Increased required rtabmap version to 0.20.14. Added detect_more_loop_closures, global_bundle_adjustment and cleanup_local_grids services. rviz MapCloud: added "Download namespace" parameter.

srv/CleanupLocalGrids.srv

@@ -0,0 +1,24 @@
+#  Cleanup local grids service
+# 
+#     Clear empty space from local occupancy grids 
+#     (and laser scans) based on the current optimized global 2d grid map.
+#     If the map needs to be regenerated in the future (e.g., when
+#     we re-use the map in SLAM mode), removed obstacles won't reappear.
+#     Use this with care and only when you know that the map doesn't have errors, 
+#     otherwise some real obstacles/walls may be cleared if there is too much 
+#     drift in the map.
+#
+
+# Radius in cells around empty cell without obstacles to clear underlying obstacles, default 1 cell if not set.
+int32 radius
+
+# Filter also the scans, default false if not set.
+# The filtered laser scans will be used for localization,
+# so if dynamic obstacles have been removed, localization won't try to
+# match them anymore. Filtering the laser scans cannot be reverted, 
+# but grids can (see DatabaseViewer->Edit menu).
+bool filter_scans
+
+---
+# return the number of grids or scans modified, -1 if there is an error
+int32 modified

srv/DetectMoreLoopClosures.srv

@@ -0,0 +1,27 @@
+# Detect more loop closures service
+#
+#     Based on the current optimized graph, 
+#     this process will try to find more nodes corresponding with each 
+#     other, and thus finding more loop closures to add to graph.
+# 
+
+# Cluster radius (m),     default 1 m if not set
+float32 cluster_radius_max
+
+# Cluster radius min (m), default 0 m if not set
+float32 cluster_radius_min
+
+# Cluster angle (deg),    default 0 deg if not set
+float32 cluster_angle
+
+# Iterations,             default 1 if not set
+int32 iterations
+
+# Add only intra session loop closures
+bool intra_only
+
+# Add only inter session loop closures
+bool inter_only
+---
+# return the number of loop closures detected, or -1 if it failed.
+int32 detected

srv/GlobalBundleAdjustment.srv

@@ -0,0 +1,22 @@
+# Global Bundle Adjustment service
+#
+#       Perform global bundle adjustment. Note that as soon as the map 
+#       is modified again, the graph is re-optimized the standard way (without SBA).
+#       It then makes only sense to use this after a mapping run (and after a call 
+#       to /rtabmap/pause) when you know that the robot will restart in localization 
+#       mode the next time, or at the beginning of the localization session.
+#
+
+# Optimizer type (0=g2o, 1=CVSBA), default 0
+int32 type
+
+# Iterations,        default 0 (use Optimizer/Iterations already loaded in the node)
+int32 iterations
+
+# Pixel variance,    default 0 (use g2o/PixelVariance already loaded in the node)
+float32 pixel_variance
+
+# Use vocabulary matches, default false (rematch all features between frames)
+bool voc_matches
+---
+# return false if failure