Gri is a language for scientific graphics applications. By 'language' I mean
that it is a command-driven application, as opposed to a click/point
application. It is analogous to latex or tex, and shares the property that
extensive power is the reward for tolerating a modest learning curve. Gri
output is in industry-standard PostScript, suitable for incorporation in
documents prepared by various text processors. Gri can make x-y graphs,
contour-graphs, and image graphs. In addition to high-level capabilities, it
has enough low-level capabilities to allow users to achieve a high degree of
customization. Precise control is extended to all aspects of drawing, including
line-widths, colors, and fonts. Text includes a subset of the tex language, so
that it is easy to incorporate Greek letters and mathematical symbols in labels.
KmPlot is a program to draw graphs, their integrals or derivatives. It
supports different systems of coordinates like the cartesian or the
polar coordinate system. The graphs can be colorized and the view is
scalable, so that you are able to zoom to the level you need.
Features:
- Powerful mathematical parser.
- Precise metric printing.
- Different plot types: cartesian, parametric, polar, implicit,
differential.
- Highly configurable visual settings (plot line, axes, grid).
- Export to bitmap format (BMP and PNG) and scalable vector graphics
(SVG).
- Save/load complete session in readable XML format.
- Trace mode: cross hair following plot, coordinates shown in the
status bar.
- Supports zooming.
- Ability to draw the 1st and 2nd derivative and the integral of a
plot function.
- Supports user defined constants and parameter values.
- Various tools for plot functions:
- Find minimum/maximum point.
- Get y-value and draw the area between the function and the y-axis.
The Visualization Toolkit (VTK) is an open-source, freely available software
system for 3D computer graphics, image processing and visualization. VTK
consists of a C++ class library and several interpreted interface layers
including Tcl/Tk, Java, and Python. Kitware, whose team created and continues
to extend the toolkit, offers professional support and consulting services for
VTK. VTK supports a wide variety of visualization algorithms including: scalar,
vector, tensor, texture, and volumetric methods; and advanced modeling
techniques such as: implicit modeling, polygon reduction, mesh smoothing,
cutting, contouring, and Delaunay triangulation. VTK has an extensive
information visualization framework, has a suite of 3D interaction widgets,
supports parallel processing, and integrates with various databases on GUI
toolkits such as Qt and Tk.
ReportLab is a software library that lets you directly create
documents in Adobe's Portabe Document Format (PDF) using the Python
programming language.
The ReportLab library directly creates PDF based on your graphics
commands. There are no intervening steps. Your applications can
generate reports extremely fast - sometimes orders of magnitude
faster than traditional report-writing tools.
The ReportLab library is expected to be useful in at least the
following contexts:
- Dynamic PDF generation on the web
- High-volume corporate reporting and database publishing
- An embeddable print engine for other applications, including
a 'report language' so that users can customize their own reports.
- A 'build system' for complex documents with charts, tables
and text such as management accounts, statistical reports and
scientific papers
- Going from XML to PDF in one step!
ReportLab is a software library that lets you directly create
documents in Adobe's Portabe Document Format (PDF) using the Python
programming language.
The ReportLab library directly creates PDF based on your graphics
commands. There are no intervening steps. Your applications can
generate reports extremely fast - sometimes orders of magnitude
faster than traditional report-writing tools.
The ReportLab library is expected to be useful in at least the
following contexts:
- Dynamic PDF generation on the web
- High-volume corporate reporting and database publishing
- An embeddable print engine for other applications, including
a 'report language' so that users can customize their own reports.
- A 'build system' for complex documents with charts, tables
and text such as management accounts, statistical reports and
scientific papers
- Going from XML to PDF in one step!
ReportLab is a software library that lets you directly create
documents in Adobe's Portabe Document Format (PDF) using the Python
programming language.
The ReportLab library directly creates PDF based on your graphics
commands. There are no intervening steps. Your applications can
generate reports extremely fast - sometimes orders of magnitude
faster than traditional report-writing tools.
The ReportLab library is expected to be useful in at least the
following contexts:
- Dynamic PDF generation on the web
- High-volume corporate reporting and database publishing
- An embeddable print engine for other applications, including
a 'report language' so that users can customize their own reports.
- A 'build system' for complex documents with charts, tables
and text such as management accounts, statistical reports and
scientific papers
- Going from XML to PDF in one step!
Kst is a fast real-time large-dataset viewing and plotting tool
with basic data analysis functionality. Kst contains many powerful
built-in features and is expandable with plugins and extensions.
Features of Kst include:
- Robust plotting of live "streaming" data.
- Powerful keyboard and mouse plot manipulation.
- Large selection of built-in plotting and data manipulation functions,
such as histograms, equations, and power spectra.
- Color mapping and contour mapping capabilities for three-dimensional
data, as well as matrix and image support.
- Monitoring of events and notifications support.
- Built-in filtering and curve fitting capabilities.
- Convenient command-line interface.
- Powerful graphical user interface.
- Support for several popular data formats.
- Extended annotation objects similar to vector graphics applications.
This port provide Kst 2, which is based on Qt4. It still lacks scripting
support and backward compatibility with Kst 1.x series (you can't open
kst-1 files in Kst 2).
SCIM Input-Pad is an on-screen input pad that can be used to input symbols
and key events very easily. It works with the SCIM input method platform.
SCIM Input-Pad comes with predefined files for common symbols, some special
keyboard events (such as dead keys and composing keys), punctuation technical
and graphics signs (including Braille alphabet), and many languages: Arabian,
Armenian, Balinese, Bengali, Buginese, Buhid, Cham, Chinese, Devanagari,
Ethiopic, Georgian, Gujarati, Gurmukhi, Hanunoo, Hebrew, Japanese, Kannada,
Kaya Li, Khmer, Korean, Lao, Lepcha, Limbu, Malayalam, Mongolian, Myanmar,
New Tai Lue, Ol Chiki, Oriya, Rejang, Russian (with all Cyrillic languages),
Saurashtra, Sinhala, Sundanese, Syloti Nagri, Tagalog, Tai Le, Tamil, Telugu,
Thai and Tibetian. It also provides an easy access to all Latin-based scripts.
Protovis - A Graphical Toolkit for Data Visualization
Protovis composes custom views of data with simple marks such as bars and dots.
Unlike low-level graphics libraries that quickly become tedious for
visualization, Protovis defines marks through dynamic properties that encode
data, allowing inheritance, scales and layouts to simplify construction.
Protovis is free and open-source, provided under the BSD License. It uses
JavaScript and SVG for web-native visualizations; no plugin required (though you
will need a modern web browser)! Although programming experience is helpful,
Protovis is mostly declarative and designed to be learned by example.
This project is led by Mike Bostock and Jeff Heer of the Stanford Visualization
Group, with significant help from Vadim Ogievetsky. We welcome your
contributions and suggestions.
Font::TTFMetrics encapsulates the font metrics of a true type font file. A
true type font file contains several tables which need to be parsed before
any useful information could be gathered about the font. There is the
excellent module for parsing TTF font in CPAN by Martin Hosken, Font::TTF.
But in my opinion the use of Font::TTF requires intimate knowledge of TTF
font format. This module was written to support the use of TTF in Pastel
2D graphics library in Perl. Three factors prompted me to write this
module: first, I required a fast module to access TTF file. Second, all
the access required was read-only. Last, I wanted a user friendly, higher
level API to access TTF file.