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作者：Carlo

背景：最近很多小伙伴想要了解如何将临时图层资源打印输出为图片？其实，官网已发布的10.2.1版本以及11.1.0版本的iServer就已经支持该功能，我们可以通过下文的介绍来学习使用。

• 步骤一、生成一个临时图层资源

（1）进入需要生成临时图层的地图服务下，找到tempLayersSet资源；
（2）在tempLayersSet资源内，选择执行post请求；
（3）输入请求参数后，会生成一个矢量图层和一个标签专题图（请求体参考帮助文档关于”POST：创建临时图层集“）
（4）请求成功后可以在tempLayers资源下看到新生成的临时图层
（5）拿到临时图层的url地址，如图界面所在的地址（http://localhost:8090/iserver/services/map-world/rest/maps/World/tempLayersSet/LAPTOP-DA060VUO_8900_13bb3064645a4b29a2745a139a0fdedc）

• 步骤二、使用Web打印功能打印临时图层

（1）创建打印任务，填写打印参数，参数写法参考帮助文档关于”使用 SuperMap REST 地图服务构建一个符合 WebMap 规范的底图“

//打印临时图层的参数

"baseLayer": {

                "layerType": "TILE",

                    "name": "世界地图",

                    "url": "http://localhost:8090/iserver/services/map-world/rest/maps/世界地图/tempLayersSet/LAPTOP-DA060VUO_8900_11778ed5247c44b5aa505ed25b028bfb"

            }
            
//完整请求体

{

    "layoutOptions": {

        "templateName": "A4_landscape",

        "title": "主标题",

        "subTitle": "副标题",

        "author": "作者",

        "copyright": "版权信息",

        "northArrowOptions": {

            "picAsUrl": "file://NorthArrow.svg"

        },

        "scaleBarOptions": {

            "scaleText": "比例尺"

        },

        "legendOptions": {

            "title": "图例",

            "customItems": [

                {

                    "name": "重要设置",

                    "picAsBase64": "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"

                },

                {

                    "name": "河流",

                    "picAsUrl": 

                        "https://iserver.supermap.io/iserver/services/map-china400/rest/maps/China/layers/River@China@@China/legend"

                    

                },

                {

                    "name": "主干道",

                    "picAsUrl": 

                        "https://iserver.supermap.io/iserver/services/map-china400/rest/maps/China/layers/Main_Road_L@China@@China/legend"

                    

                }

            ]

        },

        "littleMapOptions": {

            "center": {

                "x": 12659780.84769,

                "y": 1630935.5331

            },

            "scale": 2.63157894736842E-08,

            "layers": [

                {

                    "layerType": "TILE",

                    "name": "China",

                    "url": "https://iserver.supermap.io/iserver/services/map-china400/rest/maps/China"

                }

            ]

        }

    },

    "exportOptions": {

        "format": "pdf",

        "dpi": 96

    },

    "content": {

        "type": "WEBMAP",

        "value": {
            "maxScale": "1:144447.927",

            "level": 2,

            "center": {

                "x": -33.41,

                "y": -2.68

            },
            "baseLayer": {

                "layerType": "TILE",

                    "name": "世界地图",

                    "url": "http://localhost:8090/iserver/services/map-world/rest/maps/World/tempLayersSet/LAPTOP-DA060VUO_8900_13bb3064645a4b29a2745a139a0fdedc"

            },

            "description": "",

            "projection": "EPSG:4326",

            "minScale": "1:591658710.909",

            "title": "china_point",

            "version": "2.0.0"

        }

    }

}

（2）打印成功后，可以下载打印报告