From 10caaacfacd2797869bf9f310207efe19da09252 Mon Sep 17 00:00:00 2001
From: Filip Leonarski <filip.leonarski@psi.ch>
Date: Sun, 7 Dec 2025 09:08:37 +0100
Subject: [PATCH] jfjoch_viewer: Access binary plot whenever possible

---
 reader/JFJochHttpReader.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/reader/JFJochHttpReader.cpp b/reader/JFJochHttpReader.cpp
index 983282dc..37369b04 100644
--- a/reader/JFJochHttpReader.cpp
+++ b/reader/JFJochHttpReader.cpp
@@ -189,6 +189,17 @@ std::vector<float> JFJochHttpReader::GetPlot_i(const std::string &plot_type, flo
         return {};
 
     httplib::Client cli_cmd(addr);
+
+    auto res_bin = cli_cmd.Get("/preview/plot.bin?type=" + plot_type);
+    if (res_bin && res_bin->status == httplib::StatusCode::OK_200) {
+        if (res_bin->body.size() % sizeof(float) != 0) {
+            throw std::runtime_error("Input size is not a multiple of sizeof(float)");
+        }
+        std::vector<float> v(res_bin->body.size() / sizeof(float));
+        std::memcpy(v.data(), res_bin->body.data(), res_bin->body.size());
+        return v;
+    }
+
     auto res = cli_cmd.Get("/preview/plot?binning=1&experimental_coord=false&fill="
                            + std::to_string(fill_value) + "&type=" + plot_type);