Nevron Diagram for Q1 2008 Released
The product has been designed from the ground up to meet a vast number
of customization and extensibility requests. Built on top of the solid
Model - View - Controller architecture it will provide your
applications with consistent, intelligent and powerful diagramming
abilities. Nevron Diagram for .NET is a unique component, since it
integrates state-of-art vector and raster 2D graphics technologies and
wraps them in an easy to use - yet completely customizable framework.
As a result your applications can easily reuse it to instantly gain
significant advantage in visual impact and intelligence. Following is
a list of the new features introduced in this release:
Support for inwardoutward port connections.
In this release we have implemented support for inward-outward ports.
This feature lets you interactively glue an outward port to inward
port. When an outward port of a shape is connected to an inward port,
the shape will translate and rotate together with the shape owning the
inward port. The translation aims to match the outward port location
to the inward port location. The rotation aims to match both ports
direction angles. For each type of port we have provided an extensive
set of predefined modes in which a port can automatically determine
its direction angle. Custom (user specified) direction angles are
supported by all ports. This feature is extremely useful for
interactive construction of connected shapes structures without edges.
For example: in a floor plan diagram you can have a table with 4
inwards ports designated for the possible places where chairs can be
placed. Chairs can have a single outward port. The placement of the
chairs around the table is then a matter of simple drag and drop
Nevron Diagram will perform the snapping and glueing of the chairs to
the table for you. When you move, rotate or resize the table the
chairs will stay on their places.
Powerful support for graph, tree and cells layouts.
In this release we have added enterprise quality support for automatic
layouts. The layouts are generally grouped in the following
categories:
Graph Layouts perform automatic arrangement of graph vertices and
edges. Included the following layouts:
- Force Directed Layouts - barycenter, spring and symmetrical. The
implementation provides supports for lots of supplemental data
provided on per edge and vertex basis. It addresses issues like
magnetic fields, gravity force and vertex overlapping. The performance
is significantly optimized due to the use of local temperatures. The
overall quality of drawing is also improved because of the used global
cooling method. It is suitable for any type of graph. Produces
straight line graph drawings.
- Layered Graph Layout represents a classical implementation, which
layouts a graph in layers. The layout addresses issues like crossing
and bending minimization. It is suitable for any type of graph.
Produces polyline graph drawings.
- Orthogonal Graph Layout represents a layout, which draws a graph
only with horizontal or vertical line segments. The layout addresses
issues like crossing minimization, bends minimization and overall
compactness of the drawing. It is suitable for any type of graph.
Produces orthogonal graph drawings.
- Radial Graph Layout - represents a layout, which draws a graph in
radial circles. It is suitable for any type of graph. Produces
straight line graph drawings.
Tree Layouts perform automatic arrangement of tree vertices and
edges
- Layered Tree Layout layouts a tree in layers. The layout addresses
the breadth compaction of the drawing. Produces straight line and
orthogonal tree drawings.
- Compact Depth Tree Layout layouts a tree with minimal depth. The
layout also addresses the breadth compaction of the drawing. Produces
straight line and orthogonal tree drawings.
- Tip Over Tree Layout - layouts a tree by placing children in either
a row or a col. The row column children placement is controlled on a
per vertex basis. Addresses the overall compaction of the drawing.
Produces orthogonal tree drawings.
- Balloon Tree Layout layouts the tree in by placing the vertex
children in a circular fashion. Addresses the overall compaction of
the drawing. Produces straight line tree drawings.
Cell Layouts perform automatic arrangement of the vertices of a
graph
- Stack Layout - represents a directed constrained cells layout, which
stacks the cells in horizontal or vertical order. Depending on the
layout direction the layout is constrained by either width or height.
- Flow Layout - represents a directed constrained cells layout, which
arranges the cells in horizontal or vertical lanes.
- Dock Layout represents space eating cells layout, which places
vertices at per-vertex specified docking areas of the currently
available layout area. Table Layout - represents a directed
constrained cells layout, which arranges cells in a tabular manner.
Dynamic image map in AJAX mode
In Q1 2008 Nevron web components now support a dynamic image map that
can be automatically updated at the client on every callback. The
developer has control over when the image map is generated when is and
updated on the client. The dynamic image map allows client side
filtering of mouse events and prevents unnecessary callbacks for
server side hit testing.
Controller-Tools Architecture in AJAX mode
Controller and tools are added to the Nevron client side JavaScript
framework. All mouse events are now processed by the controller, which
allows for implementing complex mouse handling logic and combining
callback event processing with pure client side event processing.
New AJAX tools
Based on the controller-tools architecture, the following tools were
added: - Click, double click, mouse down, mouse up, mouse move, mouse
over and mouse out callback tools intercept the mouse events and
route them to the server for processing; - Dynamic cursor tool
changes the mouse cursor over interactive visual elements; - Redirect
tool redirects the browser to a specified URL when interactive visual
elements are clicked; - Tooltip tool displays tooltips over
interactive visual elements.
Print Manager for Web Forms
None of the most popular web browsers is capable of printing really
large images. Nevron .NET Vision Q1 2008 introduces a new HTTP handler
that generates HTML, suitable for printing.
Future Improvements
The following list includes the improvements currently being developed
in Nevron Diagram. Since they are beyond the scope of a single
quarterly release, they will be embedded in the diagram when
completely tested and implemented.
- Pages
The diagram component will support pages. Each page will support
different logical and display units, layers etc. The page will be
controlled by a formula sheet.
- Formula Shapes
Nevron diagram will support formula shapes. More details on this
feature will be published additionally.
System / Platform Requirements
- 32-bit Windows Operating System (WIN 95, WIN 98, NT4.0, Win2000,
Win2003 or WinXP) with installed .NET framework 1.0 or 2.0. Note that
the WebForms control will work only on machines with installed IIS
(Internet Information Services).
- 256 megabytes of RAM (128 or higher megabytes recommended)
- 250 MB hard disc space.
- Super VGA video card or higher. Graphics hardware acceleration
recommended for WinForms applications.
- Visual Studio .NET
Visit http://www.nevron.com
date: Thu, 29 May 2008 07:18:32 -0700 (PDT)
author: unknown
