I wrote a simple python script to draw convnet, with adjustable parameters.
It might be useful to you, if you just need some simple/non-fancy illustration. It copies the style of Figure 2 in "gradient based learning applied to document recognition"
There is Paint.net. It is a free image and photo editing software. It is easy to handle as MS Paint but contains a lot of advanced features. It supports different formats. Actually, it fulfills all your requirements.
Easy to handle software
Looks like MS Paint
Plugin Engine (support for several plugins)
Includes Effect for images
Forum and Community
I would recommend InkScape. I've used it both on Windows and on Linux (Ubuntu/SuSE) and I am really satisfied with the abilities of the program. The simple task of drawing lines and shapes are pretty straightforward. As can be seen from the figure below (from the InkScape website), you can select the drawing options on the left, and the pen color on the ...
I'm fond of zoomit by Microsoft Sysinternals. It lets you draw, type or zoom into a screen, is keystroke controlled (so it dosesn't get in your way in a presentation) and supports multiple colours. As such, its perfect for when you need to give a presentation and need to unobtrusively annotate the screen you're working on. It's freeware, portable (almost all ...
I love MyPaint -- a nice and easy tool for painting, with wonderful support for Wacom tablets.
On the site, it is described as:
a fast and easy open-source graphics application for digital painters. It lets you focus on the art instead of the program. You work on your canvas with minimum distractions, bringing up the interface only when you need it.
Python with numpy and matplotlib will let you rapidly draw a wide range of graphs and includes an xkcd plotting style, (based on XKCD cartoons).
All of the above are:
Free, Gratis & Open Source
To cover your requirements:
Color, maybe styles Colour definitely
Be able to put some ticks/data points on the axis No Problem
Different graph ...
You may use Inkscape and its Path/Node tool (Shift+F6)
It is Free/Open Source and multi-platform.
Here are some tutorials: http://www.inkscape.org/en/learn/tutorials/
Here is how you may begin:
First draw straight lines (1 and 2)
Modify them (3 and 4)
Right Click a line and choose Fill and Stroke. Modify Stroke to increase width
Save: File → Export ...
Would like to point out Gambit - a collection of tools for building and solving game theory (and, by extension, decision theory) problems.
It has ready-made binaries for Windows and Mac OS X, and source files that can be compiled almost everywhere else with wxWidgets. One should of course beware of downloading binaries from SourceForge these days.
It is ...
Have you tried Inkscape? It's free and seems to meet your requirements:
You cannot have anchored vertices, where one vertice of the first polygon automatically follows another vertice of the second polygon on translation
However, the vertices can be exactly aligned by each other with the snapping tools (see selected switches on the east toolbar)
You can ...
I like working with GIMP (GNU Image Manipulation Program). It meets all your requirements (not sure about auto incrementing file names) and it is free. You can see a short description here or on Wikipedia.
It might be a little bit too advanced, but that is up to you. It is very powerful and I personally managed to understand the interface pretty quickly.
Try TorchSoft ASCII Art Studio
works on Windows
supports shapes, tables
text mode for easy editing
conversion from picture to ASCII
it has a 30 day trial
single user license is 29.95 $
The closest MS Paint clone is Pinta. I regard it as vastly superior to MS Paint, but it retains its simplicity.
All of your needs can be founded easily. Just give it a try.
To install in Ubuntu:
sudo apt-get install pinta
For other Linux distro or whatever your OS choose your flavor from here: http://pinta-project.com/download.ashx
There is a compiz plugin for that, called "Annotate".
(The link at the end also provides alternatives to this answer)
Setup may look complicated - but chances are that you will have it actually at hand, already installed - and just need to know that.
There's a detailed guide for the setup:
ubuntu.SE: Drawing over the desktop.
This also contains guides to ...
Gromit mpx Is also a possible choice. It works quite well under X, but I couldn't get it to work on Wayland.
Drawing is really smooth and the lines can be customised. I am using it together with a Wacom Cintiq and am very satisfied with the results.
Based on the requirements that you give I would just use MS Paint. It has all the features you want and is extremely simple to use. Anything more versatile than Paint (like GIMP) quickly becomes complicated to use. If you are running Linux you can go for Gpaint which is extremely similar. I don't have experience with Mac, but I am sure some similar solution ...
Krita is an open source drawing application available for Windows, Mac and Linux.
drawing rectangle, ellipse, and polygons shapes (outline or filled)
fills can be colours, gradients or patterns/textures
drawing lines and curves
eyedropper, recently used colours, choice of 15 colour selectors
112 pen types, the 10 most common are available on ...
I would suggest taking a look at LibreOffice Draw:
Free & Open Source
Has its own clip art
Can import clip art/images to use those
Portable edition available so you can run from a USB key.
Since the graphic is isometric, it seems you don't need a too realistic drawing. In that case, I would use Inkscape. Inkscape it not a 3D tool, it's a 2D tool. But as you'll see you can get a 3D-like result.
Inkscape is gratis and creates vector graphics that have good quality and can be exported to pixel graphics.
Create a rectangle and single click it a ...
You can use Krita. Krita is a free sketching and painting program. It was designed for concept art, illustrations, and texture painting. You can see what features are Krita supports here. Krita is an open source software. It's available on Linux. You can check it out here.
Ardesia Sounds like it may work for you:
Thanks to Ardesia you are free to open any application and fix your ideas and comments as if you wrote on a classic chalkboard. You can use the tool to make effective on-screen presentation, highlight things or point out things of interest. The tool facilitates the online presentations and demos showing in real ...
You can create a Drawing type document on Google Drive:
It has a Lines and a Shapes menu. Under the first you can find Scribble which corresponds to freehand drawing, and under the second you can find common geometric shapes.
Supports both shapes and freehand drawings
Supports collaborations with revision history (through Google Drive)
Drawings are ...
Take a look at yEd - Graph Editor, either via Wikipedia , or via its Product Site. Here is a quote about it (from this last link):
yEd is a powerful desktop application that can be used to quickly and effectively generate high-quality diagrams.
Create diagrams manually, or import your external data for analysis. Our automatic layout algorithms arrange even ...
A long, long, long time ago, I've used an application TuxPaint. It's an extremely easy to use painting/drawing application designed for children and appears to have a very easy to use UI. It also has very large buttons so in regard to touch screens, this should be perfect. Some features you requested:
It's available on a wide variety of OS's including ...
As with so many things internet, it's all a matter of getting the right search terms. I used “unlimited canvas app iphone,” but then changed it to “infinite canvas app iphone.” The results are many and your decision will be based on how well you like the interface.
I played with one that appeared to be capable, easily understood for things like dragging ...