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import leafmap
import solara
import geopandas as gpd
# external script defines polygons, etc
#from fire import *
nps = gpd.read_file("/vsicurl/https://huggingface.co/datasets/cboettig/biodiversity/resolve/main/data/NPS.gdb")
calfire = gpd.read_file("/vsicurl/https://huggingface.co/datasets/cboettig/biodiversity/resolve/main/data/fire22_1.gdb", layer = "firep22_1")
# fire = gpd.read_file("/vsizip/vsicurl/https://edcintl.cr.usgs.gov/downloads/sciweb1/shared/MTBS_Fire/data/composite_data/burned_area_extent_shapefile/mtbs_perimeter_data.zip"
# extract and reproject the Joshua Tree NP Polygon
jtree = nps[nps.PARKNAME == "Joshua Tree"].to_crs(calfire.crs)
# All Fires in the DB that intersect the Park
jtree_fires = jtree.overlay(calfire, how="intersection")
# Extract a polygon if interest. > 2015 for Sentinel, otherwise we can use LandSat
recent = jtree_fires[jtree_fires.YEAR_ > "2015"]
big = recent[recent.Shape_Area == recent.Shape_Area.max()].to_crs("EPSG:4326")
zoom = solara.reactive(14)
center = solara.reactive((34, -116))
# location of cached COGs
before_url = "https://huggingface.co/datasets/cboettig/solara-data/resolve/main/before.tif"
after_url = "https://huggingface.co/datasets/cboettig/solara-data/resolve/main/after.tif"
# custom polygon appearance
style = {
"stroke": False,
"fill": True,
"fillColor": "#ff6666",
"fillOpacity": 0.5,
}
class Map(leafmap.Map):
def __init__(self, **kwargs):
super().__init__(**kwargs)
# Add what you want below
self.add_gdf(jtree_fires, "All Fires", )
self.add_gdf(big, big.FIRE_NAME.item())
self.split_map(before_url, after_url,
left_label = "NBS before fire",
right_label = "NBS after fire")
@solara.component
def Page():
with solara.Column(style={"min-width": "500px"}):
# solara components support reactive variables
# solara.SliderInt(label="Zoom level", value=zoom, min=1, max=20)
# using 3rd party widget library require wiring up the events manually
# using zoom.value and zoom.set
Map.element( # type: ignore
zoom=zoom.value,
on_zoom=zoom.set,
center=center.value,
on_center=center.set,
scroll_wheel_zoom=True,
toolbar_ctrl=False,
data_ctrl=False,
height="780px",
)
solara.Text(f"Zoom: {zoom.value}")
solara.Text(f"Center: {center.value}")
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