mapbox-gl
Version:
A WebGL interactive maps library
132 lines (124 loc) • 11 kB
JavaScript
;
// Font data From Hershey Simplex Font
// http://paulbourke.net/dataformats/hershey/
var simplexFont = {
" ": [16, []],
"!": [10, [5, 21, 5, 7, -1, -1, 5, 2, 4, 1, 5, 0, 6, 1, 5, 2]],
"\"": [16, [4, 21, 4, 14, -1, -1, 12, 21, 12, 14]],
"#": [21, [11, 25, 4, -7, -1, -1, 17, 25, 10, -7, -1, -1, 4, 12, 18, 12, -1, -1, 3, 6, 17, 6]],
"$": [20, [8, 25, 8, -4, -1, -1, 12, 25, 12, -4, -1, -1, 17, 18, 15, 20, 12, 21, 8, 21, 5, 20, 3, 18, 3, 16, 4, 14, 5, 13, 7, 12, 13, 10, 15, 9, 16, 8, 17, 6, 17, 3, 15, 1, 12, 0, 8, 0, 5, 1, 3, 3]],
"%": [24, [21, 21, 3, 0, -1, -1, 8, 21, 10, 19, 10, 17, 9, 15, 7, 14, 5, 14, 3, 16, 3, 18, 4, 20, 6, 21, 8, 21, 10, 20, 13, 19, 16, 19, 19, 20, 21, 21, -1, -1, 17, 7, 15, 6, 14, 4, 14, 2, 16, 0, 18, 0, 20, 1, 21, 3, 21, 5, 19, 7, 17, 7]],
"&": [26, [23, 12, 23, 13, 22, 14, 21, 14, 20, 13, 19, 11, 17, 6, 15, 3, 13, 1, 11, 0, 7, 0, 5, 1, 4, 2, 3, 4, 3, 6, 4, 8, 5, 9, 12, 13, 13, 14, 14, 16, 14, 18, 13, 20, 11, 21, 9, 20, 8, 18, 8, 16, 9, 13, 11, 10, 16, 3, 18, 1, 20, 0, 22, 0, 23, 1, 23, 2]],
"'": [10, [5, 19, 4, 20, 5, 21, 6, 20, 6, 18, 5, 16, 4, 15]],
"(": [14, [11, 25, 9, 23, 7, 20, 5, 16, 4, 11, 4, 7, 5, 2, 7, -2, 9, -5, 11, -7]],
")": [14, [3, 25, 5, 23, 7, 20, 9, 16, 10, 11, 10, 7, 9, 2, 7, -2, 5, -5, 3, -7]],
"*": [16, [8, 21, 8, 9, -1, -1, 3, 18, 13, 12, -1, -1, 13, 18, 3, 12]],
"+": [26, [13, 18, 13, 0, -1, -1, 4, 9, 22, 9]],
",": [10, [6, 1, 5, 0, 4, 1, 5, 2, 6, 1, 6, -1, 5, -3, 4, -4]],
"-": [26, [4, 9, 22, 9]],
".": [10, [5, 2, 4, 1, 5, 0, 6, 1, 5, 2]],
"/": [22, [20, 25, 2, -7]],
"0": [20, [9, 21, 6, 20, 4, 17, 3, 12, 3, 9, 4, 4, 6, 1, 9, 0, 11, 0, 14, 1, 16, 4, 17, 9, 17, 12, 16, 17, 14, 20, 11, 21, 9, 21]],
"1": [20, [6, 17, 8, 18, 11, 21, 11, 0]],
"2": [20, [4, 16, 4, 17, 5, 19, 6, 20, 8, 21, 12, 21, 14, 20, 15, 19, 16, 17, 16, 15, 15, 13, 13, 10, 3, 0, 17, 0]],
"3": [20, [5, 21, 16, 21, 10, 13, 13, 13, 15, 12, 16, 11, 17, 8, 17, 6, 16, 3, 14, 1, 11, 0, 8, 0, 5, 1, 4, 2, 3, 4]],
"4": [20, [13, 21, 3, 7, 18, 7, -1, -1, 13, 21, 13, 0]],
"5": [20, [15, 21, 5, 21, 4, 12, 5, 13, 8, 14, 11, 14, 14, 13, 16, 11, 17, 8, 17, 6, 16, 3, 14, 1, 11, 0, 8, 0, 5, 1, 4, 2, 3, 4]],
"6": [20, [16, 18, 15, 20, 12, 21, 10, 21, 7, 20, 5, 17, 4, 12, 4, 7, 5, 3, 7, 1, 10, 0, 11, 0, 14, 1, 16, 3, 17, 6, 17, 7, 16, 10, 14, 12, 11, 13, 10, 13, 7, 12, 5, 10, 4, 7]],
"7": [20, [17, 21, 7, 0, -1, -1, 3, 21, 17, 21]],
"8": [20, [8, 21, 5, 20, 4, 18, 4, 16, 5, 14, 7, 13, 11, 12, 14, 11, 16, 9, 17, 7, 17, 4, 16, 2, 15, 1, 12, 0, 8, 0, 5, 1, 4, 2, 3, 4, 3, 7, 4, 9, 6, 11, 9, 12, 13, 13, 15, 14, 16, 16, 16, 18, 15, 20, 12, 21, 8, 21]],
"9": [20, [16, 14, 15, 11, 13, 9, 10, 8, 9, 8, 6, 9, 4, 11, 3, 14, 3, 15, 4, 18, 6, 20, 9, 21, 10, 21, 13, 20, 15, 18, 16, 14, 16, 9, 15, 4, 13, 1, 10, 0, 8, 0, 5, 1, 4, 3]],
":": [10, [5, 14, 4, 13, 5, 12, 6, 13, 5, 14, -1, -1, 5, 2, 4, 1, 5, 0, 6, 1, 5, 2]],
";": [10, [5, 14, 4, 13, 5, 12, 6, 13, 5, 14, -1, -1, 6, 1, 5, 0, 4, 1, 5, 2, 6, 1, 6, -1, 5, -3, 4, -4]],
"<": [24, [20, 18, 4, 9, 20, 0]],
"=": [26, [4, 12, 22, 12, -1, -1, 4, 6, 22, 6]],
">": [24, [4, 18, 20, 9, 4, 0]],
"?": [18, [3, 16, 3, 17, 4, 19, 5, 20, 7, 21, 11, 21, 13, 20, 14, 19, 15, 17, 15, 15, 14, 13, 13, 12, 9, 10, 9, 7, -1, -1, 9, 2, 8, 1, 9, 0, 10, 1, 9, 2]],
"@": [27, [18, 13, 17, 15, 15, 16, 12, 16, 10, 15, 9, 14, 8, 11, 8, 8, 9, 6, 11, 5, 14, 5, 16, 6, 17, 8, -1, -1, 12, 16, 10, 14, 9, 11, 9, 8, 10, 6, 11, 5, -1, -1, 18, 16, 17, 8, 17, 6, 19, 5, 21, 5, 23, 7, 24, 10, 24, 12, 23, 15, 22, 17, 20, 19, 18, 20, 15, 21, 12, 21, 9, 20, 7, 19, 5, 17, 4, 15, 3, 12, 3, 9, 4, 6, 5, 4, 7, 2, 9, 1, 12, 0, 15, 0, 18, 1, 20, 2, 21, 3, -1, -1, 19, 16, 18, 8, 18, 6, 19, 5]],
"A": [18, [9, 21, 1, 0, -1, -1, 9, 21, 17, 0, -1, -1, 4, 7, 14, 7]],
"B": [21, [4, 21, 4, 0, -1, -1, 4, 21, 13, 21, 16, 20, 17, 19, 18, 17, 18, 15, 17, 13, 16, 12, 13, 11, -1, -1, 4, 11, 13, 11, 16, 10, 17, 9, 18, 7, 18, 4, 17, 2, 16, 1, 13, 0, 4, 0]],
"C": [21, [18, 16, 17, 18, 15, 20, 13, 21, 9, 21, 7, 20, 5, 18, 4, 16, 3, 13, 3, 8, 4, 5, 5, 3, 7, 1, 9, 0, 13, 0, 15, 1, 17, 3, 18, 5]],
"D": [21, [4, 21, 4, 0, -1, -1, 4, 21, 11, 21, 14, 20, 16, 18, 17, 16, 18, 13, 18, 8, 17, 5, 16, 3, 14, 1, 11, 0, 4, 0]],
"E": [19, [4, 21, 4, 0, -1, -1, 4, 21, 17, 21, -1, -1, 4, 11, 12, 11, -1, -1, 4, 0, 17, 0]],
"F": [18, [4, 21, 4, 0, -1, -1, 4, 21, 17, 21, -1, -1, 4, 11, 12, 11]],
"G": [21, [18, 16, 17, 18, 15, 20, 13, 21, 9, 21, 7, 20, 5, 18, 4, 16, 3, 13, 3, 8, 4, 5, 5, 3, 7, 1, 9, 0, 13, 0, 15, 1, 17, 3, 18, 5, 18, 8, -1, -1, 13, 8, 18, 8]],
"H": [22, [4, 21, 4, 0, -1, -1, 18, 21, 18, 0, -1, -1, 4, 11, 18, 11]],
"I": [8, [4, 21, 4, 0]],
"J": [16, [12, 21, 12, 5, 11, 2, 10, 1, 8, 0, 6, 0, 4, 1, 3, 2, 2, 5, 2, 7]],
"K": [21, [4, 21, 4, 0, -1, -1, 18, 21, 4, 7, -1, -1, 9, 12, 18, 0]],
"L": [17, [4, 21, 4, 0, -1, -1, 4, 0, 16, 0]],
"M": [24, [4, 21, 4, 0, -1, -1, 4, 21, 12, 0, -1, -1, 20, 21, 12, 0, -1, -1, 20, 21, 20, 0]],
"N": [22, [4, 21, 4, 0, -1, -1, 4, 21, 18, 0, -1, -1, 18, 21, 18, 0]],
"O": [22, [9, 21, 7, 20, 5, 18, 4, 16, 3, 13, 3, 8, 4, 5, 5, 3, 7, 1, 9, 0, 13, 0, 15, 1, 17, 3, 18, 5, 19, 8, 19, 13, 18, 16, 17, 18, 15, 20, 13, 21, 9, 21]],
"P": [21, [4, 21, 4, 0, -1, -1, 4, 21, 13, 21, 16, 20, 17, 19, 18, 17, 18, 14, 17, 12, 16, 11, 13, 10, 4, 10]],
"Q": [22, [9, 21, 7, 20, 5, 18, 4, 16, 3, 13, 3, 8, 4, 5, 5, 3, 7, 1, 9, 0, 13, 0, 15, 1, 17, 3, 18, 5, 19, 8, 19, 13, 18, 16, 17, 18, 15, 20, 13, 21, 9, 21, -1, -1, 12, 4, 18, -2]],
"R": [21, [4, 21, 4, 0, -1, -1, 4, 21, 13, 21, 16, 20, 17, 19, 18, 17, 18, 15, 17, 13, 16, 12, 13, 11, 4, 11, -1, -1, 11, 11, 18, 0]],
"S": [20, [17, 18, 15, 20, 12, 21, 8, 21, 5, 20, 3, 18, 3, 16, 4, 14, 5, 13, 7, 12, 13, 10, 15, 9, 16, 8, 17, 6, 17, 3, 15, 1, 12, 0, 8, 0, 5, 1, 3, 3]],
"T": [16, [8, 21, 8, 0, -1, -1, 1, 21, 15, 21]],
"U": [22, [4, 21, 4, 6, 5, 3, 7, 1, 10, 0, 12, 0, 15, 1, 17, 3, 18, 6, 18, 21]],
"V": [18, [1, 21, 9, 0, -1, -1, 17, 21, 9, 0]],
"W": [24, [2, 21, 7, 0, -1, -1, 12, 21, 7, 0, -1, -1, 12, 21, 17, 0, -1, -1, 22, 21, 17, 0]],
"X": [20, [3, 21, 17, 0, -1, -1, 17, 21, 3, 0]],
"Y": [18, [1, 21, 9, 11, 9, 0, -1, -1, 17, 21, 9, 11]],
"Z": [20, [17, 21, 3, 0, -1, -1, 3, 21, 17, 21, -1, -1, 3, 0, 17, 0]],
"[": [14, [4, 25, 4, -7, -1, -1, 5, 25, 5, -7, -1, -1, 4, 25, 11, 25, -1, -1, 4, -7, 11, -7]],
"\\": [14, [0, 21, 14, -3]],
"]": [14, [9, 25, 9, -7, -1, -1, 10, 25, 10, -7, -1, -1, 3, 25, 10, 25, -1, -1, 3, -7, 10, -7]],
"^": [16, [6, 15, 8, 18, 10, 15, -1, -1, 3, 12, 8, 17, 13, 12, -1, -1, 8, 17, 8, 0]],
"_": [16, [0, -2, 16, -2]],
"`": [10, [6, 21, 5, 20, 4, 18, 4, 16, 5, 15, 6, 16, 5, 17]],
"a": [19, [15, 14, 15, 0, -1, -1, 15, 11, 13, 13, 11, 14, 8, 14, 6, 13, 4, 11, 3, 8, 3, 6, 4, 3, 6, 1, 8, 0, 11, 0, 13, 1, 15, 3]],
"b": [19, [4, 21, 4, 0, -1, -1, 4, 11, 6, 13, 8, 14, 11, 14, 13, 13, 15, 11, 16, 8, 16, 6, 15, 3, 13, 1, 11, 0, 8, 0, 6, 1, 4, 3]],
"c": [18, [15, 11, 13, 13, 11, 14, 8, 14, 6, 13, 4, 11, 3, 8, 3, 6, 4, 3, 6, 1, 8, 0, 11, 0, 13, 1, 15, 3]],
"d": [19, [15, 21, 15, 0, -1, -1, 15, 11, 13, 13, 11, 14, 8, 14, 6, 13, 4, 11, 3, 8, 3, 6, 4, 3, 6, 1, 8, 0, 11, 0, 13, 1, 15, 3]],
"e": [18, [3, 8, 15, 8, 15, 10, 14, 12, 13, 13, 11, 14, 8, 14, 6, 13, 4, 11, 3, 8, 3, 6, 4, 3, 6, 1, 8, 0, 11, 0, 13, 1, 15, 3]],
"f": [12, [10, 21, 8, 21, 6, 20, 5, 17, 5, 0, -1, -1, 2, 14, 9, 14]],
"g": [19, [15, 14, 15, -2, 14, -5, 13, -6, 11, -7, 8, -7, 6, -6, -1, -1, 15, 11, 13, 13, 11, 14, 8, 14, 6, 13, 4, 11, 3, 8, 3, 6, 4, 3, 6, 1, 8, 0, 11, 0, 13, 1, 15, 3]],
"h": [19, [4, 21, 4, 0, -1, -1, 4, 10, 7, 13, 9, 14, 12, 14, 14, 13, 15, 10, 15, 0]],
"i": [8, [3, 21, 4, 20, 5, 21, 4, 22, 3, 21, -1, -1, 4, 14, 4, 0]],
"j": [10, [5, 21, 6, 20, 7, 21, 6, 22, 5, 21, -1, -1, 6, 14, 6, -3, 5, -6, 3, -7, 1, -7]],
"k": [17, [4, 21, 4, 0, -1, -1, 14, 14, 4, 4, -1, -1, 8, 8, 15, 0]],
"l": [8, [4, 21, 4, 0]],
"m": [30, [4, 14, 4, 0, -1, -1, 4, 10, 7, 13, 9, 14, 12, 14, 14, 13, 15, 10, 15, 0, -1, -1, 15, 10, 18, 13, 20, 14, 23, 14, 25, 13, 26, 10, 26, 0]],
"n": [19, [4, 14, 4, 0, -1, -1, 4, 10, 7, 13, 9, 14, 12, 14, 14, 13, 15, 10, 15, 0]],
"o": [19, [8, 14, 6, 13, 4, 11, 3, 8, 3, 6, 4, 3, 6, 1, 8, 0, 11, 0, 13, 1, 15, 3, 16, 6, 16, 8, 15, 11, 13, 13, 11, 14, 8, 14]],
"p": [19, [4, 14, 4, -7, -1, -1, 4, 11, 6, 13, 8, 14, 11, 14, 13, 13, 15, 11, 16, 8, 16, 6, 15, 3, 13, 1, 11, 0, 8, 0, 6, 1, 4, 3]],
"q": [19, [15, 14, 15, -7, -1, -1, 15, 11, 13, 13, 11, 14, 8, 14, 6, 13, 4, 11, 3, 8, 3, 6, 4, 3, 6, 1, 8, 0, 11, 0, 13, 1, 15, 3]],
"r": [13, [4, 14, 4, 0, -1, -1, 4, 8, 5, 11, 7, 13, 9, 14, 12, 14]],
"s": [17, [14, 11, 13, 13, 10, 14, 7, 14, 4, 13, 3, 11, 4, 9, 6, 8, 11, 7, 13, 6, 14, 4, 14, 3, 13, 1, 10, 0, 7, 0, 4, 1, 3, 3]],
"t": [12, [5, 21, 5, 4, 6, 1, 8, 0, 10, 0, -1, -1, 2, 14, 9, 14]],
"u": [19, [4, 14, 4, 4, 5, 1, 7, 0, 10, 0, 12, 1, 15, 4, -1, -1, 15, 14, 15, 0]],
"v": [16, [2, 14, 8, 0, -1, -1, 14, 14, 8, 0]],
"w": [22, [3, 14, 7, 0, -1, -1, 11, 14, 7, 0, -1, -1, 11, 14, 15, 0, -1, -1, 19, 14, 15, 0]],
"x": [17, [3, 14, 14, 0, -1, -1, 14, 14, 3, 0]],
"y": [16, [2, 14, 8, 0, -1, -1, 14, 14, 8, 0, 6, -4, 4, -6, 2, -7, 1, -7]],
"z": [17, [14, 14, 3, 0, -1, -1, 3, 14, 14, 14, -1, -1, 3, 0, 14, 0]],
"{": [14, [9, 25, 7, 24, 6, 23, 5, 21, 5, 19, 6, 17, 7, 16, 8, 14, 8, 12, 6, 10, -1, -1, 7, 24, 6, 22, 6, 20, 7, 18, 8, 17, 9, 15, 9, 13, 8, 11, 4, 9, 8, 7, 9, 5, 9, 3, 8, 1, 7, 0, 6, -2, 6, -4, 7, -6, -1, -1, 6, 8, 8, 6, 8, 4, 7, 2, 6, 1, 5, -1, 5, -3, 6, -5, 7, -6, 9, -7]],
"|": [8, [4, 25, 4, -7]],
"}": [14, [5, 25, 7, 24, 8, 23, 9, 21, 9, 19, 8, 17, 7, 16, 6, 14, 6, 12, 8, 10, -1, -1, 7, 24, 8, 22, 8, 20, 7, 18, 6, 17, 5, 15, 5, 13, 6, 11, 10, 9, 6, 7, 5, 5, 5, 3, 6, 1, 7, 0, 8, -2, 8, -4, 7, -6, -1, -1, 8, 8, 6, 6, 6, 4, 7, 2, 8, 1, 9, -1, 9, -3, 8, -5, 7, -6, 5, -7]],
"~": [24, [3, 6, 3, 8, 4, 11, 6, 12, 8, 12, 10, 11, 14, 8, 16, 7, 18, 7, 20, 8, 21, 10, -1, -1, 3, 8, 4, 10, 6, 11, 8, 11, 10, 10, 14, 7, 16, 6, 18, 6, 20, 7, 21, 10, 21, 12]]
};
module.exports = function textVertices(text, left, baseline, scale) {
scale = scale || 1;
var strokes = [],
i, len, j, len2, glyph, x, y, prev;
for (i = 0, len = text.length; i < len; i++) {
glyph = simplexFont[text[i]];
if (!glyph) continue;
prev = null;
for (j = 0, len2 = glyph[1].length; j < len2; j += 2) {
if (glyph[1][j] === -1 && glyph[1][j + 1] === -1) {
prev = null;
} else {
x = left + glyph[1][j] * scale;
y = baseline - glyph[1][j + 1] * scale;
if (prev) {
strokes.push(prev.x, prev.y, x, y);
}
prev = {x: x, y: y};
}
}
left += glyph[0] * scale;
}
return strokes;
};