Parent Layer: February 22

Name: Ground Level Map 2m Contours

Display Field: NAME

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: The City of Cape Town Ground Level Map 2019 is defined in the City of Cape Town Municipal Planning Amendment By-law, 2019 as: “‘City of Cape Town Ground Level Map’ means a map approved in terms of the development management scheme, indicating the existing ground level based on floating point raster’s and a contour dataset from LiDAR information available to the City”.Contour lines connect a series of points of equal elevation and are used to illustrate topography, or relief, on a map and can be drawn at various desired intervals. This dataset displays contours drawn at every 2m height interval. Numerous contours that are close together indicate hilly or mountainous terrain; and when far apart, they represent a gentler slope. The contours were derived from LiDAR (Light Detection and Ranging) data that was captured in 3 blocks in the years 2018 to 2019. The LiDAR point cloud has a density of 2 to 3 points per square metre at a vertical accuracy of 0.1m (95%). The contours are derived through bipolar interpolation from the 5m TIN model. The height reference used is the SA Land Levelling Datum and the SAGEOID2010 was employed.

Copyright Text: Information & Knowledge Management Dept., Geospatial Section, 1st Floor, Keller House, 121 Loop Street, Cape Town. Contact: Ms. Lara Röttcher, Tel. 021 487 2599, email: lara.rottcher@capetown.gov.za. Data distributed by City Maps public counter, 7th Floor, Keller House, 121 Loop Street, Cape Town.

Default Visibility: true

MaxRecordCount: 250000

Supported Query Formats: JSON, geoJSON

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: 2037609.9277226466
YMin: -4077159.5752888885
XMax: 2115730.0747071006
YMax: -3957810.609717995
Spatial Reference: 102100  (3857)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Style: esriSLSSolid
Color: [0, 0, 0, 255]
Width: 0
Label:
Description:
Transparency: 0
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

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• NAME ( type: esriFieldTypeString, alias: Name, length: 6 )
• ELVT ( type: esriFieldTypeDouble, alias: Elevation )
• CLSD_CNTR ( type: esriFieldTypeString, alias: Closed Contour, length: 3 )
• Shape ( type: esriFieldTypeGeometry, alias: Shape )
• Shape.STLength() ( type: esriFieldTypeDouble, alias: Shape.STLength() )

Supported Operations:   Query   Generate Renderer   Return Updates

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