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Annotation of researchv10no/libplot/lib4014/frame.c, revision 1.1.1.1

1.1       root        1: #include <stdio.h>
                      2: #include "tek.h"
                      3: frame(xs, ys, xf, yf)
                      4: double xs, ys, xf, yf;
                      5: {
                      6:        register double osidex, osidey;
                      7:        osidex = e1->sidex;
                      8:        osidey = e1->sidey;
                      9:        e1->left = xs * (e0->left + e0->sidex);
                     10:        e1->bottom = ys* (e0->bottom +  e0->sidey);
                     11:        e1->sidex = (xf-xs) * e0->sidex;
                     12:        e1->sidey = (yf-ys) * e0->sidey;
                     13:        e1->scalex *= (e1->sidex / osidex);
                     14:        e1->scaley *= (e1->sidey / osidey);
                     15:        e1->quantum=e0->quantum/sqrt(e1->scalex*e1->scalex +
                     16:                e1->scaley*e1->scaley);
                     17:        if(e1->quantum < .01)
                     18:                e1->quantum = .01;
                     19: }

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