Programming and Graphics

222 Introduction to C++ Programming and Graphics

Figure 7.4.1 Graphics display of codeplot2dsimpleshowing a line with markers

at the data points.

Function draw2daxes

Drawing and formatting axes is done through a sequence of operations
for defining and plotting ticks and underlying labels, as implemented in the
functiondraw2daxes.cc:

/*----------------------

draw2daxes.cc

Draw axes,

Label axes,

Put labels on the plot

----------------------- */

#include <iostream>

#include <iomanip>

#include <fstream>

#include "VOGLE/voglec++.h"

using namespace std;

void drawaxes2d (float xmin, float xmax // x plotting limits

,float ymin, float ymax // y plotting limits

,int ntcx // number of ticks on the x axis

,int ntcy // number of ticks on the y axis

,int Ilabelax // 1 to label axes; 0 for no labels

,int axc // axis color

,int lbc // label color

,char labelx[] // x-axis label