1c4762a1bSJed Brown 2c4762a1bSJed Brown static char help[] = "Makes a simple histogram.\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 PetscDrawHG hist; 11c4762a1bSJed Brown PetscDrawAxis axis; 12c4762a1bSJed Brown int n = 20,i,x = 0,y = 0,width = 400,height = 300,bins = 8; 13c4762a1bSJed Brown PetscInt w = 400,h = 300,nn = 20,b = 8,c = PETSC_DRAW_GREEN; 14c4762a1bSJed Brown int color = PETSC_DRAW_GREEN; 15c4762a1bSJed Brown const char *xlabel,*ylabel,*toplabel; 16c4762a1bSJed Brown PetscReal xd; 17c4762a1bSJed Brown PetscBool flg; 18c4762a1bSJed Brown 19c4762a1bSJed Brown xlabel = "X-axis Label"; toplabel = "Top Label"; ylabel = "Y-axis Label"; 20c4762a1bSJed Brown 21*327415f7SBarry Smith PetscFunctionBeginUser; 229566063dSJacob Faibussowitsch PetscCall(PetscInitialize(&argc,&argv,NULL,help)); 239566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,NULL,"-width",&w,NULL)); 249566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,NULL,"-height",&h,NULL)); 259566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,NULL,"-n",&nn,NULL)); 269566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,NULL,"-bins",&b,NULL)); 279566063dSJacob Faibussowitsch PetscCall(PetscOptionsGetInt(NULL,NULL,"-color",&c,NULL)); 289566063dSJacob Faibussowitsch PetscCall(PetscOptionsHasName(NULL,NULL,"-nolabels",&flg)); 29c4762a1bSJed Brown width = (int) w; height = (int)h; n = (int)nn; bins = (int) b; color = (int) c; 30c4762a1bSJed Brown if (flg) { xlabel = NULL; ylabel = NULL; toplabel = NULL; } 31c4762a1bSJed Brown 329566063dSJacob Faibussowitsch PetscCall(PetscDrawCreate(PETSC_COMM_WORLD,0,"Title",x,y,width,height,&draw)); 339566063dSJacob Faibussowitsch PetscCall(PetscDrawSetFromOptions(draw)); 349566063dSJacob Faibussowitsch PetscCall(PetscDrawHGCreate(draw,bins,&hist)); 359566063dSJacob Faibussowitsch PetscCall(PetscDrawHGSetColor(hist,color)); 369566063dSJacob Faibussowitsch PetscCall(PetscDrawHGGetAxis(hist,&axis)); 379566063dSJacob Faibussowitsch PetscCall(PetscDrawAxisSetColors(axis,PETSC_DRAW_BLACK,PETSC_DRAW_RED,PETSC_DRAW_BLUE)); 389566063dSJacob Faibussowitsch PetscCall(PetscDrawAxisSetLabels(axis,toplabel,xlabel,ylabel)); 399566063dSJacob Faibussowitsch /*PetscCall(PetscDrawHGSetFromOptions(hist));*/ 40c4762a1bSJed Brown 41c4762a1bSJed Brown for (i=0; i<n; i++) { 42c4762a1bSJed Brown xd = (PetscReal)(i - 5); 439566063dSJacob Faibussowitsch PetscCall(PetscDrawHGAddValue(hist,xd*xd)); 44c4762a1bSJed Brown } 459566063dSJacob Faibussowitsch PetscCall(PetscDrawHGDraw(hist)); 469566063dSJacob Faibussowitsch PetscCall(PetscDrawHGSave(hist)); 47c4762a1bSJed Brown 489566063dSJacob Faibussowitsch PetscCall(PetscDrawHGDestroy(&hist)); 499566063dSJacob Faibussowitsch PetscCall(PetscDrawDestroy(&draw)); 509566063dSJacob Faibussowitsch PetscCall(PetscFinalize()); 51b122ec5aSJacob Faibussowitsch return 0; 52c4762a1bSJed Brown } 53c4762a1bSJed Brown 54c4762a1bSJed Brown /*TEST 55c4762a1bSJed Brown 56c4762a1bSJed Brown build: 57c4762a1bSJed Brown requires: x 58c4762a1bSJed Brown 59c4762a1bSJed Brown test: 60c4762a1bSJed Brown output_file: output/ex1_1.out 61c4762a1bSJed Brown 62c4762a1bSJed Brown TEST*/ 63