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rINSTCONTROL/@MyTrace/MyTrace.m
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MyTrace.m
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classdef MyTrace < handle
properties
x=[];
y=[];
name='placeholder';
Color='b';
Marker='.';
LineStyle='-'
MarkerSize=6;
Parser;
name_x='x';
name_y='y';
unit_x='';
unit_y='';
save_dir='';
load_path='';
end
properties (Dependent=true)
label_x;
label_y;
end
methods
function this=MyTrace(varargin)
createParser(this);
parse(this.Parser,varargin{:});
parseInputs(this,true);
if ~ismember('load_path',this.Parser.UsingDefaults)
loadTrace(this,this.load_path);
end
end
%Creates the input parser for the class. Includes default values
%for all optional parameters.
function createParser(this)
p=inputParser;
addParameter(p,'name','placeholder');
addParameter(p,'x',[]);
addParameter(p,'y',[]);
addParameter(p,'Color','b');
addParameter(p,'Marker','none');
addParameter(p,'LineStyle','-');
addParameter(p,'MarkerSize',6);
addParameter(p,'unit_x','x');
addParameter(p,'unit_y','y');
addParameter(p,'name_x','x');
addParameter(p,'name_y','y');
%Default save folder is the current directory upon
%instantiation
addParameter(p,'save_dir',pwd);
addParameter(p,'load_path','');
this.Parser=p;
end
%Defines the save function for the class. Saves the data with
%column headers as label_x and label_y
function save(this,varargin)
%Allows all options of the class as inputs for the save
%function, to change the name or save directory.
parse(this.Parser,varargin{:});
parseInputs(this,false);
%Creates save directory if it does not exist
if ~exist(this.save_dir,'dir')
mkdir(this.save_dir)
end
%Creates a file name out of the name of the class and the save
%directory
filename=[this.save_dir,'\',this.name,'.txt'];
%Creates the file
fileID=fopen(filename,'w');
%Finds appropriate column width
cw=max([length(this.label_y),length(this.label_x)]);
%Makes a format string with the correct column width. %% makes
%a % symbol in sprintf, thus if cw=14, below is %14s\t%14s\r\n.
%\r\n prints a carriage return, ensuring linebreak in NotePad.
fprintf(fileID,sprintf('%%%ds\t%%%ds\r\n',cw,cw),...
this.label_x, this.label_y);
%Saves in scientific notation with correct column width defined
%above. Again if cw=14, we get %14.3e\t%14.3e\r\n
fprintf(fileID,sprintf('%%%d.3e\t%%%d.3e\r\n',cw,cw),...
[this.x; this.y]);
fclose(fileID);
end
function loadTrace(this, file_path)
if ~exist(this.load_path,'file')
error('File does not exist, please choose a different load path')
end
load_data=tdfread(file_path);
this.load_path=file_path;
data_labels=fieldnames(load_data);
%Code for left bracket
ind_start=strfind(data_labels, '0x28');
%Code for right bracket
ind_stop=strfind(data_labels, '0x29');
col_name={'x','y'};
for i=1:2
if ~isempty(ind_start) && ~isempty(ind_stop)
%Extracts the data labels from the file
this.(sprintf('unit_%s',col_name{i}))=...
data_labels{i}((ind_start{i}+4):(ind_stop{i}-1));
this.(sprintf('name_%s',col_name{i}))=...
data_labels{i}(1:(ind_start{i}-2));
end
%Loads the data into the trace
this.(col_name{i})=load_data.(data_labels{i});
end
end
%Sets the class variables to the inputs from the inputParser. Can
%be used to reset class to default values if default_flag=true.
function parseInputs(this, default_flag)
for i=1:length(this.Parser.Parameters)
%Sets the value if there was an input or if the default
%flag is on. The default flag is used to reset the class to
%its default values.
if default_flag || ~any(ismember(this.Parser.Parameters{i},...
this.Parser.UsingDefaults))
this.(this.Parser.Parameters{i})=...
this.Parser.Results.(this.Parser.Parameters{i});
end
end
end
%Plots the trace on the given axes, using the class variables to
%define colors, markers, lines and labels. Takes all optional
%parameters of the class as inputs.
function plotTrace(this,plot_axes,varargin)
assert(exist('plot_axes','var') && ...
isa(plot_axes,'matlab.graphics.axis.Axes'),...
'Please input axes to plot in.')
assert(isequal(size(this.x), size(this.y)) || ...
(isvector(this.x) && isvector(this.y) && ...
numel(this.x) == numel(this.y)),...
'The length of x and y must be identical to make a plot')
parse(this.Parser,varargin{:})
parseInputs(this,false);
plot(plot_axes,this.x,this.y,'Color',this.Color,'LineStyle',...
this.LineStyle,'Marker',this.Marker,...
'MarkerSize',this.MarkerSize)
xlabel(plot_axes,this.label_x,'Interpreter','LaTeX');
ylabel(plot_axes,this.label_y,'Interpreter','LaTeX');
set(plot_axes,'TickLabelInterpreter','LaTeX');
end
%Set function for Color. Checks if it is a valid color.
function set.Color(this, Color)
assert(iscolor(Color),...
'%s is not a valid MATLAB default color or RGB triplet',...
Color);
this.Color=Color;
end
%Set function for Marker. Checks if it is a valid
%marker style.
function set.Marker(this, Marker)
assert(ismarker(Marker),...
'%s is not a valid MATLAB MarkerStyle',Marker);
this.Marker=Marker;
end
%Set function for x, checks if it is a vector of doubles.
function set.x(this, x)
assert(isnumeric(x),...
'Data must be of class double');
this.x=x;
end
%Set function for y, checks if it is a vector of doubles.
function set.y(this, y)
assert(isnumeric(y),...
'Data must be of class double');
this.y=y;
end
%Set function for LineStyle, checks if input is a valid line style.
function set.LineStyle(this, LineStyle)
assert(isline(LineStyle),...
'%s is not a valid MATLAB LineStyle',LineStyle);
this.LineStyle=LineStyle;
end
%Set function for MarkerSize, checks if input is a positive number.
function set.MarkerSize(this, MarkerSize)
assert(isnumeric(MarkerSize) && MarkerSize>0,...
'MarkerSize must be a numeric value greater than zero');
this.MarkerSize=MarkerSize;
end
%Set function for name, checks if input is a string.
function set.name(this, name)
assert(ischar(name),'Name must be a string, not a %s',...
class(name));
this.name=name;
end
%Set function for unit_x, checks if input is a string.
function set.unit_x(this, unit_x)
assert(ischar(unit_x),'Unit must be a string, not a %s',...
class(unit_x));
this.unit_x=unit_x;
end
%Set function for unit_y, checks if input is a string
function set.unit_y(this, unit_y)
assert(ischar(unit_y),'Unit must be a string, not a %s',...
class(unit_y));
this.unit_y=unit_y;
end
%Set function for name_x, checks if input is a string
function set.name_x(this, name_x)
assert(ischar(name_x),'Name must be a string, not a %s',...
class(name_x));
this.name_x=name_x;
end
%Set function for name_y, checks if input is a string
function set.name_y(this, name_y)
assert(ischar(name_y),'Name must be a string, not a %s',...
class(name_y));
this.name_y=name_y;
end
function set.load_path(this, load_path)
assert(ischar(load_path),'File path must be a string, not a %s',...
class(load_path));
this.load_path=load_path;
end
%Get function for label_x, creates label from name_x and unit_x.
function label_x=get.label_x(this)
label_x=sprintf('%s (%s)', this.name_x, this.unit_x);
end
%Get function for label_y, creates label from name_y and unit_y.
function label_y=get.label_y(this)
label_y=sprintf('%s (%s)', this.name_y, this.unit_y);
end
function sum=plus(a,b)
checkArithmetic(a,b);
sum=MyTrace('x',a.x,'y',a.y+b.y,'unit_x',a.unit_x,...
'unit_y',a.unit_y,'name_x',a.name_x,'name_y',a.name_y);
end
function sum=minus(a,b)
checkArithmetic(a,b);
sum=MyTrace('x',a.x,'y',a.y-b.y,'unit_x',a.unit_x,...
'unit_y',a.unit_y,'name_x',a.name_x,'name_y',a.name_y);
end
function checkArithmetic(a,b)
assert(isa(a,'MyTrace') && isa(b,'MyTrace'),...
['Both objects must be of type MyTrace to add,',...
'here they are type %s and %s'],class(a),class(b));
assert(strcmp(a.unit_x, b.unit_x) && strcmp(a.unit_y,b.unit_y),...
'The MyTrace classes must have the same units for arithmetic');
assert(length(a.x)==length(a.y) && length(a.x)==length(a.y),...
'The length of x and y must be equal for arithmetic');
assert(all(a.x==b.x),...
'The MyTrace objects must have identical x-axis for arithmetic')
end
end
end
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