# Mark area in display space

**URL:** https://discourse.vtk.org/t/mark-area-in-display-space/760
**Category:** Support
**Created:** [April 15, 2019, 1:44pm UTC](https://discourse.vtk.org/t/mark-area-in-display-space/760 "2019-04-15T13:44:54Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![pettaa123](https://discourse.vtk.org/user_avatar/discourse.vtk.org/pettaa123/32/218_2.png) [@pettaa123](https://discourse.vtk.org/u/pettaa123)
#### Post date: [April 15, 2019, 1:44pm UTC](https://discourse.vtk.org/t/mark-area-in-display-space/760/1 "2019-04-15T13:44:54Z")

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Any suggestions how to draw a rectangle or circle into display space, in order to mark an area in my 3D rendered scene? Something like [this](https://qph.fs.quoracdn.net/main-qimg-7a6e8ef29480afd9a7a1b4c6070733d5-c)