Can you provide more details about your bug please ?

Can you provide more details about your bug please ?

前端代码：vue
具体实现代码addTdMap(view) {
// var projection = getProjection('EPSG:3857')
// var projectionExtent = projection.getExtent()
// var size = getWidth(projectionExtent) / 256
// var resolutions = new Array(19)
// var matrixIds = new Array(19)
// for (var z = 1; z < 20; ++z) {
// resolutions[z] = size / Math.pow(2, z)
// matrixIds[z] = z
// }
//t0.tianditu.gov.cn/img_w/wmts?SERVICE=WMTS&REQUEST=GetTile&VERSION=1.0.0&LAYER=img&STYLE=default&TILEMATRIXSET=w&FORMAT=tiles&TILEMATRIX={z}&TILEROW={y}&TILECOL={x}
var orthoSource1 = new itowns.WMTSSource({
url: 'http://t{0-7}.tianditu.gov.cn/img_w/wmts?tk=6e3de5b9cfca24b0f43d7c431acf56b9',
crs: 'EPSG:3857',
name: 'img',
tileMatrixSet: 'w',
format: 'tiles',
style: 'default',
})
var orthoLayer1 = new itowns.ColorLayer('Ortho1', {
source: orthoSource1,
})
view.addLayer(orthoLayer1)
},
结果问题：1、存在跨域，在openlayer和cesium加载不存在跨域问题2、多域名http://t{0-7}.tianditu.gov.cn/img_w/wmts，{0-7}自动转化一个数字，如http://t0.tianditu.gov.cn/img_w/wmts，http://t0.tianditu.gov.cn/img_w/wmts 3、如何自定义切换规则

Thank you for the issue.
We don't support "dynamic" url. We have some specific case where its handled, for example the google 3d tiles format.
There is also the XYZ that has something similar but depending on what you want to do, maybe it will be easier if you handle it yourself by generating multiple url where you replace {s} and create the layer accordingly.

ALSO, you must type in English so it makes it easier for everyone involved in this project ( english isn't my primary language neither ;) )

@liangyuan1 You can specify subdomains in your url using the following syntax: {u:0|1|2|3|4|5|6|7}

结果问题：1、存在跨域，在openlayer和cesium加载不存在跨域问题2、多域名http://t{0-7}.tianditu.gov.cn/img_w/wmts，{0-7}自动转化一个数字，如http://t0.tianditu.gov.cn/img_w/wmts，http://t0.tianditu.gov.cn/img_w/wmts 3、如何自定义切换规则

1、我认为这个错误不是itowns的问题，是天地图限制了请求频率，配置多子域名后会好点
2&3、多子域名 http://${u:t0|t1|t2|t3|t4|t5|t6|t7}.tianditu.gov.cn/img_w/wmts，

附:定义token可使用vendorSpecific参数传参,如
WMTSSource({
...
vendorSpecific:{
tk:""
}
}) , 但需要用比较新的版本itowns(≥v2.40.0)

@jailln I don't think this is an issue with iTowns, so this issue can be closed now