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DrawLines_TwoColors


This is Filter Equivalent. This function may be present in generated code, but should not be used in hand-written code.

Header: AVL.h
Namespace: avs
Module: FoundationLite

Draws lines on an image with two colors, depending on the status of each line.

Applications: Usually: green or red for pass/fail status.

Syntax

void avs::DrawLines_TwoColors
(
	const avl::Image& inImage,
	atl::Conditional<const atl::Array<atl::Conditional<avl::Line2D>>&> inLines,
	atl::Optional<const avl::CoordinateSystem2D&> inLineAlignment,
	const avl::Pixel& inColorIfTrue,
	const avl::Pixel& inColorIfFalse,
	atl::Conditional<const atl::Array<atl::Conditional<bool>> &> inConditions,
	const avl::DrawingStyle& inDrawingStyle,
	const bool inForceRgb,
	avl::Image& outImage
)

Parameters

Name Type Default Description
inImage const Image& Input image
inLines Conditional<const Array<Conditional<Line2D>>&> { }
inLineAlignment Optional<const CoordinateSystem2D&> NIL
inColorIfTrue const Pixel& Pixel ( X: 0.0f Y: 200.0f Z: 0.0f W: 0.0f )
inColorIfFalse const Pixel& Pixel ( X: 200.0f Y: 0.0f Z: 0.0f W: 0.0f )
inConditions Conditional<const Array<Conditional<bool>> &> { }
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.
  • Define inConditions with the boolean values indicating the class (usually: OK/NOK) for each input primitive.
  • Set the inColorIfTrue and inColorIfFalse inputs to define the two colors used for drawing.
  • 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_TwoColors on an empty image.

Errors

List of possible exceptions:

Error type Description
DomainError The sizes inLines and inConditions do not match in DrawLines_TwoColors.

See Also

  • DrawPath – Draws a path on an image.