V tomto tématu prozkoumáme, jak převést EPS na TIFF pomocí C++. Budete sledovat, jak načíst vstupní soubor EPS a převést jej na obrázek v C++ pomocí jednoduchých volání API.
Kroky pro převod EPS na TIFF pomocí C++
- Nainstalujte Aspose.Page for C++ z nástroje Správce balíčků NuGet
- Přidejte odkaz na jmenný prostor Aspose::Page
- Zadejte výstupní ImageFormat a inicializujte vstupní proud
- Načtěte vstupní soubor EPS pomocí objektu třídy PsDocument
- Nastavte vlastnosti ImageSaveOptions a uložte výstupní soubor TIFF
Můžete exportovat EPS do TIFF pomocí C++ pomocí jednoduchých volání API s několika řádky kódu. Stačí načíst vstupní soubor EPS a nastavit různé vlastnosti podle vašich požadavků a poté soubor převést pomocí PsDocument class pomocí C++.
Kód pro převod EPS na TIFF pomocí C++
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| #pragma once | |
| #include <stdio.h> | |
| #include <tchar.h> | |
| #include <cstdint> | |
| #include <Aspose.Page.Cpp/eps/src_eps/PsDocument.h> | |
| #include <Aspose.Page.Cpp/eps/src_eps/PsConverterException.h> | |
| #include <Aspose.Page.Cpp/eps/src_eps/Device/ImageSaveOptions.h> | |
| #include <Aspose.Page.Cpp/eps/src_eps/Device/ImageDevice.h> | |
| #include <Aspose.Page.Cpp/eps/src_eps/Device/PdfDevice.h> | |
| #include <Aspose.Page.Cpp/eps/src_eps/Device/PdfSaveOptions.h> | |
| #include <Aspose.Page.Cpp/License.h> | |
| #include "system/enum.h" | |
| #include "system/object.h" | |
| #include "system/scope_guard.h" | |
| #include "system/special_casts.h" | |
| #include "system/type_info.h" | |
| #include "system/details/dispose_guard.h" | |
| #include "system/io/directory.h" | |
| #include "system/io/directory_info.h" | |
| #include "system/io/file.h" | |
| #include "system/io/file_mode.h" | |
| #include "system/io/memory_stream.h" | |
| #include "system/io/stream.h" | |
| #include "system/io/stream_reader.h" | |
| #include "system/io/seekorigin.h" | |
| #include "system/reflection/assembly.h" | |
| #include "system/text/unicode_encoding.h" | |
| #include "drawing/rectangle.h" | |
| #include "drawing/bitmap.h" | |
| #include "drawing/graphics.h" | |
| #include <system/object.h> | |
| #include <system/array.h> | |
| #include <system/string.h> | |
| #include <system/int32.h> | |
| #include <system/shared_ptr.h> | |
| #include <system/object_ext.h> | |
| #include <system/exceptions.h> | |
| #include <system/environment.h> | |
| #include <system/diagnostics/trace.h> | |
| #include <system/console.h> | |
| using namespace Aspose::Page; | |
| using namespace Aspose::Page::EPS; | |
| using namespace Aspose::Page::EPS::Device; | |
| using namespace System; | |
| class EpsToTiffConverter { | |
| public: | |
| static void ConvertEPStoTIFF() | |
| { | |
| // Set the license for Aspose.Page for CPP to Convert EPS File | |
| SharedPtr<License> EPStoTIFFlicense = System::MakeObject<License>(); | |
| EPStoTIFFlicense->SetLicense(u"Aspose.Total.NET.lic"); | |
| // Specify the output TIFF image format | |
| System::SharedPtr<System::Drawing::Imaging::ImageFormat> imageFormat = System::Drawing::Imaging::ImageFormat::get_Tiff(); | |
| // Initialize PostScript input stream | |
| System::SharedPtr<System::IO::FileStream> psStream = System::MakeObject<System::IO::FileStream> | |
| (u"Input.eps", System::IO::FileMode::Open, System::IO::FileAccess::Read); | |
| System::SharedPtr<PsDocument> document = System::MakeObject<PsDocument>(psStream); | |
| // Set this flag if you want to convert EPS file ignoring minor errors | |
| bool suppressErrors = true; | |
| //Initialize ImageSaveOptions object with required parameters. | |
| System::SharedPtr<ImageSaveOptions> options = System::MakeObject<ImageSaveOptions>(suppressErrors); | |
| System::SharedPtr<ImageDevice> device = System::MakeObject<ImageDevice>(imageFormat); | |
| { | |
| auto __finally_guard_0 = ::System::MakeScopeGuard([&psStream]() | |
| { | |
| psStream->Close(); | |
| }); | |
| try | |
| { | |
| document->Save(device, options); | |
| } | |
| catch (...) | |
| { | |
| throw; | |
| } | |
| } | |
| System::ArrayPtr<System::ArrayPtr<uint8_t>> imagesBytes = device->get_ImagesBytes(); | |
| int32_t i = 0; | |
| { | |
| for (System::ArrayPtr<uint8_t> imageBytes : imagesBytes) | |
| { | |
| System::String imagePath = System::IO::Path::GetFullPath(System::String(u"out_image") + System::Convert::ToString(i) | |
| + u"." + System::ObjectExt::ToString(imageFormat).ToLower()); | |
| { | |
| System::SharedPtr<System::IO::FileStream> fs = System::MakeObject<System::IO::FileStream>(imagePath, | |
| System::IO::FileMode::Create, System::IO::FileAccess::Write); | |
| System::Details::DisposeGuard<1> __dispose_guard_1({ fs }); | |
| // ------------------------------------------ | |
| try | |
| { | |
| fs->Write(imageBytes, 0, imageBytes->get_Length()); | |
| } | |
| catch (...) | |
| { | |
| __dispose_guard_1.SetCurrentException(std::current_exception()); | |
| } | |
| } | |
| i++; | |
| } | |
| } | |
| } | |
| }; |
Dříve jsme prozkoumali jak extrahovat metadata souboru Microsoft Project pomocí C++. V tomto tématu jsme však implementovali, jak generovat TIFF z EPS pomocí C++.
