Graham McIntire
158ee9d323
Catalog-only system for LIDAR-derived 1m DEMs covering Texas. We do not mirror raster data — the DB stores tile metadata (URL + footprint geometry) and elevation values are streamed on-demand from public USGS 3DEP / TNRIS Cloud-Optimized GeoTIFFs via GDAL /vsicurl/ HTTP byte-range reads. Used for future tower coverage line-of-sight calculations. - Enable PostGIS extension; tile footprints indexed via GiST - Catalog sync from USGS 3DEP (primary) and TNRIS (fallback for gaps) - Tile dedup by ST_Contains so TNRIS doesn't duplicate 3DEP coverage - Single-point reads via gdallocationinfo with tile fallthrough on nodata - Grid retrieval via gdal_translate AAIGrid with multi-tile mosaicing - Monthly Oban cron worker keeps catalog fresh - gdal-bin added to runtime image; geo_postgis dep added
39 lines
945 B
Elixir
39 lines
945 B
Elixir
defmodule Towerops.Lidar.SyncLog do
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@moduledoc """
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Audit log for LIDAR catalog sync operations.
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"""
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use Ecto.Schema
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import Ecto.Changeset
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@primary_key {:id, :binary_id, autogenerate: true}
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@valid_statuses ~w(success partial failed)
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@valid_sources ~w(3dep tnris)
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schema "lidar_sync_logs" do
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field :source, :string
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field :status, :string
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field :projects_synced, :integer, default: 0
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field :tiles_upserted, :integer, default: 0
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field :errors, :map
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field :duration_ms, :integer
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field :inserted_at, :utc_datetime
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end
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def changeset(sync_log, attrs) do
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sync_log
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|> cast(attrs, [
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:source,
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:status,
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:projects_synced,
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:tiles_upserted,
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:errors,
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:duration_ms,
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:inserted_at
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])
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|> validate_required([:source, :status, :inserted_at])
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|> validate_inclusion(:source, @valid_sources)
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|> validate_inclusion(:status, @valid_statuses)
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end
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end
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