Elfield - Electric Field Simulator
Easy to install - Easy to demonstrate

Simple graphic electric field simulator written on C++ using GTK+.

Screenshot...

Build

git clone git@github.com:svlv/elfield.git
cd elfield
mkdir build && cd build
cmake ..
make

Drawing charges:
- Moving a charge under the cursor;
- Removing a charge under the cursor;
Drawing arrows to demonstrate electric field direction:
- Toggling the arrows;
- Hightlighting arrows under the cursor with the corresponding line;
Drawing electric field lines coming from positive to negative charges:
- Toggling the lines;
- Choosing straight lines or bezier curves;
- Choosing line step drawing;
Drawing electric field potential

Event	Action
Left click	Add a positive charge
Right click	Add a negative charge
Press left button and move cursor	Move a charge
Double left click on a charge	Open Charge properties dialog

Key	Action
`:`	Begin command line interface
`q`	Quit simulator
`c`	Remove all charges
`a`	Toggle arrows
`l`	Toggle lines
`p`	Toggle potential
`x`	Remove a charge under the cursor
`t`	Toggle straight line / bezier curve
`j`	Decrease line step for drawing
`k`	Increase line step for drawing
`Ctrl+s`	Save to png file
`Ctrl+c`	Copy to clipboard

Command	Action	Example
`set_background_color`	Set the given background color	`:set_background_color #ffffff`