Detector Geometry customization

common/DetectorGeometry.cpp

@@ -0,0 +1,86 @@
+// Copyright (2019-2022) Paul Scherrer Institute
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "DetectorGeometry.h"
+#include "JFJochException.h"
+#include "Definitions.h"
+
+DetectorGeometry::DetectorGeometry(const std::vector<DetectorModuleGeometry> &in_modules)
+        : modules(in_modules) {
+    if (modules.empty())
+        throw JFJochException(JFJochExceptionCategory::InputParameterInvalid, "Module number must be positive");
+
+    width = 0;
+    height = 0;
+
+    for (auto &m: modules) {
+        width = std::max<int64_t>(width, m.GetMaxX()+1);
+        height = std::max<int64_t>(height, m.GetMaxY()+1);
+    }
+}
+
+DetectorGeometry::DetectorGeometry(int32_t nmodules, int32_t horizontal_stacking, int32_t gap_x,
+                                   int32_t gap_y, bool mirror_y) {
+    if (horizontal_stacking <= 0)
+        throw JFJochException(JFJochExceptionCategory::InputParameterInvalid, "Horizontal stacking must be positive");
+    if (nmodules <= 0)
+        throw JFJochException(JFJochExceptionCategory::InputParameterInvalid, "Module number must be positive");
+    if (gap_x < 0)
+        throw JFJochException(JFJochExceptionCategory::InputParameterInvalid, "Gap x has to be non-negative");
+    if (gap_y < 0)
+        throw JFJochException(JFJochExceptionCategory::InputParameterInvalid, "Gap y has to be non-negative");
+
+    width = horizontal_stacking * CONVERTED_MODULE_COLS + (horizontal_stacking - 1) * gap_x;
+    int64_t conv_lines = nmodules / horizontal_stacking + (nmodules % horizontal_stacking > 0 ? 1 : 0);
+    height = conv_lines * CONVERTED_MODULE_LINES + (conv_lines - 1) * gap_y;
+
+    for (int module = 0; module < nmodules; module++) {
+        int64_t module_x = module % horizontal_stacking;
+        int64_t module_y = module / horizontal_stacking;
+
+        int64_t x0 = module_x * (CONVERTED_MODULE_COLS + gap_x);
+        int64_t y0 = module_y * (CONVERTED_MODULE_LINES + gap_y);
+
+        DetectorModuleGeometry::Direction fast = DetectorModuleGeometry::Direction::Xpos;
+        DetectorModuleGeometry::Direction slow;
+        if (mirror_y) {
+            y0 = height - y0 - 1;
+            slow = DetectorModuleGeometry::Direction::Yneg;
+        } else
+            slow = DetectorModuleGeometry::Direction::Ypos;
+
+        modules.emplace_back(x0, y0, fast, slow);
+    }
+}
+
+DetectorGeometry::operator JFJochProtoBuf::DetectorGeometry() const {
+    JFJochProtoBuf::DetectorGeometry ret;
+    ret.set_height_pxl(height);
+    ret.set_width_pxl(width);
+    for (auto &m: modules) {
+        auto mpbf = ret.add_module_geometry();
+        mpbf->set_pixel0(m.GetPixel0_X() + width * m.GetPixel0_Y());
+        mpbf->set_fast_direction_step(GetDirectionStep(m.GetFastAxis()));
+        mpbf->set_slow_direction_step(GetDirectionStep(m.GetSlowAxis()));
+    }
+    return ret;
+}
+
+int64_t DetectorGeometry::GetDirectionStep(DetectorModuleGeometry::Direction direction) const {
+    switch (direction) {
+        case DetectorModuleGeometry::Direction::Xneg:
+            return -1;
+        case DetectorModuleGeometry::Direction::Xpos:
+            return 1;
+        case DetectorModuleGeometry::Direction::Yneg:
+            return -width;
+        case DetectorModuleGeometry::Direction::Ypos:
+            return width;
+        default:
+            return 0;
+    }
+}
+
+int64_t DetectorGeometry::GetModulesNum() const {
+    return modules.size();
+}