Back to FabImage Library website
You are here: Start » Function Reference » Image Drawing » DrawLines_Palette
This is Filter Equivalent. This function may be present in generated code, but should not be used in hand-written code.
Header: | FIL.h |
---|---|
Namespace: | fis |
Draws lines on an image with multiple colors.
Syntax
void fis::DrawLines_Palette ( const fil::Image& inImage, ftl::Conditional<const ftl::Array<ftl::Conditional<fil::Line2D> >&> inLines, ftl::Optional<const fil::CoordinateSystem2D&> inLineAlignment, ftl::Optional<const ftl::Array<fil::Pixel>&> inColors, const fil::DrawingStyle& inDrawingStyle, const bool inForceRgb, fil::Image& outImage )
Parameters
Name | Type | Default | Description | |
---|---|---|---|---|
![]() |
inImage | const Image& | Input image | |
![]() |
inLines | Conditional<const Array<Conditional<Line2D> >&> | { } | |
![]() |
inLineAlignment | Optional<const CoordinateSystem2D&> | NIL | |
![]() |
inColors | Optional<const Array<Pixel>&> | NIL | |
![]() |
inDrawingStyle | const DrawingStyle& | DrawingStyle ( DrawingMode: HighQuality Opacity: 1.0f Thickness: 1.0f Filled: False PointShape: Nil PointSize: 1.0f ) | |
![]() |
inForceRgb | const bool | True | Filter will convert monochromatic image to RGB if needed |
![]() |
outImage | Image& | Output image |
In-place Processing
This function supports in-place data processing - you can pass the same reference to inImage and outImage
Read more about In-place Computation.
Description
The operation draws an array of lines on the inImage using common drawing parameters for all of them. As the length of every line is infinite, they are drawn partially.
Hints
- Define inLines. This will be the primitives to be drawn.
- Leave the inColors input not set to have all the primitives drawn with random colors. Set a custom array of colors here to decide explicitly how each of the primitives should be drawn.
- Set inForceRgb to True, if you want to get a 3-channel output regardless of what is on the input.
- Set inDrawingStyle to control quality, opacity, thickness, filling, point shapes and sizes.
Examples

Example usage of the DrawLines_Palette on an empty image.
See Also
- DrawPath – Draws a path on an image.
- DrawSegment – Draws a segment on an image.