EodashLayerControl ​

Layer visibility, opacity, and ordering panel for a map. It wraps eox-layercontrol and binds it to either the primary or compare map. The panel is hidden until a STAC collection is selected; it also handles time-step updates from the embedded eox-timecontrol and surfaces render-config changes (e.g. band assignments) to the store.

Example ​

Default usage bound to the primary map:

js
{
  id: "layer-control",
  title: "Layers",
  type: "internal",
  layout: { x: 9, y: 0, w: 3, h: 6 },
  widget: {
    name: "EodashLayerControl",
    properties: {
      tools: ["datetime", "info", "config", "legend", "opacity"],
    },
  },
}

Bound to the compare (second) map with a reduced tool set:

js
widget: {
  name: "EodashLayerControl",
  properties: {
    map: "second",
    tools: ["legend", "opacity"],
    title: "Compare layers",
  },
}

Layer Configuration Forms ​

Layers can expose configuration forms in the panel, defined through eodash Flat Styles or eodash:rasterform in the STAC metadata. Only data layers get a form, base layers and overlays are built without the form.

State persistence ​

Form values are remembered per collection and per map (main/compare), and re-applied when the map rebuilds its layers (datetime change, item selection). Opt a form out when its values are only valid for a specific item:

json
{
  "jsonform": {
    "options": { "persist_state": false }
  }
}

Item templating ​

Form definitions may contain ${...} placeholders, resolved as dotted paths against the STAC item being rendered — so one definition can serve item-dependent variants:

json
{
  "expression": {
    "type": "string",
    "enum": [
      "/${properties.sat:orbit_state}:vv",
      "/${properties.sat:orbit_state}:vh"
    ],
    "default": "/${properties.sat:orbit_state}:vv"
  }
}

For an item with "sat:orbit_state": "ascending", the form renders with /ascending:vv. {{ }} templates are untouched and still evaluated by the form at runtime. see json-editor

Properties ​

cssVars? ​

CSS custom-property overrides forwarded to the underlying eox-layercontrol element via its style attribute.

ts
optional cssVars?: Record<string, string> = {};

layoutIcon? ​

ts
optional layoutIcon?: string = mdiViewDashboard;

layoutTarget? ​

ts
optional layoutTarget?: string;

map? ​

Which map instance this control is bound to. Use "second" in a compare-mode layout.

ts
optional map?: "first" | "second" = "first";

title? ​

Heading rendered above the layer list. Set to false to hide it.

ts
optional title?: string | false = "Layers";

tools? ​

Tool tabs shown inside eox-layercontrol. Remove entries to hide individual tabs.

ts
optional tools?: string[] = ["datetime", "info", "config", "legend", "opacity"];

See also ​