Odd clipping behavior with GeoJSON

zamderax · August 27, 2024, 7:57pm

Hi all, I am very impressed with the library.

I am using 1.120.0

However, I’ve imported from Natural Earth all the boundaries of countries as GeoJSON and I’m getting some strange artifacts in 3 places. What would cause this?

The GeoJSON that I’m using is from here:

github.com

nvkelso/natural-earth-vector/blob/master/geojson/ne_50m_admin_0_countries.geojson

{"type":"FeatureCollection","name":"ne_50m_admin_0_countries","crs":{"type":"name","properties":{"name":"urn:ogc:def:crs:OGC:1.3:CRS84"}},"features":[{"type":"Feature","properties":{"featurecla":"Admin-0 country","scalerank":1,"LABELRANK":3,"SOVEREIGNT":"Zimbabwe","SOV_A3":"ZWE","ADM0_DIF":0,"LEVEL":2,"TYPE":"Sovereign country","TLC":"1","ADMIN":"Zimbabwe","ADM0_A3":"ZWE","GEOU_DIF":0,"GEOUNIT":"Zimbabwe","GU_A3":"ZWE","SU_DIF":0,"SUBUNIT":"Zimbabwe","SU_A3":"ZWE","BRK_DIFF":0,"NAME":"Zimbabwe","NAME_LONG":"Zimbabwe","BRK_A3":"ZWE","BRK_NAME":"Zimbabwe","BRK_GROUP":null,"ABBREV":"Zimb.","POSTAL":"ZW","FORMAL_EN":"Republic of Zimbabwe","FORMAL_FR":null,"NAME_CIAWF":"Zimbabwe","NOTE_ADM0":null,"NOTE_BRK":null,"NAME_SORT":"Zimbabwe","NAME_ALT":null,"MAPCOLOR7":1,"MAPCOLOR8":5,"MAPCOLOR9":3,"MAPCOLOR13":9,"POP_EST":14645468,"POP_RANK":14,"POP_YEAR":2019,"GDP_MD":21440,"GDP_YEAR":2019,"ECONOMY":"5. Emerging region: G20","INCOME_GRP":"5. Low income","FIPS_10":"ZI","ISO_A2":"ZW","ISO_A2_EH":"ZW","ISO_A3":"ZWE","ISO_A3_EH":"ZWE","ISO_N3":"716","ISO_N3_EH":"716","UN_A3":"716","WB_A2":"ZW","WB_A3":"ZWE","WOE_ID":23425004,"WOE_ID_EH":23425004,"WOE_NOTE":"Exact WOE match as country","ADM0_ISO":"ZWE","ADM0_DIFF":null,"ADM0_TLC":"ZWE","ADM0_A3_US":"ZWE","ADM0_A3_FR":"ZWE","ADM0_A3_RU":"ZWE","ADM0_A3_ES":"ZWE","ADM0_A3_CN":"ZWE","ADM0_A3_TW":"ZWE","ADM0_A3_IN":"ZWE","ADM0_A3_NP":"ZWE","ADM0_A3_PK":"ZWE","ADM0_A3_DE":"ZWE","ADM0_A3_GB":"ZWE","ADM0_A3_BR":"ZWE","ADM0_A3_IL":"ZWE","ADM0_A3_PS":"ZWE","ADM0_A3_SA":"ZWE","ADM0_A3_EG":"ZWE","ADM0_A3_MA":"ZWE","ADM0_A3_PT":"ZWE","ADM0_A3_AR":"ZWE","ADM0_A3_JP":"ZWE","ADM0_A3_KO":"ZWE","ADM0_A3_VN":"ZWE","ADM0_A3_TR":"ZWE","ADM0_A3_ID":"ZWE","ADM0_A3_PL":"ZWE","ADM0_A3_GR":"ZWE","ADM0_A3_IT":"ZWE","ADM0_A3_NL":"ZWE","ADM0_A3_SE":"ZWE","ADM0_A3_BD":"ZWE","ADM0_A3_UA":"ZWE","ADM0_A3_UN":-99,"ADM0_A3_WB":-99,"CONTINENT":"Africa","REGION_UN":"Africa","SUBREGION":"Eastern Africa","REGION_WB":"Sub-Saharan Africa","NAME_LEN":8,"LONG_LEN":8,"ABBREV_LEN":5,"TINY":-99,"HOMEPART":1,"MIN_ZOOM":0,"MIN_LABEL":2.5,"MAX_LABEL":8,"LABEL_X":29.925444,"LABEL_Y":-18.91164,"NE_ID":1159321441,"WIKIDATAID":"Q954","NAME_AR":"زيمبابوي","NAME_BN":"জিম্বাবুয়ে","NAME_DE":"Simbabwe","NAME_EN":"Zimbabwe","NAME_ES":"Zimbabue","NAME_FA":"زیمبابوه","NAME_FR":"Zimbabwe","NAME_EL":"Ζιμπάμπουε","NAME_HE":"זימבבואה","NAME_HI":"ज़िम्बाब्वे","NAME_HU":"Zimbabwe","NAME_ID":"Zimbabwe","NAME_IT":"Zimbabwe","NAME_JA":"ジンバブエ","NAME_KO":"짐바브웨","NAME_NL":"Zimbabwe","NAME_PL":"Zimbabwe","NAME_PT":"Zimbábue","NAME_RU":"Зимбабве","NAME_SV":"Zimbabwe","NAME_TR":"Zimbabve","NAME_UK":"Зімбабве","NAME_UR":"زمبابوے","NAME_VI":"Zimbabwe","NAME_ZH":"津巴布韦","NAME_ZHT":"辛巴威","FCLASS_ISO":"Admin-0 country","TLC_DIFF":null,"FCLASS_TLC":"Admin-0 country","FCLASS_US":null,"FCLASS_FR":null,"FCLASS_RU":null,"FCLASS_ES":null,"FCLASS_CN":null,"FCLASS_TW":null,"FCLASS_IN":null,"FCLASS_NP":null,"FCLASS_PK":null,"FCLASS_DE":null,"FCLASS_GB":null,"FCLASS_BR":null,"FCLASS_IL":null,"FCLASS_PS":null,"FCLASS_SA":null,"FCLASS_EG":null,"FCLASS_MA":null,"FCLASS_PT":null,"FCLASS_AR":null,"FCLASS_JP":null,"FCLASS_KO":null,"FCLASS_VN":null,"FCLASS_TR":null,"FCLASS_ID":null,"FCLASS_PL":null,"FCLASS_GR":null,"FCLASS_IT":null,"FCLASS_NL":null,"FCLASS_SE":null,"FCLASS_BD":null,"FCLASS_UA":null},"bbox":[25.224023,-22.402051,33.006738,-15.643066],"geometry":{"type":"Polygon","coordinates":[[[31.287891,-22.402051],[31.197266,-22.344922],[31.073438,-22.307813],[30.916113,-22.290723],[30.711621,-22.297852],[30.460156,-22.329004],[30.19043,-22.291113],[29.902344,-22.18418],[29.663086,-22.146289],[29.377441,-22.192773],[29.364844,-22.193945],[29.315234,-22.157715],[29.237207,-22.079492],[29.106836,-22.065723],[29.071484,-22.047461],[29.042383,-22.018359],[29.02334,-21.98125],[29.01582,-21.939941],[29.037305,-21.811328],[29.025586,-21.796875],[28.990723,-21.781445],[28.919336,-21.766016],[28.747754,-21.707617],[28.532031,-21.65127],[28.181641,-21.589355],[28.045605,-21.573047],[28.014063,-21.554199],[27.974609,-21.506738],[27.907422,-21.359082],[27.844141,-21.261523],[27.693457,-21.111035],[27.669434,-21.064258],[27.676953,-20.944824],[27.688086,-20.84834],[27.704297,-20.766406],[27.696973,-20.689746],[27.694824,-20.594531],[27.699609,-20.530664],[27.679297,-20.503027],[27.624609,-20.483594],[27.468945,-20.474805],[27.280762,-20.478711],[27.274609,-20.381836],[27.256738,-20.232031],[27.221484,-20.145801],[27.178223,-20.100977],[27.091797,-20.054199],[26.916699,-19.990137],[26.678223,-19.892773],[26.474609,-19.748633],[26.241016,-19.569336],[26.168066,-19.538281],[26.081934,-19.369922],[25.950684,-19.081738],[25.95918,-18.985645],[25.939355,-18.938672],[25.811914,-18.79707],[25.783691,-18.723535],[25.76123,-18.649219],[25.558301,-18.441797],[25.489258,-18.35127],[25.436719,-18.234961],[25.384375,-18.141992],[25.340234,-18.104492],[25.282422,-18.041211],[25.242285,-17.969043],[25.224023,-17.915234],[25.239063,-17.843066],[25.258789,-17.793555],[25.451758,-17.845117],[25.557

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Odd clipping behavior with GeoJSON

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