// // 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 // 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 #include #include #include #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 1; // 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 1; // 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 1; // 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 1; if ( !( cdText( im, 20, 100, "Goodbye World" ) ) ) return 1; // now write the file out. outf = fopen( "cdmulti.cgm", "wb" ); if ( !outf ) return 1; 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 0; }