pages/02_Solos.py

import os
import leafmap
import solara
import ipywidgets as widgets
from leafmap import leafmap
import leafmap.colormaps as cm

zoom = solara.reactive(2)
center = solara.reactive((20, 0))



maps = {
                    'Most limiting soil quality rating factor': 'https://s3.eu-west-1.amazonaws.com/data.gaezdev.aws.fao.org/LR/soi1/SQ0_mze_v9aH.tif',
                    "Nutrient retention capacity": 'https://s3.eu-west-1.amazonaws.com/data.gaezdev.aws.fao.org/LR/soi1/SQ2_mze_v9aH.tif',
                    "Rooting conditions" : 'https://s3.eu-west-1.amazonaws.com/data.gaezdev.aws.fao.org/LR/soi1/SQ3_mze_v9aH.tif',
                    'Soil and terrain suitability, rain-fed': 'https://s3.eu-west-1.amazonaws.com/data.gaezdev.aws.fao.org/LR/soi2/siHr_sst_mze.tif'
                }

maps_list= list(maps)
maps_values= list(maps.values())


legend_dict1 = {
    "NA": "#FFFFFF",             # Branco
    "0.0 - 0.1": "#8B0000",      # Vermelho escuro
    "0.1 - 0.2": "#FF4500",      # Laranja avermelhado
    "0.2 - 0.3": "#FFA500",      # Laranja
    "0.3 - 0.4": "#FFD700",      # Amarelo dourado
    "0.4 - 0.5": "#FFFF00",      # Amarelo
    "0.5 - 0.6": "#ADFF2F",      # Verde amarelado
    "0.6 - 0.7": "#7FFF00",      # Verde limão
    "0.7 - 0.8": "#32CD32",      # Verde médio
    "0.8 - 0.9": "#008000",      # Verde
    "0.9 - 1.0": "#006400",      # Verde escuro
    "Permafrost": "#B0C4DE",     # Cinza claro azulado
    "Not evaluated": "#A9A9A9",  # Cinza escuro
    "Water": "#0000FF",          # Azul
}

hex_colors_dict = {
    0: "#FFFFFF",  # NA
    1: "#8B0000",  # 0.0 - 0.1
    2: "#FF4500",  # 0.1 - 0.2
    3: "#FFA500",  # 0.2 - 0.3
    4: "#FFD700",  # 0.3 - 0.4
    5: "#FFFF00",  # 0.4 - 0.5
    6: "#ADFF2F",  # 0.5 - 0.6
    7: "#7FFF00",  # 0.6 - 0.7
    8: "#32CD32",  # 0.7 - 0.8
    9: "#008000",  # 0.8 - 0.9
    10: "#006400",  # 0.9 - 1.0
    11: "#B0C4DE",  # Permafrost
    12: "#A9A9A9",  # Not evaluated
    13: "#0000FF",  # Water
}

      
    

def add_widgets(m):
            
            
            setattr(m, "zoom_to_layer", True)
            style = {"description_width": "initial"}
            padding = "0px 0px 0px 5px"

            
            

            
            
            image = widgets.Dropdown(
                value=None,
                options=[('Most limiting soil quality rating factor', maps_values[0]),
                        ('Nutrient retention capacity', maps_values[1]),
                        ('Rooting conditions', maps_values[2]),
                        ('Soil and terrain suitability, rain-fed', maps_values[3]),
                            ],
                description="Image:",
                style=style,
                layout=widgets.Layout(width="270px", padding=padding),
            )

            

            output = widgets.Output()


           
            
            

            def change_image(change):
                if change.new:
                    if change.new not in m.get_layer_names():
                        #mosaic = f"{url}/datasets/{dataset.value}/{image.value}.json"
                        layer_list = m.get_layer_names()
                        
                        for layer in layer_list:
                            m.remove_layer(m.find_layer(layer))
                        #municipiosBR= 'https://geoftp.ibge.gov.br/organizacao_do_territorio/malhas_territoriais/malhas_municipais/municipio_2023/Brasil/BR_Municipios_2023.zip'
                        #estadosBR = 'https://geoftp.ibge.gov.br/organizacao_do_territorio/malhas_territoriais/malhas_municipais/municipio_2023/Brasil/BR_UF_2023.zip'
                        m.add_basemap("HYBRID")
                        #m.add_shp(estadosBR, layer_name='EstadosBR')
                        #m.add_shp(municipiosBR, layer_name='MunicipiosBR')
                        #m.remove_legend()

                        if image.value == maps_values[0]:
  
                            m.add_cog_layer(image.value, name= maps_list[0], colormap = hex_colors_dict, nodata =0)
                            m.add_legend(legend_title="Legend", legend_dict=legend_dict1)
        
                        
                        elif image.value == maps_values[1]:
             
                            m.add_cog_layer(image.value, name= maps_list[1], colormap = hex_colors_dict, nodata =0)
                            m.add_legend(legend_title="Legend", legend_dict=legend_dict1)
                        
                        elif image.value == maps_values[2]:

                            m.add_cog_layer(image.value, name= maps_list[2], colormap = hex_colors_dict, nodata=0)
                            m.add_legend(legend_title="Legend", legend_dict=legend_dict1)
                        
                        elif image.value == maps_values[3]:
                            colors_dict = {
                                                0: "#FFFFFF10",  # Branco
                                                1: "#006400",    # Verde escuro
                                                2: "#008000",    # Verde
                                                3: "#ADFF2F",    # Verde claro
                                                4: "#FFFF00",    # Amarelo
                                                5: "#DAA520",    # Dourado escuro
                                                6: "#FF8C00",    # Laranja
                                                7: "#A9A9A9",    # Cinza escuro
                                                8: "#D3D3D3",    # Cinza claro
                                                9: "#0000FF",    # Azul
                                                10: "#FF0000"    # Vermelho
                                            }
                            legend_dict = {
                                        "NA": "#FFFFFF",  # Branco
                                        "SI > 75 : Very high": "#006400",  # Verde escuro
                                        "SI > 63 : High": "#008000",       # Verde
                                        "SI > 50 : Good": "#ADFF2F",       # Verde claro
                                        "SI > 35 : Medium": "#FFFF00",     # Amarelo
                                        "SI > 20 : Moderate": "#DAA520",   # Dourado escuro
                                        "SI > 10 : Marginal": "#FF8C00",   # Laranja
                                        "SI > 0 : Very marginal": "#A9A9A9",  # Cinza escuro
                                        "Not suitable": "#D3D3D3",         # Cinza claro
                                        "No cultivation": "#0000FF",       # Azul
                                        "Water": "#FF0000"                 # Vermelho
                                    }
                             

                            m.add_cog_layer(image.value, name= maps_list[3], colormap = colors_dict,nodata=0)
                            m.add_legend(legend_title="Legend", legend_dict=legend_dict)
   
                        
                    output.outputs = ()
                        #output.append_stdout(f"Image date: {image_date}\n")

            image.observe(change_image, names="value")
                
            box = widgets.VBox(
                [ image, output]
            )
            m.add_widget(box, position="topright", add_header=False)


class Map(leafmap.Map):
        def __init__(self, **kwargs):
            super().__init__(**kwargs)
          
            add_widgets(self)
            
            self.add_layer_manager(opened= True)
                 

    
@solara.component
def Page():
    with solara.Column(style={"min-width": "500px"}):
        Map.element(
            zoom=zoom.value,
            on_zoom=zoom.set,
            center=center.value,
            on_center=center.set,
            height="600px",
            toolbar_ctrl=False,
            data_ctrl=True,
        )