demap: gis mapping

demap is a director on the board of the International Map Trade Association (Asia Pacific) and a member of The North American Cartographic Information Society and The British Cartographic Society. He is also a member of of the International Cartographic Association Commission on National and Regional Atlases.

GIS Mapping

demap is experienced in working with the world’s leading GIS software package, ArcGIS. We have the ability to import, manipulate, query, analyse and visualise your data in just about any format available.

ArcGIS forms the platform of most of our mapping work. demap also frequently uses MAPublisher which is another powerful cartographic program for handling GIS data within Adobe Illustrator.

demap is available to work on-site to assist in any GIS mapping-related projects.

Import

demap can import and convert just about any geographic data into a suitable GIS format. The process of converting hardcopy maps to digital data is often called 'digitising'. Digitsing can be done two ways. Automatically or manually. For small jobs we may need to manually digitise an area in order to create the data we need. On the Aral Sea map we have manually digitised the 2009 shoreline in ArcMap to reflect the changing shoreline of the sea.

Query

Once we have your data imported into our GIS we can begin to perform any number of queries on your data. For example the image on the left answers a very simple question. Where are all of the National Parks surrounding Bendigo located? ArcMap can display the answer to this question visually and in a database or table. We can then perform a number of actions on the selected objects like exporting them to another database or publication, re-colour the selection or label selection etc.

Visualisation

demap stongly believes the best way to represent your data is by using a map! Maps are an extremely useful way to show geographical information. GIS compliments our existing mapping tools and adds another exciting tool to our tool box. The image on the left is taken from the world's largest atlas Earth. Earth was produced using a number of GIS methods and principles.

Manipulation

demap has the ability to transform or manipulate your data so it is compatible with our GIS. For example, we may need to transform your data from one map projection to another. We may need to change the scale of your data or generalise your data. The Aral Sea image to the left shows how we have generalised existing linework so it can be reproduced at a different (smaller) map scale.

Analysis

demap can use GIS to analyse your data, predict patterns, highlight trends and undertake 'what if' scenarios. The two most common operations that we do here at demap are 'Proximity Analysis' and 'Overlay Analysis'. An example of Proximity Analysis is: How many customers lie within 25km of my store? The image to the left is an example of Overlay Analysis where we have integrated and analysed data from a number of different data themes/layers.

Population Density

Client: demap

Publication: Postcard series