Framework: fix issue

framework/cybertron/tools/cvt/visualizer/pointcloud.cpp

@@ -27,8 +27,8 @@ PointCloud::PointCloud(int pointCount, int vertexElementCount,
 
 PointCloud::~PointCloud(void) {
   if (buffer_) {
-    delete buffer_;
-    buffer_ = 0;
+    delete [] buffer_;
+    buffer_ = nullptr;
   }
 }
 

framework/cybertron/tools/cvt/vtopology/interactive_graphicsview.cpp

@@ -46,7 +46,7 @@ void InteractiveGraphicsView::init(void) {
   setCursor(Qt::PointingHandCursor);
   setRenderHint(QPainter::Antialiasing);
 
-  setSceneRect(-INT_MIN / 2, -INT_MIN / 2, INT_MAX, INT_MAX);
+  setSceneRect(INT_MIN, INT_MIN, INT_MAX, INT_MAX);
   centerOn(0, 0);
 }