--- title: Constrained Points description: Constrained points ensure that a parametrically drawn line is straight but will restrict the ability to move the point freely. --- [Skip to content](https://support.podaris.com/what-are-constrained-points#main-content) English Show submenu for translations ![podaris\_logo\_png.png\]](https://support.podaris.com/hs-fs/hubfs/podaris_logo_png.png?height=50&name=podaris_logo_png.png) Open main navigation Close main navigation - English Show submenu for translations - [Go to podaris.com](https://podaris.com/) [Go to podaris.com](https://podaris.com/) Podaris Support Centre - There are no suggestions because the search field is empty. 1. [Help Center](https://support.podaris.com/?hsLang=en) 2. [Planning & Engineering](https://support.podaris.com/planning-engineering?hsLang=en) 3. [Terminology](https://support.podaris.com/planning-engineering?hsLang=en#terminology) # Constrained Points ## Constrained points ensure that a parametrically drawn line is straight but will restrict the ability to move the point freely. Constrained points are automatically set when using the [draw tool,](https://support.podaris.com/draw-tool?hsLang=en) and adding a new point to an existing line, or when clicking an existing point and ticking the **snap to line** checkbox on the *select *toolbar. ![snap to line](https://support.podaris.com/hubfs/snap-to-line-gif.gif) #### Identifying Constrained Points Constrained and unconstrained points are distinguished by their respective icons. | ![](https://support.podaris.com/hubfs/image-png-Mar-21-2021-10-30-39-88-PM.png) | A constrained point, snapped to a line. | | --- | --- | | ![](https://support.podaris.com/hubfs/image-png-Mar-21-2021-10-31-26-24-PM.png) | An unconstrained point | #### Stations as Constrained Points Stations may be constrained in the same way as other constrained points. If you find that you are unable to move a station in any direction other than left or right across a line, unchecking **snap to line **will allow you to position your station in any location and the connected path will bend to accommodate. ![moving stations](https://support.podaris.com/hubfs/station-snap-gif.gif) ### Station and Un/Constrained Point Visibility Stations can be hidden from view using the Stations on/off toggle in the [Display Settings](https://support.podaris.com/display-settings?hsLang=en). The visibility of constrained and unconstrained points cannot be toggled in [Podaris:Plan](https://support.podaris.com/podarisplan-overview?hsLang=en) however they not be visible if: • The [layer](https://support.podaris.com/layers-panel?hsLang=en) on which they exist is hidden • Certain [tools](https://support.podaris.com/tools?hsLang=en) are selected, e.g. the snapshot tool. Un/constrained points and stations can be differentiated at-a-glance by clicking on them with the [Select Tool](https://support.podaris.com/select-tool?hsLang=en), e.g. ![Select Tool](https://support.podaris.com/hs-fs/hubfs/image-png-Feb-19-2024-03-57-47-4208-PM.png?width=296&height=195&name=image-png-Feb-19-2024-03-57-47-4208-PM.png) Un/constrained points are not visible in [Podaris:Engage,](https://support.podaris.com/podarisengage?hsLang=en)   - [Welcome](https://support.podaris.com/welcome?hsLang=en#main-content) - [Introduction](https://support.podaris.com/welcome?hsLang=en#introduction) - [Getting Started](https://support.podaris.com/welcome?hsLang=en#getting-started) - [Key Concepts](https://support.podaris.com/welcome?hsLang=en#key-concepts) - [Obtaining Further Help](https://support.podaris.com/welcome?hsLang=en#obtaining-further-help) - [Projects](https://support.podaris.com/projects?hsLang=en#main-content) - [Projects Overview](https://support.podaris.com/projects?hsLang=en#projects-overview) - 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