mapcomplete/Customizations/JSON/LayerConfigJson.ts

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9.5 KiB
TypeScript

import {TagRenderingConfigJson} from "./TagRenderingConfigJson";
import {AndOrTagConfigJson} from "./TagConfigJson";
/**
* Configuration for a single layer
*/
export interface LayerConfigJson {
/**
* The id of this layer.
* This should be a simple, lowercase, human readable string that is used to identify the layer.
*/
id: string;
/**
* The name of this layer
* Used in the layer control panel and the 'Personal theme'.
*
* If not given, will be hidden (and thus not toggable) in the layer control
*/
name?: string | any
/**
* A description for this layer.
* Shown in the layer selections and in the personel theme
*/
description?: string | any;
/**
* This determines where the data for the layer is fetched.
* There are some options:
*
* # Query OSM directly
* source: {osmTags: "key=value"}
* will fetch all objects with given tags from OSM.
* Currently, this will create a query to overpass and fetch the data - in the future this might fetch from the OSM API
*
* # Query OSM Via the overpass API with a custom script
* source: {overpassScript: "<custom overpass tags>"} when you want to do special things. _This should be really rare_.
* This means that the data will be pulled from overpass with this script, and will ignore the osmTags for the query
* However, for the rest of the pipeline, the OsmTags will _still_ be used. This is important to enable layers etc...
*
*
* # A single geojson-file
* source: {geoJson: "https://my.source.net/some-geo-data.geojson"}
* fetches a geojson from a third party source
*
* # A tiled geojson source
* source: {geoJson: "https://my.source.net/some-tile-geojson-{layer}-{z}-{x}-{y}.geojson", geoJsonZoomLevel: 14}
* to use a tiled geojson source. The web server must offer multiple geojsons. {z}, {x} and {y} are substituted by the location; {layer} is substituted with the id of the loaded layer
*
*
* Note that both geojson-options might set a flag 'isOsmCache' indicating that the data originally comes from OSM too
*
*
* NOTE: the previous format was 'overpassTags: AndOrTagCOnfigJson | string', which is interpreted as a shorthand for source: {osmTags: "key=value"}
* While still supported, this is considered deprecated
*/
source: { osmTags: AndOrTagConfigJson | string } |
{ osmTags: AndOrTagConfigJson | string, geoJson: string, geoJsonZoomLevel?: number, isOsmCache?: boolean } |
{ osmTags: AndOrTagConfigJson | string, overpassScript: string }
/**
*
* A list of extra tags to calculate, specified as "keyToAssignTo=javascript-expression".
* There are a few extra functions available. Refer to <a>Docs/CalculatedTags.md</a> for more information
* The functions will be run in order, e.g.
* [
* "_max_overlap_m2=Math.max(...feat.overlapsWith("someOtherLayer").map(o => o.overlap))
* "_max_overlap_ratio=Number(feat._max_overlap_m2)/feat.area
* ]
*
*/
calculatedTags?: string[];
/**
* If set, this layer will not query overpass; but it'll still match the tags above which are by chance returned by other layers.
* Works well together with 'passAllFeatures', to add decoration
*/
doNotDownload?: boolean;
/**
* This tagrendering should either be 'yes' or 'no'. If 'no' is returned, then the feature will be hidden from view.
* This is useful to hide certain features from view. Important: hiding features does not work dynamically, but is only calculated when the data is first renders.
* This implies that it is not possible to hide a feature after a tagging change
*
* The default value is 'yes'
*/
isShown?: TagRenderingConfigJson;
/**
* The zoomlevel at which point the data is shown and loaded.
* Default: 0
*/
minzoom?: number;
/**
* The zoomlevel at which point the data is hidden again
* Default: 100 (thus: always visible
*/
maxzoom?: number;
/**
* The title shown in a popup for elements of this layer.
*/
title?: string | TagRenderingConfigJson;
/**
* Small icons shown next to the title.
* If not specified, the OsmLink and wikipedia links will be used by default.
* Use an empty array to hide them.
* Note that "defaults" will insert all the default titleIcons
*/
titleIcons?: (string | TagRenderingConfigJson)[];
/**
* The icon for an element.
* Note that this also doubles as the icon for this layer (rendered with the overpass-tags) ánd the icon in the presets.
*
* The result of the icon is rendered as follows:
* the resulting string is interpreted as a _list_ of items, seperated by ";". The bottommost layer is the first layer.
* As a result, on could use a generic pin, then overlay it with a specific icon.
* To make things even more practical, one can use all svgs from the folder "assets/svg" and _substitute the color_ in it.
* E.g. to draw a red pin, use "pin:#f00", to have a green circle with your icon on top, use `circle:#0f0;<path to my icon.svg>`
*
*/
icon?: string | TagRenderingConfigJson;
/**
* IconsOverlays are a list of extra icons/badges to overlay over the icon.
* The 'badge'-toggle changes their behaviour.
* If badge is set, it will be added as a 25% height icon at the bottom right of the icon, with all the badges in a flex layout.
* If badges is false, it'll be a simple overlay
*
* Note: strings are interpreted as icons, so layering and substituting is supported
*/
iconOverlays?: { if: string | AndOrTagConfigJson, then: string | TagRenderingConfigJson, badge?: boolean }[]
/**
* A string containing "width,height" or "width,height,anchorpoint" where anchorpoint is any of 'center', 'top', 'bottom', 'left', 'right', 'bottomleft','topright', ...
* Default is '40,40,center'
*/
iconSize?: string | TagRenderingConfigJson;
/**
* The rotation of an icon, useful for e.g. directions.
* Usage: as if it were a css property for 'rotate', thus has to end with 'deg', e.g. `90deg`, `{direction}deg`, `calc(90deg - {camera:direction}deg)``
*/
rotation?: string | TagRenderingConfigJson;
/**
* A HTML-fragment that is shown below the icon, for example:
* <div style="background: white; display: block">{name}</div>
*
* If the icon is undefined, then the label is shown in the center of the feature.
* Note that, if the wayhandling hides the icon then no label is shown as well.
*/
label?: string | TagRenderingConfigJson ;
/**
* The color for way-elements and SVG-elements.
* If the value starts with "--", the style of the body element will be queried for the corresponding variable instead
*/
color?: string | TagRenderingConfigJson;
/**
* The stroke-width for way-elements
*/
width?: string | TagRenderingConfigJson;
/**
* A dasharray, e.g. "5 6"
* The dasharray defines 'pixels of line, pixels of gap, pixels of line, pixels of gap',
* Default value: "" (empty string == full line)
*/
dashArray?: string | TagRenderingConfigJson
/**
* Wayhandling: should a way/area be displayed as:
* 0) The way itself
* 1) Only the centerpoint
* 2) The centerpoint and the way
*/
wayHandling?: number;
/**
* If set, this layer will pass all the features it receives onto the next layer.
* This is ideal for decoration, e.g. directionss on cameras
*/
passAllFeatures?: boolean
/**
* Presets for this layer.
* A preset shows up when clicking the map on a without data (or when right-clicking/long-pressing);
* it will prompt the user to add a new point.
*
* The most important aspect are the tags, which define which tags the new point will have;
* The title is shown in the dialog, along with the first sentence of the description.
*
* Upon confirmation, the full description is shown beneath the buttons - perfect to add pictures and examples.
*
* Note: the icon of the preset is determined automatically based on the tags and the icon above. Don't worry about that!
* NB: if no presets are defined, the popup to add new points doesn't show up at all
*/
presets?: {
/**
* The title - shown on the 'add-new'-button.
*/
title: string | any,
/**
* The tags to add. It determines the icon too
*/
tags: string[],
/**
* The _first sentence_ of the description is shown on the button of the `add` menu.
* The full description is shown in the confirmation dialog.
*
* (The first sentence is until the first '.'-character in the description)
*/
description?: string | any,
}[],
/**
* All the tag renderings.
* A tag rendering is a block that either shows the known value or asks a question.
*
* Refer to the class `TagRenderingConfigJson` to see the possibilities.
*
* Note that we can also use a string here - where the string refers to a tagrenering defined in `assets/questions/questions.json`,
* where a few very general questions are defined e.g. website, phone number, ...
*
* A special value is 'questions', which indicates the location of the questions box. If not specified, it'll be appended to the bottom of the featureInfobox.
*
*/
tagRenderings?: (string | TagRenderingConfigJson) []
}