// Simple demo of a 2D line plot. // // Copyright (C) 2011 Alan W. Irwin // // This file is part of PLplot. // // PLplot is free software; you can redistribute it and/or modify // it under the terms of the GNU Library General Public License as published // by the Free Software Foundation; either version 2 of the License, or // (at your option) any later version. // // PLplot is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU Library General Public License for more details. // // You should have received a copy of the GNU Library General Public License // along with PLplot; if not, write to the Free Software // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA // // #include "plcdemos.h" #define NSIZE 101 int main( int argc, const char *argv[] ) { PLFLT x[NSIZE], y[NSIZE]; PLFLT xmin = 0., xmax = 1., ymin = 0., ymax = 100.; int i; // Prepare data to be plotted. for ( i = 0; i < NSIZE; i++ ) { x[i] = (PLFLT) ( i ) / (PLFLT) ( NSIZE - 1 ); y[i] = ymax * x[i] * x[i]; } // Parse and process command line arguments plparseopts( &argc, argv, PL_PARSE_FULL ); // Initialize plplot plinit(); // Create a labelled box to hold the plot. plenv( xmin, xmax, ymin, ymax, 0, 0 ); pllab( "x", "y=100 x#u2#d", "Simple PLplot demo of a 2D line plot" ); // Plot the data that was prepared above. plline( NSIZE, x, y ); // Close PLplot library plend(); exit( 0 ); }