1c4762a1bSJed Brown 2c4762a1bSJed Brown static char help[] = "Demonstrates use of PetscDrawZoom()\n"; 3c4762a1bSJed Brown 4c4762a1bSJed Brown #if defined(PETSC_APPLE_FRAMEWORK) 5c4762a1bSJed Brown 6c4762a1bSJed Brown #include <PETSc/petscsys.h> 7c4762a1bSJed Brown #include <PETSc/petscdraw.h> 8c4762a1bSJed Brown #else 9c4762a1bSJed Brown #include <petscsys.h> 10c4762a1bSJed Brown #include <petscdraw.h> 11c4762a1bSJed Brown #endif 12c4762a1bSJed Brown 13c4762a1bSJed Brown PetscErrorCode zoomfunction(PetscDraw draw,void *dummy) 14c4762a1bSJed Brown { 15c4762a1bSJed Brown int i; 16c4762a1bSJed Brown MPI_Comm comm = PetscObjectComm((PetscObject)draw); 17c4762a1bSJed Brown PetscMPIInt size,rank; 18c4762a1bSJed Brown 195f80ce2aSJacob Faibussowitsch CHKERRMPI(MPI_Comm_size(comm,&size)); 205f80ce2aSJacob Faibussowitsch CHKERRMPI(MPI_Comm_rank(comm,&rank)); 21c4762a1bSJed Brown for (i=rank; i<256; i+=size) { 22c4762a1bSJed Brown PetscReal y = ((PetscReal)i)/(256-1); 235f80ce2aSJacob Faibussowitsch CHKERRQ(PetscDrawLine(draw,0.0,y,1.0,y,i)); 24c4762a1bSJed Brown } 25c4762a1bSJed Brown return 0; 26c4762a1bSJed Brown } 27c4762a1bSJed Brown 28c4762a1bSJed Brown int main(int argc,char **argv) 29c4762a1bSJed Brown { 30c4762a1bSJed Brown int x = 0,y = 0,width = 256,height = 256; 31c4762a1bSJed Brown PetscDraw draw; 32c4762a1bSJed Brown 33*b122ec5aSJacob Faibussowitsch CHKERRQ(PetscInitialize(&argc,&argv,NULL,help)); 345f80ce2aSJacob Faibussowitsch CHKERRQ(PetscDrawCreate(PETSC_COMM_WORLD,NULL,"Title",x,y,width,height,&draw)); 355f80ce2aSJacob Faibussowitsch CHKERRQ(PetscDrawSetFromOptions(draw)); 365f80ce2aSJacob Faibussowitsch CHKERRQ(PetscDrawZoom(draw,zoomfunction,NULL)); 375f80ce2aSJacob Faibussowitsch CHKERRQ(PetscDrawDestroy(&draw)); 38*b122ec5aSJacob Faibussowitsch CHKERRQ(PetscFinalize()); 39*b122ec5aSJacob Faibussowitsch return 0; 40c4762a1bSJed Brown } 41c4762a1bSJed Brown 42c4762a1bSJed Brown /*TEST 43c4762a1bSJed Brown 44c4762a1bSJed Brown build: 45c4762a1bSJed Brown requires: x 46c4762a1bSJed Brown 47c4762a1bSJed Brown test: 48c4762a1bSJed Brown output_file: output/ex1_1.out 49c4762a1bSJed Brown 50c4762a1bSJed Brown test: 51c4762a1bSJed Brown suffix: db 52c4762a1bSJed Brown args: -draw_double_buffer 0 53c4762a1bSJed Brown output_file: output/ex1_1.out 54c4762a1bSJed Brown 55c4762a1bSJed Brown test: 56c4762a1bSJed Brown suffix: df 57c4762a1bSJed Brown args: -draw_fast 58c4762a1bSJed Brown output_file: output/ex1_1.out 59c4762a1bSJed Brown 60c4762a1bSJed Brown test: 61c4762a1bSJed Brown suffix: dv 62c4762a1bSJed Brown args: -draw_virtual 63c4762a1bSJed Brown output_file: output/ex1_1.out 64c4762a1bSJed Brown 65c4762a1bSJed Brown TEST*/ 66