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# PetscDrawSPCreate
Creates a scatter plot data structure. 
## Synopsis
```
#include "petscdraw.h" 
#include "petscsys.h" 
PetscErrorCode PetscDrawSPCreate(PetscDraw draw, int dim, PetscDrawSP *drawsp)
```
Collective


## Input Parameters

- ***win -*** the window where the graph will be made.
- ***dim -*** the number of sets of points which will be drawn



## Output Parameter

- ***drawsp -*** the scatter plot context





## Notes
Add points to the plot with `PetscDrawSPAddPoint()` or `PetscDrawSPAddPoints()`; the new points are not displayed until `PetscDrawSPDraw()` is called.

`PetscDrawSPReset()` removes all the points that have been added

`PetscDrawSPSetDimension()` determines how many point curves are being plotted.

The MPI communicator that owns the `PetscDraw` owns this `PetscDrawSP`, and each process can add points. All MPI ranks in the communicator must call `PetscDrawSPDraw()` to display the updated graph.


## See Also
 `PetscDrawLGCreate()`, `PetscDrawLG`, `PetscDrawBarCreate()`, `PetscDrawBar`, `PetscDrawHGCreate()`, `PetscDrawHG`, `PetscDrawSPDestroy()`, `PetscDraw`, `PetscDrawSP`, `PetscDrawSPSetDimension()`, `PetscDrawSPReset()`,
`PetscDrawSPAddPoint()`, `PetscDrawSPAddPoints()`, `PetscDrawSPDraw()`, `PetscDrawSPSave()`, `PetscDrawSPSetLimits()`, `PetscDrawSPGetAxis()`, `PetscDrawAxis`, `PetscDrawSPGetDraw()`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/sys/classes/draw/utils/dscatter.c.html#PetscDrawSPCreate">src/sys/classes/draw/utils/dscatter.c</A>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/sys/classes/draw/utils/dscatter.c)


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