Edit Legend

The classification can be applied in both vector and raster data. The basic principle of this type of classification is grouping the data following the logic of some selected method.

LAYER EXPLORER → right click over a layer-name → EDIT LEGEND.

The interface shows specific parameters depending on the data type chosen, Vector Classification or Raster Classification.



Vector Legend

The available methods in TerraAmazon are:

Unique Values: It groups the values using the unique value algorithm.

Equal Steps: The entire range of values (max - min) is divided equally into however many categories have been defined. It groups the values defined by a range of an attribute using the equal steps algorithm.

Quantil: This method classifies data into a certain number of categories with an equal number of units in each category. It groups the values defined by a range of a attribute using the quantil algorithm.)

Standard Deviation: It groups the values defined by a range of a attribute using the standard deviation algorithm.

The parameters necessary to execute the Classification are grouped in frames at the interface. See the details bellow.



Import Layer Grouping - Check this box to eventually use the parameters used in other layer

Layer - select the layer from where to import the parameters of classification. It might not be possible to import any of them.

Press the Import button.



Parameters

Type - Select the method of classification (unique value, equal steps, quantil).

Attribute - Select the attribute to be used in the classification. The attributes listed may vary depending on selected method of classification.

A summary function may be chosen if the classification is being generated based on a linked dataset, otherwise this function is not visible.

Slices - Set the number of slices to be created in the classification.

Precision - Sets the precision value.

Standard Deviation -

Color Bar - Set the color ramp.

Use Schema - Check this box to use predifined color schema.

Catalog – Only default catalog is available.

Group - Select one of the options: basic, composition and classification.

Schema – Select one available for the selected group.

Press the Apply button to show the Legend frame with the slices identified by Symbol, Title, Value, Count.

Press the OK button to generate the Classification by Grouping with these parameters or change the parameters and apply again.



Raster Legend

The available methods in TerraAmazon are:

Categorize: The transformation of continuous values to distinct values.

Interpolation: The transformation of continuous values to a number of values.

Recode: The transformation of continuous values to recoded values.

The parameters necessary to execute the Classification are grouped in frames at the interface. See the details bellow.



Import Layer Grouping - Check this box to eventually choose the same parameters used in other layer

Layer - select the layer from where to import the parameters of classification. It might not be possible to import any of them.

Press the the Import button.



Parameters

Band - Select which band will be classified.

Minimum Value - Set the minimum value (the suggested value is get from the selected band).

Maximum Value - Set the maximum value (the suggested value is get from the selected band).

Transformation - Select the method for classification (categorize, interpolate and recode).

Steps - Set the number of steps to be created in the classification.

Precison - Defines how data is classified.

Use Schema - Check this box to use predifined color schema.

Catalog – Only default catalog is available.

Group - Select on of the options: basic, composition and classification.

Schema – Select one available for the selected group.

Press the Apply button to show the Color Map with the slices identified by Value, Color and Label.

Press the OK button to generate the Color Map with these parameters or change the parameters and apply again.