Add Răhukăla display to the generated SVG
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@ -1,12 +1,12 @@
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from datetime import datetime, time
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from math import ceil, cos, pi, radians, sin
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from typing import Union
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from typing import Optional, Union
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from astral import LocationInfo, moon
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from pytz import UTC, timezone
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from .config import load_config
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from .times import collect_day_parts
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from .times import collect_day_parts, get_rahukaalam_times
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HOURS_AMPM = (
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'Midnight',
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@ -94,7 +94,9 @@ def hex_to_rgb(hex_color: str) -> str:
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g = int(hex_color[3:5], 16)
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b = int(hex_color[5:7], 16)
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return f'rgb({r}, {g}, {b})'
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ret = f'rgb({r}, {g}, {b})'
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return ret
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def get_utc_offset(utc_time: datetime, local_time: datetime):
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@ -160,12 +162,10 @@ def hour_marker(
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hour_name_y = image_width / 2 - outer_r + ring_width / 2 + hour_name_font_size / 4
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utc_hour_y = image_width / 2 - outer_r + ring_width + utc_font_size
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ret = f'''<g class="hour {season}" transform="rotate(-172.5, {image_width / 2}, {image_width / 2}) rotate({rotation}, {image_width / 2}, {image_width / 2})">
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ret = f'''<g class="hour {season}" transform="rotate({rotation - 172.5}, {image_width / 2}, {image_width / 2})">
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<path
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d="M {x1} {y1} a {outer_r} {outer_r} 15 0 1 {2 * delta_x} 0 l {s_delta_x} {s_delta_y} a {outer_r - ring_width} {outer_r - ring_width} 15 0 0 {i_delta_x} 0 z"></path>
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<text
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x="{image_width / 2}"
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y="{hour_name_y}"
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text-anchor="middle"
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dominant-baseline="mathematical"
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font-size="{hour_name_font_size}"><textPath xlink:href="#hour-name-path" startOffset="50%">{hour_name}</textPath></text>
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@ -194,7 +194,7 @@ def local_hour(
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return indent_lines(
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f'''<text
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transform="rotate(180, {image_width / 2}, {image_width / 2}) rotate({rotation}, {image_width / 2}, {image_width / 2})"
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transform="rotate({180 + rotation}, {image_width / 2}, {image_width / 2})"
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class="local-hour"
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x="{image_width / 2}"
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y="{image_width / 2 - outer_r - font_size / 2}"
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@ -260,6 +260,55 @@ C {h2_x} {bottom_y}, {h2_x} {top_y}, {image_width / 2} {image_width / 2 - radius
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return indent_lines(ret, indent)
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def draw_rahukaala(
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image_width: float,
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rahukaala_radius: float,
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rahukaala_width: float,
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sun_radius: float,
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start: datetime,
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end: datetime,
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indent: int = 8,
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) -> str:
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start_deg = time_to_degrees(start)
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end_deg = time_to_degrees(end)
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alpha = radians(end_deg - start_deg)
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delta_x = -rahukaala_radius * sin(alpha)
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delta_y = -rahukaala_radius * (1 - cos(alpha))
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inner_delta_x = -(rahukaala_radius - rahukaala_width) * sin(alpha)
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inner_delta_y = -(rahukaala_radius - rahukaala_width) * (1 - cos(alpha))
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s_delta_x = rahukaala_width * sin(alpha)
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s_delta_y = -rahukaala_width * cos(alpha)
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i_delta_x = -2 * (rahukaala_radius - rahukaala_width) * sin(alpha)
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x1 = image_width / 2
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y1 = image_width / 2 + rahukaala_radius
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x2 = x1 + delta_x
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y2 = y1 + delta_y
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x4 = x1
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y4 = y1 - rahukaala_width
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x3 = x4 + inner_delta_x
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y3 = y4 + inner_delta_y
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ret = f'''<path
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transform="rotate({start_deg}, {image_width / 2}, {image_width / 2})"
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class="rahukaala"
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d="M {x1} {y1}
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A {rahukaala_radius} {rahukaala_radius} {end_deg - start_deg} 0 1 {x2} {y2}
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A {sun_radius} {sun_radius} 180 1 1 {x3} {y3}
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A {rahukaala_radius - rahukaala_width} {rahukaala_radius - rahukaala_width} {end_deg - start_deg} 0 0 {x4} {y4}
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A {sun_radius} {sun_radius} 180 1 1 {x1} {y1}
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z"></path>'''
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return indent_lines(ret, indent)
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def get_svg_data(
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local_time: datetime,
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image_width: int = 700,
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@ -276,6 +325,8 @@ def get_svg_data(
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golden_color: str = '#aa842c',
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day_color: str = '#7dc5f0',
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moon_color: str = '#aaaaaa',
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rahukaala_color: str = '#ff7777',
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rahukaala_alpha: Optional[int] = None,
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local_hour_font_size: float = 16.5,
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hour_name_font_size: float = 13.37699,
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utc_hour_font_size: float = 15.0234,
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@ -293,6 +344,7 @@ def get_svg_data(
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golden_rgb = hex_to_rgb(golden_color)
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day_rgb = hex_to_rgb(day_color)
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moon_rgb = hex_to_rgb(moon_color)
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rahukaala_rgb = hex_to_rgb(rahukaala_color)
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hours = HOURS_24 if hour_24 else HOURS_AMPM
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outer_r = image_width / 2 - 3 * hour_name_font_size
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ring_width = hour_name_font_size * 3
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@ -325,6 +377,12 @@ def get_svg_data(
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noon = day_parts_dict.pop('noon')
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midnight = day_parts_dict.pop('midnight')
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if rahukaala_alpha is not None:
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value = rahukaala_alpha / value
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rahukaala_opacity = f' fill-opacity: {value:.2f};'
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else:
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rahukaala_opacity = ''
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ret = f'''<svg width="{image_width}" height="{image_width}" xmlns:xlink="http://www.w3.org/1999/xlink">
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<style>
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.hour path {{stroke: {hname_stroke_rgb}; stroke-width: {line_width};}}
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@ -344,6 +402,7 @@ def get_svg_data(
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.moon {{stroke: none; fill: {moon_rgb};}}
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.sun {{stroke: none; fill: {line_rgb};}}
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.dial {{stroke-width: 2px; stroke: {line_rgb};}}
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.rahukaala {{stroke: none; fill: {rahukaala_rgb};{rahukaala_opacity}}}
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</style>
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<defs>
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{hour_name_path(image_width, outer_r, ring_width)}
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@ -397,6 +456,12 @@ def get_svg_data(
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evening_blue_end.time(),
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)
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rahukaala_radius = outer_r / 2 + 2 * sun_radius
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rahukaala_width = 2 * sun_radius
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for start, end in get_rahukaalam_times(location.observer, local_time):
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ret += draw_rahukaala(image_width, rahukaala_radius, rahukaala_width, sun_radius, start, end)
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ret += f''' <circle cx="{image_width / 2}" cy="{image_width / 2}" r="{marker_radius}" class="marker"></circle>
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</g>
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<g>\n'''
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