View In:   ArcGIS Online Map Viewer

Name: Tree Canopies

Display Field: CRTR_NAME

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This dataset represents the extent of the City of Cape Town’s Tree Canopy. This dataset was generated in order to provide the Recreation and Parks with a better understating of the extent of; and to aid its management decision making in relation to this green infrastructure.A near infra-red (NIR) imagery dataset was acquired simultaneously with the 2018 aerial imagery. The NIR dataset was then combined into the colour infra-red (CIR) composite where plant health shows up as red. A height mask of ground height to 2.75m and above was then used to remove undesirable features such as lawns and bushes using LiDAR and an auto-correlated DSM. Feature extraction using sample selections were then applied to the CIR to select all vegetation over 2.75m above ground. Input data was packaged into a 5 x 5km grid, comprising of 147 blocks across the City.Data then underwent manual GIS cleaning and quality control based on the 2018 aerial imagery, to remove anomalies from the dataset and to conduct edge-matching along the grid boundaries.

Service Item Id: 2db5b4cac4a44d099072e7e8aad5db08

Copyright Text: Recreation and Parks Department, Planning, Development & Project Management Office (PDPMO), Geospatial Services Department, Community Services & Health, City of Cape Town

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: 2037741.1778855568
YMin: -4076918.032102974
XMax: 2115401.678630424
YMax: -3958353.717781577
Spatial Reference: 102100  (3857)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
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Outline:
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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: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: true
Supports Returning Geometry Centroid: true
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: false
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 )
• Shape__Area ( type: esriFieldTypeDouble, alias: Shape.STArea(), editable: false, nullable: true, defaultValue: null, modelName: Shape_Area, required: true )
• Shape__Length ( type: esriFieldTypeDouble, alias: Shape.STLength(), editable: false, nullable: true, defaultValue: null, modelName: Shape_Length, required: true )

Templates:

• Name: Tree Canopies
  Description:
  Prototype:
  Drawing Tool: esriFeatureEditToolPolygon

Capabilities: Query

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   Apply Edits   Add Features   Update Features   Delete Features   Calculate   Validate SQL   Generate Renderer   Return Updates   Iteminfo   Thumbnail   Metadata   Update Metadata