View In:   ArcGIS Online Map Viewer

Name: 5m Contours

Display Field: NAME

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: 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 5m 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 2 blocks in the year 2023. The southern half of the City was flown in Jan 2023 and the northern half was flown in Dec 2023. The point cloud has a density of 10 points per square metre and a vertical accuracy of 0.1m (95%). The contours are derived through bipolar interpolation from the 5m DEM (raster) model. The height reference used is the SA Land Levelling Datum.

Service Item Id: 5360bab260a84669a632a4b55addc7f1

Copyright Text: Geomatics Branch, Applications | Information Systems and Technology Department, 1st floor Keller House, 121 Loop Street, Cape Town, 8001 Data distributed by City Maps public counter, email: City.Maps@capetown.gov.za.

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

Supports Datum Transformation: true

Extent:

XMin: 2037630.9276559164
YMin: -4077162.264316416
XMax: 2116280.3997703944
YMax: -3957751.1937221447
Spatial Reference: 102100  (3857)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Style: esriSLSSolid
Color: [0, 0, 0, 255]
Width: 1
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: true
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: false
Supports Query With LOD Spatial Reference: false
Supports Percentile Statistics: true
Supports Having Clause: true
Supports Count Distinct: true
Supports Time Relation: false
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:

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID, editable: false, nullable: false, defaultValue: null, modelName: OBJECTID )
• NAME ( type: esriFieldTypeString, alias: Name, editable: true, nullable: true, length: 6, defaultValue: null, modelName: NAME )
• LYR ( type: esriFieldTypeString, alias: Layer, editable: true, nullable: true, length: 26, defaultValue: null, modelName: LAYER )
• CLSD_CNTR ( type: esriFieldTypeString, alias: Closed Contour, editable: true, nullable: true, length: 3, defaultValue: null, modelName: CLOSED_CON )
• ELVT ( type: esriFieldTypeDouble, alias: Elevation, editable: true, nullable: true, defaultValue: null, modelName: ELVT )
• Shape__Length ( type: esriFieldTypeDouble, alias: Shape.STLength(), editable: false, nullable: true, defaultValue: null, modelName: Shape.STLength(), required: true )

Templates:

• Name: 5m Contours
  Description:
  Prototype:
  ELVT: null
  CLSD_CNTR: null
  NAME: null
  LYR: null
  
  Drawing Tool: esriFeatureEditToolLine

Capabilities: Query,Extract

Sync Can Return Changes: false

Is Data Versioned: false

Supports Rollback On Failure: true

Supports ApplyEdits With Global Ids: false

Supports Query With Historic Moment: false

Supports Coordinates Quantization: true

Child Resources:   Field Groups   Contingent Values

Supported Operations:   Query   Query Analytic   Validate SQL   Generate Renderer   Return Updates   Iteminfo   Thumbnail   Metadata   Update Metadata