owen/dotted-map-no-alaska
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add avoidOuterPins support

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8to
2020-11-04 15:26:20 -06:00
parent b72ea10108
commit 2cd9a0727e
2 changed files with 6 additions and 1 deletions
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index.js
+5 -1
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@@ -61,7 +61,7 @@ const computeGeojsonBox = (geojson) => {
}
};
function DottedMap({ height = 0, width = 0, countries = [], region, grid = 'vertical' }) {
function DottedMap({ height = 0, width = 0, countries = [], region, grid = 'vertical', avoidOuterPins = false }) {
if (height <= 0 && width <= 0) {
throw new Error('height or width is required');
}
@@ -118,6 +118,10 @@ function DottedMap({ height = 0, width = 0, countries = [], region, grid = 'vert
return {
addPin({ lat, lng, data, svgOptions }) {
const [googleX, googleY] = proj4(proj4.defs('GOOGLE'), [lng, lat]);
if (avoidOuterPins) {
const wgs84Point = proj4(proj4.defs('GOOGLE'), proj4.defs('WGS84'), [googleX, googleY])
if (!inside(wgs84Point, poly)) return;
}
let [rawX, rawY] = [(width * (googleX - X_MIN)) / X_RANGE, (height * (Y_MAX - googleY)) / Y_RANGE];
const y = Math.round(rawY / ystep);
if (y % 2 === 0 && grid === 'diagonal') {