67 lines
1.8 KiB
JavaScript
67 lines
1.8 KiB
JavaScript
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import constant from "./constant.js";
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import {withPath} from "./path.js";
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import asterisk from "./symbol/asterisk.js";
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import circle from "./symbol/circle.js";
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import cross from "./symbol/cross.js";
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import diamond from "./symbol/diamond.js";
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import diamond2 from "./symbol/diamond2.js";
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import plus from "./symbol/plus.js";
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import square from "./symbol/square.js";
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import square2 from "./symbol/square2.js";
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import star from "./symbol/star.js";
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import triangle from "./symbol/triangle.js";
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import triangle2 from "./symbol/triangle2.js";
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import wye from "./symbol/wye.js";
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import times from "./symbol/times.js";
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// These symbols are designed to be filled.
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export const symbolsFill = [
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circle,
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cross,
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diamond,
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square,
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star,
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triangle,
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wye
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];
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// These symbols are designed to be stroked (with a width of 1.5px and round caps).
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export const symbolsStroke = [
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circle,
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plus,
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times,
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triangle2,
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asterisk,
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square2,
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diamond2
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];
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export default function Symbol(type, size) {
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let context = null,
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path = withPath(symbol);
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type = typeof type === "function" ? type : constant(type || circle);
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size = typeof size === "function" ? size : constant(size === undefined ? 64 : +size);
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function symbol() {
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let buffer;
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if (!context) context = buffer = path();
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type.apply(this, arguments).draw(context, +size.apply(this, arguments));
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if (buffer) return context = null, buffer + "" || null;
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}
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symbol.type = function(_) {
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return arguments.length ? (type = typeof _ === "function" ? _ : constant(_), symbol) : type;
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};
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symbol.size = function(_) {
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return arguments.length ? (size = typeof _ === "function" ? _ : constant(+_), symbol) : size;
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};
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symbol.context = function(_) {
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return arguments.length ? (context = _ == null ? null : _, symbol) : context;
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};
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return symbol;
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}
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