feat/vtk-3d-view #7
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@ -1,6 +1,9 @@
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add_library(geopro_io_gpr STATIC IprHeader.cpp IprbReader.cpp GprGeometry.cpp)
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add_library(geopro_io_gpr STATIC
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IprHeader.cpp IprbReader.cpp GprGeometry.cpp GprSurveyAssembler.cpp)
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target_include_directories(geopro_io_gpr PUBLIC ${CMAKE_SOURCE_DIR}/src)
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target_compile_features(geopro_io_gpr PUBLIC cxx_std_17)
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# GprSurveyAssembler 返回 geopro::core::GprSurvey(头文件内联,仅需 include 解析)。
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target_link_libraries(geopro_io_gpr PUBLIC geopro_core)
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# 纯 C++17 解析层,零 Qt/VTK。顶层全局开启了 AUTOMOC/UIC/RCC,这里显式关闭保持纯净。
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set_target_properties(geopro_io_gpr PROPERTIES AUTOMOC OFF AUTOUIC OFF AUTORCC OFF)
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@ -0,0 +1,114 @@
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#include "io/gpr/GprSurveyAssembler.hpp"
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#include <algorithm>
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#include <cstddef>
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#include <fstream>
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#include <numeric>
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#include <sstream>
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#include <stdexcept>
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#include "io/gpr/GprGeometry.hpp"
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#include "io/gpr/IprHeader.hpp"
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#include "io/gpr/IprbReader.hpp"
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namespace geopro::io::gpr {
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namespace {
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// 把 .iprb 路径的扩展名替换为 .iprh(取最后一个 '.' 之后)。
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std::string toHeaderPath(const std::string& iprbPath) {
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const std::size_t dot = iprbPath.find_last_of('.');
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const std::size_t slash = iprbPath.find_last_of("/\\");
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// 仅当 '.' 在最后一个路径分隔符之后才视为扩展名。
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if (dot != std::string::npos &&
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(slash == std::string::npos || dot > slash)) {
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return iprbPath.substr(0, dot) + ".iprh";
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}
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return iprbPath + ".iprh";
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}
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std::string readFileText(const std::string& path) {
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std::ifstream f(path, std::ios::binary);
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if (!f) {
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throw std::runtime_error("无法打开文件: " + path);
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}
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std::ostringstream ss;
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ss << f.rdbuf();
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return ss.str();
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}
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} // namespace
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geopro::core::GprSurvey assembleGprSurvey(
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const std::vector<std::string>& channelIprbPaths,
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const std::string& ordPath) {
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// 1. .ord -> 各通道横偏(文件序)。
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const std::vector<double> channelY0 =
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parseChannelXOffsets(readFileText(ordPath));
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if (channelY0.size() != channelIprbPaths.size()) {
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throw std::runtime_error(
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"通道数不一致: .ord 有效通道数与 .iprb 路径数量不符");
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}
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const std::size_t nchan = channelIprbPaths.size();
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if (nchan == 0) {
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throw std::runtime_error("无通道可装配");
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}
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// 2. 各通道读 header + BScan。
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std::vector<IprHeader> headers;
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std::vector<BScan> scans;
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headers.reserve(nchan);
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scans.reserve(nchan);
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for (const std::string& iprbPath : channelIprbPaths) {
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const IprHeader h = parseIprHeader(readFileText(toHeaderPath(iprbPath)));
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headers.push_back(h);
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scans.push_back(readIprb(iprbPath, h));
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}
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// 3. 校验 samples 一致;ntraces 取各通道 traces 最小值(对齐)。
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const int samples = scans.front().samples;
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std::int64_t minTraces = scans.front().traces;
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for (std::size_t c = 0; c < nchan; ++c) {
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if (scans[c].samples != samples) {
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throw std::runtime_error("通道 samples 不一致");
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}
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minTraces = std::min(minTraces, scans[c].traces);
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}
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// 4. 由首通道 header 定标尺。
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geopro::core::GprSurvey survey;
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survey.samples = samples;
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survey.ntraces = static_cast<int>(minTraces);
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survey.x0 = 0.0;
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survey.dx = headers.front().distanceInterval;
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survey.z0 = 0.0;
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survey.dz = (samples > 1) ? depthOfSample(1, headers.front()) : 0.0;
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// 5. 按 Y 升序求置换:order[c] = 升序第 c 位对应的原通道索引。
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std::vector<std::size_t> order(nchan);
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std::iota(order.begin(), order.end(), std::size_t{0});
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std::stable_sort(order.begin(), order.end(),
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[&](std::size_t a, std::size_t b) {
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return channelY0[a] < channelY0[b];
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});
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survey.channelY.resize(nchan);
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const std::size_t ntraces = static_cast<std::size_t>(survey.ntraces);
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const std::size_t ns = static_cast<std::size_t>(samples);
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survey.values.assign(nchan * ntraces * ns, 0.0);
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for (std::size_t c = 0; c < nchan; ++c) {
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const std::size_t src = order[c];
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survey.channelY[c] = channelY0[src];
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const BScan& bscan = scans[src];
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for (std::size_t t = 0; t < ntraces; ++t) {
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for (std::size_t s = 0; s < ns; ++s) {
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survey.values[(c * ntraces + t) * ns + s] =
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static_cast<double>(bscan.data[t * ns + s]);
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}
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}
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}
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return survey;
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}
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} // namespace geopro::io::gpr
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@ -0,0 +1,28 @@
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#ifndef GEOPRO_IO_GPR_GPRSURVEYASSEMBLER_HPP
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#define GEOPRO_IO_GPR_GPRSURVEYASSEMBLER_HPP
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#include <string>
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#include <vector>
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#include "core/model/GprSurvey.hpp"
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namespace geopro::io::gpr {
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// 把真实 GPR 一条测线的若干通道 .iprb(同目录同名 .iprh) + .ord 装配成 GprSurvey。
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//
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// channelIprbPaths:该线各通道 .iprb 路径,每个同目录有同名 .iprh(扩展名替换为 .iprh)。
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// ordPath:.ord 文件路径,提供各有效通道横偏(Y)。
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//
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// 规则:
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// - .ord 有效通道数须与 channelIprbPaths 数量一致(否则抛 std::runtime_error);
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// - 各通道 samples 须相等(否则抛);ntraces = 各通道 traces 最小值(对齐);
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// - x0=0, dx=header.distanceInterval;z0=0, dz=depthOfSample(1,h)(samples<=1 则 0);
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// - channelY 按 Y 升序排序,values 通道维同步重排;
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// - values[(c*ntraces+t)*samples+s] = 该通道 BScan(t,s) 值(int16->double)。
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geopro::core::GprSurvey assembleGprSurvey(
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const std::vector<std::string>& channelIprbPaths,
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const std::string& ordPath);
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} // namespace geopro::io::gpr
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#endif // GEOPRO_IO_GPR_GPRSURVEYASSEMBLER_HPP
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@ -195,6 +195,8 @@ target_link_libraries(geopro_tests PRIVATE geopro_controller Qt6::Test)
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target_sources(geopro_tests PRIVATE io/gpr/test_ipr_header.cpp)
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target_sources(geopro_tests PRIVATE io/gpr/test_iprb_reader.cpp)
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target_sources(geopro_tests PRIVATE io/gpr/test_gpr_geometry.cpp)
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# GprSurveyAssembler:若干通道 .iprb + .ord -> GprSurvey(samples 校验/traces 对齐/Y 升序重排)。
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target_sources(geopro_tests PRIVATE io/gpr/test_gpr_survey_assembler.cpp)
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target_link_libraries(geopro_tests PRIVATE geopro_io_gpr)
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add_subdirectory(spike) # spike S3: banded contour 渲染验证
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#include "io/gpr/GprSurveyAssembler.hpp"
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#include <gtest/gtest.h>
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#include <fstream>
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#include <filesystem>
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#include <cstdint>
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#include <stdexcept>
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#include <vector>
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using namespace geopro::io::gpr;
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namespace {
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void writeText(const std::string& p, const std::string& s) {
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std::ofstream f(p);
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f << s;
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}
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void writeI16(const std::string& p, const std::vector<int16_t>& v) {
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std::ofstream f(p, std::ios::binary);
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f.write(reinterpret_cast<const char*>(v.data()),
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static_cast<std::streamsize>(v.size() * sizeof(int16_t)));
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}
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// samples=2, lastTrace=1 -> traces=2; CHANNELS 仅供头解析,不影响装配。
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const char* HDR =
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"SAMPLES: 2\nLAST TRACE: 1\nCHANNELS: 2\nTIMEWINDOW: 4.0\n"
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"SOIL VELOCITY: 100.000000\nDISTANCE INTERVAL: 0.05\n";
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} // namespace
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TEST(GprSurveyAssembler, AssemblesTwoChannels) {
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auto d = (std::filesystem::temp_directory_path() / "gpr_asm").string();
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std::filesystem::create_directories(d);
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// 通道 A(横偏 1.0, 值 10,11, 12,13), 通道 B(横偏 0.0, 值 20..23)。
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// B 的 Y 更小, 用于验证按 Y 升序重排。
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writeText(d + "/A.iprh", HDR);
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writeI16(d + "/A.iprb", {10, 11, 12, 13}); // [trace*samples+s]
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writeText(d + "/B.iprh", HDR);
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writeI16(d + "/B.iprb", {20, 21, 22, 23});
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writeText(d + "/x.ord", "0 1.0 -1.5 1\n1 0.0 -1.5 1\n"); // A->1.0, B->0.0
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auto s = assembleGprSurvey({d + "/A.iprb", d + "/B.iprb"}, d + "/x.ord");
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EXPECT_EQ(s.samples, 2);
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EXPECT_EQ(s.ntraces, 2);
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EXPECT_NEAR(s.x0, 0.0, 1e-9);
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EXPECT_NEAR(s.z0, 0.0, 1e-9);
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EXPECT_NEAR(s.dx, 0.05, 1e-9);
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// depthOfSample(1,h) = 1e8 * (1 * 4/(2-1) * 1e-9) / 2 = 0.2
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EXPECT_NEAR(s.dz, 0.2, 1e-6);
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ASSERT_EQ(s.channelY.size(), 2u);
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EXPECT_NEAR(s.channelY[0], 0.0, 1e-9); // 升序: B(0.0) 在前
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EXPECT_NEAR(s.channelY[1], 1.0, 1e-9); // A(1.0) 在后
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// 升序后通道0=B, 通道1=A
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EXPECT_NEAR(s.at(0, 0, 0), 20.0, 1e-9); // B 的 (t0,s0)
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EXPECT_NEAR(s.at(0, 1, 1), 23.0, 1e-9); // B 的 (t1,s1)
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EXPECT_NEAR(s.at(1, 0, 0), 10.0, 1e-9); // A 的 (t0,s0)
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EXPECT_NEAR(s.at(1, 1, 1), 13.0, 1e-9); // A 的 (t1,s1)
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std::filesystem::remove_all(d);
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}
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TEST(GprSurveyAssembler, ThrowsWhenChannelCountMismatch) {
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auto d = (std::filesystem::temp_directory_path() / "gpr_asm_mismatch").string();
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std::filesystem::create_directories(d);
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writeText(d + "/A.iprh", HDR);
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writeI16(d + "/A.iprb", {10, 11, 12, 13});
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// .ord 含 2 个有效通道, 但只传 1 个 iprb 路径 -> 抛错。
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writeText(d + "/x.ord", "0 1.0 -1.5 1\n1 0.0 -1.5 1\n");
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EXPECT_THROW(assembleGprSurvey({d + "/A.iprb"}, d + "/x.ord"),
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std::runtime_error);
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std::filesystem::remove_all(d);
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}
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TEST(GprSurveyAssembler, AlignsTracesToMinimum) {
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auto d = (std::filesystem::temp_directory_path() / "gpr_asm_align").string();
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std::filesystem::create_directories(d);
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// 通道 A: traces=2 (lastTrace=1); 通道 B: traces=3 (lastTrace=2)。
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// ntraces 应对齐为 min=2。
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const char* HDR3 =
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"SAMPLES: 2\nLAST TRACE: 2\nCHANNELS: 2\nTIMEWINDOW: 4.0\n"
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"SOIL VELOCITY: 100.000000\nDISTANCE INTERVAL: 0.05\n";
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writeText(d + "/A.iprh", HDR);
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writeI16(d + "/A.iprb", {10, 11, 12, 13}); // 2 道
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writeText(d + "/B.iprh", HDR3);
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writeI16(d + "/B.iprb", {20, 21, 22, 23, 24, 25}); // 3 道
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writeText(d + "/x.ord", "0 0.0 -1.5 1\n1 1.0 -1.5 1\n"); // A->0.0, B->1.0
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auto s = assembleGprSurvey({d + "/A.iprb", d + "/B.iprb"}, d + "/x.ord");
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EXPECT_EQ(s.ntraces, 2);
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EXPECT_EQ(s.samples, 2);
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// A(Y=0.0)=通道0, B(Y=1.0)=通道1; B 的第3道(t=2)被对齐丢弃。
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EXPECT_NEAR(s.at(1, 1, 0), 22.0, 1e-9); // B 的 (t1,s0)
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std::filesystem::remove_all(d);
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}
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