4.3.3 Graded colour scheme - LUPMISManual

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4. Attribute database > 4.3 Display database information

4.3.3 Graded colour scheme

You can display the map with graded colours for the specified data field.

Back to the Project manager window: Style > Assign according to > Database > Data column > Select the data field you want for display (here: MATMORT) > Filter data in ... >

> New filter > Select folder > Specify a new file name for the filter (= colour grade definition, which you will create now, e.g. 'filter1') > Save (If you have created such a filter before, you can ‘Choose filter’) > OK >

> Data bands window: Filter > Apply filter to: Polygons only > Tick: ‘Use polygons colours rather than styles’> Tick: ‘Graded colours’ > Bands: 2 > Click on the gray/colour boxes below ‘Fill colour’ to select the colour range (recommended: Dark colour for the upper box, light colour for the lower box) > OK > OK

Note 1: In specific cases, you might use also 3 bands with an intermediate colour.

Note 2: If ‘graded colour’ is not visible or is not enabled, you have to check and make sure, that the numbers for the gradient are numeric, in the original spreadsheet.

The graded colours map should look like this:

- - - - -

If you want the colour scheme not graded, but assign individual colours, you can do so:
Remove the tick from ‘Graded colours’ > Check or assign individual colours > Test different options with different bands:

- - - - -

If you work with individual colour assignments for different classes, you might be interested in the definition of the bands, i.e. the assignment of colours to numeric values of the database. You find these under ‘
Numerical bands’(1, see below).

You can change the band limits by clicking on the ‘drag’ button and drag it up or down (2).

If you the lower limit does not show correctly on your map, you should reduce the lower limit by 1  (3).

Note 3: It is always what is displayed under this ‘Numerical bands’, not under ‘Filter’, what is then used for the calculation of the map.


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