wxOpenGL frame work for rendering numpy data

wxOpenGL framework

This frame work lets you render and dynamically modify numpy data (quad-, triangle-meshes) via provided wxOpenGL framework. 

Application functions (keyboard keys):
+ E - Toggle edge visibility

Application functions (viewport manipulation):
+ Middle mouse button & mouse motion - rotate opject
+ Mouse wheel - Zoom
+ Ctrl & Middle mouse button & mouse motion - rotate object
+ Shift & Middle mouse button & mouse motion - translate object

The framework can be downloaded at:
https://www.dropbox.com/sh/ip306uavm7jpekg/2adXHWODU1

The package contains the application (wx_opengl.py) and a render object class (render_object.py) which may be used to add triangle / quad data and meshed to the application viewport. 

Low-cost, small animal thermal ablation system

 The goal of this project was to develop a cheap, simple and robust ablation system for creating small thermal lesions in animals. As soon as biological tissues are exposed to temperatures > 40 degree Celsius for several minutes (~>30) tissue necrosis occurs and introduces cell death. This technique is used in cancer therapy to kill cells and to destroy tumors. 

Schematic of small animal ablation example in a mouse brain to study brain cancer treatments.

The understanding of ablation techniques and the development of heating algorithms/strategies rely on animal research studies. To provide a low cost system for ablation studies in small animals (mice,rats) I developed a simple system including a graphic user interface.

Schematic connection sketch for the micro-controller and electronic board.

The system uses an Arduino-Uno Micro-Controller (MC) board and an ordinary, resistive thermistor. The graphic user interface (GUI) communicates with the MC about 4 times per second. In a first request voltage is read from the thermistor to determine the actual temperature. Then in a second step the GUI/program calculates the necessary voltage to reach the required set-temperature (defined by user) and  sends the info to the MC. On the MC the voltage reaching the thermistor will be set accordingly. An integrated PI (proportional/integral) controller regulates the voltage to keep the temperature at the thermistor constant.

Graphic user interface for the Thermistor control

Total costs of the utilities < $50 (Micro controller board $25, Thermistor $8, Wires, etc $17)

Links:
Thermistor:
http://www.mouser.com/ProductDetail/Honeywell/112-102EAJ-B01/?qs=F1jq4PciTHu%252b30xNPtI64w%3D%3D&gclid=CJzDjPjl1bkCFdSd4Aod5VYA8A

Surface rendering examples

Sample images. Surface rendering of CT image data

Just a few more sample images created with a wxPython OpenGL rendering application...