How can I make a function to input a polygon name and have the function plot the polygon?

I am trying to create a code that will be able to plot a polygon by imputing the name. For example: PlotThePolygon(Triangle) . Any help is appreciated!

Answer 1

[Walter Roberson]

function gonname = Triangle
  gonname = 'Triangle';
function gonname = Square
  gonname = 'Square';
function gonname = Pentagon
  gonname = 'Pentagon';

function PlotThePolygon(gonname)
  switch(gonname)
    case 'Triangle'
       ...   %appropriate plotting here
    case 'Square'
       ...   %appropriate plotting here
    case 'Pentagon'
       ...   %appropriate plotting here
    otherwise
       fprintf('I do not know how to plot something named a "%s"\n', gonname);
  end

The first functions exist solely for the purpose of allowing the user to omit the quotation marks around what needs to be a string, since PlotThePolygon(Triangle) is asking PlotThePolygon to work upon the result of executing a function named "Triangle" and what it really needs is to be called like PlotThePolygon('Triangle')