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Module: | FoundationLite |
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Draws points on an image with two colors, depending on the status of each point.
Applications
Usually: green or red for pass/fail status.
Name | Type | Description | |
---|---|---|---|
inImage | Image | Input image | |
inPoints | Point2D?Array? | ||
inPointAlignment | CoordinateSystem2D* | ||
inColorIfTrue | Pixel | ||
inColorIfFalse | Pixel | ||
inConditions | Bool?Array? | ||
inDrawingStyle | DrawingStyle | ||
inForceRgb | Bool | Filter will convert monochromatic image to RGB if needed | |
outImage | Image | Output image |
Description
The operation draws an array of points on the inImage image using common drawing parameters for all of them. The points may exceed the image dimensions - those will be drawn partially or not at all, but the filter execution will succeed.
Hints
- Connect an image source to the inImage input. Drawing will be done on this image.
- If you want to draw on an empty background, use EmptyImage filter before.
- Define inPoints. 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
Description of usage of this filter can be found in examples and tutorial: Bottle Inspector Part 2: Measuring Liquid Level.
Errors
This filter can throw an exception to report error. Read how to deal with errors in Error Handling.
List of possible exceptions:
Error type | Description |
---|---|
DomainError | The sizes inPoints and inConditions do not match in DrawPoints_TwoColors. |
Complexity Level
This filter is available on Basic Complexity Level.
Filter Group
This filter is member of DrawPoints filter group.
See Also
- DrawLines – group of filters.
- DrawPaths – group of filters.
- DrawCircles – group of filters.
- DrawRectangles – group of filters.