1*c4762a1bSJed Brown 2*c4762a1bSJed Brown static char help[] = "Demonstrates use of PetscDrawZoom()\n"; 3*c4762a1bSJed Brown 4*c4762a1bSJed Brown #if defined(PETSC_APPLE_FRAMEWORK) 5*c4762a1bSJed Brown 6*c4762a1bSJed Brown #include <PETSc/petscsys.h> 7*c4762a1bSJed Brown #include <PETSc/petscdraw.h> 8*c4762a1bSJed Brown #else 9*c4762a1bSJed Brown #include <petscsys.h> 10*c4762a1bSJed Brown #include <petscdraw.h> 11*c4762a1bSJed Brown #endif 12*c4762a1bSJed Brown 13*c4762a1bSJed Brown PetscErrorCode zoomfunction(PetscDraw draw,void *dummy) 14*c4762a1bSJed Brown { 15*c4762a1bSJed Brown int i; 16*c4762a1bSJed Brown MPI_Comm comm = PetscObjectComm((PetscObject)draw); 17*c4762a1bSJed Brown PetscMPIInt size,rank; 18*c4762a1bSJed Brown PetscErrorCode ierr; 19*c4762a1bSJed Brown 20*c4762a1bSJed Brown ierr = MPI_Comm_size(comm,&size);CHKERRQ(ierr); 21*c4762a1bSJed Brown ierr = MPI_Comm_rank(comm,&rank);CHKERRQ(ierr); 22*c4762a1bSJed Brown for (i=rank; i<256; i+=size) { 23*c4762a1bSJed Brown PetscReal y = ((PetscReal)i)/(256-1); 24*c4762a1bSJed Brown ierr = PetscDrawLine(draw,0.0,y,1.0,y,i);CHKERRQ(ierr); 25*c4762a1bSJed Brown } 26*c4762a1bSJed Brown return 0; 27*c4762a1bSJed Brown } 28*c4762a1bSJed Brown 29*c4762a1bSJed Brown int main(int argc,char **argv) 30*c4762a1bSJed Brown { 31*c4762a1bSJed Brown int x = 0,y = 0,width = 256,height = 256; 32*c4762a1bSJed Brown PetscDraw draw; 33*c4762a1bSJed Brown PetscErrorCode ierr; 34*c4762a1bSJed Brown 35*c4762a1bSJed Brown ierr = PetscInitialize(&argc,&argv,NULL,help);if (ierr) return ierr; 36*c4762a1bSJed Brown ierr = PetscDrawCreate(PETSC_COMM_WORLD,NULL,"Title",x,y,width,height,&draw);CHKERRQ(ierr); 37*c4762a1bSJed Brown ierr = PetscDrawSetFromOptions(draw);CHKERRQ(ierr); 38*c4762a1bSJed Brown ierr = PetscDrawZoom(draw,zoomfunction,NULL);CHKERRQ(ierr); 39*c4762a1bSJed Brown ierr = PetscDrawDestroy(&draw);CHKERRQ(ierr); 40*c4762a1bSJed Brown ierr = PetscFinalize(); 41*c4762a1bSJed Brown return ierr; 42*c4762a1bSJed Brown } 43*c4762a1bSJed Brown 44*c4762a1bSJed Brown 45*c4762a1bSJed Brown 46*c4762a1bSJed Brown 47*c4762a1bSJed Brown /*TEST 48*c4762a1bSJed Brown 49*c4762a1bSJed Brown build: 50*c4762a1bSJed Brown requires: x 51*c4762a1bSJed Brown 52*c4762a1bSJed Brown test: 53*c4762a1bSJed Brown output_file: output/ex1_1.out 54*c4762a1bSJed Brown 55*c4762a1bSJed Brown test: 56*c4762a1bSJed Brown suffix: db 57*c4762a1bSJed Brown args: -draw_double_buffer 0 58*c4762a1bSJed Brown output_file: output/ex1_1.out 59*c4762a1bSJed Brown 60*c4762a1bSJed Brown test: 61*c4762a1bSJed Brown suffix: df 62*c4762a1bSJed Brown args: -draw_fast 63*c4762a1bSJed Brown output_file: output/ex1_1.out 64*c4762a1bSJed Brown 65*c4762a1bSJed Brown test: 66*c4762a1bSJed Brown suffix: dv 67*c4762a1bSJed Brown args: -draw_virtual 68*c4762a1bSJed Brown output_file: output/ex1_1.out 69*c4762a1bSJed Brown 70*c4762a1bSJed Brown TEST*/ 71