Spring > English > Manuals > Description

SPRING presents a set of new algorithms and procedures from research projects at INPE and its partners.

Periodically INPE releases new versions with improvements and corrections. We suggest you check our homepage for updates.

User Interface

  • Menu-driven interface, presenting a unified environment for geographical data types;
  • Context driven menus;
  • LEGAL Map Algebra Language;
  • Available in the following languages: Portuguese, English and Spanish.

Image Processing
  • LANDSAT, SPOT, ERS-1 and NOAA/AVHRR Data input;
  • Registration and Geometric Correction;
  • Image Mosaic with gray level equalization;
  • Image Enhancement by Histogram Manipulation;
  • Spatial Filtering;
  • IHS and Principal Components Transformations;
  • Arithmetical Operations;
  • Pixel Values Reading;
  • Maximum-likelihood pixel-based classifier;
  • Image Segmentation and Region Classifiers (Supervised and Unsupervised);
  • LANDSAT and SPOT Images Restoration;
  • Morphological Filters for Images;
  • Mixture Models;
  • Markov-based Techniques for Image Post-Classification;
  • Radar Image Processing.

Geographical Analysis (Thematic Maps)
  • Digitizing, Editing and Topology Creation;
  • Raster to Vector and Vector to Raster Conversion;
  • Mosaic;
  • Buffering;
  • Cross Tabulation;
  • Geographical Analysis using the LEGAL Language: Reclassification, Weighting, Slicing, Boolean Operations, Continuous Classification and Zonal Operators;
  • Spatial Statistics with Univaried Analysis of Points;
  • Kernel Estimation;
  • Decision Support (AHP method);
  • Geostatistics - Linear Kriging; Indicator Kriging and Indicator Simulation;
  • Localization Analysis using the P-Median Method.
  • Overlay of vector infolayers.

Digital Terrain Modeling
  • Sample Points, Contour Lines and Breaklines Digitizing;
  • Line Smoothing;
  • Label Placement;
  • Rectangular Grid Generation;
  • Triangular Grid (TIN) Generation, with breaklines;
  • Image Generation;
  • Contour Lines Generation;
  • Slope and Aspect Maps;
  • DTM Slicing;
  • 3D Viewing;
  • Profile and Volume Computation;
  • Hilltop Extraction;
  • Buffering;
  • Hydrological Process:
       - Grid Generation;
       - Drainage Network;
       - Flooding Region.

Network Modeling
  • Digitizing of lines and nodes of a network;
  • Network Modeling - Association with objects and definition of impedance and demands;
  • Short Path Calculation;
  • Resources Allocation;
  • Localization Analysis - P-Median; (with support of LAC-INPE and UNESP/FEG )
  • Address Geocoding



Querying to Relational Databases (Cadastral Maps)
    SPRING presents a new spatial querying similar to those of desktop mapping systems, allowing:
  • Table and Attribute Definition Using Relational Databases;
  • Query by Spatial Attributes and Display;
  • Geographical Objects Grouping by Attributes;
  • Generation of Graphics (histogram, pie charts) with Attributes Distribution;
  • The display of the relational table contents with geo-objects attributes;
  • Connection between the table contents with the spatial location of the objects;
  • Creation of graphics containing the distribution of two related attributes;
  • Support to the xBASE, ACCESS and ORACLE standards.

Chart Generation
  • Interactive environment (WYSIWYG) for maps with symbol, legend and text positioning control;
  • Symbol Library using DXF Format;
  • Paper configuration for A0, A1, A2, A3 and A4 sizes;
  • Support for HPGL/2 and Postscript Devices.

Data Interchange
  • Import:
      - Vector : ARC/INFO (ungenerate), ASCII-SPRING, DXF-R12 and ShapeFile
      - Grid DTM : ARC/INFO (ungenerate) and ASCII-SPRING
      - Thematic Image : ARC/INFO (ungenerate) and ASCII-SPRING
      - Images : RAW, TIFF, SITIM, JPEG and GeoTIFF
      - Tables : ASCII-SPRING and DBF
  • Converters for ASCII-SPRING:
       - MID/MIF (Mapinfo), ShapFile (archive) e E00 (ArcInfo);
  • Export:
       - Vector : ARC/INFO (ungenerate), ASCII-SPRING, DXF-R12, ShapeFile and E00
       - Grid DTM : ARC/INFO (ungenerate) and ASCII-SPRING
       - Thematic Image : ARC/INFO (ungenerate) and ASCII-SPRING
       - Images : RAW, TIFF, JPEG e GeoTIFF
       - Tables : SPACESTAT e ASCII-SPRING

Map Management
  • Support to 14 Cartographical Projections;
  • Vector and Image Mosaic;
  • Data Conversion Between Projections;
  • Label Placement (texts) over any infolayer belonging to any of the data models types;
  • Vector Registration;
  • Clean Vectors - delete doubled lines, polygons and elements smaller than the dimensions provided by the user; automatic breaking in lines intersection;
  • Points Generation - conversion from thematic maps (points and polygons) or cadastral maps (points and polygons with attributes) to thematic points maps (2D points) or DTM maps (3D samples).

Help On-line
  • Help in the HTML format - it operates only with the Internet Explorer browser for the Windows version and with the Netscape browser for the UNIX versions.
  • "How to begin?" tutorial for beginners;
  • Tutorial in 10 classes focusing the main functions in SPRING;
  • Availability:
    - Portuguese Interface - Help in Portuguese
    - English Interface - Help in Spanish
    - Spanish Interface - Help in Spanish

Multi-plataform (UNIX and Windows)
  • SUN Solaris 2.5 or later;
  • IBM-PC with Linux;
  • Windows 95/98/ME;
  • Windows NT/2000/XP.

Copyright 2002 SPRING - DPI/INPE