Geographic Coverage, Scale and Projection Specifications

Vicmap API coverage extends beyond the Victorian border into NSW and South Australia at larger, detail levels. Vicmap API tiles are available in the VicGrid94 Projection as well as the popular Web Mercator or "Google" projection.

Web Mercator

Vicmap API is available in the Web Mercator (commonly known as Google maps) projection. This projection is utilised by the vast majority of Web Mapping applications around the world and will enable web developers and designers to integrate Vicmap API seamlessly into their current application or web page. All layers are served with high resolution tiles being 512 x 512 pixels.

Web Mercator map

The Spherical Mercator or Web Mercator projection is coded as : 900913 equivilent to EPSG:3857. For further information on the Web Mercator projection please visit Wikipedia

The scale levels and resolution are listed below.

Web Mercator scales

Zoom Level Scale (m) Resolution
1 9,000,000 2445.9849051249898
2 4,000,000 1222.9924525624949
3 2,000,000 611.496226281379687
4 1,000,000 305.74811314055756
5 546,000 152.87405657041106
6 273,000 76.437028285073239
7 136,000 38.21851414253662
8 68,000 19.10925707126831
9 34,000 9.5546285356341549
10 17,000 4.7773142679493699
11 8531 2.3886571339746849
12 4265 1.1943285668550503
13 2133 0.59716428355981721
14 1066 0.29858214164761665
15 533 0.14929107082380833
VicGrid94

The VicGrid94 projection EPSG:3111 has been chosen as the projection of choice as it is the most accurate projection with minimal distortions for the state of Victoria mapping applications

VicGrid94 Map

For more detailed information on the Vicgrid94 projection peruse the  VICGRID94 Map Projection Information sheet

Vicmap API offers 14 levels of zoom ranging from the scale of 1:8 million to 1:800.

VicGrid94 scales

Zoom Level Scale (m) Resolution
1 8,000,000 2116.670900008467
2 4,000,000 1058.3354500042335
3 2,000,000 529.1677250021168
4 1,000,000 264.5838625010584
5 500,000 132.2919312505292
6 250,000 66.1459656252646
7 100,00026.458386250105836
8 50,000 13.229193125052918
9 25,000 6.614596562526459
10 10,002.6458386250105836
11 5,0001.3229193125052918
12 2,500 0.6614596562526459
13 1,250 0.33072982812632296
14 800 0.21166709000084669

Page last updated: 12/04/19