Note
Click here to download the full example code
Add shapes with textΒΆ
Display one shapes layer ontop of one image layer using the add_shapes and
add_image APIs. When the window is closed it will print the coordinates of
your shapes.
import numpy as np
from skimage import data
import napari
# add the image
viewer = napari.view_image(data.camera(), name='photographer')
# create a list of polygons
polygons = [
np.array([[225, 146], [283, 146], [283, 211], [225, 211]]),
np.array([[67, 182], [167, 182], [167, 268], [67, 268]]),
np.array([[111, 336], [220, 336], [220, 240], [111, 240]]),
]
# create features
features = {
'likelihood': [21.23423, 51.2315, 100],
'class': ['hand', 'face', 'camera'],
}
edge_color_cycle = ['blue', 'magenta', 'green']
text = {
'string': '{class}: {likelihood:0.1f}%',
'anchor': 'upper_left',
'translation': [-5, 0],
'size': 8,
'color': 'green',
}
# add polygons
shapes_layer = viewer.add_shapes(
polygons,
features=features,
shape_type='polygon',
edge_width=3,
edge_color='class',
edge_color_cycle=edge_color_cycle,
face_color='transparent',
text=text,
name='shapes',
)
# change some attributes of the layer
shapes_layer.opacity = 1
# To save layers to svg:
# viewer.layers.save('viewer.svg', plugin='svg')
if __name__ == '__main__':
napari.run()