Peta koroplet adalah jenis peta tematik yang menampilkan wilayah administratif yang diberi warna atau diarsir sesuai dengan nilai data. Anda dapat menggunakan
FeatureLayerStyle
untuk menata gaya peta berdasarkan data yang masing-masing
wilayah administratif dikaitkan dengan
rentang nilai numerik.
Dalam contoh ini, data terdiri dari array pasangan nilai kunci, yang mencocokkan nama tampilan setiap negara bagian dengan nilai populasi numerik.
Swift
//.. let featureLayer = mapView.featureLayer(of: FeatureType.administrativeAreaLevel1) let populationOfStates = [ "ChIJdf5LHzR_hogR6czIUzU0VV4": 5_039_877, "ChIJG8CuwJzfAFQRNduKqSde27w": 732673, "ChIJaxhMy-sIK4cRcc3Bf7EnOUI": 7_276_316, "ChIJYSc_dD-e0ocR0NLf_z5pBaQ": 3_025_891, "ChIJPV4oX_65j4ARVW8IJ6IJUYs": 39_237_836, // California "ChIJt1YYm3QUQIcR_6eQSTGDVMc": 5_812_069, "ChIJpVER8hFT5okR5XBhBVttmq4": 3_605_597, "ChIJO9YMTXYFx4kReOgEjBItHZQ": 1_003_384, "ChIJvypWkWV2wYgR0E7HW9MTLvc": 21_781_128, "ChIJV4FfHcU28YgR5xBP7BC8hGY": 10_799_566, "ChIJBeB5Twbb_3sRKIbMdNKCd0s": 1_441_553, "ChIJ6Znkhaj_WFMRWIf3FQUwa9A": 1_900_923, "ChIJGSZubzgtC4gRVlkRZFCCFX8": 12_671_469, "ChIJHRv42bxQa4gRcuwyy84vEH4": 6_805_985, "ChIJGWD48W9e7ocR2VnHV0pj78Y": 3_193_079, "ChIJawF8cXEXo4cRXwk-S6m0wmg": 2_934_582, "ChIJyVMZi0xzQogR_N_MxU5vH3c": 4_509_394, "ChIJZYIRslSkIIYRA0flgTL3Vck": 4_624_047, "ChIJ1YpTHd4dsEwR0KggZ2_MedY": 1_372_247, "ChIJ35Dx6etNtokRsfZVdmU3r_I": 6_165_129, "ChIJ_b9z6W1l44kRHA2DVTbQxkU": 6_984_723, "ChIJEQTKxz2qTE0Rs8liellI3Zc": 10_050_811, "ChIJmwt4YJpbWE0RD6L-EJvJogI": 5_707_390, "ChIJGdRK5OQyKIYR2qbc6X8XDWI": 2_949_965, "ChIJfeMiSNXmwIcRcr1mBFnEW7U": 6_168_187, "ChIJ04p7LZwrQVMRGGwqz1jWcfU": 1_104_271, "ChIJ7fwMtciNk4cRxArzDwyQJ6E": 1_963_692, "ChIJcbTe-KEKmYARs5X8qooDR88": 3_143_991, "ChIJ66bAnUtEs0wR64CmJa8CyNc": 1_388_992, "ChIJn0AAnpX7wIkRjW0_-Ad70iw": 9_267_130, "ChIJqVKY50NQGIcRup41Yxpuv0Y": 2_115_877, "ChIJqaUj8fBLzEwRZ5UY3sHGz90": 19_835_913, "ChIJgRo4_MQfVIgRGa4i6fUwP60": 10_551_162, "ChIJY-nYVxKD11IRyc9egzmahA0": 774948, "ChIJwY5NtXrpNogRFtmfnDlkzeU": 11_780_017, "ChIJnU-ssRE5rIcRSOoKQDPPHF0": 3_986_639, "ChIJVWqfm3xuk1QRdrgLettlTH0": 4_246_155, "ChIJieUyHiaALYgRPbQiUEchRsI": 12_964_056, "ChIJD9cOYhQ15IkR5wbB57wYTh4": 1_095_610, "ChIJ49ExeWml-IgRnhcF9TKh_7k": 5_190_705, "ChIJpTjphS1DfYcRt6SGMSnW8Ac": 895376, "ChIJA8-XniNLYYgRVpGBpcEgPgM": 6_975_218, "ChIJSTKCCzZwQIYRPN4IGI8c6xY": 29_527_941, "ChIJzfkTj8drTIcRP0bXbKVK370": 3_337_975, "ChIJ_87aSGzctEwRtGtUNnSJTSY": 645570, "ChIJzbK8vXDWTIgRlaZGt0lBTsA": 8_642_274, "ChIJ-bDD5__lhVQRuvNfbGh4QpQ": 7_738_692, "ChIJRQnL1KVUSogRQzrN3mjHALs": 1_782_959, "ChIJr-OEkw_0qFIR1kmG-LjV1fI": 5_895_908, "ChIJaS7hSDTiXocRLzh90nkisCY": 578803, // Wyoming ] featureLayer.style = { feature in FeatureStyle( fill: populationOfStates[feature.placeID].map { UIColor( hue: log(CGFloat($0) / 5e5) / 7.5, saturation: 1, brightness: 0.75, alpha: 0.5) } ?? nil, stroke: nil, strokeWidth: 0 ) } self.view = mapView
Objective-C
//.. GMSFeatureLayer<GMSPlaceFeature *> *featureLayer = [mapView featureLayerOfFeatureType:GMSFeatureTypeAdministrativeAreaLevel1]; NSDictionary<NSString *, NSNumber *> *populationOfStates = @{ @"ChIJdf5LHzR_hogR6czIUzU0VV4" : @(5039877), @"ChIJG8CuwJzfAFQRNduKqSde27w" : @(732673), @"ChIJaxhMy-sIK4cRcc3Bf7EnOUI" : @(7276316), @"ChIJYSc_dD-e0ocR0NLf_z5pBaQ" : @(3025891), @"ChIJPV4oX_65j4ARVW8IJ6IJUYs" : @(39237836), // California @"ChIJt1YYm3QUQIcR_6eQSTGDVMc" : @(5812069), @"ChIJpVER8hFT5okR5XBhBVttmq4" : @(3605597), @"ChIJO9YMTXYFx4kReOgEjBItHZQ" : @(1003384), @"ChIJvypWkWV2wYgR0E7HW9MTLvc" : @(21781128), @"ChIJV4FfHcU28YgR5xBP7BC8hGY" : @(10799566), @"ChIJBeB5Twbb_3sRKIbMdNKCd0s" : @(1441553), @"ChIJ6Znkhaj_WFMRWIf3FQUwa9A" : @(1900923), @"ChIJGSZubzgtC4gRVlkRZFCCFX8" : @(12671469), @"ChIJHRv42bxQa4gRcuwyy84vEH4" : @(6805985), @"ChIJGWD48W9e7ocR2VnHV0pj78Y" : @(3193079), @"ChIJawF8cXEXo4cRXwk-S6m0wmg" : @(2934582), @"ChIJyVMZi0xzQogR_N_MxU5vH3c" : @(4509394), @"ChIJZYIRslSkIIYRA0flgTL3Vck" : @(4624047), @"ChIJ1YpTHd4dsEwR0KggZ2_MedY" : @(1372247), @"ChIJ35Dx6etNtokRsfZVdmU3r_I" : @(6165129), @"ChIJ_b9z6W1l44kRHA2DVTbQxkU" : @(6984723), @"ChIJEQTKxz2qTE0Rs8liellI3Zc" : @(10050811), @"ChIJmwt4YJpbWE0RD6L-EJvJogI" : @(5707390), @"ChIJGdRK5OQyKIYR2qbc6X8XDWI" : @(2949965), @"ChIJfeMiSNXmwIcRcr1mBFnEW7U" : @(6168187), @"ChIJ04p7LZwrQVMRGGwqz1jWcfU" : @(1104271), @"ChIJ7fwMtciNk4cRxArzDwyQJ6E" : @(1963692), @"ChIJcbTe-KEKmYARs5X8qooDR88" : @(3143991), @"ChIJ66bAnUtEs0wR64CmJa8CyNc" : @(1388992), @"ChIJn0AAnpX7wIkRjW0_-Ad70iw" : @(9267130), @"ChIJqVKY50NQGIcRup41Yxpuv0Y" : @(2115877), @"ChIJqaUj8fBLzEwRZ5UY3sHGz90" : @(19835913), @"ChIJgRo4_MQfVIgRGa4i6fUwP60" : @(10551162), @"ChIJY-nYVxKD11IRyc9egzmahA0" : @(774948), @"ChIJwY5NtXrpNogRFtmfnDlkzeU" : @(11780017), @"ChIJnU-ssRE5rIcRSOoKQDPPHF0" : @(3986639), @"ChIJVWqfm3xuk1QRdrgLettlTH0" : @(4246155), @"ChIJieUyHiaALYgRPbQiUEchRsI" : @(12964056), @"ChIJD9cOYhQ15IkR5wbB57wYTh4" : @(1095610), @"ChIJ49ExeWml-IgRnhcF9TKh_7k" : @(5190705), @"ChIJpTjphS1DfYcRt6SGMSnW8Ac" : @(895376), @"ChIJA8-XniNLYYgRVpGBpcEgPgM" : @(6975218), @"ChIJSTKCCzZwQIYRPN4IGI8c6xY" : @(29527941), @"ChIJzfkTj8drTIcRP0bXbKVK370" : @(3337975), @"ChIJ_87aSGzctEwRtGtUNnSJTSY" : @(645570), @"ChIJzbK8vXDWTIgRlaZGt0lBTsA" : @(8642274), @"ChIJ-bDD5__lhVQRuvNfbGh4QpQ" : @(7738692), @"ChIJRQnL1KVUSogRQzrN3mjHALs" : @(1782959), @"ChIJr-OEkw_0qFIR1kmG-LjV1fI" : @(5895908), @"ChIJaS7hSDTiXocRLzh90nkisCY" : @(578803), // Wyoming }; featureLayer.style = ^(GMSPlaceFeature *feature) { NSNumber *population = populationOfStates[feature.placeID]; UIColor *fillColor = population ? [UIColor colorWithHue:(log(population.doubleValue / 5e5) / 7.5) saturation:1 brightness:0.5 alpha:0.5] : nil; return [GMSFeatureStyle styleWithFillColor:fillColor strokeColor:nil strokeWidth:0.0]; }; self.view = mapView;