📄 gdc_samp1.c
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/* GDCHART 0.94b 1st CHART SAMPLE 12 Nov 1998 *//* writes gif file to stdout *//* sample gdchart usage *//* this will produce a 3D BAR chart *//* this is suitable for use as a CGI *//* for CGI use un-comment the "Content-Type" line */#include <stdio.h> #include "gdc.h"#include "gdchart.h" main(){ /* ----- set some data ----- */ float a[6] = { 0.5, 0.09, 0.6, 0.85, 0.0, 0.90 }, b[6] = { 1.9, 1.3, 0.6, 0.75, 0.1, 2.0 }; /* ----- X labels ----- */ char *t[6] = { "Chicago", "New York", "L.A.", "Atlanta", "Paris, MD\n(USA) ", "London" }; /* ----- data set colors (RGB) ----- */ unsigned long sc[2] = { 0xFF8080, 0x8080FF }; GDC_BGColor = 0xFFFFFFL; /* backgound color (white) */ GDC_LineColor = 0x000000L; /* line color (black) */ GDC_SetColor = &(sc[0]); /* assign set colors */ GDC_stack_type = GDC_STACK_BESIDE;// printf( "Content-Type: image/gif\n\n" ); /* tell browser type */ /* ----- call the lib ----- */ out_graph( 250, 200, /* short width, height */ stdout, /* FILE* open FILE pointer */ GDC_3DBAR, /* GDC_CHART_T chart type */ 6, /* int number of points per data set */ t, /* char*[] array of X labels */ 2, /* int number of data sets */ a, /* float[] data set 1 */ b ); /* ... data set n */ exit(0);}
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