Updated cloud io functionality - removed dependency from VTK legacy

modules/viz/src/vtk/vtkXYZWriter.cpp

@@ -61,10 +61,22 @@ void cv::viz::vtkXYZWriter::WriteData()
     if (!input)
         return;
 
-    // OpenVTKFile() will report any errors that happen
-    ostream *outfilep = this->OpenVTKFile();
-    if (!outfilep)
+    if (!this->FileName )
+    {
+        vtkErrorMacro(<< "No FileName specified! Can't write!");
+        this->SetErrorCode(vtkErrorCode::NoFileNameError);
         return;
+    }
+
+    vtkDebugMacro(<<"Opening vtk file for writing...");
+    ostream *outfilep = new ofstream(this->FileName, ios::out);
+    if (outfilep->fail())
+    {
+        vtkErrorMacro(<< "Unable to open file: "<< this->FileName);
+        this->SetErrorCode(vtkErrorCode::CannotOpenFileError);
+        delete outfilep;
+        return;
+    }
 
     ostream &outfile = *outfilep;
 
@@ -76,7 +88,8 @@ void cv::viz::vtkXYZWriter::WriteData()
     }
 
     // Close the file
-    this->CloseVTKFile(outfilep);
+    vtkDebugMacro(<<"Closing vtk file\n");
+    delete outfilep;
 
     // Delete the file if an error occurred
     if (this->ErrorCode == vtkErrorCode::OutOfDiskSpaceError)
@@ -86,8 +99,24 @@ void cv::viz::vtkXYZWriter::WriteData()
     }
 }
 
+int cv::viz::vtkXYZWriter::FillInputPortInformation(int, vtkInformation *info)
+{
+    info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkPolyData");
+    return 1;
+}
+
 void cv::viz::vtkXYZWriter::PrintSelf(ostream& os, vtkIndent indent)
 {
     this->Superclass::PrintSelf(os,indent);
     os << indent << "DecimalPrecision: " << this->DecimalPrecision << "\n";
 }
+
+vtkPolyData* cv::viz::vtkXYZWriter::GetInput()
+{
+    return vtkPolyData::SafeDownCast(this->Superclass::GetInput());
+}
+
+vtkPolyData* cv::viz::vtkXYZWriter::GetInput(int port)
+{
+    return vtkPolyData::SafeDownCast(this->Superclass::GetInput(port));
+}