Name: Impervious Area

Display Field: Class

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Impervious surfaces for San Marcos, TX mapped from 2017 high-resolution aerial imagery. Impervious surfaces of two types were mapped: (1) buildings, (2) other paved surfaces. Buildings consist of structures with a height of at least 8 feet. Other paved surfaces consist of all other impervious features and highly compacted soils. Examples include roads, driveways, and parking lots. Care was taken to not include pervious features that are spectrally similar to impervious features, such as gravel beds.Impervious surfaces were mapped using a semi-automated approach. Object-based image analysis (OBIA) techniques were used to automatically extract impervious surfaces, then these features were manually reviewed and edited at a scale of 1:500.The purpose of this project was to map impervious surfaces to support calculating per-parcel impervious metrics. As such, greater effort was put forth in reviewing and editing impervious surfaces that fall within parcels as opposed to those in the right-of-way (ROW).

Copyright Text: Sanborn Map Company, Inc.

Default Visibility: true

MaxRecordCount: 1000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: 2261028.570318222
YMin: 1.3813063411772728E7
XMax: 2354723.66704838
YMax: 1.3902017777498811E7
Spatial Reference: 102740  (2278)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Style: esriSFSSolid
Color: [255, 170, 0, 255]
Outline:
Style: esriSLSSolid
Color: [0, 0, 0, 0]
Width: 0
Label: N/A
Description: N/A
Transparency: 25
Labeling Info:

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false
Supports Percentile Statistics: true
Supports Having Clause: true
Supports Count Distinct: true
Supports Time Relation: true
Supports Sql Format: false
Supports Query Analytic: true
Supports Query With Current User: true

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• Class ( type: esriFieldTypeString, alias: Class, length: 255 , Coded Values: [Building: Building] , [Other Paved: Other Paved] , [Pervious Pavement: Pervious Pavement] )
• Shape ( type: esriFieldTypeGeometry, alias: Shape )
• GlobalID ( type: esriFieldTypeGlobalID, alias: GlobalID, length: 38 )
• Shape.STArea() ( type: esriFieldTypeDouble, alias: Shape.STArea() )
• Shape.STLength() ( type: esriFieldTypeDouble, alias: Shape.STLength() )
• created_user ( type: esriFieldTypeString, alias: created_user, length: 255 )
• created_date ( type: esriFieldTypeDate, alias: created_date, length: 8 )
• last_edited_user ( type: esriFieldTypeString, alias: last_edited_user, length: 255 )
• last_edited_date ( type: esriFieldTypeDate, alias: last_edited_date, length: 8 )

Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

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