View In:
ArcGIS Online Map Viewer
Name: Building Footprints
Display Field: nbrfloors
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Planimetric Building Footprint features. In 2006, the Des Moines Regional GIS group contracted with Sanborn to digitize the planimetric features utilizing 3D stereo digitizing methods and GIS processing required under the RFP. The Program Management task included coordination and oversight of the NewCom Technology tasks; incorporating the imagery and photogrammetric data from the spring of 2006 flight, stereo digitizing the planimetric features and GIS processing of the impervious surface features to ensure clean topological data structure for subsequent area / polygon calculations. Maintainenance of the data includes heads-up digitizing using the orthophoto images.</SPAN></P><P><SPAN>Building Height and Base Elevation calcuated from Iowa Lidar.</SPAN></P><OL><LI><P><SPAN>Downloaded Iowa Lidar for the Des Moines area from GeoTree (</SPAN><A href="http://geotree2.geog.uni.edu/Lidar/iowa_lidar_metadata.html"><SPAN>http://geotree2.geog.uni.edu/Lidar/iowa_lidar_metadata.html</SPAN></A><SPAN>). Units of measure in meters.</SPAN></P></LI><LI><P><SPAN>Created a LAS Dataset using ESRI tools (</SPAN><A href="http://resources.arcgis.com/en/help/main/10.2/index.html"><SPAN>http://resources.arcgis.com/en/help/main/10.2/index.html#//015w0000004q000000</SPAN></A><SPAN>)</SPAN></P></LI><LI><P><SPAN>Used ArcMap to create layer files for Buildings and Bare Earth from the LAS Dataset.</SPAN></P></LI><LI><P><SPAN>Created raster files for Buildings (Unassigned filter values) and Bare Earth (Ground filter values) using LAS Dataset to Raster.</SPAN></P></LI><LI><P><SPAN>Created Random points for buildings using PLMBuildingFootprints as the Constraining Features for the Building Elevations with 100 points per feature with a minimum allowable distance of 1. (</SPAN><A href="http://resources.arcgis.com/en/help/main/10.2/index.html"><SPAN>http://resources.arcgis.com/en/help/main/10.2/index.html#/Obtaining_elevation_information_for_building_footprints/00q80000007n000000/</SPAN></A><SPAN>)</SPAN></P></LI><LI><P><SPAN>Used Add Surface Information tool and added the elevation information to the building points from the building elevation raster layer.</SPAN></P></LI><LI><P><SPAN>Used Summary Statistics tool and, based on the Fire Marshal’s advice, selected Maximum for the Statistic Type with CID as the Case field.</SPAN></P></LI><LI><P><SPAN>Buffered the PLMBuildingFootprints layer by 1 meter.</SPAN></P></LI><LI><P><SPAN>Created Random points for the buffered areas using the buffered areas as the Constraining Features for the Bare Earth Elevations with 100 points per feature with a minimum allowable distance of 1.</SPAN></P></LI><LI><P><SPAN>Used Add Surface Information tool and added the elevation information to the buffered area points from the Bare Earth raster layer.</SPAN></P></LI><LI><P><SPAN>Used Summary Statistics tool and selected Minimum for the Statistic Type with CID as the Case field.</SPAN></P></LI><LI><P><SPAN>Joined the buffered area summary information back to the buffered polygon feature class using CID to ObjectID.</SPAN></P></LI><LI><P><SPAN>Calculated the BaseElevFt field with MIN_Z field and then removed the join.</SPAN></P></LI><LI><P><SPAN>Joined the buffered polygon feature class to PLMBuildingFootprints using Org_ID field to ObjectID.</SPAN></P></LI><LI><P><SPAN>Selected all records where the buffered polygon feature class BaseElevFt field was not Null.</SPAN></P></LI><LI><P><SPAN>Calculated the PLMBuildingFootprints BaseElevFt field with the buffered polygon feature class BaseElevFt field and then removed the join.</SPAN></P></LI><LI><P><SPAN>Joined building summary information back to the PLMBuildingFootprints using CID to ObjectID.</SPAN></P></LI><LI><P><SPAN>Selected all records where the MAX_Z fields was not Null.</SPAN></P></LI><LI><P><SPAN>Calculated the BuildingHeightFt field by subtracting the MAX_Z field from the BaseElevFt field and removed the join.</SPAN></P></LI><LI><P><SPAN>Multiplied BuildingHeightFt and BaseElevFt fields by 3.28084 to convert the values from meters to feet.</SPAN></P></LI><LI><P><SPAN>For Building Footprints within Residential or Agricultural parcels, the building elevation values were resummarized using the Mean elevation value instead of Maximum as stated in step 7.</SPAN></P></LI><LI><P><SPAN>Compared values against Control Points and Benchmarks maintained by Des Moines Survey staff and to the Polk County Pictometry data.</SPAN></P></LI></OL></DIV></DIV></DIV>
Service Item Id: 854912e923074161a86c2dc50a254ebe
Copyright Text: Des Moines Area Regional GIS Partnership
Default Visibility: true
MaxRecordCount: 2000
Supported Query Formats: JSON, geoJSON, PBF
Min Scale: 0
Max Scale: 0
Supports Advanced Queries: true
Supports Statistics: true
Can Scale Symbols: false
Use Standardized Queries: true
Supports ValidateSQL: true
Supports Calculate: true
Extent:
XMin: 1534849.8280824125
YMin: 422889.0484111458
XMax: 1687723.1224008352
YMax: 680568.7800979018
Spatial Reference: 102676
(3418)
Drawing Info:
Renderer:
Simple Renderer:
Symbol: Style: esriSFSSolid
Color:
[204, 222, 252, 255]
Outline:
Style: esriSLSSolid
Color:
[110, 110, 110, 255]
Width: 0
Label: N/A
Description: N/A
Transparency: 0
Labeling Info:
Advanced Query Capabilities:
Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: false
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: true
Supports Returning Geometry Centroid: false
Supports Binning LOD: true
Supports Query With LOD Spatial Reference: true
HasZ: false
HasM: false
Has Attachments: false
HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText
Type ID Field:
Fields:
-
objectid
(
nullable: false, defaultValue: null, editable: false, length: 4, type: esriFieldTypeOID, modelName: System-maintained ObjectID, alias: OBJECTID
)
-
featuretype
(
modelName: FeatureType, nullable: true, editable: true, defaultValue: null, length: 30, alias: FeatureType, type: esriFieldTypeString
,
Coded Values:
[Mobile-Home: Mobile Home]
,
[Structure-Main Building: Structure Main Building]
,
[Structure-Out Building: Structure Out Building]
, ...2 more...
)
-
buildingclass
(
modelName: BuildingClass, nullable: true, editable: true, defaultValue: 1, alias: Building Class, type: esriFieldTypeSmallInteger
,
Coded Values:
[1: General]
,
[2: Government]
,
[3: Medical]
, ...10 more...
)
-
nbrfloors
(
modelName: NbrFloors, nullable: true, editable: true, defaultValue: null, alias: NbrFloors, type: esriFieldTypeInteger
)
-
buildingheightft
(
modelName: BuildingHeightFt, nullable: true, editable: true, defaultValue: null, alias: BuildingHeightFt, type: esriFieldTypeDouble
)
-
baseelevft
(
modelName: BaseElevFt, nullable: true, editable: true, defaultValue: null, alias: BaseElevFt, type: esriFieldTypeDouble
)
-
city
(
modelName: City, nullable: true, editable: true, defaultValue: null, length: 50, alias: City, type: esriFieldTypeString
,
Coded Values:
[Ackworth: Ackworth]
,
[Adel: Adel]
,
[Albion: Albion]
, ...214 more...
)
-
updt
(
modelName: Updt, nullable: true, editable: true, defaultValue: null, length: 29, alias: last_edited_date, type: esriFieldTypeDate
)
-
upid
(
modelName: Upid, nullable: true, editable: true, defaultValue: null, length: 128, alias: last_edited_user, type: esriFieldTypeString
)
-
globalid
(
nullable: false, editable: false, defaultValue: null, length: 38, type: esriFieldTypeGlobalID, modelName: GlobalID, alias: GlobalID
)
-
SHAPE__Length
(
virtual: true, nullable: true, editable: false, defaultValue: null, alias: SHAPE__Length, type: esriFieldTypeDouble
)
-
SHAPE__Area
(
virtual: true, nullable: true, editable: false, defaultValue: null, alias: SHAPE__Area, type: esriFieldTypeDouble
)
Templates:
-
Name: Building Footprints
Description:
Prototype:
upid: null
nbrfloors: null
baseelevft: null
city: null
featuretype: null
buildingheightft: null
buildingclass: 1
updt: null
Drawing Tool: esriFeatureEditToolPolygon
Capabilities: Query,Extract
Sync Can Return Changes: true
Is Data Versioned: false
Supports Rollback On Failure: true
Supports ApplyEdits With Global Ids: true
Supports ApplyEdits By Upload Id: true
Supports Query With Historic Moment: false
Supports Coordinates Quantization: true
Supported Operations:
Query
Query Attachments
Calculate
Validate SQL
Generate Renderer
Return Updates
Metadata