arcgis for js 不支持直接将geojson字符串转换成layer?

Question

arcgis for js 我找到了如下方式

var geoJsonLayer = new GeoJsonLayer({
    url: url, // ./data/dc-schools.json
});

可是这个不是我想要的,我记得openlayer有直接将geojson字符串转换成图层的方法，不知道arcgis是否能直接将geojson字符串转换成图层，有懂的老哥么？

Answer 1

找到了，直接用data替代就行了

var geoJsonLayer = new GeoJsonLayer({
    //url: url, // ./data/dc-schools.json
    data: JSON.parse('{"type":"FeatureCollection","features":[n' +
        '{"type":"Feature","id":"CAN","properties":{"name":"Canada"},"geometry":{"type":"MultiPolygon","coordinates":[[[[-63.6645,46.55001],[-62.9393,46.41587],[-62.01208,46.44314],[-62.50391,46.03339],[-62.87433,45.96818],[-64.1428,46.39265],[-64.39261,46.72747],[-64.01486,47.03601],[-63.6645,46.55001]]],[[[-61.806305,49.10506],[-62.29318,49.08717],[-63.58926,49.40069],[-64.51912,49.87304],[-64.17322,49.95718],[-62.85829,49.70641],[-61.835585,49.28855],[-61.806305,49.10506]]],[[[-123.510002,48.510011],[-124.012891,48.370846],[-125.655013,48.825005],[-125.954994,49.179996],[-126.850004,49.53],[-127.029993,49.814996],[-128.059336,49.994959],[-128.444584,50.539138],[-128.358414,50.770648],[-127.308581,50.552574],[-126.695001,50.400903],[-125.755007,50.295018],[-125.415002,49.950001],[-124.920768,49.475275],[-123.922509,49.062484],[-123.510002,48.510011]]],[[[-56.134036,50.68701],[-56.795882,49.812309],[-56.143105,50.150117],[-55.471492,49.935815],[-55.822401,49.587129],[-54.935143,49.313011],[-54.473775,49.556691],[-53.476549,49.249139],[-53.786014,48.516781],[-53.086134,48.687804],[-52.958648,48.157164],[-52.648099,47.535548],[-53.069158,46.655499],[-53.521456,46.618292],[-54.178936,46.807066],[-53.961869,47.625207],[-54.240482,47.752279],[-55.400773,46.884994],[-55.997481,46.91972],[-55.291219,47.389562],[-56.250799,47.632545],[-57.325229,47.572807],[-59.266015,47.603348],[-59.419494,47.899454],[-58.796586,48.251525],[-59.231625,48.523188],[-58.391805,49.125581],[-57.35869,50.718274],[-56.73865,51.287438],[-55.870977,51.632094],[-55.406974,51.588273],[-55.600218,51.317075],[-56.134036,50.68701]]],[[[-132.710008,54.040009],[-132.710009,54.040009],[-132.710008,54.040009],[-132.710008,54.040009],[-131.74999,54.120004],[-132.04948,52.984621],[-131.179043,52.180433],[-131.57783,52.182371],[-132.180428,52.639707],[-132.549992,53.100015],[-133.054611,53.411469],[-133.239664,53.85108],[-133.180004,54.169975],[-132.710008,54.040009]]],[[[-79.26582,62.158675],[-79.65752,61.63308],[-80.09956,61.7181],[-80.36215,62.01649],[-80.315395,62.085565],[-79.92939,62.3856],[-79.52002,62.36371],[-79.26582,62.158675]]],[[[-81.89825,62.7108],[-83.06857,62.15922],[-83.77462,62.18231],[-83.99367,62.4528],[-83.25048,62.91409],[-81.87699,62.90458],[-81.89825,62.7108]]],[[[-85.161308,65.657285],[-84.975764,65.217518],[-84.464012,65.371772],[-83.882626,65.109618],[-82.787577,64.766693],[-81.642014,64.455136],[-81.55344,63.979609],[-80.817361,64.057486],[-80.103451,63.725981],[-80.99102,63.411246],[-82.547178,63.651722],[-83.108798,64.101876],[-84.100417,63.569712],[-85.523405,63.052379],[-85.866769,63.637253],[-87.221983,63.541238],[-86.35276,64.035833],[-86.224886,64.822917],[-85.883848,65.738778],[-85.161308,65.657285]]],[[[-75.86588,67.14886],[-76.98687,67.09873],[-77.2364,67.58809],[-76.81166,68.14856],[-75.89521,68.28721],[-75.1145,68.01036],[-75.10333,67.58202],[-75.21597,67.44425],[-75.86588,67.14886]]],[[[-95.647681,69.10769],[-96.269521,68.75704],[-97.617401,69.06003],[-98.431801,68.9507],[-99.797401,69.40003],[-98.917401,69.71003],[-98.218261,70.14354],[-97.157401,69.86003],[-96.557401,69.68003],[-96.257401,69.49003],[-95.647681,69.10769]]],[[[-90.5471,69.49766],[-90.55151,68.47499],[-89.21515,69.25873],[-88.01966,68.61508],[-88.31749,67.87338],[-87.35017,67.19872],[-86.30607,67.92146],[-85.57664,68.78456],[-85.52197,69.88211],[-84.10081,69.80539],[-82.62258,69.65826],[-81.28043,69.16202],[-81.2202,68.66567],[-81.96436,68.13253],[-81.25928,67.59716],[-81.38653,67.11078],[-83.34456,66.41154],[-84.73542,66.2573],[-85.76943,66.55833],[-86.0676,66.05625],[-87.03143,65.21297],[-87.32324,64.77563],[-88.48296,64.09897],[-89.91444,64.03273],[-90.70398,63.61017],[-90.77004,62.96021],[-91.93342,62.83508],[-93.15698,62.02469],[-94.24153,60.89865],[-94.62931,60.11021],[-94.6846,58.94882],[-93.21502,58.78212],[-92.76462,57.84571],[-92.29703,57.08709],[-90.89769,57.28468],[-89.03953,56.85172],[-88.03978,56.47162],[-87.32421,55.99914],[-86.07121,55.72383],[-85.01181,55.3026],[-83.36055,55.24489],[-82.27285,55.14832],[-82.4362,54.28227],[-82.12502,53.27703],[-81.40075,52.15788],[-79.91289,51.20842],[-79.14301,51.53393],[-78.60191,52.56208],[-79.12421,54.14145],[-79.82958,54.66772],[-78.22874,55.13645],[-77.0956,55.83741],[-76.54137,56.53423],[-76.62319,57.20263],[-77.30226,58.05209],[-78.51688,58.80458],[-77.33676,59.85261],[-77.77272,60.75788],[-78.10687,62.31964],[-77.41067,62.55053],[-75.69621,62.2784],[-74.6682,62.18111],[-73.83988,62.4438],[-72.90853,62.10507],[-71.67708,61.52535],[-71.37369,61.13717],[-69.59042,61.06141],[-69.62033,60.22125],[-69.2879,58.95736],[-68.37455,58.80106],[-67.64976,58.21206],[-66.20178,58.76731],[-65.24517,59.87071],[-64.58352,60.33558],[-63.80475,59.4426],[-62.50236,58.16708],[-61.39655,56.96745],[-61.79866,56.33945],[-60.46853,55.77548],[-59.56962,55.20407],[-57.97508,54.94549],[-57.3332,54.6265],[-56.93689,53.78032],[-56.15811,53.64749],[-55.75632,53.27036],[-55.68338,52.14664],[-56.40916,51.7707],[-57.12691,51.41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