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Add the last few realizations of WGS84 #114

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Feb 25, 2025
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Add the last few realizations of WGS84 #114

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9 changes: 9 additions & 0 deletions swiftnav/src/reference_frame/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -125,6 +125,15 @@ pub enum ReferenceFrame {
#[allow(non_camel_case_types)]
#[strum(to_string = "DREF91(R2016)", serialize = "DREF91_R2016")]
DREF91_R2016,
#[allow(non_camel_case_types)]
#[strum(to_string = "WGS84(G1762)", serialize = "WGS84_G1762")]
WGS84_G1762,
#[allow(non_camel_case_types)]
#[strum(to_string = "WGS84(G2139)", serialize = "WGS84_G2139")]
WGS84_G2139,
#[allow(non_camel_case_types)]
#[strum(to_string = "WGS84(G2296)", serialize = "WGS84_G2296")]
WGS84_G2296,
}

/// 15-parameter Helmert transformation parameters
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68 changes: 67 additions & 1 deletion swiftnav/src/reference_frame/params.rs
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
use super::{ReferenceFrame, TimeDependentHelmertParams, Transformation};

pub const TRANSFORMATIONS: [Transformation; 31] = [
pub const TRANSFORMATIONS: [Transformation; 34] = [
Transformation {
from: ReferenceFrame::ITRF2020,
to: ReferenceFrame::ITRF2014,
Expand Down Expand Up @@ -652,4 +652,70 @@ pub const TRANSFORMATIONS: [Transformation; 31] = [
epoch: 2021.0,
},
},
// WGS84(G2296) is defined to be the same as ITRF2020 at epoch 2024.0
Transformation {
from: ReferenceFrame::ITRF2020,
to: ReferenceFrame::WGS84_G2296,
params: TimeDependentHelmertParams {
tx: 0.0,
tx_dot: 0.0,
ty: 0.0,
ty_dot: 0.0,
tz: 0.0,
tz_dot: 0.0,
s: 0.0,
s_dot: 0.0,
rx: 0.0,
rx_dot: 0.0,
ry: 0.0,
ry_dot: 0.0,
rz: 0.0,
rz_dot: 0.0,
epoch: 2024.0,
},
},
// WGS84(G2139) is defined to be the same as ITRF2014 at epoch 2016.0
Transformation {
from: ReferenceFrame::ITRF2014,
to: ReferenceFrame::WGS84_G2139,
params: TimeDependentHelmertParams {
tx: 0.0,
tx_dot: 0.0,
ty: 0.0,
ty_dot: 0.0,
tz: 0.0,
tz_dot: 0.0,
s: 0.0,
s_dot: 0.0,
rx: 0.0,
rx_dot: 0.0,
ry: 0.0,
ry_dot: 0.0,
rz: 0.0,
rz_dot: 0.0,
epoch: 2016.0,
},
},
// WGS84(G1762) is defined to be the same as ITRF2008 at epoch 2005.0
Transformation {
from: ReferenceFrame::ITRF2008,
to: ReferenceFrame::WGS84_G1762,
params: TimeDependentHelmertParams {
tx: 0.0,
tx_dot: 0.0,
ty: 0.0,
ty_dot: 0.0,
tz: 0.0,
tz_dot: 0.0,
s: 0.0,
s_dot: 0.0,
rx: 0.0,
rx_dot: 0.0,
ry: 0.0,
ry_dot: 0.0,
rz: 0.0,
rz_dot: 0.0,
epoch: 2005.0,
},
},
];
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