Actual source code: ex2.c
2: static char help[] = "Demonstrates us of color map\n";
4: #include petscsys.h
8: int main(int argc,char **argv)
9: {
10: PetscDraw draw;
12: int x = 0,y = 0,width = 256,height = 256,i;
14: PetscInitialize(&argc,&argv,(char*)0,help);
16: /* PetscDrawOpenX(PETSC_COMM_SELF,0,"Title",x,y,width,height,&draw);*/
17: PetscDrawCreate(PETSC_COMM_SELF,0,"Title",x,y,width,height,&draw);
18: PetscDrawSetFromOptions(draw);
19: for (i=0; i<256; i++) {
20: PetscDrawLine(draw,0.0,((PetscReal)i)/256.,1.0,((PetscReal)i)/256.,i);
21: }
22: PetscDrawFlush(draw);
23: PetscSleep(2);
24: PetscDrawDestroy(draw);
25: PetscFinalize();
26: return 0;
27: }
28: