O'Reilly logo

QGIS By Example by Daria Svidzinska, Alexander Bruy

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Step 5 – overlay the data and interpret the results

Now we have everything ready for overlaying the rasters and generating a cumulative suitability assessment. In the following table, you can see the full list of layers, weighted by their importance for general suitability. Weights are simple coefficients within a range of 0 to 1, and they are used to modify the rank properly.

No.

Raster layer name

Raster layer type

Rank min

Rank max

Weight coefficient

Max possible value = max rank * weight

1

athletic_facilities_proximity_ranks

Proximity

1

5

0.04

0.2

2

bike_routes_proximity_ranks

Proximity

1

3

0.06

0.18

3

hurricane_evacuation_zones

Zoning

1

7

0.16

1.12

4

hurricane_inundation_zones

Zoning

1

5

0.16

0.8

5

Museumart_ranked ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required