Using Virtual Earth to Visualize Fire Risk (Sept 2008)
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Transcript of Using Virtual Earth to Visualize Fire Risk (Sept 2008)
Virtual
Fire Risk
Earth
Visualizing
in
Dave Bouwman / GIS In the Rockies 2008
who is
guythis
Fort Collins ArcDeveloper Group
Fort Collins Alt.NET Group
min
ute
s
~
slides
demolive
10
FBPS 99 - Non-burnable, barren
FBPS 98 - Water
FBPS 97 - Non-burnable agriculture
FBPS 96 - Urban
FBPS 12 - Medium slash
FBPS 11 - Light slash
FBPS 10 - Timber (litter and understory)
FBPS 9 - Hardwood (long-needle pine) litter
FBPS 8 - Closed timber litter
FBPS 7 - Southern rough
FBPS 6 - Dormant brush, hardwood slash
FBPS 5 - Brush
FBPS 4 - Chaparral
FBPS 3 - Tall grass (2.5 ft.)
FBPS 2 - Timber (grass and understory)
FBPS 1 - Short grass (1 ft.)
Surface Fuels
11
1.000 - 1,000
0.600 - 0.999
0.400 - 0.599
0.291 - 0.399
0.200 - 0.290
0.100 - 0.199
0.050 - 0.099
0.025 - 0.049
0 - 0.024
Non-Burnable
Fires per 1000 acres per year
Fire Occurrence Areas
13
Non-Burnable
Low
Moderate
High
Wildfire Threat
ArcSDEspatial data
in
ServerArcGIS
Integration
userswant
non-technical
relevant
answers
these users understand
“Tools”
“Tasks?”
“Intuitive?”
right
tools
how
ServerArcGIS9.3
options
“baked in”tile caching
ArcGIS JavascriptExtension for Virtual Earth
only supports“fused” caches
pre-cache
onthe
fly
“other”tile caching
tile layer in virtual earth
Virtual Earth API
VETileLayer
quadkey parsing
sample code
Tile Server*
*2nd Prize in ESRI’s 2008
ArcGIS Server Code Challenge
• Opensource• Plug-in model• ArcGIS Server• ArcIMS• Any WMS Server
Layer1
Layer2
Layer3
Layer4
Layer5
TileService Map Server
Layer1
Layer2
Layer3
Layer4
Layer5
TileService Map Server
why wms
?Layers=…
Spatial =Slow(er)
tables = FAST
stored procedure
Select * from FIREPOINTS wherePOINT_X > LONMIN and POINT_X < LONMAX andPOINT_Y > LATMIN andPOINT_Y < LATMAX
Clustering
{"ClusteredPointLocationIds":[3,5,31],"PointLocationId":3,"IsClustered":true," MarkerClass":firepin,Location":{"Lat":-2.15,"Lon":-80.53}
}
GetPoints GetPointsbbox
Cluster
Json
script service (asmx)javascript
geogeeks
simple tools
complex questions
Questions