cairoPatternCreateLinear {RGtk2} | R Documentation

## cairoPatternCreateLinear

### Description

Create a new linear gradient `CairoPattern` along the line defined by (x0, y0) and (x1, y1). Before using the gradient pattern, a number of color stops should be defined using `cairoPatternAddColorStopRgb` or `cairoPatternAddColorStopRgba`.

### Usage

    cairoPatternCreateLinear(x0, y0, x1, y1)

### Arguments

``x0`` | [numeric] x coordinate of the start point
``y0`` | [numeric] y coordinate of the start point
``x1`` | [numeric] x coordinate of the end point
``y1`` | [numeric] y coordinate of the end point

### Details

Note: The coordinates here are in pattern space. For a new pattern, pattern space is identical to user space, but the relationship between the spaces can be changed with `cairoPatternSetMatrix`.

### Value

[`CairoPattern`] the newly created `CairoPattern` if successful, or an error pattern in case of no memory. This function will always return a valid pointer, but if an error occurred the pattern status will be set to an error. To inspect the status of a pattern use `cairoPatternStatus`.

### Author(s)

Derived by RGtkGen from GTK+ documentation

[Package RGtk2 version 2.20.40 Index]