Geometry Reader (Axisymmetric)¶

New in version 2.3.0.

This page explains how to use the Geometry Reader (Axisymmetric) to visualize the axisymmetric active poloidal field coils, as well as axisymmetric passive conductor structures.

Supported IDSs¶

The following IDS and structures are supported in the Geometry Reader (Axisymmetric):

IDS	Structure
`pf_active`	coil geometries
`pf_passive`	loop geometries
`ferritic`	axisymmetric geometries
`ic_antennas`	strap geometries
`iron_core`	segment geometries

Using the Geometry Reader (Axisymmetric)¶

The Geometry Reader (Axisymmetric) functions similarly to the GGD Reader, with the same interface and data loading workflow. This means that the steps for loading an URI, an IDS, and selecting attributes are identical. Refer to the GGD Reader for detailed instructions on:

Loading an URI: How to provide the file path or select a dataset.
Loading an IDS: How to load a dataset and display the grid.
Selecting attribute arrays: How to choose and visualize attributes.

Setting the Geometry Resolution¶

The Geometry Reader (Axisymmetric) allows you to change the resolution parameter that controls how many points are used to render the arcs_of_circle and annulus geometries.

../_images/annulus_resolution.png — `annulus` geometry element with a resolution of 5 (left) and a resolution of 50 (right)¶

Example Case¶

The following figure uses the Geometry Reader (Axisymmetric) to visualize the geometries of the pf_active and pf_passive IDSs of the following machine description URIs:

imas:hdf5?path=/work/imas/shared/imasdb/ITER_MD/3/111001/204
imas:hdf5?path=/work/imas/shared/imasdb/ITER_MD/3/115004/6
imas:hdf5?path=/work/imas/shared/imasdb/ITER_MD/3/116001/3
imas:hdf5?path=/work/imas/shared/imasdb/ITER_MD/3/124001/3

Tip

You can use the Rotational Extrusion filter in ParaView to visualize a rough 3D view of the axisymmetric geometry:

Last update: 2026-06-24