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mattijn
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Published
By
mattijn
Edited
Apr 26, 2021
Insert cell
md
`# single point has no extent`
Insert cell
function
fit_extent
(
data
)
{
const
p
=
d3
.
geoMercator
(
)
p
.
fitExtent
(
[
[
0
,
0
]
,
[
500
,
500
]
]
,
data
)
const
s
=
p
.
scale
(
)
const
t
=
p
.
translate
(
)
return
`scale: ${
s
}\ntranslate: ${
t
}`
;
}
Insert cell
// single point, extent computation no good
fit_extent
(
{
"type"
:
"Feature"
,
"geometry"
:
{
"type"
:
"Point"
,
"coordinates"
:
[
4.8885
,
52.4039
]
}
}
)
Insert cell
// multi point, extent computation just fine
fit_extent
(
{
"type"
:
"Feature"
,
"geometry"
:
{
"type"
:
"MultiPoint"
,
"coordinates"
:
[
[
4.8885
,
52.4039
]
,
[
5.8885
,
53.4039
]
]
}
}
)
Insert cell
d3
=
require
(
"d3@6"
)
Insert cell
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