- Added utilities for frequency planning

- Changed freq plane to: Fs 4096, int/dec 8X, Mixers 768

utilities/ntext4.m

@@ -0,0 +1,81 @@
+function t=ntext4(x,y,txt,NVargs)
+arguments
+    x (1,1) double
+    y (1,1) double
+    txt string = ""
+end
+arguments
+    NVargs.?matlab.graphics.primitive.Text
+end
+
+varargin = namedargs2cell(NVargs);
+t=text(x,y,txt,varargin{:});
+
+% A variable to distinguish if the User changed the font size or these
+% functions.
+addprop(t,"ResizingText_changingFontSize");
+
+%The original sizes needed for the calculation
+addprop(t,"ResizingText_rFontSize");
+addprop(t,"ResizingText_rFontUnits");
+addprop(t,"ResizingText_origAxisSize");
+
+% A listener to listen for changes in the axes size
+addprop(t,"ResizingText_axisL");
+
+t.ResizingText_changingFontSize = false; % Since we are building it we  
+                                         % aren't yet changing the size
+
+t.CreateFcn = @(S,~) initializeListeners(S);
+initializeListeners(t)
+end
+
+function initializeListeners(t)
+fontSizeListenerCB(t); % Stores values since we aren't change size.
+
+a = t.Parent;
+axisL = listener(a,"SizeChanged", @(~,~) axesListenerCB(t));
+t.ResizingText_axisL=axisL;
+
+addlistener(t,"FontSize","PostSet", @(~,~) fontSizeListenerCB(t));
+addlistener(t,"Parent","PostSet", @(~,~) parentListenerCB(t));
+end
+
+function axesListenerCB(t)
+a = t.Parent;
+axesUnits = a.Units;
+fontUnits = t.FontUnits;
+a.Units = "pixels";
+t.FontUnits = t.ResizingText_rFontUnits;
+rFontSize = t.ResizingText_rFontSize;
+axSize = t.ResizingText_origAxisSize;
+curhsize = axSize(3);
+curvsize = axSize(4);
+t.ResizingText_changingFontSize=true;
+t.FontSize = min(rFontSize*a.Position(3)/curhsize,rFontSize*a.Position(4)/curvsize);
+t.ResizingText_changingFontSize=false;
+t.FontUnits = fontUnits;
+a.Units = axesUnits;
+end
+
+function fontSizeListenerCB(t)
+if ~t.ResizingText_changingFontSize
+    t.ResizingText_rFontSize = t.FontSize;
+    t.ResizingText_rFontUnits = t.FontUnits;
+    if ~isempty(t.Parent)
+        a = t.Parent;
+        aUnits = a.Units;
+        a.Units = "pixels";
+        t.ResizingText_origAxisSize = t.Parent.Position;
+        a.Units = aUnits;
+    end
+end
+end
+
+function parentListenerCB(t)
+a = t.Parent;
+aUnits = a.Units;
+a.Units = "pixels";
+t.ResizingText_origAxisSize = t.Parent.Position;
+a.Units = aUnits;
+end