The canvas is a regular grid of a given resolution. Each range map is overlayed onto the canvas and the results saved to project.
An sqlite connection pointing to a valid
canvas.fetch Returns a
The method canvasSave() fails if
grid.size was not set and if the canvas was already constructed for the given project.
Mihai Valcu email@example.com
Valcu, M., Dale, J. and Kempenaers, B. (2012) rangeMapper: A platform for the study of macroecology of life history traits. 21(9). (DOI: 10.1111/j.1466-8238.2011.00739.x)
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