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Category Archives: Programming

Programming

Blender CGI, Programming

Blender: How to control motion of particles by python script

Author Nobuyuki Hirakata Date 2017/09/15
There are some pitfalls to control motion of particles by python script. I put...
Tagged Code, Python | Leave a comment |
Programming

Python: State-Space model test with numpy

Author Nobuyuki Hirakata Date 2016/07/06
This is state space model test with numpy. Sorry if it includes mistakes. The...
Tagged Code, Python, Test | Leave a comment |
Programming

Python: Differentiation matrix by numpy

Author Nobuyuki Hirakata Date 2016/03/30
I made snippets for numerical differentiation by matrix. I think one of the pros...
Tagged Code, Math, Python | Leave a comment |
Programming

Python: Projectile motion of classical physics

Author Nobuyuki Hirakata Date 2016/03/28
This is a python snippet to calculate max projectile angle and distance. It is...
Tagged Math, Python, Simulation | Leave a comment |
Blender CGI, Programming

Blender python: Add-on template with input on the tool shelf left

Author Nobuyuki Hirakata Date 2016/03/02
I made a python code template for Blender add-on. The primary purpose of the...
Tagged Code, Python, Tutorial | Leave a comment |
Data Science, Programming

Python: Snippet to convert csv into nodes-links json for D3.js network data

Author Nobuyuki Hirakata Date 2015/06/25
Network data format of D3.js  is commonly nodes-links json. The nodes contain id, ,name,...
Tagged Code, D3.js, Python, Tutorial | 2 Comments |
Programming

Python: Cobb–Douglas production function with Sympy

Author Nobuyuki Hirakata Date 2015/06/25
I made equation and charts of Cobb-Douglas production function to test Sympy. var() registers...
Tagged Economics, Math, Python | 2 Comments |
Programming

Python: .command file to execute pyenv and iPython notebook by a double-click on Mac

Author Nobuyuki Hirakata Date 2015/05/22
Activating pyenv, moving current path, turning on iPython notebook is everyday chore before I...
Tagged Python, Tutorial | Leave a comment |
Programming

D3.js: D3 with Backbone.js-Marionette.js

Author Nobuyuki Hirakata Date 2015/02/15
Marionette.js is a reliable sidekick of Backbone.js, and an almost de-facto plugin of the...
Tagged Code, D3.js | Leave a comment |
Programming

Pandas: how to unpivot crosstable

Author Nobuyuki Hirakata Date 2015/02/15
Many data provided by government are not vertically stacked table like database. They are...
Tagged Code, Python | Leave a comment |
Blender CGI, Programming

Blender: Add-on version for “Change multiple curve origins”

Author Nobuyuki Hirakata Date 2014/11/25
I made the snippet of “Change Multiple Curve Origin” an Blender add-on to be able...
Tagged Code, Python | Leave a comment |
Blender CGI, Programming

Blender: Python script to change curve’s origin to a tip

Author Nobuyuki Hirakata Date 2014/11/20
The problem: When you rotate a Bezier curve, the curve spin around the curve’s...
Tagged Code, Python, Tutorial | Leave a comment |
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