1c4762a1bSJed Brown 2c4762a1bSJed Brown static char help[] = "Demonstrates use of color map\n"; 3c4762a1bSJed Brown 4c4762a1bSJed Brown #include <petscsys.h> 5c4762a1bSJed Brown #include <petscdraw.h> 6c4762a1bSJed Brown 7c4762a1bSJed Brown int main(int argc,char **argv) 8c4762a1bSJed Brown { 9c4762a1bSJed Brown PetscDraw draw; 10c4762a1bSJed Brown PetscMPIInt size,rank; 11c4762a1bSJed Brown PetscErrorCode ierr; 12c4762a1bSJed Brown int x = 0,y = 0,width = 256,height = 256,i; 13c4762a1bSJed Brown 14c4762a1bSJed Brown ierr = PetscInitialize(&argc,&argv,NULL,help);if (ierr) return ierr; 15*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscDrawCreate(PETSC_COMM_WORLD,0,"Title",x,y,width,height,&draw)); 16*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscDrawSetFromOptions(draw)); 17*5f80ce2aSJacob Faibussowitsch CHKERRMPI(MPI_Comm_size(PETSC_COMM_WORLD,&size)); 18*5f80ce2aSJacob Faibussowitsch CHKERRMPI(MPI_Comm_rank(PETSC_COMM_WORLD,&rank)); 19c4762a1bSJed Brown for (i=rank; i<height; i+=size) { 20c4762a1bSJed Brown PetscReal y = ((PetscReal)i)/(height-1); 21*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscDrawLine(draw,0.0,y,1.0,y,i%256)); 22c4762a1bSJed Brown } 23*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscDrawFlush(draw)); 24*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscDrawPause(draw)); 25*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscDrawSave(draw)); 26*5f80ce2aSJacob Faibussowitsch CHKERRQ(PetscDrawDestroy(&draw)); 27c4762a1bSJed Brown ierr = PetscFinalize(); 28c4762a1bSJed Brown return ierr; 29c4762a1bSJed Brown } 30c4762a1bSJed Brown 31c4762a1bSJed Brown /*TEST 32c4762a1bSJed Brown 33c4762a1bSJed Brown build: 34c4762a1bSJed Brown requires: x 35c4762a1bSJed Brown 36c4762a1bSJed Brown test: 37c4762a1bSJed Brown output_file: output/ex1_1.out 38c4762a1bSJed Brown 39c4762a1bSJed Brown TEST*/ 40