Changeset 4090 for spike/wktraster/scripts/gdal2wktraster.py

Timestamp:

05/20/09 03:42:57 (3 years ago)

Author:

mloskot

Message:

[wktraster] Added -V, --create-raster-overviews option to gdal2wktraster script. It allows to control creation of RASTER_OVERVIEWS table for overviews metadata.

Files:

• spike/wktraster/scripts/gdal2wktraster.py (modified) (5 diffs)

spike/wktraster/scripts/gdal2wktraster.py

@@ -97 +97 @@
     grp_r.add_option("-R", "--register", dest="register", action="store_true", default=False, 
                      help="register the raster as a filesystem (out-db) raster")
-    grp_r.add_option("-O", "--overviews", dest="overviews", action="store_true", default=False, 
-                     help="Create overview tables named as ov_<RASTER TABLE>_<LEVEL> and populate with GDAL-provided overviews (available for regular blocking only)")
+    grp_r.add_option("-O", "--overviews", dest="overviews", action="store_true", default=False,
+                     help='Create overview tables named as ov_<RASTER TABLE>_<LEVEL> and '
+                     'populate with GDAL-provided overviews (regular blocking only)')
     prs.add_option_group(grp_r);
 
     # Optional parameters - database/table manipulation
-    grp_t = OptionGroup(prs, "Database processing",
-                        "Optional parameters used to manipulate database objects")
-    grp_t.add_option("-c", "--create", dest="create_table", action="store_true", default=False, 
-                     help="create new table and populate it with raster(s), this is the default mode")
+    grp_t = OptionGroup(prs, 'Database processing',
+                        'Optional parameters used to manipulate database objects')
+    grp_t.add_option('-c', '--create', dest='create_table', action='store_true', default=False, 
+                     help='create new table and populate it with raster(s), this is the default mode')
     grp_t.add_option("-d", "--drop", dest="drop_table", action="store_true", default=False, 
                      help="drop table, create new one and populate with raster(s)")
@@ -114 +115 @@
     grp_t.add_option("-I", "--index", dest="index", action="store_true", default=False, 
                      help="create a GiST index on the raster column")
+    grp_t.add_option('-V', '--create-raster-overviews', dest='create_raster_overviews_table',
+                     action='store_true', default=False,
+                     help='create RASTER_OVERVIEWS table used to store overviews metadata')
     prs.add_option_group(grp_t);
 
@@ -152 +156 @@
     if opts.overviews and not opts.regular_blocking:
         prs.error("regular blocking mode required to enable overviews support")
+
+    if opts.create_raster_overviews_table and opts.overviews is False:
+        prs.error('create table for RASTER_OVERVIEWS available only if overviews import requested')
 
     # XXX: Now, if --band=Nth, then only Nth band of all specified rasters is dumped/imported
@@ -826 +833 @@
     # Process raster overviews to hex binary, if requested
     # 1. Recalculate grid size per overview, using original block size
-    # 2. Tile overview bands according to original block size
+    # 2. Tile overview bands according to original block size,
+    #    add padding pixels/scanlines if necessary
     if options.regular_blocking is True and options.overviews is True:
         assert options.filename is False,'No support for off-db overviews'
@@ -911 +919 @@
 
     # If overviews requested, CREATE TABLE raster_overviews
-    if opts.overviews:
+    if opts.create_raster_overviews_table:
         sql = make_sql_create_raster_overviews(opts)
         opts.output.write(sql)