feat(meshView): simple mesh view utility added

utils/meshView/meshView.cpp

@@ -0,0 +1,28 @@
+#include "mfem.hpp"
+#include <string>
+#include <iostream>
+#include <cmath>
+
+#include "probe.h"
+#include "meshIO.h"
+#include "config.h"
+
+int main(int argv, char **argc) {
+    std::string CONFIG_FILENAME = std::string(getenv("MESON_SOURCE_ROOT")) + "/tests/testsConfig.yaml";
+    Config& config = Config::getInstance();
+    config.loadConfig(CONFIG_FILENAME);
+    // Read the mesh from the given mesh file
+    std::string meshFile = argc[1];
+    MeshIO meshIO(meshFile);
+    mfem::Mesh& mesh = meshIO.GetMesh();
+    mfem::H1_FECollection feCollection(1, mesh.SpaceDimension());
+    mfem::FiniteElementSpace feSpace(&mesh, &feCollection);
+    mfem::GridFunction u(&feSpace);
+    mfem::FunctionCoefficient initCoeff (
+        [&mesh](const mfem::Vector &x) {
+            return 1.0;
+        }
+    );
+    u.ProjectCoefficient(initCoeff);
+    Probe::glVisView(u, mesh, meshFile);
+}