Replaces the start-message TransformationAxis of the previous commit, which was the wrong shape in two ways. DetectorTransformation (common/) mirrors a NeXus NXtransformations axis and holds nothing else: name, type, units, vector, offset, depends_on and the positions themselves. Deliberately without cleverness - the values are either a single number for an axis that does not move or one per image, and nothing derives a position from a start and an increment. That is the point: a producer will later want to report where a stage actually WENT rather than where it was told to go, and a structure that stores start+increment cannot express that. A million images cost 4 MB per axis, which is not a reason to be clever. Hence also the move to the END message: measured positions are only known once the run is over. And hence no metadata version bump, which the previous commit did make. The chain is optional; when it is absent the writer builds the identical chain from the start message, exactly as before. Nothing on the wire changes for a producer that does not send it, so a broker and a writer of different releases still interwork - the constraint the previous version stated is withdrawn. The writer transcribes a chain it is given, without recomputing an angle, which is what makes measured positions possible end to end. JFJochReader_TransformationChain_SentAndBuilt writes the same run both ways and checks the two files read back the same, chi/phi included. CBORSerialize_End_Transformations covers the wire 1:1, asserting the order survives and that a moving axis keeps one value per image while a stationary one keeps a single value. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
107 lines
2.6 KiB
C++
107 lines
2.6 KiB
C++
// SPDX-FileCopyrightText: 2026 Filip Leonarski, Paul Scherrer Institute <filip.leonarski@psi.ch>
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// SPDX-License-Identifier: GPL-3.0-only
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#include <utility>
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#include "DetectorTransformation.h"
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DetectorTransformation::DetectorTransformation(std::string name, TransformationType type,
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const Coord &vector)
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: name(std::move(name)), type(type), vector(vector) {
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units = (type == TransformationType::Rotation) ? "deg" : "m";
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}
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DetectorTransformation &DetectorTransformation::Name(const std::string &input) {
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name = input;
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return *this;
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}
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DetectorTransformation &DetectorTransformation::Type(TransformationType input) {
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type = input;
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return *this;
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}
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DetectorTransformation &DetectorTransformation::Units(const std::string &input) {
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units = input;
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return *this;
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}
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DetectorTransformation &DetectorTransformation::Vector(const Coord &input) {
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vector = input;
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return *this;
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}
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DetectorTransformation &DetectorTransformation::Offset(const Coord &input) {
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offset = input;
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return *this;
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}
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DetectorTransformation &DetectorTransformation::DependsOn(const std::string &input) {
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depends_on = input;
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return *this;
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}
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DetectorTransformation &DetectorTransformation::Equipment(const std::string &input) {
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equipment = input;
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return *this;
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}
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DetectorTransformation &DetectorTransformation::EquipmentComponent(const std::string &input) {
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equipment_component = input;
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return *this;
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}
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DetectorTransformation &DetectorTransformation::Values(const std::vector<float> &input) {
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values = input;
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return *this;
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}
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DetectorTransformation &DetectorTransformation::Value(float input) {
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values = {input};
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return *this;
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}
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const std::string &DetectorTransformation::GetName() const {
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return name;
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}
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TransformationType DetectorTransformation::GetType() const {
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return type;
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}
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const std::string &DetectorTransformation::GetUnits() const {
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return units;
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}
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Coord DetectorTransformation::GetVector() const {
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return vector;
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}
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Coord DetectorTransformation::GetOffset() const {
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return offset;
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}
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const std::string &DetectorTransformation::GetDependsOn() const {
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return depends_on;
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}
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const std::string &DetectorTransformation::GetEquipment() const {
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return equipment;
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}
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const std::string &DetectorTransformation::GetEquipmentComponent() const {
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return equipment_component;
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}
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const std::vector<float> &DetectorTransformation::GetValues() const {
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return values;
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}
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bool DetectorTransformation::IsRotation() const {
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return type == TransformationType::Rotation;
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}
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bool DetectorTransformation::IsConstant() const {
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return values.size() <= 1;
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}
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