Changeset 790 for XIOS/trunk/src/filter/spatial_transform_filter.cpp

Timestamp:

11/16/15 16:21:45 (8 years ago)

Author:

rlacroix

Message:

Add a new field attribute grid_path to allow chaining spatial transformations.

Intermediate grids must be separated by comma and the source/destination grids must not be listed.

File:

• XIOS/trunk/src/filter/spatial_transform_filter.cpp (modified) (1 diff)

XIOS/trunk/src/filter/spatial_transform_filter.cpp

@@ -18 +18 @@
             "Impossible to build the filter graph if either the source or the destination grid are null.");
 
-    // TODO: Implement the real path finding algorithm after a solution has been found
-    //       to support initializing grid transformations during parsing.
-    CSpatialTransformFilterEngine* engine = CSpatialTransformFilterEngine::get(destGrid->getTransformations());
-    boost::shared_ptr<CSpatialTransformFilter> filter(new CSpatialTransformFilter(gc, engine));
+    boost::shared_ptr<CSpatialTransformFilter> firstFilter, lastFilter;
+    // Note that this loop goes from the last transformation to the first transformation
+    do
+    {
+      CGridTransformation* gridTransformation = destGrid->getTransformations();
+      CSpatialTransformFilterEngine* engine = CSpatialTransformFilterEngine::get(destGrid->getTransformations());
+      boost::shared_ptr<CSpatialTransformFilter> filter(new CSpatialTransformFilter(gc, engine));
 
-    return std::make_pair(filter, filter);
+      if (!lastFilter)
+        lastFilter = filter;
+      else
+        filter->connectOutput(firstFilter, 0);
+
+      firstFilter = filter;
+      destGrid = gridTransformation->getGridSource();
+    }
+    while (destGrid != srcGrid);
+
+    return std::make_pair(firstFilter, lastFilter);
   }