get the coordinates of a user-drawn polygon

[andrebelem]

First of all, congratulations Dr. Qiusheng for your fantastic work !

I became a 100% geemap user and one of the very useful functions when working with feature exploration (1) is to manually draw a polygon in an area of interest, (2) extract the coordinates with Map.draw_last_feature and then (3) export this polygon as a shapefile or even a featureCollection in the case of ee.

I looked for something similar in the leafmap but I couldn't find it, although it is possible to easily draw the polygon and see its individual points, but it seems to me that there is a lack of a similar routine to manipulate the coordinates extracted from the map.

That would be of great value.
Best wishes
Andre

[giswqs]

You can use Map.user_roi and Map.user_rois to return the last drawn shape and all drawn shapes, respectively. See #2

[andrebelem]

Perfect ! I'll do it. Thanks. Em dom., 13 de jun. de 2021 às 11:07, Qiusheng Wu ***@***.***> escreveu:

…

You can use Map.user_roi and Map.user_rois to return the last drawn shape and all drawn shapes, respectively. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#34 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AK42FDZR3JJBX5PPGPPLV2DTSS3SFANCNFSM46TY4JZQ> .

-- Prof. Andre L. Belem (Dr. rer. nat.) Observatório Oceanográfico (http://www.observatoriooceanografico.uff.br) ORCID: https://orcid.org/0000-0002-8865-6180 ResearchGate: https://www.researchgate.net/profile/Andre_Belem Linkedin: https://www.linkedin.com/in/andre-l-belem e https://www.linkedin.com/showcase/agronautas Departamento de Engenharia Agrícola e Meio Ambiente - Escola de Engenharia Universidade Federal Fluminense Rua Passo da Pátria, 156 bloco E sl 300 Campus da Praia Vermelha - São Domingos 24210-240 Niterói,RJ / Brasil Tel: 55-21-2629-5392

[andrebelem]

Sorry, but are you sure it is there ? The very simple code: import leafmap m = leafmap.Map(center=(-23,-43),zoom=12) m (then drawing a simple polygon), give me AttributeError: 'Map' object has no attribute 'user_roi' Em dom., 13 de jun. de 2021 às 11:20, Andre Luiz Belem ***@***.***> escreveu:

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Perfect ! I'll do it. Thanks. Em dom., 13 de jun. de 2021 às 11:07, Qiusheng Wu < ***@***.***> escreveu: > You can use Map.user_roi and Map.user_rois to return the last drawn > shape and all drawn shapes, respectively. > > — > You are receiving this because you authored the thread. > Reply to this email directly, view it on GitHub > <#34 (comment)>, or > unsubscribe > <https://github.com/notifications/unsubscribe-auth/AK42FDZR3JJBX5PPGPPLV2DTSS3SFANCNFSM46TY4JZQ> > . > -- Prof. Andre L. Belem (Dr. rer. nat.) Observatório Oceanográfico (http://www.observatoriooceanografico.uff.br) ORCID: https://orcid.org/0000-0002-8865-6180 ResearchGate: https://www.researchgate.net/profile/Andre_Belem Linkedin: https://www.linkedin.com/in/andre-l-belem e https://www.linkedin.com/showcase/agronautas Departamento de Engenharia Agrícola e Meio Ambiente - Escola de Engenharia Universidade Federal Fluminense Rua Passo da Pátria, 156 bloco E sl 300 Campus da Praia Vermelha - São Domingos 24210-240 Niterói,RJ / Brasil Tel: 55-21-2629-5392

-- Prof. Andre L. Belem (Dr. rer. nat.) Observatório Oceanográfico (http://www.observatoriooceanografico.uff.br) ORCID: https://orcid.org/0000-0002-8865-6180 ResearchGate: https://www.researchgate.net/profile/Andre_Belem Linkedin: https://www.linkedin.com/in/andre-l-belem e https://www.linkedin.com/showcase/agronautas Departamento de Engenharia Agrícola e Meio Ambiente - Escola de Engenharia Universidade Federal Fluminense Rua Passo da Pátria, 156 bloco E sl 300 Campus da Praia Vermelha - São Domingos 24210-240 Niterói,RJ / Brasil Tel: 55-21-2629-5392

[giswqs]

Are you using Colab? It is for ipyleaflet only.

[andrebelem]

Yes, I am! ok...so, using colab it is not possible. Not a problem at all but I was producing some notebooks for my students. But thanks anyway Em dom., 13 de jun. de 2021 às 12:07, Qiusheng Wu ***@***.***> escreveu:

…

Are you using Colab? It is for ipyleaflet only. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#34 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AK42FD4MONOIHQ32WSGOSA3TSTCR5ANCNFSM46TY4JZQ> .

-- Prof. Andre L. Belem (Dr. rer. nat.) Observatório Oceanográfico (http://www.observatoriooceanografico.uff.br) ORCID: https://orcid.org/0000-0002-8865-6180 ResearchGate: https://www.researchgate.net/profile/Andre_Belem Linkedin: https://www.linkedin.com/in/andre-l-belem e https://www.linkedin.com/showcase/agronautas Departamento de Engenharia Agrícola e Meio Ambiente - Escola de Engenharia Universidade Federal Fluminense Rua Passo da Pátria, 156 bloco E sl 300 Campus da Praia Vermelha - São Domingos 24210-240 Niterói,RJ / Brasil Tel: 55-21-2629-5392

[giswqs]

Try binder https://gishub.org/leafmap-pangeo

[andrebelem]

Thanks! It works like charm ! Em dom., 13 de jun. de 2021 às 12:22, Qiusheng Wu ***@***.***> escreveu:

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Try binder https://gishub.org/leafmap-pangeo — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#34 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AK42FD65Q26VG4YYG2IUAPTTSTELTANCNFSM46TY4JZQ> .

-- Prof. Andre L. Belem (Dr. rer. nat.) Observatório Oceanográfico (http://www.observatoriooceanografico.uff.br) ORCID: https://orcid.org/0000-0002-8865-6180 ResearchGate: https://www.researchgate.net/profile/Andre_Belem Linkedin: https://www.linkedin.com/in/andre-l-belem e https://www.linkedin.com/showcase/agronautas Departamento de Engenharia Agrícola e Meio Ambiente - Escola de Engenharia Universidade Federal Fluminense Rua Passo da Pátria, 156 bloco E sl 300 Campus da Praia Vermelha - São Domingos 24210-240 Niterói,RJ / Brasil Tel: 55-21-2629-5392

[giswqs]

In Colab, you can use the following line to add an export button to the map, but you can't use m.user_roi or m.user_rois. See https://leafmap.org/faq/#why-does-leafmap-use-two-plotting-backends-folium-and-ipyleaflet

m = leafmap.Map(draw_export=True)