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 int x = 0,y = 0,width = 256,height = 256,i; 12c4762a1bSJed Brown 13*9566063dSJacob Faibussowitsch PetscCall(PetscInitialize(&argc,&argv,NULL,help)); 14*9566063dSJacob Faibussowitsch PetscCall(PetscDrawCreate(PETSC_COMM_WORLD,0,"Title",x,y,width,height,&draw)); 15*9566063dSJacob Faibussowitsch PetscCall(PetscDrawSetFromOptions(draw)); 16*9566063dSJacob Faibussowitsch PetscCallMPI(MPI_Comm_size(PETSC_COMM_WORLD,&size)); 17*9566063dSJacob Faibussowitsch PetscCallMPI(MPI_Comm_rank(PETSC_COMM_WORLD,&rank)); 18c4762a1bSJed Brown for (i=rank; i<height; i+=size) { 19c4762a1bSJed Brown PetscReal y = ((PetscReal)i)/(height-1); 20*9566063dSJacob Faibussowitsch PetscCall(PetscDrawLine(draw,0.0,y,1.0,y,i%256)); 21c4762a1bSJed Brown } 22*9566063dSJacob Faibussowitsch PetscCall(PetscDrawFlush(draw)); 23*9566063dSJacob Faibussowitsch PetscCall(PetscDrawPause(draw)); 24*9566063dSJacob Faibussowitsch PetscCall(PetscDrawSave(draw)); 25*9566063dSJacob Faibussowitsch PetscCall(PetscDrawDestroy(&draw)); 26*9566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 27b122ec5aSJacob Faibussowitsch return 0; 28c4762a1bSJed Brown } 29c4762a1bSJed Brown 30c4762a1bSJed Brown /*TEST 31c4762a1bSJed Brown 32c4762a1bSJed Brown build: 33c4762a1bSJed Brown requires: x 34c4762a1bSJed Brown 35c4762a1bSJed Brown test: 36c4762a1bSJed Brown output_file: output/ex1_1.out 37c4762a1bSJed Brown 38c4762a1bSJed Brown TEST*/ 39