Features

JUMP Workbench

The JUMP Workbench is an extensible, interactive GUI for visualizing and manipulating spatial features with geometry and attributes.  It features a multiple task window interface.  Each task window can display multiple layers of data.  Data can be loaded and saved from a variety of spatial data formats, including GML and ESRI Shapefile.  Layers and features can be cut, copied and pasted between layers, tasks and JUMP instances. Features can be viewed and manipulated in both the spatial view and a tabular view.

The JUMP Workbench

Visualization

The JUMP Workbench allows multiple layers of data to be displayed.  Layers can be styled with a variety of depiction styles including fill and line colouring, line width, transparency, line decorators, and vertex display.  Colour-theming by attribute is supported by both discrete value and range.  Features can be labeled by attribute.  Labeling supports colour, size and rotation (with values either fixed or driven by attribute) and optional automatic conflict resolution.

Labeling by attribute, with conflict resolution

Colour-theming by attribute

Display of multiple linear datasets using colour and line decorators

Editing

JUMP allows creation and editing of all Geometry types.  Vertices can be added, moved, and deleted.  Geometries can be combined into collections, and collections can be exploded.  Components can be moved or deleted.  A user-definable grid is provided for ease of alignment.   Vertices can be snapped to the grid, other vertices or lines.  Geometries can be edited textually by changing their WKT representation.

Editing tools

WMS Client

JUMP can act as a client to OGC WMS-compliant servers.  An interactive interface is provided to create and edit WMS queries.  Any number of of server layers can be included in a query.  Any number of WMS queries can be defined and displayed in conjunction with other JUMP layers.

Feature data overlaid on orthophoto image obtained from WMS server

Spatial Analysis

JUMP provides various tools for performing spatial analysis.  These include:

• Layer Statistics displays totals of points, holes, components, area, length for multiple layers
• Feature Statistics displays total points, holes, components, area, length for each feature in layer 
• Measure Tool
• Compute Area and Length
• Overlay two datasets
• Union of geometries in dataset
• Compute Spatial Boolean operation on Geometries (intersection, union, difference, symmetric difference)
• Buffer geometries in dataset

Buffer and Union functions

Transformations and Warping

JUMP provides functions to Affine Transform and Warp datasets.  Affine Transforms are specified by drawing from one to three transformation vectors. 

Affine Transform using two transformation vectors

Warping uses a Bilinear Interpolated Triangulation algorithm to "rubber-sheet" a layer using any number of control vectors.  To aid in specifying warping vectors, warping can be performed in an incremental mode that allows visualizing the effects of adding individual warp vectors.

	Incremental warping of Roads dataset Before beginning warping process After placement of vectors

Geometry Validation

JUMP provides tools to perform QA on spatial datasets.  The tools include the following QA checks:

• Detect Invalid Geometry
• Detect Repeated Points
• Detect Short Segments
• Detect Small Angles
• Detect Disallowed Geometry Types

Geometry Validation, showing detection of invalid Geometry

JUMP Architecture

The JUMP architecture is modular, reusable, and customizable. Core functionality is exposed as APIs for easy use in other applications. Workbench GUI components can be used independently. The JUMP Workbench supplies a framework and API allowing GUI-based extensions to added seamlessly. 

The JUMP Workbench is designed to be highly modular, open and extensible.  New functionality can easily be added and has access to all Workbench components and functions.  In fact, most builtin Workbench functions are themselves implemented in terms of the extensibility framework.  The following are some of the features of the extensibility API:

• Plugin framework allows adding new menu functions
• Toolbox Plugins display as non-modal dialogs
• CursorTool Plugins receive mouse events and allow implementing new gestures
• DataSources for new spatial formats can be added
• Styles and Renderers can be added for new kinds of visualization
• Workbench Extensions are packaged as JAR files, which JUMP loads automatically

JUMP API

JUMP provides APIs exposing all core classes.  This allows spatial functionality to be easily incorporated in other standalone Java applications.  Core APIs include: