1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
/*
* cdmulti is a program to make a cgm file with multiple pictures in it.
*
cdmulti.c: test program for the cgmdraw module.
Written by G. Edward Johnson <mailto:lorax@nist.gov>
Date: June 26, 1996
Copyright: cd software produced by NIST, an agency of the
U.S. government, is by statute not subject to copyright
in the United States. Recipients of this software assume all
responsibilities associated with its operation, modification
and maintenance.
*/
#include <malloc.h>
#include <stdio.h>
#include <math.h>
#include <string.h>
#include <stdlib.h>
#include "defines.h"
#include "cd.h"
int main () {
/* you must create a pointer to the image(s) that you will be using
* not suprisingly, it is of type cdImagePtr */
cdImagePtr im;
/* this is a pointer to the output file you will be using */
FILE *outf;
/* these will be index's into the color palette containing
* the corresponding colors */
int black, white, blue;
/* Create an image 200 pixels wide by 250 pixels high */
im = cdImageCreate(200, 250);
/* allocate some colors (isn't this fun?) */
/* the first color allocated is the background color */
white = cdImageColorAllocate (im, 255,255,255);
black = cdImageColorAllocate(im, 0, 0, 0);
blue = cdImageColorAllocate(im, 0, 0, 255);
/* set the text attributes */
/* font, colorindex, and size respectivily */
/* font is the style the text is written in. 1 is for Times,
* 5 is for Helvetica. */
/* we will have black text for this one */
/* Size is a tough one, but larger numbers give larger text.
* 25 is a not too large size */
if (!(cdSetTextAttrib(im, 5, black, 25))) return 0;
/* Now that we have set some attributes, lets do some drawing */
/* lets put some text in the picture. */
/* (20,100) is the point at the lower left corner of the text */
if (!(cdText(im, 20, 100, "Hello World"))) return 0;
/* Here's something special, put a second picture in the file */
/* we put in a second picture, and reset all defaults. This means
* we have to re-allocate the colors as well */
if (!(cdCgmNewPic(im, 0))) return 0;
/* allocate some colors (Again!) */
/* the first color allocated is the background color */
white = cdImageColorAllocate (im, 255,255,255);
black = cdImageColorAllocate(im, 0, 0, 0);
blue = cdImageColorAllocate(im, 0, 0, 255);
/* set text attributes */
if (!(cdSetTextAttrib(im, 5, black, 25))) return 0;
if (!(cdText(im, 20, 100, "Goodbye World"))) return 0;
/* now write the file out. */
outf = fopen("cdmulti.cgm", "wb");
if (!outf) return 0;
cdImageCgm(im, outf);
fclose(outf);
outf = 0;
/* Remember to destroy the image when you are done */
cdImageDestroy(im);
im = 0;
printf("I just created a multi picture CGM!!!\n");
return 1;
}
|
