Conic projections

detroit.geo_conic_conformal() Projection

the conic conformal projection. the parallels default to [30°, 30°] resulting in flat top.

Returns:

projection object

Return type:

projection

../../../_images/light-projection-conic_conformal.png ../../../_images/dark-projection-conic_conformal.png
detroit.geo_conic_equal_area() Projection

The Albers’ equal-area conic projection.

Returns:

Projection object

Return type:

Projection

../../../_images/light-projection-conic_equal_area.png ../../../_images/dark-projection-conic_equal_area.png
detroit.geo_conic_equidistant() Projection

The Albers’ equidistant conic projection.

Returns:

Projection object

Return type:

Projection

../../../_images/light-projection-conic_equidistant.png ../../../_images/dark-projection-conic_equidistant.png
detroit.geo_albers() Projection

The Albers’ equal area-conic projection. This is a U.S.-centric configuration of d3.geo_conic_equal_area.

Returns:

Projection object

Return type:

Projection

../../../_images/light-projection-albers.png ../../../_images/dark-projection-albers.png
detroit.geo_albers_usa() Projection

This is a U.S.-centric composite projection of three geoConicEqualArea projections: d3.geo_albers is used for the lower forty-eight states, and separate conic equal-area projections are used for Alaska and Hawaii. The scale for Alaska is diminished: it is projected at \(0.35 \times\) its true relative area.

The constituent projections have fixed clip, center and rotation, and thus this projection does not support Projection.set_center, Projection.rotate, Projection.set_clip_angle or Projection.set_clip_extent.

Returns:

Projection object

Return type:

Projection

../../../_images/light-projection-albers_usa.png ../../../_images/dark-projection-albers_usa.png