Visualisation Tools in Grasshopper+Rhino3D to Improve Multi-Criteria Analysis in Urban Policies – Case Study of Pampulha, Brazil

The Multi-Criteria Analysis is a classic analysis model for urban and environmental studies that intents to understand the main elements that affect a system, separate them in layers, and promote integration among them through the assessment of the impacts caused by the variation on the relevancy of each one of the components on a synthesis procedure. It is part of the systemic approach origins and its use was expanded by the easier access to GIS tools. The paper presents contributions to this step of choosing the importance of each criterion, based on visualization aspects: the user can test the importance of the decision controlling the results in the case study area. The tool is programmed in Grasshopper and Rhino 3D. To present the visualization we discuss the graphics semiology and the rules to arrive there developed in digital representation.

The Multi-Criteria Analysis is a classic analysis model for urban and environmental studies that intents to understand the main elements that affect a system, separate them in layers, and promote integration among them through the assessment of the impacts caused by the variation on the relevancy of each one of the components on a synthesis procedure. It is part of the systemic approach origins and its use was expanded by the easier access to GIS tools. The paper presents contributions to this step of choosing the importance of each criterion, based on visualization aspects: the user can test the importance of the decision controlling the results in the case study area. The tool is programmed in Grasshopper and Rhino 3D. To present the visualization we discuss the graphics semiology and the rules to arrive there developed in digital representation.