mjhjmtu

I am kinda new to LaTeX. I wanted to implement a Gantt chart that corresponds to years 2012 - 2019.

I looked for references at this code that uses tikz, manage to configure it pretty much as I needed, but couldn't change the "months" (1,2,3..15) to the years I needed.

Snippet:

documentclassarticle
usepackage[a4paper,landscape,margin=3cm]geometry
usepackagetikz
usetikzlibrarycalc

% GanttHeader setups some parameters for the rest of the diagram
% #1 Width of the diagram
% #2 Width of the space reserved for task numbers
% #3 Width of the space reserved for task names
% #4 Number of months in the diagram
% In addition to these parameters, the layout of the diagram is influenced
% by keys defined below, such as y, which changes the vertical scale
defGanttHeader#1#2#3#4%
 pgfmathparse(#1-#2-#3)/#4
 tikzsety=7mm, task number/.style=left, font=bfseries,
 task description/.style=text width=#3, right, draw=none,
 font=sffamily, xshift=#2,
 minimum height=2em,
 gantt bar/.style=draw=black, fill=blue!30,
 help lines/.style=draw=black!30, dashed,
 x=pgfmathresult pt
 
 deftotalmonths#4
 node (Header) [task description] at (0,0) textbflarge Task Description;
 beginscope[shift=($(Header.south east)$)]
 foreach x in 1,...,#4
 node[above] at (x,0) footnotesizex;
 endscope


% This macro adds a task to the diagram
% #1 Number of the task
% #2 Task's name
% #3 Starting date of the task (month's number, can be non-integer)
% #4 Task's duration in months (can be non-integer)
defTask#1#2#3#4%
node[task number] at ($(Header.west) + (0, -#1)$) #1;
node[task description] at (0,-#1) #2;
beginscope[shift=($(Header.south east)$)]
 draw (0,-#1) rectangle +(totalmonths, 1);
 foreach x in 1,...,totalmonths
 draw[help lines] (x,-#1) -- +(0,1);
 filldraw[gantt bar] ($(#3, -#1+0.2)$) rectangle +(#4,0.6);
endscope


% Example
begindocument
thispagestyleempty
begintikzpicture
 GanttHeader.8textwidth2ex4cm15
 Task1Requirement analysis03
 Task2Devise an abstract0.51
 Task3Develop interfaces33
 Task4Adapt existing4.53
 Task5Implement and evaluate54.5
 Task6Specify Phase II design83
 Task7Prepare final report111
endtikzpicture
enddocument

I agree with Alan Munn that you will be much better off if you use pgfgantt. Just in case we can't convince you, you may try

documentclassarticle
usepackage[a4paper,landscape,margin=3cm]geometry
usepackagetikz
usetikzlibrarycalc

% GanttHeader setups some parameters for the rest of the diagram
% #1 Width of the diagram
% #2 Width of the space reserved for task numbers
% #3 Width of the space reserved for task names
% #4 Number of months in the diagram
% #5 Start year
% In addition to these parameters, the layout of the diagram is influenced
% by keys defined below, such as y, which changes the vertical scale
defGanttHeader#1#2#3#4#5%
 pgfmathparse(#1-#2-#3)/#4
 tikzsety=7mm, task number/.style=left, font=bfseries,
 task description/.style=text width=#3, right, draw=none,
 font=sffamily, xshift=#2,
 minimum height=2em,
 gantt bar/.style=draw=black, fill=blue!30,
 help lines/.style=draw=black!30, dashed,
 x=pgfmathresult pt
 
 deftotalmonths#4
 node (Header) [task description] at (0,0) textbflarge Task Description;
 beginscope[shift=($(Header.south east)$)]
 foreach x in 1,...,#4
 node[above] at (x,0) pgfmathparseint(x+#5)footnotesizepgfmathresult;
 endscope


% This macro adds a task to the diagram
% #1 Number of the task
% #2 Task's name
% #3 Starting date of the task (month's number, can be non-integer)
% #4 Task's duration in months (can be non-integer)
defTask#1#2#3#4%
node[task number] at ($(Header.west) + (0, -#1)$) #1;
node[task description] at (0,-#1) #2;
beginscope[shift=($(Header.south east)$)]
 draw (0,-#1) rectangle +(totalmonths, 1);
 foreach x in 1,...,totalmonths
 draw[help lines] (x,-#1) -- +(0,1);
 filldraw[gantt bar] ($(#3, -#1+0.2)$) rectangle +(#4,0.6);
endscope


% Example
begindocument
thispagestyleempty
begintikzpicture
 GanttHeader.8textwidth2ex4cm152003
 Task1Requirement analysis03
 Task2Devise an abstract0.51
 Task3Develop interfaces33
 Task4Adapt existing4.53
 Task5Implement and evaluate54.5
 Task6Specify Phase II design83
 Task7Prepare final report111
endtikzpicture
enddocument