:orphan:
# PetscDrawLGAddPoint
Adds another point to each of the line graphs. The new point must have an X coordinate larger than the old points.
## Synopsis
```
#include "petscdraw.h"
PetscErrorCode PetscDrawLGAddPoint(PetscDrawLG lg, const PetscReal *x, const PetscReal *y)
```
Logically Collective
## Input Parameters
- ***lg -*** the line graph context
- ***x -*** array containing the x coordinate for the point on each curve
- ***y -*** array containing the y coordinate for the point on each curve
## Notes
You must call `PetscDrawLGDraw()` to display any added points
Call `PetscDrawLGReset()` to remove all points
## See Also
`PetscDrawLG`, `PetscDrawLGCreate()`, `PetscDrawLGAddPoints()`, `PetscDrawLGAddCommonPoint()`, `PetscDrawLGReset()`, `PetscDrawLGDraw()`
## Level
intermediate
## Location
src/sys/classes/draw/utils/lg.c
## Examples
src/ksp/ksp/tutorials/ex68.c
src/ksp/ksp/tutorials/ex69.c
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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/sys/classes/draw/utils/lg.c)
[Index of all Draw routines](index.md)
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[Index of all manual pages](/manualpages/singleindex.md)