-Cone
-====
+Cone segment
+============
+
+Cone segment feature creates a cone or its segment using GDML language.
+
+To create a Cone segment in the active part:
+
+#. select in the Main Menu *GDML - > Cone segment* item or
+#. click **Cone segment** button in the toolbar.
+
+.. figure:: images/cone_btn.png
+ :align: center
+
+ **Cone segment** button
+
+The following property panel will be opened:
+
+.. figure:: images/Cone_panel.png
+ :align: center
+
+ **Cone property panel**
+
+The property panel contains an image which explains the meaning of input values:
+
+- **rmin1, rmax1** - minimal and maximal radii of the cone base.
+- **rmin2, rmax2** - minimal and maximal radii of the cone top.
+- **z** - height of the cone.
+- **startphi** - angle from the axis to the start of the cone segment.
+- **deltaphi** - arc angle of the cone segment.
+
+**TUI Command**: *model.addConeSegment(Part_doc, rmin1, rmax1, rmin2, rmax2, z, startphi, deltaphi)*
+
+**Arguments**: Part + Rmin of base + Rmax of base + Rmin of top + Rmax of top + height + start angle + arc angle.
+
+Result
+""""""
+
+The Result of the operation will be a SOLID.
+
+.. figure:: images/CreatedCone.png
+ :align: center
+
+ Cone created
+
+**See Also** a sample TUI Script of :ref:`tui_create_conesegment` operation.
