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![](../../img/icon/DrawStrings.png)
DrawStrings_TwoColors
This is Filter Equivalent. This function may be present in generated code, but should not be used in hand-written code.
Draws strings (text) on an image with two colors, depending on the status of each string (usually: green or red for pass/fail status).
Syntax
void avs::DrawStrings_TwoColors ( const avl::Image& inImage, const atl::Conditional<atl::Array<atl::Conditional<atl::String> > >& inStrings, const atl::Conditional<atl::Array<atl::Conditional<avl::Location> > >& inLocations, atl::Optional<const avl::CoordinateSystem2D&> inLocationAlignment, const avl::Anchor2D::Type inLocationAnchor, const avl::Pixel& inColorIfTrue, const avl::Pixel& inColorIfFalse, const atl::Conditional< atl::Array<atl::Conditional<bool> > >& inConditions, const avl::DrawingStyle& inDrawingStyle, float inSize, float inOrientationAngle, const bool inForceRgb, const atl::Optional<avl::Pixel>& inBackgroundColor, avl::Image& outImage )
Parameters
Name | Type | Range | Default | Description | |
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inImage | const Image& | Input image | ||
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inStrings | const Conditional<Array<Conditional<String> > >& | { } | ||
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inLocations | const Conditional<Array<Conditional<Location> > >& | { } | ||
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inLocationAlignment | Optional<const CoordinateSystem2D&> | NIL | ||
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inLocationAnchor | const Anchor2D::Type | MiddleCenter | ||
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inColorIfTrue | const Pixel& | Pixel ( X: 0.0f Y: 200.0f Z: 0.0f W: 0.0f ) | Color corresponding to True value on inCondition input | |
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inColorIfFalse | const Pixel& | Pixel ( X: 200.0f Y: 0.0f Z: 0.0f W: 0.0f ) | Color corresponding to False value on inCondition input | |
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inConditions | const Conditional< Array<Conditional<bool> > >& | { } | ||
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inDrawingStyle | const DrawingStyle& | DrawingStyle ( DrawingMode: HighQuality Opacity: 1.0f Thickness: 1.0f Filled: False PointShape: Nil PointSize: 1.0f ) | ||
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inSize | float | 10.0 - ![]() |
16.0f | Height of a character in pixels |
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inOrientationAngle | float | 0.0f | Orientation of text in degrees | |
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inForceRgb | const bool | True | Filter will convert monochromatic image to RGB if needed | |
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inBackgroundColor | const Optional<Pixel>& | NIL | Color of pixels drawn on image in text row | |
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outImage | Image& | Output image |
Description
The operation draws a strings on the inImage aligning the inLocationAnchor location of the text at the inLocations of the inImage.
The height of the font is fixed and equals 16 pixels.
Hints
- If you want to draw on an empty background, use EmptyImage function before.
- Define inStrings. This will be the primitives to be drawn.
- For each of the strings also define its location by setting the inLocations input.
- If the locations provided on the inLocations input are in a local coordinate system, also set the inLocationAlignment input.
- Set inLocationAnchor do define how each of the strings should be aligned in relation to its location.
- Define the font size by setting the inSize input. Recommended values are: 16, 32, 48, 64.
- 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
![](../../img/filters/DrawStrings_TwoColors.png)
Example usage of the DrawStrings_TwoColors on an empty image.
Errors
Error type | Description |
---|---|
DomainError | Inconsistent input array sizes in DrawStrings_TwoColors. |