//NTU: Sliders for opacity and radio change
wxStaticText* txOpacity = new wxStaticText(this, -1, wxString(_T(" Points Opacity ")));
sdrOpacity = new wxSlider(this, -1, 0, 0, 100, wxDefaultPosition, wxDefaultSize, wxSL_LABELS);
//NTU: Sliders for opacity and radio change
wxStaticText* txOpacity = new wxStaticText(this, -1, wxString(_T(" Points Opacity ")));
sdrOpacity = new wxSlider(this, -1, 0, 0, 100, wxDefaultPosition, wxDefaultSize, wxSL_LABELS);