diff --git a/src/core/algo/GeoVolumeBuilder.cpp b/src/core/algo/GeoVolumeBuilder.cpp
index 201ce71..037380b 100644
--- a/src/core/algo/GeoVolumeBuilder.cpp
+++ b/src/core/algo/GeoVolumeBuilder.cpp
@@ -22,6 +22,7 @@
 #include "io/gpr/GpsTrack.hpp"
 #include "io/gpr/IprHeader.hpp"
 #include "io/gpr/IprbReader.hpp"
+#include "io/gpr/LocalPath.hpp"
 
 namespace fs = std::filesystem;
 
@@ -33,7 +34,7 @@ constexpr double kPi = 3.14159265358979323846;
 
 // 读 .iprh 文本 → 解析头（与 .iprb 同名）。
 geopro::io::gpr::IprHeader readHeaderFor(const std::string& iprbPath) {
-  fs::path h = fs::path(iprbPath).replace_extension(".iprh");
+  fs::path h = geopro::io::gpr::localPath(iprbPath).replace_extension(".iprh");
   std::ifstream f(h);
   if (!f) throw std::runtime_error("GeoVolumeBuilder: 打不开 iprh " + h.string());
   std::string text((std::istreambuf_iterator<char>(f)),
@@ -55,7 +56,7 @@ std::int64_t totalTracesOf(const std::vector<std::string>& iprb, int samples) {
   const std::int64_t per = static_cast<std::int64_t>(samples) * 2;
   if (per <= 0) throw std::runtime_error("samples<=0");
   for (const auto& p : iprb) {
-    const std::int64_t bytes = static_cast<std::int64_t>(fs::file_size(p));
+    const std::int64_t bytes = static_cast<std::int64_t>(fs::file_size(geopro::io::gpr::localPath(p)));
     minTr = std::min(minTr, bytes / per);
   }
   return minTr;
@@ -137,7 +138,7 @@ GeoBuildResult buildGeoVolume(const std::vector<GeoLineInput>& lines,
     for (const auto& p : tracks[i].pts)
       sc.trackM.push_back(lonLatToLocalM(p.lat, p.lon, minLat, minLon));
 
-    std::ifstream ordF(lines[i].ord);
+    std::ifstream ordF(geopro::io::gpr::localPath(lines[i].ord));
     if (!ordF) throw std::runtime_error("buildGeoVolume: 打不开 ord " + lines[i].ord);
     std::string ordText((std::istreambuf_iterator<char>(ordF)),
                         std::istreambuf_iterator<char>());