617-876-8085 gis-enabled modeling and simulation (gems) · complete cgf terrain subsystem 3d...

©MÄK Technologies, Inc.

GISGIS--EnabledEnabledModeling and SimulationModeling and Simulation

(GEMS)(GEMS)10 January 200710 January 2007

Tom Stanzione & Kevin [email protected], [email protected]

[email protected]

Paper # 1015


OverviewOverview

ObjectivesTechnical ChallengesTerrain Subsystem

Requirements AnalysisDesignPrototype

MÄK GIS-LinkConclusions and Future Work


SponsorSponsor

This work is funded by the US Army Topographic Engineering Center, Ft. Belvoir, VAGovernment POC

Dave Lashlee(703) [email protected]

Contract # W9132V-06-C-0018


ObjectivesObjectives

Enable modeling, simulation, and visualization systems to operate directly on GIS-based terrainEliminate need to for time-consuming and expensive conversion to specialized formatsUse same data used in operational C4ISR systems (C/JMTK)Enable mission planning, mission rehearsal, and predictive situation awareness


Terrain Generation for M&STerrain Generation for M&SCurrent PracticeCurrent Practice


GISGIS--Enabled M&SEnabled M&S


System Components to be DevelopedSystem Components to be Developed


Development ItemsDevelopment Items

ArcGIS/ArcObjects-based Terrain SubsystemAPIs to terrain data for CGF systemsCaching mechanismsAPIs to terrain data for 3D visualization (Option)APIs to analysis routines (Option)Dynamic terrain capabilities (Option)

MÄK GIS-LinkHLA, DIS, and TENA data display on C/JMTK displaysGIS data to simulations

Dynamic terrain, analytics, semantic information


Technical ChallengesTechnical Challenges

Overcoming performance bottlenecksESRI ArcGlobe already performs fly-thrus of GIS dataCachingMore performance enhancements coming

ArcGlobe ServerArcGIS Dynamic DisplayHaving ESRI as subcontractor will facilitate this

Access to analytical routinesAPI definitionTime delays that may arise


Terrain Subsystem TasksTerrain Subsystem Tasks

1. Work with TEC to develop requirements2. Develop a system and software design for

year 1 development3. Implement terrain subsystem for CGF and

2D viewer applications4. Integrate and test terrain subsystem with

VR-Forces


Requirements AnalysisRequirements Analysis

M&S terrain dataElevationFeatures

GIS terrain dataExisting C4ISR data setsGeodatabase schemasTheater Geospatial Database (TGD)

Interfaces for M&S dataVR-Forces, OneSAF Testbed, Delta 3D


CGF Terrain DatabasesCGF Terrain Databases2D Visualization

Abstract representation (maps)Realistic representation (imagery)

ReasoningGeometry and attribution of elevation and features

Data structures in memoryUses:

Vehicle placementMovement algorithms

Path planningObstacle avoidanceVehicle dynamics

Line of sightTargetingCommunications


CGF Terrain DatabasesCGF Terrain DatabasesTerrain Skin

Grid or TIN of elevation valuesMay or may not be stored as polygons

Attributes“Soil Type”

WaterMobility Characteristics

FeaturesPoint, Lines, AreasAttributes

Width, height, type, …3D Models

Typically associated with point featuresBuilding models

Varied fidelityOverturned shoe boxes to complex structures with interior details

Spatial organizationFind all terrain information around a location quicklyGrid-basedHierarchical

Quad trees


GIS Terrain DataGIS Terrain DataElevation Data

RasterTriangulated Irregular Network (TIN)Terrain Feature Class (GeoDB)Polygon Z Feature Class (GeoDB)

Feature DataShape FilesMulti Patch (GeoDB)Polygon, Polyline, Point Feature Datasets (GeoDB)

GeodatabasePersonalFile


System and Software DesignSystem and Software Design

System level component designsInterface designFunctional and performance characteristicsPerformance improvementsCaching mechanisms


GIS GIS vsvs GDB PerformanceGDB PerformanceThree main terrain calls:

ClosestIntersection – ElevationIntersect (1) – Horizontal LOSIntersect (2) – Vertical surfaces intersection

Scenario10 moving ground vehicles, 3 moving amphibious vehicles, 1 moving surface vehicle, 4 moving air vehicles and 16 non moving target vehicles

Average length of time in each call (microseconds)

GDB w/ soil type

TIN Raster TIN w/ soil type

ClosestIntersection

37 94 25 298

Intersect (1)

54 705 2006 N/A

Intersect (2)

62 407 691 N/A


Software ImplementationSoftware Implementation

Tools to populate a geodatabase for CGFsDeveloping prototype API for CGF

Elevation from TINLOS thru TIN and buildings

Modifying VR-Forces to use APIESRI Terrain subclass using ArcObjectsESRI Coordinate System subclass using ArcObjects


VRVR--Forces using GIS TerrainForces using GIS Terrain

ArcMap

MÄK GIS-Link VRF Toolbar

ArcMap VR-ForcesSimulation Engine

PhysicalWorld

Terrain

ESRITerrain

CoordinateSystem

ESRICoordinate

System

GIS DataTINMulti-PatchPolygonDIS


VRVR--Forces using GIS Terrain Forces using GIS Terrain DemonstrationDemonstration


MMÄÄK GISK GIS--LinkLinkProvides underlying components to enable ArcGIS-based applications to connect to HLA/DIS/TENA exercise & visualize real-time data

ArcMap rapidly updating symbologyArcGlobe dynamic 3D models

Comprised of underlying ArcObjects that easily integrate with other ArcGIS Engine componentsUtilizes dynamic display capabilities in ArcGIS 9.2


MMÄÄK GISK GIS--Link...ContinuedLink...Continued

Supply building blocks to …Support HLA/DIS/TENA simulation interoperability standardsEnable visualization of simulation specific objects & interactionsProvide higher-level GUI components for viewing & configuring simulation specific functionality

C/JMTK & ArcGIS conformant way to easily incorporate HLA, DIS, or TENA data


MMÄÄK GISK GIS--Link ProductLink Product

Available in 3 formsExtension for ArcMap (Map-Link), Extension for ArcGlobe (Globe-Link), &ArcObjects available for use with other ArcGIS Engine components

Comprised ofArcObjects that wrap VR-Link functionalityArcObjects for GUI components & display capabilitiesArcMap & ArcGlobe extension toolbars


Current StatusCurrent Status

ArcMap release candidateConnect to DIS, HLA 1.3, HLA 1516, or TENA exerciseDefine layers, either manually or automaticallyDisplay entities and aggregates using MOLE symbologyDisplay fire & detonate interactionsDisplay target-to-shooter linesDialogs for

Entities by layerSimulation-specific attributesEntity specific informationAggregate specific information


Current StatusCurrent Status

ArcGlobe release candidateDisplay entities as OpenFlight modelsDisplay fire and detonate interactions as animated sequencesDisplay target-to-shooter linesSupport attach modes to entities

CompassMimic

Support ArcGlobe “identify” tool


MapMap--Link PrototypeLink Prototype


ConclusionsConclusions

Early prototyping suggests feasibility of GIS terrain for M&SM&S using operational data facilitates embedded training in C4ISR systemsCan still benefit from high fidelity M&S terrain databases

Convert to GIS formats as neededUse automated content generation from terrain database generation systems

MÄK GIS-Link provides interoperability between C4ISR and M&S domains


Future WorkFuture Work

Complete CGF Terrain Subsystem3D Visualization Capabilities

Extend terrain subsystemBrowser-based Visualization Capabilities

Extend GIS-Link for GIS serversAccess to GIS-based Analytics and Terrain Reasoning

Extend terrain subsystem APIDevelop framework

Dynamic TerrainExtend terrain subsystem and GIS-LinkData management and distribution

617-876-8085 gis-enabled modeling and simulation (gems) · complete cgf terrain subsystem 3d...

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