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Add sources/layers back to OS map style file (#1194)

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Vim 2022-01-27 17:13:25 -05:00 • committed by GitHub
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98
client/src/data/getOSBaseMap.tsx
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@ -43,6 +43,34 @@ export const getOSBaseMap = () : Style => {
'maxzoom': constants.GLOBAL_MAX_ZOOM, 'maxzoom': constants.GLOBAL_MAX_ZOOM,
}, },
// The High zoom source:
[constants.HIGH_ZOOM_SOURCE_NAME]: {
// It is only shown at high zoom levels to avoid performance issues at lower zooms
'type': 'vector',
// Our current tippecanoe command does not set an id.
// The below line promotes the GEOID10 property to the ID
'promoteId': constants.GEOID_PROPERTY,
'tiles': [constants.FEATURE_TILE_HIGH_ZOOM_URL],
// Setting maxzoom here enables 'overzooming'
// e.g. continued zooming beyond the max bounds.
// More here: https://docs.mapbox.com/help/glossary/overzoom/
'minzoom': constants.GLOBAL_MIN_ZOOM_HIGH,
'maxzoom': constants.GLOBAL_MAX_ZOOM_HIGH,
},
// The Low zoom source:
[constants.LOW_ZOOM_SOURCE_NAME]: {
// "Score-low" represents a tileset at the level of bucketed tracts.
// census block group information is `dissolve`d into tracts, then
// each tract is `dissolve`d into one of ten buckets. It is meant
// to give us a favorable tradeoff between performance and fidelity.
'type': 'vector',
'promoteId': constants.GEOID_PROPERTY,
'tiles': [constants.FEATURE_TILE_LOW_ZOOM_URL],
'minzoom': constants.GLOBAL_MIN_ZOOM_LOW,
'maxzoom': constants.GLOBAL_MAX_ZOOM_LOW,
},
// The labels source: // The labels source:
'labels': { 'labels': {
'type': 'raster', 'type': 'raster',
@ -63,6 +91,76 @@ export const getOSBaseMap = () : Style => {
'maxzoom': constants.GLOBAL_MAX_ZOOM, 'maxzoom': constants.GLOBAL_MAX_ZOOM,
}, },
/**
* High zoom layer - non-prioritized features only
*/
{
'id': constants.HIGH_ZOOM_LAYER_ID,
'source': constants.HIGH_ZOOM_SOURCE_NAME,
'source-layer': constants.SCORE_SOURCE_LAYER,
/**
* This shows features where the high score < score boundary threshold.
* In other words, this filter out prioritized features
*/
'filter': ['all',
['<', constants.SCORE_PROPERTY_HIGH, constants.SCORE_BOUNDARY_THRESHOLD],
],
'type': 'fill',
'paint': {
'fill-opacity': constants.NON_PRIORITIZED_FEATURE_FILL_OPACITY,
},
'minzoom': constants.GLOBAL_MIN_ZOOM_HIGH,
},
/**
* High zoom layer - prioritized features only
*/
{
'id': constants.PRIORITIZED_HIGH_ZOOM_LAYER_ID,
'source': constants.HIGH_ZOOM_SOURCE_NAME,
'source-layer': constants.SCORE_SOURCE_LAYER,
/**
* This shows features where the high score > score boundary threshold.
* In other words, this filter out non-prioritized features
*/
'filter': ['all',
['>', constants.SCORE_PROPERTY_HIGH, constants.SCORE_BOUNDARY_THRESHOLD],
],
'type': 'fill',
'paint': {
'fill-color': constants.PRIORITIZED_FEATURE_FILL_COLOR,
'fill-opacity': constants.HIGH_ZOOM_PRIORITIZED_FEATURE_FILL_OPACITY,
},
'minzoom': constants.GLOBAL_MIN_ZOOM_HIGH,
},
/**
* Low zoom layer - prioritized features only
*/
{
'id': constants.LOW_ZOOM_LAYER_ID,
'source': constants.LOW_ZOOM_SOURCE_NAME,
'source-layer': constants.SCORE_SOURCE_LAYER,
/**
* This shows features where the low score > score boundary threshold.
* In other words, this filter out non-prioritized features
*/
'filter': ['all',
['>', constants.SCORE_PROPERTY_LOW, constants.SCORE_BOUNDARY_THRESHOLD],
],
'type': 'fill',
'paint': {
'fill-color': constants.PRIORITIZED_FEATURE_FILL_COLOR,
'fill-opacity': constants.LOW_ZOOM_PRIORITIZED_FEATURE_FILL_OPACITY,
},
'minzoom': constants.GLOBAL_MIN_ZOOM_LOW,
'maxzoom': constants.GLOBAL_MAX_ZOOM_LOW,
},
// A layer for labels only // A layer for labels only
{ {
'id': 'labels-only-layer', 'id': 'labels-only-layer',