
-
+                new_sp.register_map(old_map, dbif)          
+                
         # Update the spatio-temporal extent and the raster metadata table entries
         new_sp.update_from_registered_maps(dbif)
 	
@@ -176,6 +219,14 @@
         
     dbif.close()
 
+###############################################################################
+
+def run_mapcalc(expr):
+    """Helper function to run r.mapcalc in parallel"""
+    return grass.run_command("r.mapcalc", expression=expr, overwrite=grass.overwrite(), quiet=True)
+    
+###############################################################################
+
 if __name__ == "__main__":
     options, flags = grass.parser()
     main()

Added: grass/trunk/temporal/tr.mapcalc/Makefile
===================================================================
--- grass/trunk/temporal/tr.mapcalc/Makefile	                        (rev 0)
+++ grass/trunk/temporal/tr.mapcalc/Makefile	2012-03-29 13:57:41 UTC (rev 51182)
@@ -0,0 +1,7 @@
+MODULE_TOPDIR = ../../
+
+PGM = tr.mapcalc
+
+include $(MODULE_TOPDIR)/include/Make/Script.make
+
+default: script $(TEST_DST)

Added: grass/trunk/temporal/tr.mapcalc/test.tr.mapcalc.sh
===================================================================
--- grass/trunk/temporal/tr.mapcalc/test.tr.mapcalc.sh	                        (rev 0)
+++ grass/trunk/temporal/tr.mapcalc/test.tr.mapcalc.sh	2012-03-29 13:57:41 UTC (rev 51182)
@@ -0,0 +1,38 @@
+# Test for tr.mapcalc 
+
+# We need to set a specific region in the
+# @preprocess step of this test. We generate
+# raster with r.mapcalc and create several space time raster inputs
+# with relative and absolute time
+# The region setting should work for UTM and LL test locations
+g.region s=0 n=80 w=0 e=120 b=0 t=50 res=10 res3=10 -p3
+
+r.mapcalc --o expr="prec_1 = rand(0, 550)"
+r.mapcalc --o expr="prec_2 = rand(0, 450)"
+r.mapcalc --o expr="prec_3 = rand(0, 320)"
+r.mapcalc --o expr="prec_4 = rand(0, 510)"
+r.mapcalc --o expr="prec_5 = rand(0, 300)"
+r.mapcalc --o expr="prec_6 = rand(0, 650)"
+
+t.create --o type=strds temporaltype=absolute output=precip_abs1 title="A test" descr="A test"
+t.create --o type=strds temporaltype=absolute output=precip_abs2 title="A test" descr="A test"
+t.register -i type=rast input=precip_abs1 maps=prec_1,prec_2,prec_3,prec_4,prec_5,prec_6 start="2001-01-01" increment="3 months"
+t.register type=rast input=precip_abs2 maps=prec_1,prec_2,prec_3,prec_4,prec_5,prec_6
+
+t.info precip_abs1
+t.info precip_abs2
+
+# The first @test
+tr.mapcalc --o --v -n inputs=precip_abs1,precip_abs2 output=precip_abs3 \
+           expression=" precip_abs1 + precip_abs2" base=new_prec \
+           method=equal nprocs=6
+t.info type=strds input=precip_abs3
+
+tr.mapcalc --o --v -s inputs=precip_abs1,precip_abs2,precip_abs3 output=precip_abs4 \
+           expression=" (precip_abs1 + precip_abs2) / precip_abs3 at PERMANENT " base=new_prec \
+           method=equal nprocs=6
+t.info type=strds input=precip_abs4
+
+t.unregister type=rast maps=prec_1,prec_2,prec_3,prec_4,prec_5,prec_6
+t.unregister type=rast maps=new_prec_1,new_prec_2,new_prec_3,new_prec_4,new_prec_5,new_prec_6
+t.remove type=strds input=precip_abs1,precip_abs2,precip_abs3,precip_abs4

Added: grass/trunk/temporal/tr.mapcalc/tr.mapcalc.html
===================================================================
Added: grass/trunk/temporal/tr.mapcalc/tr.mapcalc.py
===================================================================
--- grass/trunk/temporal/tr.mapcalc/tr.mapcalc.py	                        (rev 0)
+++ grass/trunk/temporal/tr.mapcalc/tr.mapcalc.py	2012-03-29 13:57:41 UTC (rev 51182)
@@ -0,0 +1,362 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+############################################################################
+#
+# MODULE:	tr.mapcalc
+# AUTHOR(S):	Soeren Gebbert
+#
+# PURPOSE:	Perform r.mapcalc expressions on maps of sampled space time raster datasets
+# COPYRIGHT:	(C) 2012 by the GRASS Development Team
+#
+#		This program is free software under the GNU General Public
+#		License (version 2). Read the file COPYING that comes with GRASS
+#		for details.
+#
+#############################################################################
+
+#%module
+#% description: Perform r.mapcalc expressions on maps of sampled space time raster datasets
+#% keywords: temporal
+#% keywords: mapcalc
+#%end
+
+#%option G_OPT_STRDS_INPUTS
+#%end
+
+#%option
+#% key: expression
+#% type: string
+#% description: The r.mapcalc expression applied to each time step of the sampled data
+#% required: yes
+#% multiple: no
+#%end
+
+#%option G_OPT_T_SAMPLE
+#% key: method
+#% answer: during,overlap,contain,equal
+#%end
+
+#%option G_OPT_STRDS_OUTPUT
+#%end
+
+#%option G_OPT_R_BASE
+#% required: yes
+#%end
+
+#%option
+#% key: nprocs
+#% type: integer
+#% description: The number of r.mapcalc processes to run in parallel
+#% required: no
+#% multiple: no
+#% answer: 1
+#%end
+
+#%flag
+#% key: n
+#% description: Register Null maps
+#%end
+
+#%flag
+#% key: s
+#% description: Check spatial overlap
+#%end
+
+from multiprocessing import Process
+import copy
+import grass.script as grass
+import grass.temporal as tgis
+
+############################################################################
+
+def main():
+
+    # Get the options
+    inputs = options["inputs"]
+    output = options["output"]
+    expression = options["expression"]
+    base = options["base"]
+    method = options["method"]
+    nprocs = int(options["nprocs"])
+    register_null = flags["n"]
+    spatial = flags["s"]
+    
+    # Create the method list
+    method = method.split(",")
+        
+    # Make sure the temporal database exists
+    tgis.create_temporal_database()
+    
+    # We need a database interface for fast computation
+    dbif = tgis.sql_database_interface()
+    dbif.connect()
+
+    mapset =  grass.gisenv()["MAPSET"]
+    
+    input_name_list = inputs.split(",")
+    
+    # Process the first input
+    if input_name_list[0].find("@") >= 0:
+	id = input_name_list[0]
+    else:
+	id = input_name_list[0] + "@" + mapset
+	
+    first_input = tgis.space_time_raster_dataset(id)
+    
+    if first_input.is_in_db(dbif) == False:
+	dbif.close()
+	grass.fatal(_("Space time raster dataset <%s> not found in temporal database") % (id))
+
+    # Fill the object with data from the temporal database
+    first_input.select(dbif)
+    
+    # All additional inputs in reverse sorted order to avoid wrong name substitution
+    input_name_list = input_name_list[1:]
+    input_name_list.sort()
+    input_name_list.reverse()
+    input_list = []
+        
+    for input in input_name_list:
+
+	if input.find("@") >= 0:
+	    id = input
+	else:
+	    id = input + "@" + mapset
+	    
+	sp = tgis.space_time_raster_dataset(id)
+	
+	if sp.is_in_db(dbif) == False:
+	    dbif.close()
+	    grass.fatal(_("Space time raster dataset <%s> not found in temporal database") % (id))
+
+	sp.select(dbif)
+	
+	input_list.append(copy.copy(sp))
+
+    # Create the new space time raster dataset
+    if output.find("@") >= 0:
+        out_id = output
+    else:
+        out_id = output + "@" + mapset
+        
+    new_sp = tgis.space_time_raster_dataset(out_id)
+    
+    # Check if in database
+    if new_sp.is_in_db(dbif):
+        if grass.overwrite() == False:
+	    dbif.close()
+            grass.fatal(_("Space time raster dataset <%s> is already in database, use overwrite flag to overwrite") % out_id)
+ 
+    # Sample all inputs by the first input and create a sample matrix
+    if spatial:
+        grass.message(_("Start spatio-temporal sampling"))
+    else:
+        grass.message(_("Start temporal sampling"))
+    map_matrix = []
+    id_list = []
+    sample_map_list = []
+    # First entry is the first dataset id
+    id_list.append(first_input.get_name())
+    
+    if len(input_list) > 0:
+	has_samples = False
+	for dataset in input_list:
+	    list = dataset.sample_by_dataset(stds=first_input, method=method, spatial=spatial, dbif=dbif)
+	    
+	    # In case samples are not found
+	    if not list and len(list) == 0:
+		dbif.close()
+		grass.message(_("No samples found for map calculation"))
+		return 0
+	    
+	    # The fist entries are the samples
+	    map_name_list = []
+	    if has_samples == False:
+		for entry in list:
+		    granule = entry["granule"]
+		    # Do not consider gaps
+		    if granule.get_id() == None:
+			continue
+		    sample_map_list.append(granule)
+		    map_name_list.append(granule.get_name())
+		# Attach the map names
+		map_matrix.append(copy.copy(map_name_list))
+		has_samples = True
+		
+	    map_name_list = []
+	    for entry in list:
+		maplist = entry["samples"]
+		granule = entry["granule"]
+		
+		# Do not consider gaps in the sampler
+		if granule.get_id() == None:
+		    continue
+		
+		if len(maplist) > 1:
+		    grass.warning(_("Found more than a single map in a sample granule. "\
+		    "Only the first map is used for computation. "\
+		    "Use tr.aggregate.ds to create synchronous datasets."))
+		
+		# Store all maps! This includes non existent maps, identified by id == None 
+		map_name_list.append(maplist[0].get_name())
+	    
+	    # Attach the map names
+	    map_matrix.append(copy.copy(map_name_list))
+
+	    id_list.append(dataset.get_name())
+    else:
+	list = first_input.get_registered_maps_as_objects(dbif=dbif)
+	
+	if list == None:
+	    dbif.close()
+            grass.message(_("No maps in input dataset"))
+            return 0
+	
+	map_name_list = []
+	for map in list:
+	    map_name_list.append(map.get_name())
+	    sample_map_list.append(map)
+	
+	# Attach the map names
+	map_matrix.append(copy.copy(map_name_list))
+    
+   
+    # Needed for map registration
+    map_list = []
+	
+    if len(map_matrix) > 0:
+	
+	grass.message(_("Start r.mapcalc computation"))
+	    
+	count = 0
+	# Get the number of samples
+	num = len(map_matrix[0])
+	
+	# Parallel processing
+        proc_list = []
+        proc_count = 0
+	
+	# For all samples
+        for i in range(num):
+            
+            count += 1
+	    grass.percent(count, num, 1)
+
+	    # Create the r.mapcalc statement for the current time step
+	    map_name = "%s_%i" % (base, count)   
+	    expr = "%s = %s" % (map_name, expression)
+            
+            # Check that all maps are in the sample
+            valid_maps = True
+            # Replace all dataset names with their map names of the current time step
+            for j in range(len(map_matrix)):
+		if map_matrix[j][i] == None:
+		    valid_maps = False
+		    break
+		# Substitute the dataset name with the map name
+		expr = expr.replace(id_list[j], map_matrix[j][i])
+
+	    # Proceed with the next sample
+	    if valid_maps == False:
+		continue
+		
+	    # Create the new map id and check if the map is already in the database
+	    map_id = map_name + "@" + mapset
+
+	    new_map = first_input.get_new_map_instance(map_id)
+
+	    # Check if new map is in the temporal database
+	    if new_map.is_in_db(dbif):
+		if grass.overwrite() == True:
+		    # Remove the existing temporal database entry
+		    new_map.delete(dbif)
+		    new_map = first_input.get_new_map_instance(map_id)
+		else:
+		    grass.error(_("Raster map <%s> is already in temporal database, use overwrite flag to overwrite"))
+		    continue
+
+	    # Set the time stamp
+	    if sample_map_list[i].is_time_absolute():
+		start, end, tz = sample_map_list[i].get_absolute_time()
+		new_map.set_absolute_time(start, end, tz)
+	    else:
+		start, end = sample_map_list[i].get_relative_time()
+		new_map.set_relative_time(start, end)
+	    
+	    map_list.append(new_map)
+	    
+	    # Start the parallel r.mapcalc computation
+	    grass.verbose(_("Apply r.mapcalc expression: \"%s\"") % expr)
+	    
+	    proc_list.append(Process(target=run_mapcalc, args=(expr,)))
+	    proc_list[proc_count].start()
+	    proc_count += 1
+	    
+	    if proc_count == nprocs:
+		proc_count = 0
+		exitcodes = 0
+		for proc in proc_list:
+		    proc.join()
+		    exitcodes += proc.exitcode
+		    
+		if exitcodes != 0:
+		    dbif.close()
+		    grass.fatal(_("Error while r.mapcalc computation"))
+		    
+		# Empty process list
+		proc_list = []
+		
+	# Register the new maps in the output space time dataset
+	grass.message(_("Start map registration in temporal database"))
+	    
+	# Overwrite an existing dataset if requested
+	if new_sp.is_in_db(dbif):
+	    if grass.overwrite() == True:
+		new_sp.delete(dbif)
+		new_sp = tgis.space_time_raster_dataset(out_id)
+		
+	# Copy the ids from the first input
+	temporal_type, semantic_type, title, description = first_input.get_initial_values()
+	new_sp.set_initial_values(temporal_type, semantic_type, title, description)
+	# Insert the dataset in the temporal database
+	new_sp.insert(dbif)
+    
+	count = 0
+	
+	for new_map in map_list:
+
+            count += 1
+	    grass.percent(count, num, 1)
+	    
+	    # Read the raster map data
+	    new_map.load()
+	    
+	    # In case of a null map continue, do not register null maps
+	    if new_map.metadata.get_min() == None and new_map.metadata.get_max() == None:
+		if not register_null:
+		    continue
+
+	    # Insert map in temporal database
+	    new_map.insert(dbif)
+
+	    new_sp.register_map(new_map, dbif)
+
+        # Update the spatio-temporal extent and the raster metadata table entries
+        new_sp.update_from_registered_maps(dbif)
+	
+	grass.percent(1, 1, 1)
+        
+    dbif.close()
+
+###############################################################################
+
+def run_mapcalc(expr):
+    """Helper function to run r.mapcalc in parallel"""
+    return grass.run_command("r.mapcalc", expression=expr, overwrite=grass.overwrite(), quiet=True)
+
+###############################################################################
+
+if __name__ == "__main__":
+    options, flags = grass.parser()
+    main()
+


Property changes on: grass/trunk/temporal/tr.mapcalc/tr.mapcalc.py
___________________________________________________________________
Added: svn:executable
   + *

Modified: grass/trunk/temporal/tv.what.strds/tv.what.strds.py
===================================================================
--- grass/trunk/temporal/tv.what.strds/tv.what.strds.py	2012-03-29 13:56:23 UTC (rev 51181)
+++ grass/trunk/temporal/tv.what.strds/tv.what.strds.py	2012-03-29 13:57:41 UTC (rev 51182)
@@ -118,7 +118,7 @@
 
     if not rows:
         dbif.close()
-        grass.fatal(_("Space time vector dataset <%s> is empty") % sg.get_id())
+        grass.fatal(_("Space time vector dataset <%s> is empty") % sp.get_id())
 
     # Sample the raster dataset with the vector dataset and run v.what.rast
     for row in rows:



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