Visualize pipeline steps ======================== Visualization is not a pipeline step, but each [ArFrame](../../argaze.md/#argaze.ArFeatures.ArFrame) pipeline step output can be drawn in real-time or afterward, depending on the application purposes. ![ArFrame visualization](../../img/visualization.png) ## Add image parameters to ArFrame JSON configuration [ArFrame.image](../../argaze.md/#argaze.ArFeatures.ArFrame.image) method parameters can be configured with a dedicated JSON entry. Here is an extract from the JSON ArFrame configuration file with a sample where image parameters are added: ```json { "argaze.ArFeatures.ArFrame": { "name": "My FullHD screen", "size": [1920, 1080], ... "image_parameters": { "draw_gaze_positions": { "color": [0, 255, 255], "size": 2 }, "draw_fixations": { "deviation_circle_color": [255, 255, 255], "duration_border_color": [127, 0, 127], "duration_factor": 1e-2, "draw_positions": { "position_color": [0, 255, 255], "line_color": [0, 0, 0] } }, "draw_saccades": { "line_color": [255, 0, 255] }, "draw_scan_path": { "draw_fixations": { "deviation_circle_color": [255, 0, 255], "duration_border_color": [127, 0, 127], "duration_factor": 1e-2 }, "draw_saccades": { "line_color": [255, 0, 255] } }, "draw_layers": { "MyLayer": { "draw_aoi_scene": { "draw_aoi": { "color": [255, 255, 255], "border_size": 1 } }, "draw_aoi_matching": { "draw_matched_fixation": { "deviation_circle_color": [255, 255, 255], "draw_positions": { "position_color": [0, 255, 0], "line_color": [0, 0, 0] } }, "draw_matched_region": { "color": [0, 255, 0], "border_size": 4 }, "draw_looked_aoi": { "color": [0, 255, 0], "border_size": 2 }, "looked_aoi_name_color": [255, 255, 255], "looked_aoi_name_offset": [0, -10] } } } } } } ``` !!! warning Most of *image_parameters* entries work if related ArFrame/ArLayer pipeline steps are enabled. For example, a JSON *draw_scan_path* entry needs GazeMovementIdentifier and ScanPath steps to be enabled. !!! note "Export to video file" Video exportation is detailed in [gaze analysis recording chapter](recording.md).