/*@
PetscDrawLGDestroy - Frees all space taken up by line graph data structure.
Collective over PetscDrawLG
Input Parameter:
. lg - the line graph context
Level: intermediate
.seealso: PetscDrawLGCreate()
@*/
PetscErrorCode PetscDrawLGDestroy(PetscDrawLG *lg)
{
PetscErrorCode ierr;
PetscInt i;
PetscFunctionBegin;
if (!*lg) PetscFunctionReturn(0);
if (((PetscObject)(*lg))->classid != PETSC_DRAW_CLASSID) {
PetscValidHeaderSpecific(*lg,PETSC_DRAWLG_CLASSID,1);
}
if (--((PetscObject)(*lg))->refct > 0) {*lg = 0; PetscFunctionReturn(0);}
if (((PetscObject)(*lg))->classid == PETSC_DRAW_CLASSID) {
ierr = PetscObjectDestroy((PetscObject*)lg);CHKERRQ(ierr);
PetscFunctionReturn(0);
}
if ((*lg)->legend) {
for (i=0; i<(*lg)->dim; i++) {
ierr = PetscFree((*lg)->legend[i]);CHKERRQ(ierr);
}
ierr = PetscFree((*lg)->legend);CHKERRQ(ierr);
}
ierr = PetscFree((*lg)->colors);CHKERRQ(ierr);
ierr = PetscDrawAxisDestroy(&(*lg)->axis);CHKERRQ(ierr);
ierr = PetscFree2((*lg)->x,(*lg)->y);CHKERRQ(ierr);
ierr = PetscHeaderDestroy(lg);CHKERRQ(ierr);
PetscFunctionReturn(0);
}
/* collective on KSP */
PetscErrorCode KSPPlotEigenContours_Private(KSP ksp,PetscInt neig,const PetscReal *r,const PetscReal *c)
{
PetscErrorCode ierr;
PetscReal xmin,xmax,ymin,ymax,*xloc,*yloc,*value,px0,py0,rscale,iscale;
PetscInt M,N,i,j;
PetscMPIInt rank;
PetscViewer viewer;
PetscDraw draw;
PetscDrawAxis drawaxis;
PetscFunctionBegin;
ierr = MPI_Comm_rank(((PetscObject)ksp)->comm,&rank);CHKERRQ(ierr);
if (rank) PetscFunctionReturn(0);
M = 80;
N = 80;
xmin = r[0]; xmax = r[0];
ymin = c[0]; ymax = c[0];
for (i=1; i<neig; i++) {
xmin = PetscMin(xmin,r[i]);
xmax = PetscMax(xmax,r[i]);
ymin = PetscMin(ymin,c[i]);
ymax = PetscMax(ymax,c[i]);
}
ierr = PetscMalloc3(M,PetscReal,&xloc,N,PetscReal,&yloc,M*N,PetscReal,&value);CHKERRQ(ierr);
for (i=0; i<M; i++) xloc[i] = xmin - 0.1*(xmax-xmin) + 1.2*(xmax-xmin)*i/(M-1);
for (i=0; i<N; i++) yloc[i] = ymin - 0.1*(ymax-ymin) + 1.2*(ymax-ymin)*i/(N-1);
ierr = PolyEval(neig,r,c,0,0,&px0,&py0);CHKERRQ(ierr);
rscale = px0/(PetscSqr(px0)+PetscSqr(py0));
iscale = -py0/(PetscSqr(px0)+PetscSqr(py0));
for (j=0; j<N; j++) {
for (i=0; i<M; i++) {
PetscReal px,py,tx,ty,tmod;
ierr = PolyEval(neig,r,c,xloc[i],yloc[j],&px,&py);CHKERRQ(ierr);
tx = px*rscale - py*iscale;
ty = py*rscale + px*iscale;
tmod = PetscSqr(tx) + PetscSqr(ty); /* modulus of the complex polynomial */
if (tmod > 1) tmod = 1.0;
if (tmod > 0.5 && tmod < 1) tmod = 0.5;
if (tmod > 0.2 && tmod < 0.5) tmod = 0.2;
if (tmod > 0.05 && tmod < 0.2) tmod = 0.05;
if (tmod < 1e-3) tmod = 1e-3;
value[i+j*M] = PetscLogScalar(tmod) / PetscLogScalar(10.0);
}
}
ierr = PetscViewerDrawOpen(PETSC_COMM_SELF,0,"Iteratively Computed Eigen-contours",PETSC_DECIDE,PETSC_DECIDE,450,450,&viewer);CHKERRQ(ierr);
ierr = PetscViewerDrawGetDraw(viewer,0,&draw);CHKERRQ(ierr);
ierr = PetscDrawTensorContour(draw,M,N,PETSC_NULL,PETSC_NULL,value);CHKERRQ(ierr);
if (0) {
ierr = PetscDrawAxisCreate(draw,&drawaxis);CHKERRQ(ierr);
ierr = PetscDrawAxisSetLimits(drawaxis,xmin,xmax,ymin,ymax);CHKERRQ(ierr);
ierr = PetscDrawAxisSetLabels(drawaxis,"Eigen-counters","real","imag");CHKERRQ(ierr);
ierr = PetscDrawAxisDraw(drawaxis);CHKERRQ(ierr);
ierr = PetscDrawAxisDestroy(&drawaxis);CHKERRQ(ierr);
}
ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr);
ierr = PetscFree3(xloc,yloc,value);CHKERRQ(ierr);
PetscFunctionReturn(0);
}
/*@C
PetscDrawBarDestroy - Frees all space taken up by bar graph data structure.
Collective over PetscDrawBar
Input Parameter:
. bar - The bar graph context
Level: intermediate
.seealso: PetscDrawBarCreate()
@*/
PetscErrorCode PetscDrawBarDestroy(PetscDrawBar *bar)
{
PetscErrorCode ierr;
PetscFunctionBegin;
if (!*bar) PetscFunctionReturn(0);
PetscValidHeaderSpecific(*bar,PETSC_DRAWBAR_CLASSID,1);
if (--((PetscObject)(*bar))->refct > 0) PetscFunctionReturn(0);
ierr = PetscFree((*bar)->values);CHKERRQ(ierr);
ierr = PetscStrArrayDestroy(&(*bar)->labels);CHKERRQ(ierr);
ierr = PetscDrawAxisDestroy(&(*bar)->axis);CHKERRQ(ierr);
ierr = PetscDrawDestroy(&(*bar)->win);CHKERRQ(ierr);
ierr = PetscHeaderDestroy(bar);CHKERRQ(ierr);
PetscFunctionReturn(0);
}
/*@C
PetscDrawHGDestroy - Frees all space taken up by histogram data structure.
Collective over PetscDrawHG
Input Parameter:
. hist - The histogram context
Level: intermediate
.seealso: PetscDrawHGCreate()
@*/
PetscErrorCode PetscDrawHGDestroy(PetscDrawHG *hist)
{
PetscErrorCode ierr;
PetscFunctionBegin;
if (!*hist) PetscFunctionReturn(0);
PetscValidHeaderSpecific(*hist,PETSC_DRAWHG_CLASSID,1);
if (--((PetscObject)(*hist))->refct > 0) {*hist = NULL; PetscFunctionReturn(0);}
ierr = PetscFree((*hist)->bins);CHKERRQ(ierr);
ierr = PetscFree((*hist)->values);CHKERRQ(ierr);
ierr = PetscDrawAxisDestroy(&(*hist)->axis);CHKERRQ(ierr);
ierr = PetscDrawDestroy(&(*hist)->win);CHKERRQ(ierr);
ierr = PetscHeaderDestroy(hist);CHKERRQ(ierr);
PetscFunctionReturn(0);
}
static PetscErrorCode PetscViewerDestroy_Draw(PetscViewer v)
{
PetscErrorCode ierr;
PetscInt i;
PetscViewer_Draw *vdraw = (PetscViewer_Draw*)v->data;
PetscFunctionBegin;
if (vdraw->singleton_made) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ORDER,"Destroying PetscViewer without first restoring singleton");
for (i=0; i<vdraw->draw_max; i++) {
ierr = PetscDrawAxisDestroy(&vdraw->drawaxis[i]);CHKERRQ(ierr);
ierr = PetscDrawLGDestroy(&vdraw->drawlg[i]);CHKERRQ(ierr);
ierr = PetscDrawDestroy(&vdraw->draw[i]);CHKERRQ(ierr);
}
ierr = PetscFree(vdraw->display);CHKERRQ(ierr);
ierr = PetscFree(vdraw->title);CHKERRQ(ierr);
ierr = PetscFree3(vdraw->draw,vdraw->drawlg,vdraw->drawaxis);CHKERRQ(ierr);
ierr = PetscFree(vdraw->bounds);CHKERRQ(ierr);
ierr = PetscFree(vdraw->drawtype);CHKERRQ(ierr);
ierr = PetscFree(v->data);CHKERRQ(ierr);
PetscFunctionReturn(0);
}
void PETSC_STDCALL petscdrawaxisdestroy_(PetscDrawAxis axis, int *__ierr ){
*__ierr = PetscDrawAxisDestroy(
(PetscDrawAxis)PetscToPointer((axis) ));
}