first commit for post-processing

- the whole structure is ready.
- next step whould be execute methods and then write methods
- post-processing after simulation is not started yet.

src/PostProcessData/region/regionPoints/centerPointsRegionPoints.cpp

@@ -0,0 +1,86 @@
+#include "centerPointsRegionPoints.hpp"
+#include "fieldsDataBase.hpp"
+#include "Set.hpp"
+#include "pStructSelector.hpp"
+
+bool pFlow::centerPointsRegionPoints::selectIds()
+{
+    if(!firstTimeUpdate_) return true;
+    firstTimeUpdate_ = false;
+    
+    word selector =  probDict_.getVal<word>("selector");
+    
+    if(selector == "id")
+    {
+        auto idList = probDict_.getVal<uint32List>("ids");
+        Set<uint32> uniqueIds;
+
+        uniqueIds.insert(idList.begin(), idList.end());
+
+        for(auto& id:uniqueIds)
+        {
+            ids_.push_back(id);
+        }
+    }
+    else
+    {
+        auto selectorPtr = pStructSelector::create(
+            selector, 
+            database().pStruct(), 
+            probDict_);
+        auto selectedPoints = selectorPtr->selectedPoints();
+        ids_.resize(selectedPoints.size());
+        ids_.assign(selectedPoints.begin(), selectedPoints.end());
+    }
+
+    volume_.resize(ids_.size(),1.0);
+    diameter_.resize(ids_.size(),1.0);
+    center_.resize(ids_.size(), realx3(0,0,0));
+    selectedPoints_.resize(ids_.size(), -1);
+    return false;
+}
+
+pFlow::centerPointsRegionPoints::centerPointsRegionPoints(
+    const dictionary &dict,
+    fieldsDataBase &fieldsDataBase)
+    : regionPoints(dict, fieldsDataBase),
+      idName_(dict.getValOrSet<word>("idName", "id")),
+      probDict_(dict)
+{
+    auto idList = dict.getVal<uint32List>("ids");
+    Set<uint32> uniqueIds;
+
+    uniqueIds.insert(idList.begin(), idList.end());
+
+    for(auto& id:uniqueIds)
+    {
+        ids_.push_back(id);
+    }
+
+    selectedPoints_.resize(ids_.size());
+}
+
+bool pFlow::centerPointsRegionPoints::update()
+{
+    if(!selectIds()) return false;
+    
+    if(ids_.empty()) return true;
+
+    const auto& idField = database().updateFieldUint32(idName_);
+    selectedPoints_.fill(-1);
+
+    for(uint32 i = 0; i < idField.size(); ++i)
+    {
+        for( uint32 j=0; j< ids_.size(); ++j)
+        {
+            if(idField[i] == ids_[j])
+            {
+                selectedPoints_[j] = i;
+                break;
+            }
+        }
+    }
+
+    return false;
+}
+