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7e896b5
1
Parent(s):
17da4a9
Upload 2 files
Browse files- app.py +7 -7
- los_palette.py +6 -6
app.py
CHANGED
@@ -56,8 +56,8 @@ def satellite_marker(axis, angle=0, center=(0, 0)):
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def get_params(heading_angle, grazing_angle, look_direction):
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left_looking = look_direction == 'Left Looking'
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away_vector = angles_to_unit_vector(heading_angle, grazing_angle, left_looking)
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away_color = unit_vector_to_hex(away_vector)
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-
towards_vector = angles_to_unit_vector(heading_angle, 180 + grazing_angle, left_looking)
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towards_color = unit_vector_to_hex(towards_vector)
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return away_vector, left_looking, (away_color, towards_color)
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@@ -177,11 +177,11 @@ def plot_color_gradient(params):
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def reset_widgets(menu_value):
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options = {
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's1a': (348, 34, '
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's1d': (193, 34, '
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'vert': (0, 0, '
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'we': (0, 90, '
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'sn': (90, 90, '
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}
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heading_input.value, grazing_input.value, look_switch.value = options[menu_value]
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@@ -196,7 +196,7 @@ heading_input = pn.widgets.IntInput(name='Satellite Heading (0-360)', start=0, e
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grazing_input = pn.widgets.IntInput(name='Grazing Angle (0-90)', start=0, end=90, step=5, value=34, **opts)
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# heading_input = pn.widgets.IntSlider(name='Satellite Heading', start=0, end=360, step=1, value=360 - 12, **opts)
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# grazing_input = pn.widgets.IntSlider(name='Grazing Angle', start=0, end=90, step=1, value=34, **opts)
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look_switch = pn.widgets.ToggleGroup(options=['
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menu_items = [
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('Sentinel-1 Ascending', 's1a'),
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('Sentinel-1 Descending', 's1d'),
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def get_params(heading_angle, grazing_angle, look_direction):
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left_looking = look_direction == 'Left Looking'
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away_vector = angles_to_unit_vector(heading_angle, grazing_angle, left_looking)
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+
towards_vector = away_vector * -1
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away_color = unit_vector_to_hex(away_vector)
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towards_color = unit_vector_to_hex(towards_vector)
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return away_vector, left_looking, (away_color, towards_color)
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def reset_widgets(menu_value):
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options = {
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's1a': (348, 34, 'Right Looking'),
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's1d': (193, 34, 'Right Looking'),
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'vert': (0, 0, 'Right Looking'),
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'we': (0, 90, 'Right Looking'),
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'sn': (90, 90, 'Right Looking'),
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}
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heading_input.value, grazing_input.value, look_switch.value = options[menu_value]
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grazing_input = pn.widgets.IntInput(name='Grazing Angle (0-90)', start=0, end=90, step=5, value=34, **opts)
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# heading_input = pn.widgets.IntSlider(name='Satellite Heading', start=0, end=360, step=1, value=360 - 12, **opts)
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# grazing_input = pn.widgets.IntSlider(name='Grazing Angle', start=0, end=90, step=1, value=34, **opts)
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+
look_switch = pn.widgets.ToggleGroup(options=['Right Looking', 'Left Looking'], behavior='radio', **opts)
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menu_items = [
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('Sentinel-1 Ascending', 's1a'),
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('Sentinel-1 Descending', 's1d'),
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los_palette.py
CHANGED
@@ -1,20 +1,20 @@
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import numpy as np
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def angles_to_unit_vector(heading_angle_degrees,
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# Convert angles to radians
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heading_angle_start_at_east = 90 - heading_angle_degrees
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look_offset = 90 if left_looking else -90
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heading_los = heading_angle_start_at_east + look_offset
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heading_angle_radians = np.radians(heading_los)
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# Calculate the vector components
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x_component = np.cos(heading_angle_radians) * np.cos(
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y_component = np.sin(heading_angle_radians) * np.cos(
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z_component = np.sin(
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# Create a NumPy array for the vector
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vector = np.array([x_component, y_component, z_component])
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import numpy as np
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def angles_to_unit_vector(heading_angle_degrees, grazing_angle_degrees, left_looking=True):
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# Convert angles to radians
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heading_angle_start_at_east = 90 - heading_angle_degrees
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look_offset = 90 if left_looking else -90
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heading_los = heading_angle_start_at_east + look_offset
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heading_angle_radians = np.radians(heading_los)
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grazing_angle_sensor_to_ground = -(90 - grazing_angle_degrees)
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grazing_angle_radians = np.radians(grazing_angle_sensor_to_ground)
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# Calculate the vector components
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x_component = np.cos(heading_angle_radians) * np.cos(grazing_angle_radians)
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y_component = np.sin(heading_angle_radians) * np.cos(grazing_angle_radians)
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z_component = np.sin(grazing_angle_radians)
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# Create a NumPy array for the vector
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vector = np.array([x_component, y_component, z_component])
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