# Point Features Finder

This UI controller allows the configuration of multiple point feature finders (for example, corner finders). When executed in a sequence, the block behind runs the configured finders on its input images and outputs a list of the found points and graphics.

### Settings

Point Features Finder UI consists of four areas: Images, Main Display, Finders, and Details.

### Images

This area lists out all available images for feature finding. The number of images is the same with the image input pins of bonded Point Feature Finder block inside the program. Images are visible on this UI only when there are valid images fed into the features finder block. If not, this area appears as blank and no further operations can be done.

### Main Display

By clicking one of the images, the main display area will show the selected image in larger scale.

### Finders

The finder area maintains all finders that are used to find features. If a finder locates feature using only one input image, that finder should be added under the corresponding camera icon. Otherwise, it should be added under “Multi Camera Finders” category.

There are several buttons allow user to create/edit/modify finders.

- New: Create a new finder such as PatMax Finder (image or synthetic), Corner Finder, or Custom Toolblock Point Finder.

- Edit: Edit the selected finder(rename, copy, delete, or edit)

- Run: Run the selected finder and show the result.

  If a finder runs successfully with a valid output feature, there will be a small green light '' shown at its right side. Otherwise, the light icon will be '', which indicates the feature is invalid or not found and will be ignored for pose computing. In this case, one need to resolve the error inside and make the finder run successfully.

- Features: Rename features found by finders. Feature names are the same with their finder names by default. However, users can rename to make them more meaningful. This function can also be used to pair features. For example, in assembly applications where Paired Features mode is used, features between two parts need to be paired using the same feature names.

### Details

Details area is used to set parameters for selected finder.

## Link to Tool Block

One Point Features Finder UI is corresponding to one Point Features Finder toolblock. To bind UI with toolblock, you just need to check on two steps:

1. Clicking the Point Features Finder UI;
2. At the UI’s properties, manually select the path of the toolblock in “Subject” property.