v1.0.0-rc.179 (#90)

* Rugnux: Stills processing needs only the unit cell and space group beyond what the file records - detector distance, beam centre, tilt, panel placement, saturation level, gain and polarisation plane are found from the images - and is up to twice as fast.
* Rugnux: Stills can be indexed without a GPU, with a CPU implementation of the fast-feedback indexer (macOS, computers without a GPU).
* Rugnux: Rotation and stills data are integrated in the detector's own units with one gain model, improving data from CCD detectors.
* Web frontend: The Rugnux live page shows the placed model with its electron density and anomalous difference map in a Mol* viewer.

Reviewed-on: #90
Co-authored-by: Filip Leonarski <filip.leonarski@psi.ch>

image_analysis/image_preprocessing/ImagePreprocessorBuffer.h

@@ -8,8 +8,15 @@
 #include <cstddef>
 #include <climits>
 
+#include "../../common/PanelBoxes.h"
+
 class ImagePreprocessorBuffer {
 protected:
+    // The panels the image is made of (PanelBoxes); empty means one, the whole image.
+    std::vector<PanelBox> panels;
+    // The box the square about pixel (x, y) is clipped to: its panel's, or the image's.
+    PanelBox TileBox(int32_t x, int32_t y, int width) const;
+
     // The image size, kept apart from `buffer` so size() still answers when the host copy was not
     // allocated at all (see the host_mirror constructor).
     const size_t npixels;
@@ -46,9 +53,13 @@ public:
     virtual void Gather(const std::vector<uint32_t> &npixel, std::vector<int32_t> &values) const;
 
     // The (2*half+1)^2 pixels about each (x[i], y[i]) of the image, `width` pixels wide: square after
-    // square, each row by row, with a pixel off the image read as INT32_MIN. Valid until the next call.
+    // square, each row by row, with a pixel off the image - or off the panel (x[i], y[i]) is on - read as
+    // INT32_MIN. Valid until the next call.
     virtual const int32_t *GatherTiles(const std::vector<int32_t> &x, const std::vector<int32_t> &y,
                                        int width, int half);
+    // The panels of the image, for GatherTiles. Default: none, the whole image is one.
+    void SetPanels(const std::vector<PanelBox> &in_panels) { panels = in_panels; }
+
     // The whole image on the host - on the GPU copied there first, where it was not already.
     virtual const int32_t *HostImage();
 private: