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This is Filter Equivalent. This function may be present in generated code, but should not be used in hand-written code.
Header: | FIL.h |
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Namespace: | fis |
Module: | FoundationLite |
Draws boxes on an image with a single color.
Syntax
void fis::DrawBoxes_SingleColor ( const fil::Image& inImage, ftl::Conditional<const ftl::Array<ftl::Conditional<fil::Box>>&> inBoxes, const fil::Pixel& inColor, const float inOpacity, const bool inForceRgb, fil::Image& outImage )
Parameters
Name | Type | Range | Default | Description | |
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inImage | const Image& | Input image | ||
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inBoxes | Conditional<const Array<Conditional<Box>>&> | { } | ||
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inColor | const Pixel& | |||
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inOpacity | const float | 0.0 - 1.0 | 1.0f | |
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inForceRgb | const bool | True | Filter will convert monochromatic image to RGB if needed | |
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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 boxes on the inImage using common drawing parameters for all of them.
Boxes may exceed the image dimensions - those will be drawn partially or not at all, but the filter
execution will succeed. Note that drawing is conducted in a pixel-precise way as the Box type is pixel-precise.
Hints
- If you want to draw on an empty background, use EmptyImage function before.
- Define inBoxes. This will be the primitives to be drawn.
- Define inColor. Please note, that on an N-channel image only first N components of the color will be used.
- Set inForceRgb to True, if you want to get a 3-channel output regardless of what is on the input.
Examples

Example usage of the DrawBoxes_SingleColor on an empty image.
See Also
- DrawRegion – Draws a region on an image.