int SplotClip(struct Splot *ptr,
int num,float *px,float *py,int *t) {
int s=0;
if (ptr==NULL) return -1;
if (ptr->ps.ptr !=NULL) {
struct PostScript *ps;
ps=ptr->ps.ptr;
if (ptr->ps.clip !=NULL) PostScriptFreeClip(ptr->ps.clip);
ptr->ps.clip=NULL;
if (num==0) return 0;
ptr->ps.clip=PostScriptMakeClip(ps->x,ps->y,ps->wdt,ps->hgt,num,px,py,t);
if (ptr->ps.clip==NULL) s=-1;
}
if (ptr->fb.ptr !=NULL) {
int *ix=NULL,*iy=NULL;
int i;
struct FrameBuffer *img;
img=*(ptr->fb.ptr);
if (img==NULL) return -1;
if (ptr->fb.clip !=NULL) FrameBufferFreeClip(ptr->fb.clip);
ptr->fb.clip=NULL;
if (num==0) return 0;
ix=malloc(sizeof(int)*num);
if (ix==NULL) return -1;
iy=malloc(sizeof(int)*num);
if (iy==NULL) {
free(ix);
return -1;
}
for (i=0;i<num;i++) {
ix[i]=px[i];
iy[i]=py[i];
}
ptr->fb.clip=FrameBufferMakeClip(img->wdt,img->hgt,num,ix,iy,t);
if (ptr->fb.clip==NULL) s=-1;
free(ix);
free(iy);
}
return s;
}
struct FrameBufferClip *fbclip(int wdt,int hgt) {
int i;
float sf=0.55;
int px[12];
int py[12];
int t[12];
px[0]=0.5*wdt;
py[0]=0;
px[1]=0.5*wdt;
py[1]=0.5*hgt*sf;
px[2]=0.5*wdt*sf;
py[2]=0.5*hgt;
px[3]=0;
py[3]=0.5*hgt;
px[4]=-0.5*wdt*sf;
py[4]=0.5*hgt;
px[5]=-0.5*wdt;
py[5]=0.5*hgt*sf;
px[6]=-0.5*wdt;
py[6]=0;
px[7]=-0.5*wdt;
py[7]=-0.5*hgt*sf;
px[8]=-0.5*wdt*sf;
py[8]=-0.5*hgt;
px[9]=0;
py[9]=-0.5*hgt;
px[10]=0.5*wdt*sf;
py[10]=-0.5*hgt;
px[11]=0.5*wdt;
py[11]=-0.5*hgt*sf;
for (i=0;i<12;i++) {
t[i]=1;
px[i]+=0.5*wdt;
py[i]+=0.5*hgt;
}
return FrameBufferMakeClip(wdt,hgt,12,px,py,t);
}
