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Eric Field
Building and Using Tools to See. UVA Architecture + Data Science. IT Director. Instructor.
Workspace
Fork
Public
Maps
By
Eric Field
Edited
Mar 30, 2024
Fork of
Maps (Geographic)
•
3 forks
1
Insert cell
Insert cell
<
svg
width
=
"1000"
height
=
"500"
>
</
svg
>
Insert cell
map
=
d3
.
select
(
mapContainer
)
Insert cell
Insert cell
Insert cell
world
=
FileAttachment
(
"world-110m.geo.json"
)
.
json
(
)
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Insert cell
projection
=
d3
.
geoMercator
(
)
// just the standard, common, Mercator projection
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Insert cell
pathGenerator
=
d3
.
geoPath
(
)
.
projection
(
projection
)
;
// to create SVG paths from the points of the GIS features
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Insert cell
drawMap
=
{
let
mapLayer
=
map
.
append
(
"g"
)
.
attr
(
"id"
,
"countries"
)
.
selectAll
(
"path"
)
.
data
(
world
.
features
)
.
join
(
"path"
)
.
attr
(
"d"
,
pathGenerator
)
.
attr
(
"id"
,
d
=>
d
[
"id"
]
)
;
return
mapLayer
;
}
Insert cell
<
style
>
#
countries
path
{
fill
:
#eeeeee
;
stroke
:
#ccc
}
</
style
>
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mapContainer
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map
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world
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projection
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pathGenerator
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drawMap
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