+ allow to set u/v dirs for B-Spline fit

src/App/Placement.cpp

@@ -33,7 +33,7 @@
 using namespace App;
 
 
-PROPERTY_SOURCE(App::Placement, App::DocumentObject)
+PROPERTY_SOURCE(App::Placement, App::GeoFeature)
 
 
 //===========================================================================

src/Mod/ReverseEngineering/Gui/FitBSplineSurface.cpp

@@ -35,13 +35,14 @@
 #include <Gui/BitmapFactory.h>
 #include <Gui/Command.h>
 #include <Gui/Document.h>
+#include <Gui/Selection.h>
 #include <Gui/ViewProvider.h>
 #include <Gui/WaitCursor.h>
 
 #include <Base/Interpreter.h>
 #include <App/Application.h>
 #include <App/Document.h>
-#include <App/DocumentObject.h>
+#include <App/Placement.h>
 
 
 using namespace ReenGui;
@@ -65,7 +66,6 @@ FitBSplineSurfaceWidget::FitBSplineSurfaceWidget(const App::DocumentObjectT& obj
   : d(new Private())
 {
     d->ui.setupUi(this);
-    d->ui.uvdir->setDisabled(true);
     d->obj = obj;
     restoreSettings();
 }
@@ -139,8 +139,22 @@ bool FitBSplineSurfaceWidget::accept()
             .arg(d->ui.sizeFactor->value())
             ;
         if (d->ui.uvdir->isChecked()) {
-            // todo
-            argument += QString::fromLatin1(", UVDirs=(FreeCAD.Vector(1,0,0), FreeCAD.Vector(0,1,0))");
+            std::vector<App::Placement*> selection = Gui::Selection().getObjectsOfType<App::Placement>();
+            if (selection.size() != 1) {
+                QMessageBox::warning(this,
+                    tr("Wrong selection"),
+                    tr("Please select a single placement object to get local orientation.")
+                );
+                return false;
+            }
+
+            Base::Rotation rot = selection.front()->GeoFeature::Placement.getValue().getRotation();
+            Base::Vector3d u(1,0,0);
+            Base::Vector3d v(0,1,0);
+            rot.multVec(u, u);
+            rot.multVec(v, v);
+            argument += QString::fromLatin1(", UVDirs=(FreeCAD.Vector(%1,%2,%3), FreeCAD.Vector(%4,%5,%6))")
+                .arg(u.x).arg(u.y).arg(u.z).arg(v.x).arg(v.y).arg(v.z);
         }
         QString command = QString::fromLatin1("%1.addObject(\"Part::Spline\", \"Spline\").Shape = "
             "ReverseEngineering.approxSurface(%2).toShape()")

src/Mod/ReverseEngineering/Gui/FitBSplineSurface.ui

@@ -6,7 +6,7 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>472</width>
+    <width>360</width>
     <height>342</height>
    </rect>
   </property>
@@ -52,7 +52,7 @@
       <item row="1" column="0">
        <widget class="QLabel" name="label_2">
         <property name="text">
-         <string>Number of control points</string>
+         <string>Control points</string>
         </property>
         <property name="alignment">
          <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
@@ -119,7 +119,7 @@
       <item row="1" column="0">
        <widget class="QLabel" name="label_4">
         <property name="text">
-         <string>Number of control points</string>
+         <string>Control points</string>
         </property>
         <property name="alignment">
          <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
@@ -157,7 +157,7 @@
       <item row="0" column="0">
        <widget class="QLabel" name="label_5">
         <property name="text">
-         <string>Maximum number of iterations</string>
+         <string>Iterations</string>
         </property>
         <property name="alignment">
          <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>

src/Mod/ReverseEngineering/Gui/PreCompiled.h

@@ -33,12 +33,14 @@
 # define PartExport __declspec(dllimport)
 # define MeshExport    __declspec(dllimport)
 # define PointsExport __declspec(dllimport)
+# define AppExport __declspec(dllimport)
 #else // for Linux
 # define ReenExport
 # define ReenGuiExport
 # define PartExport
 # define MeshExport
 # define PointsExport
+# define AppExport
 #endif
 
 #ifdef _MSC_VER