RGtk2 (version 2.10.9-1)

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 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.

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.