Graham McIntire
cda54e3514
Replace the idealised concentric-circle range rings with a realistic per-HRRR-grid-cell reception map. For every 0.125° grid point within the band's exceptional range, the estimator computes great-circle distance, FSPL + atmospheric loss, and applies a cell-specific score adjustment of (50 - score) * 0.3 dB — score 100 gives a 15 dB ducting boost, score 0 a 15 dB penalty. Cells below the -145 dBm detection floor are dropped. The beacon map hook now renders each surviving cell as a 0.125° filled rectangle with a tooltip showing tier, Rx dBm, distance, and HRRR score, so the coverage footprint bulges where ducting conditions are good and cuts off where they aren't, instead of being a perfect circle. Falls back to score 50 for cells that don't have HRRR data yet, so the plot is always useful. Also fixes the prior all-grey-tiles regression by restoring an explicit setView() at map creation and adding a post-mount invalidateSize() for when the map is placed inside a flex container.
125 lines
4.1 KiB
Elixir
125 lines
4.1 KiB
Elixir
defmodule MicrowavepropWeb.BeaconLive.Show do
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@moduledoc false
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use MicrowavepropWeb, :live_view
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alias Microwaveprop.Beacons
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alias Microwaveprop.Beacons.Beacon
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alias Microwaveprop.Beacons.RangeEstimate
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@impl true
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def render(assigns) do
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~H"""
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<Layouts.app flash={@flash} current_scope={@current_scope}>
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<.header>
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{@beacon.callsign}
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<:subtitle>{@beacon.frequency_mhz} MHz · {@beacon.grid}</:subtitle>
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<:actions>
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<.button navigate={~p"/beacons"}>
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<.icon name="hero-arrow-left" />
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</.button>
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<.button
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:if={admin?(@current_scope)}
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variant="primary"
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navigate={~p"/beacons/#{@beacon}/edit?return_to=show"}
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>
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<.icon name="hero-pencil-square" /> Edit
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</.button>
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</:actions>
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</.header>
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<div
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id={"beacon-map-" <> @beacon.id}
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phx-hook="BeaconMap"
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phx-update="ignore"
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class="h-96 w-full rounded-lg border border-base-300 mb-2"
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data-lat={@beacon.lat}
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data-lon={@beacon.lon}
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data-label={"#{@beacon.callsign} · #{@beacon.frequency_mhz} MHz"}
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data-on-the-air={to_string(@beacon.on_the_air)}
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data-grid-step={@estimate.grid_step}
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data-cells={Jason.encode!(@estimate.cells)}
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>
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</div>
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<div class="text-xs opacity-70 mb-2 flex flex-wrap items-center gap-3">
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<span>
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Band <strong>{@estimate.band_label}</strong> ·
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EIRP <strong>{@estimate.eirp_dbm} dBm</strong> ·
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Atm loss <strong>{@estimate.atm_per_km} dB/km</strong>
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</span>
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<span>
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Beacon grid score <strong>{@estimate.center_score}</strong>
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<%= if @estimate.valid_time do %>
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at {Calendar.strftime(@estimate.valid_time, "%Y-%m-%d %H:%M UTC")}
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<% else %>
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(no HRRR data — defaulting cells to 50)
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<% end %>
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· <strong>{length(@estimate.cells)}</strong> cells rendered
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</span>
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</div>
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<div class="flex flex-wrap gap-3 text-xs mb-4">
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<%= for tier <- @estimate.tiers do %>
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<div class="flex items-center gap-1.5">
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<span
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class="inline-block w-3 h-3 rounded-sm border"
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style={"background-color: #{tier.color}; border-color: #{tier.color}"}
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>
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</span>
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<span>
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<strong>{tier.label}</strong>
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(≥ {tier.min_dbm} dBm)
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</span>
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</div>
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<% end %>
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</div>
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<.list>
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<:item title="Frequency (MHz)">{@beacon.frequency_mhz}</:item>
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<:item title="Callsign">{@beacon.callsign}</:item>
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<:item title="Grid">{@beacon.grid}</:item>
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<:item title="Latitude">{@beacon.lat}</:item>
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<:item title="Longitude">{@beacon.lon}</:item>
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<:item title="TX power (EIRP) (mW)">{@beacon.power_mw}</:item>
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<:item title="Height above ground (ft)">{@beacon.height_ft}</:item>
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<:item title="On the air">{if @beacon.on_the_air, do: "Yes", else: "No"}</:item>
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</.list>
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</Layouts.app>
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"""
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end
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@impl true
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def mount(%{"id" => id}, _session, socket) do
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if connected?(socket), do: Beacons.subscribe_beacons()
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beacon = Beacons.get_beacon!(id)
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{:ok,
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socket
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|> assign(:page_title, "Beacon")
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|> assign(:beacon, beacon)
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|> assign(:estimate, RangeEstimate.estimate(beacon))}
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end
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@impl true
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def handle_info({:updated, %Beacon{id: id} = beacon}, %{assigns: %{beacon: %{id: id}}} = socket) do
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{:noreply,
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socket
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|> assign(:beacon, beacon)
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|> assign(:estimate, RangeEstimate.estimate(beacon))}
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end
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def handle_info({:deleted, %Beacon{id: id}}, %{assigns: %{beacon: %{id: id}}} = socket) do
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{:noreply,
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socket
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|> put_flash(:error, "This beacon was deleted.")
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|> push_navigate(to: ~p"/beacons")}
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end
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def handle_info({type, %Beacon{}}, socket) when type in [:created, :updated, :deleted] do
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{:noreply, socket}
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end
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defp admin?(%{user: %{is_admin: true}}), do: true
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defp admin?(_), do: false
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end
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