Class GradientTheme

The GradientTheme class defines a gradient color thematic rendering of features based by a numeric attribute.

Inheritance
object
BaseStyle
GradientTheme
Implements
Inherited Members
Namespace: Mapsui.Styles.Thematics
Assembly: Mapsui.dll
Syntax
public class GradientTheme : BaseStyle, IThemeStyle, IStyle

Constructors

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GradientTheme(string, double, double, IStyle, IStyle)

Initializes a new instance of the GradientTheme class

Declaration
public GradientTheme(string columnName, double minValue, double maxValue, IStyle minStyle, IStyle maxStyle)
Parameters
Type Name Description
string columnName

Name of column to extract the attribute
double minValue

Minimum value
double maxValue

Maximum value
IStyle minStyle

Color for minimum value
IStyle maxStyle

Color for maximum value

Properties

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ColumnName

Gets or sets the column name from where to get the attribute value

Declaration
public string ColumnName { get; init; }
Property Value
Type Description
string
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FillColorBlend

Gets or sets the ColorBlend used as Fill

Declaration
public ColorBlend? FillColorBlend { get; init; }
Property Value
Type Description
ColorBlend
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LineColorBlend

Gets or sets the ColorBlend used on lines

Declaration
public ColorBlend? LineColorBlend { get; init; }
Property Value
Type Description
ColorBlend
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Max

Gets or sets the maximum value of the gradient

Declaration
public double Max { get; init; }
Property Value
Type Description
double
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MaxStyle

Gets or sets the style for the maximum value

Declaration
public IStyle MaxStyle { get; init; }
Property Value
Type Description
IStyle
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Min

Gets or sets the minimum value of the gradient

Declaration
public double Min { get; init; }
Property Value
Type Description
double
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MinStyle

Gets or sets the style for the minimum value

Declaration
public IStyle MinStyle { get; init; }
Property Value
Type Description
IStyle
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TextColorBlend

Gets or sets the ColorBlend used on labels

Declaration
public ColorBlend? TextColorBlend { get; init; }
Property Value
Type Description
ColorBlend

Methods

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GetStyle(IFeature, Viewport)

Returns the style based on a numeric DataColumn, where style properties are linearly interpolated between max and min values.

Declaration
public IStyle? GetStyle(IFeature row, Viewport _)
Parameters
Type Name Description
IFeature row

Feature
Viewport _
Returns
Type Description
IStyle

A Style calculated by a linear interpolation between the min/max styles

Implements

Extension Methods