This Gist provides instructions on how to use a custom plugin that replaces the default Display Recent Gaze plugin in Pupil Capture.
Like any other plugin, place it pupil_capture_settings > plugins and restart Pupil Capture, you should see a new plugin on the plugin menu named Custom Display Recent Gaze, this will allow you change the size, color and transparency of the circle drawn with the latest gaze points after calibration.
| from gl_utils import draw_circle_filled_func_builder | |
| from methods import denormalize | |
| from plugin import Plugin | |
| from plugin import Plugin as System_Plugin_Base | |
| from pyglui.cygl.utils import RGBA | |
| from pyglui import ui | |
| class Display_Recent_Gaze(System_Plugin_Base): | |
| """ | |
| Custom_Display_Recent_Gaze shows the three most | |
| recent gaze positions on the screen with adjustable color and size. | |
| """ | |
| def __init__(self, g_pool): | |
| super().__init__(g_pool) | |
| self.order = 0.8 | |
| self.uniqueness = "by_class" | |
| self.icon_chr = chr(0xEC02) | |
| self.icon_font = "pupil_icons" | |
| self.pupil_display_list = [] | |
| self._draw_circle_filled = draw_circle_filled_func_builder() | |
| self.menu = None | |
| self.red = 1.0 | |
| self.green = 0.2 | |
| self.blue = 0.4 | |
| self.alpha = 0.8 | |
| self.size = 35 | |
| def init_ui(self): | |
| self.add_menu() | |
| self.menu.label = "Custom Display Recent Gaze" | |
| self.menu.append( | |
| ui.Info_Text( | |
| "This is a custom plugin that replaces the default Display Recent Gaze plugin. It allows you to adjust the color and size of the gaze point shown after calibration." | |
| ) | |
| ) | |
| self.menu.append(ui.Slider("red", self, label="Red", min=0, max=1, step=0.01)) | |
| self.menu.append( | |
| ui.Slider("green", self, label="Green", min=0, max=1, step=0.01) | |
| ) | |
| self.menu.append(ui.Slider("blue", self, label="Blue", min=0, max=1, step=0.01)) | |
| self.menu.append( | |
| ui.Slider("alpha", self, label="Alpha", min=0, max=1, step=0.01) | |
| ) | |
| self.menu.append(ui.Slider("size", self, label="Size", min=5, max=50, step=1)) | |
| def deinit_ui(self): | |
| self.remove_menu() | |
| def recent_events(self, events): | |
| for pt in events.get("gaze", []): | |
| recent_frame_size = self.g_pool.capture.frame_size | |
| point = denormalize(pt["norm_pos"], recent_frame_size, flip_y=True) | |
| self.pupil_display_list.append((point, pt["confidence"] * self.alpha)) | |
| self.pupil_display_list[:-3] = [] | |
| def gl_display(self): | |
| for pt, a in self.pupil_display_list: | |
| # This could be faster if there would be a method to also add multiple colors per point | |
| self._draw_circle_filled( | |
| tuple(pt), | |
| size=self.size / 2, | |
| color=RGBA(self.red, self.green, self.blue, a), | |
| ) | |
| def get_init_dict(self): | |
| return {} |