Set up a tetrahedron radius ratio demo

Vectornaut commented

2025-03-12 18:57:58 +00:00

Member

We're planning a live demo where we use Dyna3 to find the circumscribed and inscribed spheres of a regular tetrahedron and calculate the ratio between their radii. Since it would be annoying to set up the whole problem during the demo, we need a way to skip to the last few steps. For example, we might load an assembly where:

The elements and constraints that specify the tetrahedron have already been set up.
The spheres that will become the circumscribed and inscribed spheres are present.
The regulators that will specify the spheres' roles have been created, and just need to be set.

If #66 is finished in time, we'll use it for this task.

We're planning a live demo where we use Dyna3 to find the circumscribed and inscribed spheres of a regular tetrahedron and calculate the ratio between their radii. Since it would be annoying to set up the whole problem during the demo, we need a way to skip to the last few steps. For example, we might load an assembly where: - The elements and constraints that specify the tetrahedron have already been set up. - The spheres that will become the circumscribed and inscribed spheres are present. - The regulators that will specify the spheres' roles have been created, and just need to be set. If #66 is finished in time, we'll use it for this task.

Vectornaut added this to the Demo project 2025-03-12 18:58:04 +00:00

Vectornaut added a new dependency 2025-03-12 18:58:15 +00:00

#73 Write a tetrahedron radius ratio test and example

Vectornaut added a new dependency 2025-03-12 18:58:30 +00:00

#66 Prototype an assembly serialization system

Vectornaut added a new dependency 2025-03-12 18:59:48 +00:00

#27 Display points

Vectornaut commented

2025-06-20 21:17:12 +00:00

Author

Member

I'm removing the dependencies on the following issues:

#66 because we decided that loading an assembly from a file would amount to calling a sequence of element and regulator creation commands—which is what the test assembly loading routines already do. That means addressing #66 wouldn't substantially simplify the code we use to set up demo assemblies, although it might tidy up the creation commands a bit.
#73 because we ended up working on the demo first. We can now use the demo code to help with #73.

I'm removing the dependencies on the following issues: - #66 because we decided that loading an assembly from a file would amount to calling a sequence of element and regulator creation commands—which is what the test assembly loading routines already do. That means addressing #66 wouldn't substantially simplify the code we use to set up demo assemblies, although it might tidy up the creation commands a bit. - #73 because we ended up working on the demo first. We can now use the demo code to help with #73.

Vectornaut removed a dependency 2025-06-20 21:17:23 +00:00

#66 Prototype an assembly serialization system

Vectornaut removed a dependency 2025-06-20 21:17:27 +00:00

#73 Write a tetrahedron radius ratio test and example

Vectornaut commented

2025-06-20 21:19:14 +00:00

Author

Member

Done on the Vectornaut/dyna3:demo-summer-2025 branch, as of commit 40f35ea.

Done on the [`Vectornaut/dyna3:demo-summer-2025`](https://code.studioinfinity.org/Vectornaut/dyna3/src/branch/demo-summer-2025) branch, as of commit [`40f35ea`](https://code.studioinfinity.org/Vectornaut/dyna3/commit/40f35ea1636189d1fdffda2ed96a28f06aec8198).

Vectornaut closed this issue

2025-06-20 21:19:14 +00:00

Rows
Columns

Set up a tetrahedron radius ratio demo #74