found one python pip tool for calculation of insolation
pip install lbt-honeybee
https://github.com/ladybug-tools/honeybee#tentative-road-map
could be great, i guess

When I tick on the flag to enable the add-on I get the following error:

Traceback (most recent call last):
  File "C:\Program Files\Blender Foundation\Blender 2.81\2.81\scripts\modules\addon_utils.py", line 351, in enable
    mod = __import__(module_name)
  File "C:\Users\Alberto\AppData\Roaming\Blender Foundation\Blender\2.81\scripts\addons\sverchok-extra-master\__init__.py", line 24, in <module>
    from sverchok.menu import SverchNodeItem, node_add_operators, SverchNodeCategory, register_node_panels, unregister_node_panels, unregister_node_add_operators, register_extra_category_provider
ImportError: cannot import name 'register_extra_category_provider' from 'sverchok.menu' (C:\Program Files\Blender Foundation\Blender 2.81\2.81\scripts\addons_contrib\sverchok\menu.py)

I haven't installed all the dependencies of sverchok-extra because I am interested to try just a couple of nodes at the moment but I don't think that this is related.

I am using Blender 2.81a.

Nodes which are to be moved to Sverchok have to have specific icons

Just wanted to say Thank you. For all you and Nikitron and all the developers and contributors to Sverchok, Sverchok Extra are contributing to these awesome tools.

I've used it since Blender 2.7x.

Awesome tools.

Your work, your help, your patience and persistence is MUCH appreciated.

Thank. you.

Very much.

After installing the SDF python module enabling sverchok-extra gives a traceback but removing it solves this problem.

Blender Version: 3.6.9 LTS

Two proposals:

1 A feature to Install Sverchok-Extra from Sverchok Prefences panel (one button to install and maybe another to go to the sv-extra preferences)

2 An option "check for updates" and update (for add-on and for dependencies) from the Sverchok-extra panel

Name of input sockets must become keys in input JSON dictionary.

Hi, i found a script which does Marching cubes calculation natively in blender. I think porting this script to a node helps users to use marching cube node without installing external libraries(SciKit-Image, PyMCubes).
Here is the script : https://github.com/mutantbob/blender-marching-cubes/blob/master/marching-cube.py

I have followed the README ，but it doesn't seem to work .

Thanks in advance!

Sverchok 1.2/3

After 3059d50 (""Voronoi on Mesh" node.", 2020-11-16), Sverchok Extra cannot start and throws an error:

Sverchok addon is not available. Sverchok-Extra will not work. 2020-11-22 15:56:13,536 [INFO] sverchok_extra.dependencies: Pygalmesh package is not available. Corresponding nodes will not be available Traceback (most recent call last): File "D:\BlenderBin\blender-2.90.1-windows64\2.90\scripts\modules\addon_utils.py", line 351, in enable mod = __import__(module_name) File "C:\Users\rendetto\AppData\Roaming\Blender Foundation\Blender\2.90\scripts\addons\sverchok-extra-master\__init__.py", line 71, in <module> imported_modules = [icons] + make_node_list() File "C:\Users\rendetto\AppData\Roaming\Blender Foundation\Blender\2.90\scripts\addons\sverchok-extra-master\__init__.py", line 67, in make_node_list module = importlib.import_module(f".{module_name}", base_name) File "D:\BlenderBin\blender-2.90.1-windows64\2.90\python\lib\importlib\__init__.py", line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "C:\Users\rendetto\AppData\Roaming\Blender Foundation\Blender\2.90\scripts\addons\sverchok-extra-master\nodes\spatial\voronoi_on_mesh.py", line 28, in <module> from sverchok.utils.sv_bmesh_utils import recalc_normals ImportError: cannot import name 'recalc_normals' from 'sverchok.utils.sv_bmesh_utils' (C:\Users\rendetto\AppData\Roaming\Blender Foundation\Blender\2.90\scripts\addons\sverchok-master\utils\sv_bmesh_utils.py)

I guess the ortho_project_curve() call needs an update according to the new input values.

In geom.py (line 105) the assignment "projection = ortho_project_curve(src_point, curve, init_samples)" looks outdated.

Thanks

The node is to be split in two:

• Sverchok's node will have "Linear" and "Cubic" modes
• Sverchok-Extra's node will have RBF and NURBS modes.

This addon has dependency of SciPy library but there is no SciPy in the dependency list.

I have written a few SDF primitives for my own usage and just realized that SDF had been incorporated into Sverchok-Extra. I may not be familiar enough with how the Sverchok node tree is structure, is there a way to add my custom nodes to the list of primitives?

If dependencies are not installed then some menu items looks wrong:

Activating sverchok-extra in Blender 2.93.4 Gives this error.

Traceback (most recent call last):
File "C:\Program Files\Blender Foundation\Blender 2.93\2.93\scripts\modules\addon_utils.py", line 351, in enable
mod = import(module_name)
File "C:\Users\LeonC\AppData\Roaming\Blender Foundation\Blender\2.93\scripts\addons\sverchok-extra-master_init_.py", line 124, in
imported_modules = [icons] + make_node_list()
File "C:\Users\LeonC\AppData\Roaming\Blender Foundation\Blender\2.93\scripts\addons\sverchok-extra-master_init_.py", line 120, in make_node_list
module = importlib.import_module(f".{module_name}", base_name)
File "C:\Program Files\Blender Foundation\Blender 2.93\2.93\python\lib\importlib_init_.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "C:\Users\LeonC\AppData\Roaming\Blender Foundation\Blender\2.93\scripts\addons\sverchok-extra-master\nodes\sdf\sdf_generate.py", line 19, in
class SvExSdfGenerateNode(bpy.types.Node, SverchCustomTreeNode):
File "C:\Users\LeonC\AppData\Roaming\Blender Foundation\Blender\2.93\scripts\addons\sverchok-extra-master\nodes\sdf\sdf_generate.py", line 82, in SvExSdfGenerateNode
default = sdf.mesh.BATCH_SIZE,
AttributeError: 'NoneType' object has no attribute 'mesh'

I tried install Pygalmesh in Windows 10 since 2 entire days ago and no lucky, i give up.

please someone do a guide to install pygalmesh in blender?

scale issue

• Classes are to be moved from sverchok_extra.* to sverchok.utils.*
• nodes to be moved

From examples in the Gallery, some require the "Marching Squares" node, others require the "Quads to Nurbs" node.

I've mentioned this before. It looks like everything that needs to be there is there, via pip install and pip list.

Sverchok-Extra doesn't install. A good amount of the dependencies are in Sverchok (as noted).

These two aren't showing up.

Maybe they're works in progress? Maybe a rest of the story?

Anything I can try.

Using Blender 2.90 - MacBook Pro, Catalina if that helps.

I have been modelling my Topologic nodes on sverchok extra and I just noticed that in the Shift-A menu, there is no separation between the sverchok-extra nodes and the Topologic nodes. I am suspecting somehow they are being read into the same category? If so, where should I look to make sure there is a separator line between the two packages? Thank you

Can i install this with blender 2.83 ? or do i need blender 2.82 .. or must i change something

• Minimal surface node: option to do not generate any mesh (only output Surface); make it the default one.
• Node(s) to generate "bending" VectorField from a) RbfSurface, b) NURBS surface, c) NURBS curve.
• Differential operators for scalar and vector fields: gradient, divergence, Laplace, rotor.
• "Marching squares" node that operates on textures. Implemented as "Image Field" node, that turns Image datablock into either Scalar Field or Vector Field. Marching Squares can be applied to any scalar field.

Here are some examples of what is possible with Sverchok-Extra.
Some of this is possible to achieve with plain Sverchok, but with much more nodes; or with Sverchok plus scripted nodes. In Sverchok-Extra, it becomes relatively easy.

I've tried installing it from the sverchok_extra_master zip file. Renaming it to sverchok_master. Renaming Sverchok to sverchok_bak and renaming sverchok_extra_master to sverchok. Under 2.83.5, 2.9.0 (final), and 2.79.

Here's one error I get:

I'd really love to use it. But, so far, stuck.

I get this error upon activation:

Traceback (most recent call last):
File "/usr/share/blender/3.0/scripts/modules/addon_utils.py", line 351, in enable
mod = import(module_name)
File "/home/sinasta/.config/blender/3.0/scripts/addons/sverchok-extra-master/init.py", line 120, in
imported_modules = [icons] + make_node_list()
File "/home/sinasta/.config/blender/3.0/scripts/addons/sverchok-extra-master/init.py", line 116, in make_node_list
module = importlib.import_module(f".{module_name}", base_name)
File "/usr/lib/python3.9/importlib/init.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "/home/sinasta/.config/blender/3.0/scripts/addons/sverchok-extra-master/nodes/sdf/estimate_bounds.py", line 11, in
from sverchok_extra.utils.sdf import *
File "/home/sinasta/.config/blender/3.0/scripts/addons/sverchok-extra-master/utils/sdf.py", line 113, in
ease.linear,
NameError: name 'ease' is not defined

is there any dependency i need to install?

When trying to enable the add-on I got an error:

Traceback (most recent call last):
File "D:\BlenderBin\blender-2.93.2-candidate+v293.9e64fd461ac3-windows.amd64-release\2.93\scripts\modules\addon_utils.py", line 351, in enable mod = __import__(module_name)
File "C:\Users\User\AppData\Roaming\Blender Foundation\Blender\2.93\scripts\addons\sverchok-extra-master\__init__.py", line 78, in <module> imported_modules = [icons] + make_node_list()
File "C:\Users\User\AppData\Roaming\Blender Foundation\Blender\2.93\scripts\addons\sverchok-extra-master\__init__.py", line 74, in make_node_list module = importlib.import_module(f".{module_name}", base_name)
File "D:\BlenderBin\blender-2.93.2-candidate+v293.9e64fd461ac3-windows.amd64-release\2.93\python\lib\importlib\__init__.py", line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level)
File "C:\Users\User\AppData\Roaming\Blender Foundation\Blender\2.93\scripts\addons\sverchok-extra-master\nodes\surface\triangular_mesh.py", line 7, in <module> from sverchok.core.update_system import process_from_node
ImportError: cannot import name 'process_from_node' from 'sverchok.core.update_system' (C:\Users\User\AppData\Roaming\Blender Foundation\Blender\2.93\scripts\addons\sverchok-master\core\update_system.py)

![Screenshot_20200119_234920](https://user-

images.githubusercontent.com/284644/72687091-a31e0c80-3b1c-11ea-8e43-0ca2f031e959.png)

Originally posted by @portnov in #1 (comment)

As best I can make out, I've got all the nodes. I can't be sure of the input of some nodes, there's more than one possibility (the Inverse option, one example.

Is there a gist I can try for this, just to see if / where a mistake is?

Thanx

If this helps:

https://pasteall.org/media/b/5/b5bfb34bc2eb14ea5046f0d54f04e65c.blend

Everything else did as directed.

hometp@hometp-ThinkPad-W530 ~ $ /home/hometp/Downloads/Blender/282/final/blender-2.82-linux64/2.82/python/bin/python3.7m -m pip install -U PyMCubes

Collecting PyMCubes
Using cached PyMCubes-0.0.12.tar.gz (12 kB)
Building wheels for collected packages: PyMCubes
Building wheel for PyMCubes (setup.py) ... error
ERROR: Command errored out with exit status 1:
command: /home/hometp/Downloads/Blender/282/final/blender-2.82-linux64/2.82/python/bin/python3.7m -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-cbc8axsz/PyMCubes/setup.py'"'"'; file='"'"'/tmp/pip-install-cbc8axsz/PyMCubes/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-913_1mdh
cwd: /tmp/pip-install-cbc8axsz/PyMCubes/
Complete output (19 lines):
running bdist_wheel
running build
running build_py
creating build
creating build/lib.linux-x86_64-3.7
creating build/lib.linux-x86_64-3.7/mcubes
copying mcubes/exporter.py -> build/lib.linux-x86_64-3.7/mcubes
copying mcubes/init.py -> build/lib.linux-x86_64-3.7/mcubes
running build_ext
building 'mcubes._mcubes' extension
creating build/temp.linux-x86_64-3.7
creating build/temp.linux-x86_64-3.7/mcubes
creating build/temp.linux-x86_64-3.7/mcubes/src
gcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -I/home/sergey/Developer/build_linux/deps/Release/sqlite/include -I/home/sergey/Developer/build_linux/deps/Release/bzip2/include -I/home/sergey/Developer/build_linux/deps/Release/lzma/include -I/home/sergey/Developer/build_linux/deps/Release/zlib/include -fPIC -fPIC -Imcubes/src -I/home/hometp/Downloads/Blender/282/final/blender-2.82-linux64/2.82/python/lib/python3.7/site-packages/numpy/core/include -I/home/hometp/Downloads/Blender/282/final/blender-2.82-linux64/2.82/python/include/python3.7m -c mcubes/src/_mcubes.cpp -o build/temp.linux-x86_64-3.7/mcubes/src/_mcubes.o -std=c++11 -Wall
mcubes/src/_mcubes.cpp:35:10: fatal error: Python.h: No such file or directory
#include "Python.h"
^~~~~~~~~~
compilation terminated.
error: command 'gcc' failed with exit status 1

ERROR: Failed building wheel for PyMCubes
Running setup.py clean for PyMCubes
Failed to build PyMCubes
Installing collected packages: PyMCubes
Running setup.py install for PyMCubes ... error
ERROR: Command errored out with exit status 1:
command: /home/hometp/Downloads/Blender/282/final/blender-2.82-linux64/2.82/python/bin/python3.7m -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-cbc8axsz/PyMCubes/setup.py'"'"'; file='"'"'/tmp/pip-install-cbc8axsz/PyMCubes/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' install --record /tmp/pip-record-l7ioj6k3/install-record.txt --single-version-externally-managed --compile --install-headers /home/hometp/Downloads/Blender/282/final/blender-2.82-linux64/2.82/python/include/python3.7m/PyMCubes
cwd: /tmp/pip-install-cbc8axsz/PyMCubes/
Complete output (19 lines):
running install
running build
running build_py
creating build
creating build/lib.linux-x86_64-3.7
creating build/lib.linux-x86_64-3.7/mcubes
copying mcubes/exporter.py -> build/lib.linux-x86_64-3.7/mcubes
copying mcubes/init.py -> build/lib.linux-x86_64-3.7/mcubes
running build_ext
building 'mcubes._mcubes' extension
creating build/temp.linux-x86_64-3.7
creating build/temp.linux-x86_64-3.7/mcubes
creating build/temp.linux-x86_64-3.7/mcubes/src
gcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -I/home/sergey/Developer/build_linux/deps/Release/sqlite/include -I/home/sergey/Developer/build_linux/deps/Release/bzip2/include -I/home/sergey/Developer/build_linux/deps/Release/lzma/include -I/home/sergey/Developer/build_linux/deps/Release/zlib/include -fPIC -fPIC -Imcubes/src -I/home/hometp/Downloads/Blender/282/final/blender-2.82-linux64/2.82/python/lib/python3.7/site-packages/numpy/core/include -I/home/hometp/Downloads/Blender/282/final/blender-2.82-linux64/2.82/python/include/python3.7m -c mcubes/src/_mcubes.cpp -o build/temp.linux-x86_64-3.7/mcubes/src/_mcubes.o -std=c++11 -Wall
mcubes/src/_mcubes.cpp:35:10: fatal error: Python.h: No such file or directory
#include "Python.h"
^~~~~~~~~~
compilation terminated.
error: command 'gcc' failed with exit status 1
----------------------------------------
ERROR: Command errored out with exit status 1: /home/hometp/Downloads/Blender/282/final/blender-2.82-linux64/2.82/python/bin/python3.7m -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-cbc8axsz/PyMCubes/setup.py'"'"'; file='"'"'/tmp/pip-install-cbc8axsz/PyMCubes/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' install --record /tmp/pip-record-l7ioj6k3/install-record.txt --single-version-externally-managed --compile --install-headers /home/hometp/Downloads/Blender/282/final/blender-2.82-linux64/2.82/python/include/python3.7m/PyMCubes Check the logs for full command output.

After reload.scripts sverchok-extra does not load
[ERROR] root: Can't obtain logging preferences, it's too early. Stack:

• Describe terms for Curve, Surface
• Move article about Fields to .rst
• Documentation for nodes (at least for those which are to be moved for Sverchok)