RGtk2 (version 2.8.8)

cairoPatternCreateLinear: cairoPatternCreateLinear

Description

Create a new linear gradient cairo_pattern_t 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

Value

• [CairoPattern] the newly created CairoPattern if succesful, or an error pattern in case of no memory. The caller owns the returned object and should call cairo() when finished with it.

  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.

  [object Object] internal

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.