# Importing compas\_fd to rhino8 ScriptEditor

**URL:** <https://forum.compas-framework.org/t/importing-compas-fd-to-rhino8-scripteditor/793>\
**Category:** compas\_rhino\
**Created:** [February 19, 2024, 8:42am UTC](https://forum.compas-framework.org/t/importing-compas-fd-to-rhino8-scripteditor/793 "2024-02-19T08:42:22Z")\
**Posts on this page:** 18\
**Page:** 1

<div class="post-metadata">

**Author:** ![lifeisapeachfest](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.compas-framework.org/lifeisapeachfest/32/692_2.png) [@lifeisapeachfest](https://forum.compas-framework.org/u/lifeisapeachfest)\
**Post date:** [February 19, 2024, 8:42am UTC](https://forum.compas-framework.org/t/importing-compas-fd-to-rhino8-scripteditor/793/1 "2024-02-19T08:42:22Z")

</div>

Hi Tom,

I’m trying to import compas\_fd to rhino8 Script editor and since its pip installable I add it to the package requirements in the beginning, like below

```auto
#! python3
# r: compas_fd

import compas_fd
from compas_fd.datastructures import CableMesh

```

but the ScriptEditor freezes and I’m having to kill rhino and restart. (perhaps this is a rhino issue) ?

I want to be able to use compas\_fd and compas.dev, would you recommend sticking to rhino7 (so compas\_fd will run with compas.rpc?) or use the latest version with viewer?

It is important I visualize the geometry in rhino in the end. Any suggestions might be helpful

Thanks!

---

<div class="post-metadata">

**Author:** ![tomvanmele](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.compas-framework.org/tomvanmele/32/13_2.png) [@tomvanmele](https://forum.compas-framework.org/u/tomvanmele)\
**Post date:** [February 19, 2024, 12:56pm UTC](https://forum.compas-framework.org/t/importing-compas-fd-to-rhino8-scripteditor/793/2 "2024-02-19T12:56:02Z")

</div>

hi,

currently, only a subset of `compas_fd` has been re-released. the `CableMesh` is not part of that yet (see [Constrained Form Finding with Iterative Force Density — COMPAS Force Density](https://blockresearchgroup.github.io/compas_fd/latest/index.html)). however, you can just use a normal mesh instead and visualize the results in a scene like you would normally do.

```python
from compas.datastructures import Mesh
from compas.geometry import Point, Vector, Line, Sphere, NurbsCurve
from compas_fd.solvers import fd_constrained_numpy
from compas_fd.constraints import Constraint

# mesh

mesh = Mesh.from_meshgrid(dx=10, nx=10)

# vertices, edges

vertices = mesh.vertices_attributes("xyz")
edges = list(mesh.edges())

# fixed vertices

fixed = list(mesh.vertices_where(vertex_degree=2))

# loads

loads = [[0, 0, 0] for _ in range(mesh.number_of_vertices())]

# force densities

q = []
for edge in edges:
    if mesh.is_edge_on_boundary(edge):
        q.append(10)
    else:
        q.append(1.0)

# constraints

arch = NurbsCurve.from_points([[5, 0, 0], [5, 5, 5], [5, 10, 0]])
constraint = Constraint(arch)

constraints = [None] * mesh.number_of_vertices()
for vertex in mesh.vertices_where(x=5):
    constraints[vertex] = constraint
    fixed.append(vertex)

# solve and update

result = fd_constrained_numpy(
    vertices=vertices,
    fixed=fixed,
    edges=edges,
    forcedensities=q,
    loads=loads,
    constraints=constraints,
)

for vertex, attr in mesh.vertices(data=True):
    attr["x"] = result.vertices[vertex, 0]
    attr["y"] = result.vertices[vertex, 1]
    attr["z"] = result.vertices[vertex, 2]

```

---

<div class="post-metadata">

**Author:** ![tomvanmele](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.compas-framework.org/tomvanmele/32/13_2.png) [@tomvanmele](https://forum.compas-framework.org/u/tomvanmele)\
**Post date:** [February 19, 2024, 12:58pm UTC](https://forum.compas-framework.org/t/importing-compas-fd-to-rhino8-scripteditor/793/3 "2024-02-19T12:58:17Z")

</div>

i would also use the install instructions available here [Working in Rhino 8 — COMPAS](https://compas.dev/compas/latest/userguide/cad.rhino8.html) instead of the comment based requirements. as far as i know (and at least until recently) using the comment based requirements install the required packages over and over again…

---

<div class="post-metadata">

**Author:** ![tomvanmele](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.compas-framework.org/tomvanmele/32/13_2.png) [@tomvanmele](https://forum.compas-framework.org/u/tomvanmele)\
**Post date:** [February 19, 2024, 12:59pm UTC](https://forum.compas-framework.org/t/importing-compas-fd-to-rhino8-scripteditor/793/4 "2024-02-19T12:59:23Z")

</div>

i will update the package further in the coming days and add a tutorial and examples to the docs

---

<div class="post-metadata">

**Author:** ![lifeisapeachfest](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.compas-framework.org/lifeisapeachfest/32/692_2.png) [@lifeisapeachfest](https://forum.compas-framework.org/u/lifeisapeachfest)\
**Post date:** [February 19, 2024, 2:06pm UTC](https://forum.compas-framework.org/t/importing-compas-fd-to-rhino8-scripteditor/793/5 "2024-02-19T14:06:58Z")

</div>

thanks! I have a basic question, I found my rhino python executable path, what do I do with it? should I paste it somewhere?

 ![test8](https://us1.discourse-cdn.com/flex015/uploads/compas_framework1/original/1X/b5af81edeeb2b9a3b559f1fb5abecfca14bbd507.jpeg)

---

<div class="post-metadata">

**Author:** ![lifeisapeachfest](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.compas-framework.org/lifeisapeachfest/32/692_2.png) [@lifeisapeachfest](https://forum.compas-framework.org/u/lifeisapeachfest)\
**Post date:** [February 19, 2024, 2:10pm UTC](https://forum.compas-framework.org/t/importing-compas-fd-to-rhino8-scripteditor/793/6 "2024-02-19T14:10:12Z")

</div>

alright, ignore the above. I see that it works if compas is in my machine. thanks!

 ![test9](https://us1.discourse-cdn.com/flex015/uploads/compas_framework1/original/1X/8c8482e69d02c9b8fcf26f494287f88589a4e3ad.jpeg)

---

<div class="post-metadata">

**Author:** ![lifeisapeachfest](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.compas-framework.org/lifeisapeachfest/32/692_2.png) [@lifeisapeachfest](https://forum.compas-framework.org/u/lifeisapeachfest)\
**Post date:** [February 19, 2024, 2:20pm UTC](https://forum.compas-framework.org/t/importing-compas-fd-to-rhino8-scripteditor/793/7 "2024-02-19T14:20:07Z")

</div>

thanks a lot for the example! another basic question, I have compas\_fd installed in an environment. but it does not load in Rhino8, should it be installed in my base environment ?

 ![test10](https://us1.discourse-cdn.com/flex015/uploads/compas_framework1/original/1X/b8ef772a529e58fe83beb78c64a5bf83973e82d7.jpeg)

---

<div class="post-metadata">

**Author:** ![tomvanmele](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.compas-framework.org/tomvanmele/32/13_2.png) [@tomvanmele](https://forum.compas-framework.org/u/tomvanmele)\
**Post date:** [February 19, 2024, 3:42pm UTC](https://forum.compas-framework.org/t/importing-compas-fd-to-rhino8-scripteditor/793/8 "2024-02-19T15:42:32Z")

</div>

i think this only works because you had already installed `compas` using the requirements thing…

---

<div class="post-metadata">

**Author:** ![tomvanmele](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.compas-framework.org/tomvanmele/32/13_2.png) [@tomvanmele](https://forum.compas-framework.org/u/tomvanmele)\
**Post date:** [February 19, 2024, 3:44pm UTC](https://forum.compas-framework.org/t/importing-compas-fd-to-rhino8-scripteditor/793/9 "2024-02-19T15:44:16Z")

</div>

just pas the path in the terminal and then add the `pip` instructions. for example

```bash
C:\Users\Uday\.rhinocode\py39-rh8\python.exe -m pip install compas_fd

```

---

<div class="post-metadata">

**Author:** ![tomvanmele](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.compas-framework.org/tomvanmele/32/13_2.png) [@tomvanmele](https://forum.compas-framework.org/u/tomvanmele)\
**Post date:** [February 19, 2024, 3:45pm UTC](https://forum.compas-framework.org/t/importing-compas-fd-to-rhino8-scripteditor/793/10 "2024-02-19T15:45:06Z")

</div>

or if you want to install from local source

```bash
cd path/to/compas_fd
C:\Users\Uday\.rhinocode\py39-rh8\python.exe -m pip install -e .

```

---

<div class="post-metadata">

**Author:** ![lifeisapeachfest](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.compas-framework.org/lifeisapeachfest/32/692_2.png) [@lifeisapeachfest](https://forum.compas-framework.org/u/lifeisapeachfest)\
**Post date:** [February 20, 2024, 8:35am UTC](https://forum.compas-framework.org/t/importing-compas-fd-to-rhino8-scripteditor/793/11 "2024-02-20T08:35:03Z")

</div>

yes this works and now I am able to import compas\_fd without loading having it every time with requirements in Script Editor.  
 ![test12](https://us1.discourse-cdn.com/flex015/uploads/compas_framework1/original/1X/ff34ab9745ad8f5836b54024cb69410fa6f4c371.jpeg)

---

<div class="post-metadata">

**Author:** ![lifeisapeachfest](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.compas-framework.org/lifeisapeachfest/32/692_2.png) [@lifeisapeachfest](https://forum.compas-framework.org/u/lifeisapeachfest)\
**Post date:** [February 20, 2024, 8:42am UTC](https://forum.compas-framework.org/t/importing-compas-fd-to-rhino8-scripteditor/793/12 "2024-02-20T08:42:10Z")

</div>

thanks for the bonus example. On running your code I do run into an error at the #solve and update part

the error message below:

```auto
Traceback (most recent call last):
  File "file:///C:/Users/Uday/OneDrive%20-%20sbp%20SE/Dokumente/coding/test4.py", line 44, in <module>
  File "C:\Users\Uday\.rhinocode\py39-rh8\lib\site-packages\compas_fd\solvers\fd_constrained_numpy.py", line 85, in fd_constrained_numpy
    _update_constraints(numdata, constraints, damping)
  File "C:\Users\Uday\.rhinocode\py39-rh8\lib\site-packages\compas_fd\solvers\fd_constrained_numpy.py", line 129, in _update_constraints
    constraint.location = numdata.xyz[vertex]
  File "C:\Users\Uday\.rhinocode\py39-rh8\lib\site-packages\compas_fd\constraints\curveconstraint.py", line 41, in location
    self.project()
  File "C:\Users\Uday\.rhinocode\py39-rh8\lib\site-packages\compas_fd\constraints\curveconstraint.py", line 59, in project
    xyz, self._param = self.geometry.closest_point(
  File "C:\Users\Uday\.rhinocode\py39-rh8\site-envs\default-KA6C24DI\compas_rhino\geometry\curves\curve.py", line 272, in closest_point
    result, t = self.rhino_curve.ClosestPoint(point_to_r
hino(point)) # type: ignore
AttributeError: 'NoneType' object has no attribute 'ClosestPoint'`Preformatted text`

```

I printed out Constraints and I see that some items are None where ever the vertex is not to be constrained, my guess it this None is causing the error ? print result below

```auto
print(constraints)

[None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, CurveConstraint(RhinoNurbsCurve(points=None, weigths=None, knots=None, multiplicities=None, degree=None, is_periodic=None), name=None), CurveConstraint(RhinoNurbsCurve(points=None, weigths=None, knots=None, multiplicities=None, degree=None, is_periodic=None), name=None), CurveConstraint(RhinoNurbsCurve(points=None, weigths=None, knots=None, multiplicities=None, degree=None, is_periodic=None), name=None), CurveConstraint(RhinoNurbsCurve(points=None, weigths=None, knots=None, multiplicities=None, degree=None, is_periodic=None), name=None), CurveConstraint(RhinoNurbsCurve(points=None, weigths=None, knots=None, multiplicities=None, degree=None, is_periodic=None), name=None), CurveConstraint(RhinoNurbsCurve(points=None, weigths=None, knots=None, multiplicities=None, degree=None, is_periodic=None), name=None), CurveConstraint(RhinoNurbsCurve(points=None, weigths=None, knots=None, multiplicities=None, degree=None, is_periodic=None), name=None), CurveConstraint(RhinoNurbsCurve(points=None, weigths=None, knots=None, multiplicities=None, degree=None, is_periodic=None), name=None), CurveConstraint(RhinoNurbsCurve(points=None, weigths=None, knots=None, multiplicities=None, degree=None, is_periodic=None), name=None), CurveConstraint(RhinoNurbsCurve(points=None, weigths=None, knots=None, multiplicities=None, degree=None, is_periodic=None), name=None), CurveConstraint(RhinoNurbsCurve(points=None, weigths=None, knots=None, multiplicities=None, degree=None, is_periodic=None), name=None), None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None]

```

OS: Windows10  
Rhino: Rhino 8.3.24 commercial version

---

<div class="post-metadata">

**Author:** ![tomvanmele](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.compas-framework.org/tomvanmele/32/13_2.png) [@tomvanmele](https://forum.compas-framework.org/u/tomvanmele)\
**Post date:** [February 20, 2024, 8:47am UTC](https://forum.compas-framework.org/t/importing-compas-fd-to-rhino8-scripteditor/793/13 "2024-02-20T08:47:56Z")

</div>

sorry, should have checked the example in rhino before sending. i guess i haven’t implemented the constraints for Rhino yet. it is not a big deal. just needs to be done. will let you know once it is ready…

---

<div class="post-metadata">

**Author:** ![lifeisapeachfest](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.compas-framework.org/lifeisapeachfest/32/692_2.png) [@lifeisapeachfest](https://forum.compas-framework.org/u/lifeisapeachfest)\
**Post date:** [February 20, 2024, 10:59am UTC](https://forum.compas-framework.org/t/importing-compas-fd-to-rhino8-scripteditor/793/14 "2024-02-20T10:59:34Z")

</div>

thanks! Additionally I also ran your example externally on VScode (with environment set up installing compas 2.0.4 latest stable and latest compas\_fd  
0.4.2). on line 34,

`arch = NurbsCurve.from_points([[5, 0, 0], [5, 5, 5], [5, 10, 0]])`

I get the following error:

```auto
Exception has occurred: PluginNotInstalledError
exception: no description
  File "C:\Users\Uday\OneDrive - sbp SE\Dokumente\coding\test5.py", line 34, in <module>
    arch = NurbsCurve.from_points([[5, 0, 0], [5, 5, 5], [5, 10, 0]])
compas.plugins.PluginNotInstalledError:

```

---

<div class="post-metadata">

**Author:** ![tomvanmele](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.compas-framework.org/tomvanmele/32/13_2.png) [@tomvanmele](https://forum.compas-framework.org/u/tomvanmele)\
**Post date:** [February 20, 2024, 11:02am UTC](https://forum.compas-framework.org/t/importing-compas-fd-to-rhino8-scripteditor/793/15 "2024-02-20T11:02:50Z")

</div>

you need to have `compas_occ` installed for Nurbs support outside of Rhino…

---

<div class="post-metadata">

**Author:** ![tomvanmele](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.compas-framework.org/tomvanmele/32/13_2.png) [@tomvanmele](https://forum.compas-framework.org/u/tomvanmele)\
**Post date:** [February 20, 2024, 11:04am UTC](https://forum.compas-framework.org/t/importing-compas-fd-to-rhino8-scripteditor/793/16 "2024-02-20T11:04:27Z")

</div>

i will work on the fd package later today. if you can add the bugs to the issue tracker (like you did for the Rhino implementation of the constraints) i can go through them one by one…,

---

<div class="post-metadata">

**Author:** ![tomvanmele](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.compas-framework.org/tomvanmele/32/13_2.png) [@tomvanmele](https://forum.compas-framework.org/u/tomvanmele)\
**Post date:** [February 26, 2024, 7:54pm UTC](https://forum.compas-framework.org/t/importing-compas-fd-to-rhino8-scripteditor/793/17 "2024-02-26T19:54:02Z")

</div>

hi keerthana,

 ![Screenshot 2024-02-26 at 20.48.49](https://us1.discourse-cdn.com/flex015/uploads/compas_framework1/original/1X/9decfe7259166d91eb9638f98ad7ffa551745065.jpeg)

just wanted to let you know that most problems are resolved.  
the screenshot is generated with the following code

```python
from compas.datastructures import Mesh
from compas.geometry import Point, Vector, Line, NurbsCurve
from compas.geometry import Sphere, Cylinder
from compas.scene import Scene
from compas.colors import Color

from compas_fd.solvers import fd_constrained_numpy
from compas_fd.constraints import Constraint

# mesh

mesh = Mesh.from_meshgrid(dx=100, nx=26)

# vertices, edges

vertices = mesh.vertices_attributes("xyz")
edges = list(mesh.edges())

# anchors/supports

supports = list(mesh.vertices_where(vertex_degree=2))
supports += list(mesh.vertices_where(x=50, y=0))
supports += list(mesh.vertices_where(x=50, y=100))

# loads

loads = [[0, 0, 0] for _ in range(mesh.number_of_vertices())]

# force densities

q = []
for edge in edges:
    if mesh.is_edge_on_boundary(edge):
        q.append(30)
    else:
        q.append(1.0)

# constraints

arch = NurbsCurve.from_points([[50, 0, 0], [50, 50, 50], [50, 100, 0]], degree=2)
constraint = Constraint(arch)

constraints = [None] * mesh.number_of_vertices()
constrained = []
for vertex in mesh.vertices_where(x=50):
    if vertex in supports:
        continue
    constraints[vertex] = constraint
    constrained.append(vertex)

# solve and update

result = fd_constrained_numpy(
    vertices=vertices,
    fixed=list(set(supports + constrained)),
    edges=edges,
    forcedensities=q,
    loads=loads,
    constraints=constraints,
)

for vertex, attr in mesh.vertices(data=True):
    attr["x"] = result.vertices[vertex, 0]
    attr["y"] = result.vertices[vertex, 1]
    attr["z"] = result.vertices[vertex, 2]

# visualize

scene = Scene()
scene.clear()

scene.add(mesh, disjoint=True)
scene.add(arch)

for vertex in supports:
    scene.add(mesh.vertex_point(vertex), color=Color.red())

for vertex in supports:
    point = mesh.vertex_point(vertex)
    vector = Vector(*result.residuals[vertex]) * -0.5
    line = Line.from_point_and_vector(point, vector)
    scene.add(line, color=Color.green())

for index, edge in enumerate(mesh.edges()):
    if mesh.is_edge_on_boundary(edge):
        line = mesh.edge_line(edge)
        radius = 0.005 * result.forces[index]
        pipe = Cylinder.from_line_and_radius(line, radius)
        scene.add(pipe, color=Color.red())

scene.draw()

```

we will release a new version of COMPAS with all of the small updates and a few more additional improvements on Friday (the weekly build)…

---

<div class="post-metadata">

**Author:** ![lifeisapeachfest](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.compas-framework.org/lifeisapeachfest/32/692_2.png) [@lifeisapeachfest](https://forum.compas-framework.org/u/lifeisapeachfest)\
**Post date:** [February 26, 2024, 9:41pm UTC](https://forum.compas-framework.org/t/importing-compas-fd-to-rhino8-scripteditor/793/18 "2024-02-26T21:41:30Z")

</div>

thanks a lot Tom! it work for me as well

 ![test14](https://us1.discourse-cdn.com/flex015/uploads/compas_framework1/original/1X/5eb6d20a65c0d18e0c7a9af5cd4f6db36dc928f6.jpeg)