Vicmap Lite - State Polygon

dataset: VMLITE_VICTORIA_POLYGON
This layer is part of Vicmap Lite and contains polygons representing the mainland, islands and the sea. The polygons were sourced from vmindex.fr_framework_area_polygon. The level of attribute information, the number of features and the number of vertices has been simplified. This version of the vmlite_victoria_polygon dataset was created by merging the previous layers vmlite_victoria_polygon_su2 and vmlite_victoria_polygon_su5. The concept of a Scale Use Code has been introduced to help control the level of detail displayed. Attribute scale_use_code values of 1 are suitable for display 1:2 million - 1:5 million scale range. Attribute scale_use_code values of 3,4&5 are suitable for display 1:250,000 - 1:2 million scale range. THIS DATASET WAS LAST UPDATED IN MAY 2014
 
Citation proposal Citation proposal
(2020)

Vicmap Lite - State Polygon

Department of Transport and Planning
 

Description

Title
Vicmap Lite - State Polygon 
Alternate title
VMLITE_VICTORIA_POLYGON 
Resource Type
Dataset  
Purpose
THIS DATASET WAS LAST UPDATED IN MAY 2014 
Supplemental Information
Related Documents: None 
Status
Completed  
 
 

Temporal

Time period
2007-01-012014-05-01 
 
 

Spatial

Spatial representation type
Vector  
Horizontal Accuracy
25m  
Code
7844 


 

 

Maintenance

Maintenance and update frequency
As needed  
 
 

Format

 
 

Contacts

  Point of contact

Cited responsible party  

No information provided.

Cited responsible party  

No information provided.

Cited responsible party  

No information provided.
 
 

Keywords

Topic category
  • Boundaries
 
 

Resource Constraints

Use limitation
For enquires relating to this product: vicmap.info@transport.vic.gov.au 
Classification
Unclassified  
 
 

Lineage

Statement
Dataset Source: Vicmap Index (FR_FRAMEWORK_AREA_POLYGON) Dataset Originality: Derived 
Description
Collection Method: Derived from source 
Description
Redundant attributes removed, Scale Use Code attribute added and populated. Number of verticies reduced using an enhanced Douglas and Peucker simplification algorithm. 
 
 

Metadata Constraints

Classification
Unclassified  
 
 

Quality

Attribute Quality
Comments
Not Known 
Positional Accuracy
Comments
The source line work was generalised using an enhanced Douglas and Peucker simplification algorithm. The algorithm keeps so-called critical points that depict the essential shape of a line and removes all other points. The algorithm connects the end nodes of an arc with a "trend line". The distance of each vertex to the trend line is measured perpendicularly. Vertices closer to the line than the tolerance are eliminated. A 80m tolerance was used on this dataset 
Conceptual Consistency
Comments
Not Known 
Missing Data
Comments
Statewide coverage complete for Victoria 
Excess Data
 
 

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