There are various clip functionsThe Feature (orange frame, layer1) should be cut at the blue layer (layer2).
Which of these functions used QGIS?What I assume that it usesdo not understand is why the qgis:clip function. When I use thisclip function, then I get the mentioned problem of QGIS works. When I use the gdalogr:clipvectorsbypolygonfunction, then I get the following message on the console To find under: Vector -> Geoprocessing Tools -> Clip.
FAILURE: Invalid geometry. Must be a valid POLYGON or MULTIPOLYGON WKT
Facts aboutWhen I run the datafollowing code, I get an incorrect result:
The data is returned and parsed in GeoJSON format from the server. From the data a QgsFeature is created. Two geometries in GeoJSON format:processing.runandload('qgis:clip', layer1, layer2, None)
{
"type": "MultiPolygon",
"crs": {
"type": "name",
"properties": {
"name": "EPSG:25832"
}
},
"coordinates": [
[
[
[
542706.2872924805,
5912251.853271484
],
[
542660.6802978516,
5912406.111877441
],
[
542657.5098876953,
5912424.586303711
],
[
542660.5863037109,
5912428.431884766
],
[
542781.7221069336,
5912468.423706055
],
[
542779.7993164062,
5912473.807922363
],
[
542754.1995239258,
5912557.572875977
],
[
542937.4187011719,
5912623.271118164
],
[
542807.6821289062,
5912939.2958984375
],
[
542807.6586914062,
5912939.402893066
],
[
542883.1987304688,
5912963.785522461
],
[
542980.3286743164,
5912995.460693359
],
[
543011.2399291992,
5913003.633728027
],
[
543034.3947143555,
5912941.547485352
],
[
543109.4404907227,
5912974.619873047
],
[
543119.5639038086,
5912910.467285156
],
[
543165.9216918945,
5912924.134521484
],
[
543149.0244750977,
5912985.780517578
],
[
543155.4230957031,
5912991.063293457
],
[
543142.3414916992,
5913045.31628418
],
[
543172.0249023438,
5913052.859313965
],
[
543181.5848999023,
5913024.989501953
],
[
543190.6074829102,
5913009.733276367
],
[
543202.8676757812,
5912971.409118652
],
[
543202.7836914062,
5912971.390686035
],
[
543223.1716918945,
5912907.660522461
],
[
543223.2565307617,
5912907.665893555
],
[
543225.5717163086,
5912898.450073242
],
[
543245.5651245117,
5912901.910522461
],
[
543269.9141235352,
5912822.526916504
],
[
543279.0458984375,
5912791.772277832
],
[
543281.146484375,
5912781.05847168
],
[
543283.3505249023,
5912752.399719238
],
[
543283.6586914062,
5912715.012878418
],
[
543290.9592895508,
5912715.781494141
],
[
543314.8088989258,
5912387.205688477
],
[
543236.6007080078,
5912370.614318848
],
[
543102.8283081055,
5912340.212280273
],
[
543096.9727172852,
5912605.4122924805
],
[
543119.3286743164,
5912604.2556762695
],
[
543140.4298706055,
5912628.041870117
],
[
543140.0465087891,
5912659.145324707
],
[
543135.8472900391,
5912672.8876953125
],
[
543128.2797241211,
5912669.860717773
],
[
543122.5164794922,
5912653.724914551
],
[
543090.5717163086,
5912626.014526367
],
[
543065.2230834961,
5912614.109130859
],
[
543062.5369262695,
5912591.083679199
],
[
543061.2634887695,
5912579.625671387
],
[
543061.8616943359,
5912560.014892578
],
[
542989.1051025391,
5912534.125671387
],
[
543048.3267211914,
5912327.992126465
],
[
542838.5480957031,
5912281.3201293945
],
[
542706.3060913086,
5912251.769104004
],
[
542706.2872924805,
5912251.853271484
]
]
]
]
}
{
"type": "Polygon",
"crs": {
"type": "name",
"properties": {
"name": "EPSG:25832"
}
},
"coordinates": [
[
[
543213.9880981445,
5912697.975708008
],
[
543217.0557250977,
5912698.373901367
],
[
543290.9578857422,
5912707.9705200195
],
[
543312.944519043,
5912387.097900391
],
[
543236.9743041992,
5912371.105529785
],
[
543236.9490966797,
5912371.401672363
],
[
543235.0921020508,
5912393.182312012
],
[
543213.9880981445,
5912697.975708008
]
]
]
}
Even if I reverse the two layers, I get the same result:
When
Why I loaddo not get the GeoJSON to QGIS, then both clip variants are correct. I'm assuming that I make a mistake when creatingsame result? Take the QgsFeature. I will check that. Nevertheless, I have to ask whytools not the same clip function in the first case works?!
