我对这里的问题标题不确定，所以如果你有更好的主意，请建议编辑。
我正在使用JavaScript和PHP构建Web应用程序;它是一种内部排序仪表板。
我编写了一个数据库查询，其结果显示如下：
我编写了一个连接到我们数据库的PHP脚本，并以JSON格式返回结果，如：
[
{
"POSTCODE":"BA14 6RU",
"ORDERS":"1"
},
{
"POSTCODE":"BH11 8NX",
"ORDERS":"20"
},
{
"POSTCODE":"BH12 4NU",
"ORDERS":"2"
},
{
"POSTCODE":"BH12 4PA",
"ORDERS":"27"
},
{
"POSTCODE":"BH15 4PT",
"ORDERS":"10"
},
{
"POSTCODE":"BH17 7BD",
"ORDERS":"17"
},
{
"POSTCODE":"BS15 4TA",
"ORDERS":"18"
},
{
"POSTCODE":"BS3 2SU",
"ORDERS":"2"
},
{
"POSTCODE":"BS3 5QY",
"ORDERS":"1"
},
{
"POSTCODE":"BS30 8XT",
"ORDERS":"2"
},
{
"POSTCODE":"C04 9HT",
"ORDERS":"14"
},
{
"POSTCODE":"CF33 4AH",
"ORDERS":"5"
},
{
"POSTCODE":"CF33 6BJ",
"ORDERS":"17"
},
{
"POSTCODE":"CF33 6BN",
"ORDERS":"12"
},
{
"POSTCODE":"CF44 6DA",
"ORDERS":"3"
},
{
"POSTCODE":"CF63 2BE",
"ORDERS":"4"
},
{
"POSTCODE":"CF83 8DW",
"ORDERS":"8"
},
{
"POSTCODE":"CM16 6NR",
"ORDERS":"8"
},
{
"POSTCODE":"CM5 9JH",
"ORDERS":"6"
},
{
"POSTCODE":"CM8 3HP",
"ORDERS":"1"
},
{
"POSTCODE":"CM8 3UW",
"ORDERS":"15"
},
{
"POSTCODE":"CO3 8ND",
"ORDERS":"4"
},
{
"POSTCODE":"CO4 5HW",
"ORDERS":"4"
},
{
"POSTCODE":"DN11 8SP",
"ORDERS":"31"
},
{
"POSTCODE":"DN41 8DG",
"ORDERS":"22"
},
{
"POSTCODE":"E15 3LX",
"ORDERS":"2"
},
{
"POSTCODE":"FN14 6LH",
"ORDERS":"5"
},
{
"POSTCODE":"GU15 2QU",
"ORDERS":"16"
},
{
"POSTCODE":"GU15 2QW",
"ORDERS":"4"
},
{
"POSTCODE":"GU35 9QF",
"ORDERS":"10"
},
{
"POSTCODE":"GU51 3RN",
"ORDERS":"10"
},
{
"POSTCODE":"HA2 9EF",
"ORDERS":"7"
},
{
"POSTCODE":"HA4 0JS",
"ORDERS":"2"
},
{
"POSTCODE":"HP11 1EL",
"ORDERS":"3"
},
{
"POSTCODE":"HP6 6JQ",
"ORDERS":"6"
},
{
"POSTCODE":"IP7 6RL",
"ORDERS":"8"
},
{
"POSTCODE":"LE6 0JL",
"ORDERS":"17"
},
{
"POSTCODE":"LN6 3RY",
"ORDERS":"9"
},
{
"POSTCODE":"ME12 1LY",
"ORDERS":"1"
},
{
"POSTCODE":"N17 9LJ",
"ORDERS":"5"
},
{
"POSTCODE":"NG24 2DZ",
"ORDERS":"3"
},
{
"POSTCODE":"NG31 9SE",
"ORDERS":"1"
},
{
"POSTCODE":"NN1 2JW",
"ORDERS":"3"
},
{
"POSTCODE":"NN11 4HU",
"ORDERS":"5"
},
{
"POSTCODE":"NP11 4SB",
"ORDERS":"11"
},
{
"POSTCODE":"NP26 3TF",
"ORDERS":"1"
},
{
"POSTCODE":"NP44 1TY",
"ORDERS":"13"
},
{
"POSTCODE":"NR6 6AG",
"ORDERS":"1"
},
{
"POSTCODE":"NR6 6NN",
"ORDERS":"6"
},
{
"POSTCODE":"PE1 5YB",
"ORDERS":"3"
},
{
"POSTCODE":"PE7 3EL",
"ORDERS":"15"
},
{
"POSTCODE":"PO13 0FG",
"ORDERS":"2"
},
{
"POSTCODE":"PO14 1FD",
"ORDERS":"4"
},
{
"POSTCODE":"PO14 1NP",
"ORDERS":"4"
},
{
"POSTCODE":"PO16 8TT",
"ORDERS":"24"
},
{
"POSTCODE":"PO4 8PY",
"ORDERS":"5"
},
{
"POSTCODE":"PO6 1SQ",
"ORDERS":"11"
},
{
"POSTCODE":"RG1 8EQ",
"ORDERS":"22"
},
{
"POSTCODE":"RG1 8LG",
"ORDERS":"4"
},
{
"POSTCODE":"RG12 1RL",
"ORDERS":"3"
},
{
"POSTCODE":"RG2 OHG",
"ORDERS":"8"
},
{
"POSTCODE":"RG24 7AT",
"ORDERS":"5"
},
{
"POSTCODE":"RG24 8NA",
"ORDERS":"1"
},
{
"POSTCODE":"RG7 1PQ",
"ORDERS":"1"
},
{
"POSTCODE":"RG7 4AZ",
"ORDERS":"1"
},
{
"POSTCODE":"RG9 5LA",
"ORDERS":"1"
},
{
"POSTCODE":"RH4 1QT",
"ORDERS":"7"
},
{
"POSTCODE":"S015 3AS",
"ORDERS":"3"
},
{
"POSTCODE":"S030 2PA",
"ORDERS":"3"
},
{
"POSTCODE":"SA1 3JA",
"ORDERS":"2"
},
{
"POSTCODE":"SA10 6RR",
"ORDERS":"2"
},
{
"POSTCODE":"SA10 7DN",
"ORDERS":"10"
},
{
"POSTCODE":"SA12 6LN",
"ORDERS":"1"
},
{
"POSTCODE":"SA14 6RB",
"ORDERS":"11"
},
{
"POSTCODE":"SA14 8LQ",
"ORDERS":"2"
},
{
"POSTCODE":"SA18 2HX",
"ORDERS":"2"
},
{
"POSTCODE":"SA18 3SJ",
"ORDERS":"3"
},
{
"POSTCODE":"SA4 9DW",
"ORDERS":"8"
},
{
"POSTCODE":"SA4 9WF",
"ORDERS":"6"
},
{
"POSTCODE":"SA48 8LT",
"ORDERS":"6"
},
{
"POSTCODE":"SA5 4DL",
"ORDERS":"1"
},
{
"POSTCODE":"SA5 4SF",
"ORDERS":"3"
},
{
"POSTCODE":"SA5 8JY",
"ORDERS":"2"
},
{
"POSTCODE":"SA6 5BQ",
"ORDERS":"2"
},
{
"POSTCODE":"SA6 8QR",
"ORDERS":"26"
},
{
"POSTCODE":"SA6 8RF",
"ORDERS":"13"
},
{
"POSTCODE":"SA7 0AE",
"ORDERS":"2"
},
{
"POSTCODE":"SA7 9FU",
"ORDERS":"1"
},
{
"POSTCODE":"SA7 9QY",
"ORDERS":"3"
},
{
"POSTCODE":"SA8 4EZ",
"ORDERS":"5"
},
{
"POSTCODE":"SN2 2NP",
"ORDERS":"34"
},
{
"POSTCODE":"SN2 2PQ",
"ORDERS":"2"
},
{
"POSTCODE":"SO30 2PA",
"ORDERS":"17"
},
{
"POSTCODE":"SO32 2QE",
"ORDERS":"5"
},
{
"POSTCODE":"SS13 1DJ",
"ORDERS":"3"
},
{
"POSTCODE":"SS14 3DB",
"ORDERS":"3"
},
{
"POSTCODE":"SS2 5RN",
"ORDERS":"38"
},
{
"POSTCODE":"SS6 7UY",
"ORDERS":"7"
},
{
"POSTCODE":"TW17 8RX",
"ORDERS":"21"
},
{
"POSTCODE":"WD1 8SR",
"ORDERS":"2"
},
{
"POSTCODE":null,
"ORDERS":"35"
}
]
我需要显示一张英国地图（技术上我只需要英格兰和威尔士），并展示我们今天提供的圈子。
圈子需要大或小，这取决于我们与其他邮政编码相比，我们提供给该邮政编码的订单数量，还需要包含订单数量。
那里有什么我可以用来做这种事吗？
答案 0 :(得分：1)
您正在寻找的是热图（https://developers.google.com/maps/documentation/javascript/examples/layer-heatmap）。谷歌地图有很多很好的插件可以帮到你。您也可以尝试使用MarkerCluster（http://googlegeodevelopers.blogspot.com/2009/04/markerclusterer-solution-to-too-many.html）。
更简单的解决方案是使用一个圆形的自定义标记图标，并根据该邮政编码的交付次数更改其大小。