1c4762a1bSJed Brown static char help[] = "Demonstrates use of color map\n"; 2c4762a1bSJed Brown 3c4762a1bSJed Brown #include <petscsys.h> 4c4762a1bSJed Brown #include <petscdraw.h> 5c4762a1bSJed Brown 6d71ae5a4SJacob Faibussowitsch int main(int argc, char **argv) 7d71ae5a4SJacob Faibussowitsch { 8c4762a1bSJed Brown PetscDraw draw; 9c4762a1bSJed Brown PetscMPIInt size, rank; 10c4762a1bSJed Brown int x = 0, y = 0, width = 256, height = 256, i; 11c4762a1bSJed Brown 12327415f7SBarry Smith PetscFunctionBeginUser; 139566063dSJacob Faibussowitsch PetscCall(PetscInitialize(&argc, &argv, NULL, help)); 149566063dSJacob Faibussowitsch PetscCall(PetscDrawCreate(PETSC_COMM_WORLD, 0, "Title", x, y, width, height, &draw)); 159566063dSJacob Faibussowitsch PetscCall(PetscDrawSetFromOptions(draw)); 169566063dSJacob Faibussowitsch PetscCallMPI(MPI_Comm_size(PETSC_COMM_WORLD, &size)); 179566063dSJacob 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); 209566063dSJacob Faibussowitsch PetscCall(PetscDrawLine(draw, 0.0, y, 1.0, y, i % 256)); 21c4762a1bSJed Brown } 229566063dSJacob Faibussowitsch PetscCall(PetscDrawFlush(draw)); 239566063dSJacob Faibussowitsch PetscCall(PetscDrawPause(draw)); 249566063dSJacob Faibussowitsch PetscCall(PetscDrawSave(draw)); 259566063dSJacob Faibussowitsch PetscCall(PetscDrawDestroy(&draw)); 269566063dSJacob 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: 36*3886731fSPierre Jolivet output_file: output/empty.out 37c4762a1bSJed Brown 38c4762a1bSJed Brown TEST*/ 39