You are here: Start » Function Reference » All Functions » Image Drawing » DrawCircles_TwoColors
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 |
Module: | FoundationLite |
Draws circles on an image with two colors, depending on the status of each circle.
Applications: Usually: green or red for pass/fail status.
Syntax
void fis::DrawCircles_TwoColors ( const fil::Image& inImage, ftl::Conditional<const ftl::Array<ftl::Conditional<fil::Circle2D>>&> inCircles, ftl::Optional<const fil::CoordinateSystem2D&> inCircleAlignment, const fil::Pixel& inColorIfTrue, const fil::Pixel& inColorIfFalse, ftl::Conditional<const ftl::Array<ftl::Conditional<bool>>&> inConditions, const fil::DrawingStyle& inDrawingStyle, const bool inForceRgb, fil::Image& outImage )
Parameters
Name | Type | Default | Description | |
---|---|---|---|---|
![]() |
inImage | const Image& | Input image | |
![]() |
inCircles | Conditional<const Array<Conditional<Circle2D>>&> | { } | |
![]() |
inCircleAlignment | 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 circles on the inImage using common drawing parameters for all of them. Circles may exceed the image dimensions - those will be drawn partially or not at all, but the filter execution will succeed.
Hints
- Define inCircles. 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 DrawCircles_TwoColors on an empty image.
Errors
List of possible exceptions:
Error type | Description |
---|---|
DomainError | The sizes inCircles and inConditions do not match in DrawCircles_TwoColors. |