5. Mapfile 架构¶
完整的映射文件架构如下所示。也可以直接从此链接下载- mapfile.json . 当前架构对最新版本的MapServer（7.2）有效。开发路线图上有为不同版本的MapServer创建架构的计划，因此可以针对MapServer的较旧或较新版本验证映射文件，以查看它们是否仍然有效。
下面所示的mapfile架构计划作为正式的mapfile语言架构提出，但须经由mapserver psc（项目指导委员会）投票决定。有关该架构的更多详细信息，请参见草案RFC（征求意见稿），网址： MS RFC 123:mapfile json模式 .
{
"additionalProperties": false,
"type": "object",
"$schema": "http://json-schema.org/schema#",
"patternProperties": {
"^__[a-z]+__$": {}
},
"properties": {
"projection": {
"oneOf": [
{
"minItems": 1,
"items": {
"type": "string"
},
"type": "array"
},
{
"enum": [
"auto"
]
}
]
},
"reference": {
"type": "object"
},
"defresolution": {
"type": "integer"
},
"symbols": {
"items": {
"additionalProperties": false,
"type": "object",
"patternProperties": {
"^__[a-z]+__$": {}
},
"properties": {
"include": {
"items": {
"type": "string"
},
"type": "array"
},
"anchorpoint": {
"minItems": 2,
"items": [
{
"minimum": 0,
"type": "number",
"maximum": 1
}
],
"type": "array",
"maxItems": 2
},
"name": {
"type": "string"
},
"__type__": {
"enum": [
"symbol"
]
},
"image": {
"type": "string"
},
"character": {
"minLength": 1,
"type": "string",
"maxLength": 1
},
"antialias": {
"type": "boolean"
},
"points": {
"items": {
"items": {
"minItems": 2,
"type": "number",
"maxItems": 2
},
"type": "array"
},
"type": "array"
},
"backgroundcolor": {
"oneOf": [
{
"minItems": 3,
"items": {
"minimum": -1,
"type": "number",
"maximum": 255
},
"type": "array",
"maxItems": 3
},
{
"pattern": "^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})$",
"type": "string",
"example": "#aa33cc"
}
]
},
"font": {
"type": "string"
},
"type": {
"enum": [
"ellipse",
"hatch",
"pixmap",
"svg",
"truetype",
"vector"
]
},
"transparent": {
"type": "integer"
},
"filled": {
"type": "boolean"
}
}
},
"type": "array"
},
"outputformats": {
"items": {
"type": "object"
},
"type": "array"
},
"transparent": {
"enum": [
"on",
"off"
],
"type": "string"
},
"imagetype": {
"type": "string"
},
"size": {
"minItems": 2,
"items": {
"type": "integer"
},
"type": "array",
"maxItems": 2
},
"layers": {
"items": {
"additionalProperties": false,
"type": "object",
"patternProperties": {
"^__[a-z]+__$": {}
},
"properties": {
"toleranceunits": {
"enum": [
"pixels",
"feet",
"inches",
"kilometers",
"meters",
"miles",
"nauticalmiles",
"dd"
]
},
"tilesrs": {
"type": "string"
},
"opacity": {
"type": "integer"
},
"features": {
"items": {
"additionalProperties": false,
"type": "object",
"patternProperties": {
"^__[a-z]+__$": {}
},
"properties": {
"items": {
"type": "string"
},
"__type__": {
"enum": [
"feature"
]
},
"points": {
"oneOf": [
{
"items": {
"items": {
"items": {
"minItems": 2,
"type": "number",
"maxItems": 2
},
"type": "array"
},
"type": "array"
},
"type": "array"
},
{
"items": {
"items": {
"minItems": 2,
"type": "number",
"maxItems": 2
},
"type": "array"
},
"type": "array"
}
]
},
"text": {
"type": "string"
},
"include": {
"items": {
"type": "string"
},
"type": "array"
},
"wkt": {
"type": "string"
}
}
},
"type": "array"
},
"labelitem": {
"type": "string"
},
"encoding": {
"type": "string"
},
"maxfeatures": {
"type": "integer"
},
"maxscaledenom": {
"type": "number"
},
"maxscale": {
"type": "number",
"metadata": {
"deprecated": true,
"maxVersion": 5.0
}
},
"connectiontype": {
"enum": [
"contour",
"kerneldensity",
"local",
"ogr",
"oraclespatial",
"plugin",
"postgis",
"sde",
"union",
"uvraster",
"wfs",
"wms",
"mygis"
]
},
"labelminscale": {
"type": "number",
"metadata": {
"deprecated": true,
"minVersion": 0,
"maxVersion": 5.0
}
},
"cluster": {
"type": "object"
},
"minscaledenom": {
"type": "number"
},
"projection": {
"oneOf": [
{
"minItems": 1,
"items": {
"type": "string"
},
"type": "array"
},
{
"enum": [
"auto"
]
}
]
},
"postlabelcache": {
"type": "boolean"
},
"labelmaxscale": {
"type": "number",
"metadata": {
"deprecated": true,
"minVersion": 0,
"maxVersion": 5.0
}
},
"group": {
"type": "string"
},
"dump": {
"oneOf": [
{
"type": "boolean"
},
{
"enum": [
"on",
"off"
],
"type": "string"
}
]
},
"footer": {
"type": "string"
},
"filteritem": {
"type": "string"
},
"mingeowidth": {
"type": "number"
},
"labelrequires": {
"type": "string"
},
"__type__": {
"enum": [
"layer"
]
},
"transform": {
"oneOf": [
{
"type": "boolean"
},
{
"enum": [
"ul",
"uc",
"ur",
"cl",
"cc",
"cr",
"ll",
"lc",
"lr"
]
}
]
},
"labelcache": {
"enum": [
"on",
"off"
],
"type": "string"
},
"labelangleitem": {
"type": "string"
},
"metadata": {
"additionalProperties": true,
"type": "object",
"properties": {}
},
"classgroup": {
"type": "string"
},
"template": {
"type": "string"
},
"units": {
"enum": [
"dd",
"feet",
"inches",
"kilometers",
"meters",
"miles",
"nauticalmiles",
"percentages",
"pixels"
]
},
"geomtransform": {
"anyOf": [
{
"type": "string"
},
{
"pattern": "^\\((.*?)\\)$",
"type": "string"
}
]
},
"include": {
"items": {
"type": "string"
},
"type": "array"
},
"type": {
"enum": [
"chart",
"circle",
"line",
"point",
"polygon",
"raster",
"query",
"annotation"
]
},
"labelmaxscaledenom": {
"type": "number"
},
"status": {
"enum": [
"on",
"off",
"default"
],
"type": "string"
},
"utfdata": {
"type": "string"
},
"processing": {
"items": {
"type": "string"
},
"type": "array"
},
"classitem": {
"type": "string"
},
"header": {
"type": "string"
},
"symbolscaledenom": {
"type": "number"
},
"scaletokens": {
"items": {
"additionalProperties": false,
"type": "object",
"patternProperties": {
"^__[a-z]+__$": {}
},
"properties": {
"__type__": {
"enum": [
"scaletoken"
]
},
"include": {
"items": {
"type": "string"
},
"type": "array"
},
"values": {
"additionalProperties": true,
"type": "object",
"properties": {}
},
"name": {
"type": "string"
}
}
},
"type": "array"
},
"plugin": {
"type": "string"
},
"grid": {
"additionalProperties": false,
"type": "object",
"patternProperties": {
"^__[a-z]+__$": {}
},
"properties": {
"minarcs": {
"default": 16,
"type": "number"
},
"include": {
"items": {
"type": "string"
},
"type": "array"
},
"labelformat": {
"additionalProperties": true,
"enum": [
"dd",
"ddmm",
"ddmmss"
],
"type": "string"
},
"__type__": {
"enum": [
"grid"
]
},
"maxinterval": {
"type": "number"
},
"minsubdivide": {
"type": "number"
},
"mininterval": {
"type": "number"
},
"maxsubdivide": {
"default": 256,
"type": "number"
},
"maxarcs": {
"type": "number"
}
}
},
"extent": {
"minItems": 4,
"items": {
"type": "number"
},
"type": "array",
"maxItems": 4
},
"tileitem": {
"type": "string"
},
"minscale": {
"type": "number",
"metadata": {
"deprecated": true,
"minVersion": 0,
"maxVersion": 5.0
}
},
"labelminscaledenom": {
"type": "number"
},
"data": {
"type": "string"
},
"utfitem": {
"type": "string"
},
"maxgeowidth": {
"type": "number"
},
"join": {
"type": "object"
},
"name": {
"type": "string"
},
"__comments__": {
"type": "object"
},
"sizeunits": {
"enum": [
"feet",
"inches",
"kilometers",
"meters",
"miles",
"nauticalmiles",
"pixels"
]
},
"tolerance": {
"type": "number"
},
"styleitem": {
"type": "string"
},
"mask": {
"type": "string"
},
"offsite": {
"oneOf": [
{
"minItems": 3,
"items": {
"minimum": -1,
"type": "number",
"maximum": 255
},
"type": "array",
"maxItems": 3
},
{
"pattern": "^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})$",
"type": "string",
"example": "#aa33cc"
}
]
},
"filter": {
"anyOf": [
{
"type": "string"
},
{
"pattern": "^\\((.*?)\\)$",
"type": "string",
"description": "expression"
},
{
"pattern": "^/(.*?)/$",
"type": "string",
"description": "regex"
}
]
},
"connection": {
"type": "string"
},
"classes": {
"items": {
"additionalProperties": false,
"type": "object",
"patternProperties": {
"^__[a-z]+__$": {}
},
"properties": {
"size": {
"type": "integer"
},
"status": {
"enum": [
"on",
"off"
],
"type": "string"
},
"color": {
"oneOf": [
{
"minItems": 3,
"items": {
"minimum": -1,
"type": "number",
"maximum": 255
},
"type": "array",
"maxItems": 3
},
{
"pattern": "^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})$",
"type": "string",
"example": "#aa33cc"
}
]
},
"text": {
"anyOf": [
{
"type": "string"
},
{
"pattern": "^\\((.*?)\\)$",
"type": "string",
"description": "expression"
},
{
"pattern": "^/(.*?)/$",
"type": "string",
"description": "regex"
}
]
},
"labels": {
"items": {
"additionalProperties": false,
"type": "object",
"patternProperties": {
"^__[a-z]+__$": {}
},
"properties": {
"size": {
"oneOf": [
{
"type": "integer"
},
{
"additionalProperties": false,
"enum": [
"tiny",
"small",
"medium",
"large",
"giant"
],
"type": "string"
},
{
"pattern": "^\\[(.*?)\\]$",
"type": "string",
"description": "attribute"
}
]
},
"force": {
"type": "boolean"
},
"encoding": {
"type": "string"
},
"color": {
"oneOf": [
{
"oneOf": [
{
"minItems": 3,
"items": {
"minimum": -1,
"type": "number",
"maximum": 255
},
"type": "array",
"maxItems": 3
},
{
"pattern": "^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})$",
"type": "string",
"example": "#aa33cc"
}
]
},
{
"pattern": "^\\[(.*?)\\]$",
"type": "string",
"description": "attribute"
}
]
},
"text": {
"anyOf": [
{
"type": "string"
},
{
"pattern": "^\\((.*?)\\)$",
"type": "string",
"description": "expression"
},
{
"pattern": "^/(.*?)/$",
"type": "string",
"description": "regex"
}
]
},
"minsize": {
"type": "integer"
},
"repeatdistance": {
"default": 0,
"type": "integer"
},
"wrap": {
"minLength": 1,
"type": "string",
"maxLength": 1
},
"font": {
"oneOf": [
{
"type": "string"
},
{
"pattern": "^\\[(.*?)\\]$",
"type": "string",
"description": "attribute"
}
]
},
"minscaledenom": {
"type": "number"
},
"outlinecolor": {
"oneOf": [
{
"oneOf": [
{
"minItems": 3,
"items": {
"minimum": -1,
"type": "number",
"maximum": 255
},
"type": "array",
"maxItems": 3
},
{
"pattern": "^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})$",
"type": "string",
"example": "#aa33cc"
}
]
},
{
"pattern": "^\\[(.*?)\\]$",
"type": "string",
"description": "attribute"
}
]
},
"angle": {
"oneOf": [
{
"additionalProperties": false,
"enum": [
"auto",
"auto2",
"follow"
],
"type": "string"
},
{
"type": "number"
},
{
"pattern": "^\\[(.*?)\\]$",
"type": "string",
"description": "attribute"
}
]
},
"__type__": {
"enum": [
"label"
]
},
"partials": {
"type": "boolean"
},
"priority": {
"oneOf": [
{
"type": "integer"
},
{
"pattern": "^\\[(.*?)\\]$",
"type": "string",
"description": "attribute"
}
]
},
"maxsize": {
"type": "integer"
},
"mindistance": {
"type": "integer"
},
"outlinewidth": {
"type": "integer"
},
"include": {
"items": {
"type": "string"
},
"type": "array"
},
"type": {
"additionalProperties": false,
"enum": [
"bitmap",
"truetype"
],
"type": "string"
},
"styles": {
"items": {
"additionalProperties": false,
"type": "object",
"patternProperties": {
"^__[a-z]+__$": {}
},
"properties": {
"polaroffset": {
"items": {
"minItems": 2,
"oneOf": [
{
"type": "number"
},
{
"pattern": "^\\[(.*?)\\]$",
"type": "string",
"description": "attribute"
}
],
"maxItems": 2
},
"type": "array"
},
"color": {
"oneOf": [
{
"oneOf": [
{
"minItems": 3,
"items": {
"minimum": -1,
"type": "number",
"maximum": 255
},
"type": "array",
"maxItems": 3
},
{
"pattern": "^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})$",
"type": "string",
"example": "#aa33cc"
}
]
},
{
"pattern": "^\\[(.*?)\\]$",
"type": "string",
"description": "attribute"
}
]
},
"minwidth": {
"type": "number"
},
"minscaledenom": {
"type": "number"
},
"size": {
"oneOf": [
{
"type": "number"
},
{
"pattern": "^\\[(.*?)\\]$",
"type": "string",
"description": "attribute"
}
]
},
"angle": {
"oneOf": [
{
"type": "number"
},
{
"pattern": "^\\[(.*?)\\]$",
"type": "string",
"description": "attribute"
},
{
"enum": [
"auto"
]
}
]
},
"maxwidth": {
"type": "number"
},
"linecap": {
"enum": [
"butt",
"round",
"square"
]
},
"__type__": {
"enum": [
"style"
]
},
"width": {
"oneOf": [
{
"type": "number"
},
{
"pattern": "^\\[(.*?)\\]$",
"type": "string",
"description": "attribute"
}
]
},
"maxsize": {
"type": "number"
},
"geomtransform": {
"oneOf": [
{
"enum": [
"bbox",
"centroid",
"end",
"labelpnt",
"labelpoly",
"start",
"vertices"
]
},
{
"pattern": "^\\((.*?)\\)$",
"type": "string",
"description": "expression"
}
]
},
"outlinewidth": {
"oneOf": [
{
"type": "number"
},
{
"pattern": "^\\[(.*?)\\]$",
"type": "string",
"description": "attribute"
}
]
},
"include": {
"items": {
"type": "string"
},
"type": "array"
},
"opacity": {
"oneOf": [
{
"type": "integer"
},
{
"pattern": "^\\[(.*?)\\]$",
"type": "string",
"description": "attribute"
}
]
},
"symbol": {
"oneOf": [
{
"type": "string"
},
{
"type": "number"
},
{
"additionalProperties": false,
"type": "object",
"patternProperties": {
"^__[a-z]+__$": {}
},
"properties": {
"include": {
"items": {
"type": "string"
},
"type": "array"
},
"anchorpoint": {
"minItems": 2,
"items": [
{
"minimum": 0,
"type": "number",
"maximum": 1
}
],
"type": "array",
"maxItems": 2
},
"name": {
"type": "string"
},
"__type__": {
"enum": [
"symbol"
]
},
"image": {
"type": "string"
},
"character": {
"minLength": 1,
"type": "string",
"maxLength": 1
},
"antialias": {
"type": "boolean"
},
"points": {
"items": {
"items": {
"minItems": 2,
"type": "number",
"maxItems": 2
},
"type": "array"
},
"type": "array"
},
"backgroundcolor": {
"oneOf": [
{
"minItems": 3,
"items": {
"minimum": -1,
"type": "number",
"maximum": 255
},
"type": "array",
"maxItems": 3
},
{
"pattern": "^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})$",
"type": "string",
"example": "#aa33cc"
}
]
},
"font": {
"type": "string"
},
"type": {
"enum": [
"ellipse",
"hatch",
"pixmap",
"svg",
"truetype",
"vector"
]
},
"transparent": {
"type": "integer"
},
"filled": {
"type": "boolean"
}
}
}
]
},
"linejoinmaxsize": {
"type": "integer"
},
"antialias": {
"type": "boolean"
},
"gap": {
"type": "number"
},
"backgroundcolor": {
"oneOf": [
{
"minItems": 3,
"items": {
"minimum": -1,
"type": "number",
"maximum": 255
},
"type": "array",
"maxItems": 3
},
{
"pattern": "^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})$",
"type": "string",
"example": "#aa33cc"
}
]
},
"offset": {
"minItems": 2,
"items": {
"type": "number"
},
"type": "array",
"maxItems": 2
},
"linejoin": {
"enum": [
"round",
"miter",
"bevel",
"none"
]
},
"rangeitem": {
"pattern": "^\\[(.*?)\\]$",
"type": "string",
"description": "attribute"
},
"colorrange": {
"oneOf": [
{
"minItems": 6,
"items": {
"type": "integer"
},
"type": "array",
"maxItems": 6
},
{
"minItems": 2,
"items": {
"type": "string"
},
"type": "array",
"maxItems": 2
}
]
},
"minsize": {
"type": "number"
},
"initialgap": {
"type": "number"
},
"datarange": {
"minItems": 2,
"items": {
"type": "number"
},
"type": "array",
"maxItems": 2
},
"maxscaledenom": {
"type": "number"
},
"angleitem": {
"type": "string"
},
"pattern": {
"items": {
"items": {
"minItems": 2,
"type": "number",
"maxItems": 2
},
"type": "array"
},
"type": "array"
},
"outlinecolor": {
"oneOf": [
{
"oneOf": [
{
"minItems": 3,
"items": {
"minimum": -1,
"type": "number",
"maximum": 255
},
"type": "array",
"maxItems": 3
},
{
"pattern": "^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})$",
"type": "string",
"example": "#aa33cc"
}
]
},
{
"pattern": "^\\[(.*?)\\]$",
"type": "string",
"description": "attribute"
}
]
}
}
},
"type": "array"
},
"buffer": {
"type": "integer"
},
"antialias": {
"type": "boolean"
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}
},
"fontset": {
"type": "string"
},
"status": {
"enum": [
"on",
"off"
],
"type": "string"
},
"scalebar": {
"type": "object"
},
"shapepath": {
"type": "string"
},
"extent": {
"minItems": 4,
"items": {
"type": "number"
},
"type": "array",
"maxItems": 4
},
"scaledenom": {
"type": "number"
},
"name": {
"type": "string"
},
"querymap": {
"additionalProperties": false,
"type": "object",
"patternProperties": {
"^__[a-z]+__$": {}
},
"properties": {
"status": {
"enum": [
"on",
"off"
],
"type": "string"
},
"style": {
"additionalProperties": false,
"enum": [
"normal",
"hilite",
"selected"
],
"type": "string"
},
"color": {
"oneOf": [
{
"minItems": 3,
"items": {
"minimum": -1,
"type": "number",
"maximum": 255
},
"type": "array",
"maxItems": 3
},
{
"pattern": "^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})$",
"type": "string",
"example": "#aa33cc"
}
]
},
"__type__": {
"enum": [
"querymap"
]
},
"include": {
"items": {
"type": "string"
},
"type": "array"
},
"size": {
"minItems": 2,
"items": {
"type": "integer"
},
"type": "array",
"maxItems": 2
}
}
},
"imagecolor": {
"oneOf": [
{
"minItems": 3,
"items": {
"minimum": -1,
"type": "number",
"maximum": 255
},
"type": "array",
"maxItems": 3
},
{
"pattern": "^#([a-fA-F0-9]{6}|[a-fA-F0-9]{3})$",
"type": "string",
"example": "#aa33cc"
}
]
},
"datapattern": {
"type": "string"
},
"legend": {
"type": "object"
},
"imagequality": {
"type": "integer"
},
"debug": {
"enum": [
"on",
"off",
0,
1,
2,
3,
4,
5
]
},
"resolution": {
"type": "integer"
},
"templatepattern": {
"type": "string"
}
}
}
5.1. 笔记¶
enum 用于检查属性关键字，并由漂亮的打印机不加引号地输出它们。这个 CLUSTER REGION 关键字是固定列表，但必须是字符串并以引号输出，因此使用以下构造：
"type": "string",
"pattern": "^rectangle$"
