Generalities¶
What is ToolMap?¶
ToolMap is a cost-free, open-source software dedicated for digitizing data and producing complex multi-layer GIS projects.
It was developped in response to the need to create projects with:
- A faultless and accurate topological structure.
- A correct and homogenized semantic attribution.
How does it work?¶
ToolMap perform its duty based on two basic and undissociable principles:
The data model: | describing the nature and spatial relationships between the possible different features. |
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The digitizing process: | |
allowing only two types of geometries, lines and points to represent all two-dimensional “real-world” objects. No polygon layer exists in ToolMap; they are built from the combination of lines delinaeting surfaces. Digitizing all lines, line feature (strictly speaking) and borders of polygons within one single layer yields the following advantages:
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In the next part, we will see where are the data we used for this tutorial.