--- title: "Options" url: "https://help.maxon.net/c4d/en-us/Content/html/TOOLSPLINEARC-MDATA_MAINGROUP.html" section_path: "Spline Menu > Spline Arc > Options" element_id: "TOOLSPLINEARC" group_id: "MDATA_MAINGROUP" description: "These settings can be used to fine-tune the Spline Arc object or to create slight variations of the Spline Arc with modified settings (New Transform …" --- ## Options ### Middle Point Parameter ID: `MDATA_SPLINEARC_MIDPOINT` · Range: [XYZ m] ### End Point Parameter ID: `MDATA_SPLINEARC_ENDPOINT` · Range: [XYZ m] ### First Point Parameter ID: `MDATA_SPLINEARC_FIRSTPOINT` · Range: [XYZ m] ### Center Parameter ID: `MDATA_SPLINEARC_CENTER` · Range: [XYZ m] ### Radius Parameter ID: `MDATA_SPLINEARC_RADIUS` · Range: [0..+∞m] ### Angle Parameter ID: `MDATA_SPLINEARC_ANGLE` · Range: [-360..360°] ![Image: 039751.jpg](https://help.maxon.net/c4d/en-us/Content/Resources/Images/039751.jpg) These settings can be used to fine-tune the Spline Arc object or to create slight variations of the Spline Arc with modified settings (**New Transform** command in the Tool menu). However, note that links to existing spline points might be lost if settings other than **Center** and **Middle Point** are modified. Additional segments will then be created. The coordinates defined here relate to the world coordinate system.