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    發布日期: 2023-07-14
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資源簡介

基于對話框格式,試驗運行能打開500M.TIF圖像,.TIFF色調比較白,不怎么清楚,有待改善,需要安裝GDAL,只要把VS2010(本人所用),工程名右鍵屬性打開,將其包含目錄,和庫目錄分別換成你安裝的gdal文件中的include和bin路徑,最后再在鏈接器的輸入欄第一個選項鍵入:gdal_i.lib,運行即可

資源截圖

代碼片段和文件信息

#include?“cximagedlg.h“
#include?
#include?
#include?

#include?“gdal_priv.h“

CXImageDlg::CXImageDlg(QWidget?*parent?Qt::WFlags?flags)
:?QDialog(parent?flags)
{
ui.setupUi(this);//setupUi(this);

Qobject::connect(ui.buttonBox?SIGNAL(clicked())?this?SLOT(OnOK()));
Qobject::connect(ui.buttonBox2?SIGNAL(clicked())?this?SLOT(close()));
Qobject::connect(ui.pushButtonInput?SIGNAL(clicked())?this?SLOT(LoadInputRaster()));
Qobject::connect(ui.pushButtonApply?SIGNAL(clicked())?this?SLOT(soltApply()));

ui.labelView->clear();
m_pDataset?=?NULL;
}

CXImageDlg::~CXImageDlg()
{
if(m_pDataset?!=?NULL)
{
GDALClose((GDALDatasetH)?m_pDataset);
m_pDataset?=?NULL;
}
}

bool?CXImageDlg::ShowRasterFile()
{
GDALAllRegister();
m_pDataset?=?(GDALDataset*)GDALOpen(m_strInputRaster.c_str()?GA_ReadOnly);
if?(m_pDataset?==?NULL)
{
QMessageBox::information(thistr(“提示“)?tr(“指定的文件不能打開!“));
return?false;
}

//設置投影坐標范圍
int dataWidth?=?m_pDataset->GetRasterXSize();
int?dataHeight?=?m_pDataset->GetRasterYSize();

double?padfTransform[6]?=?{0.0};
m_pDataset->GetGeoTransform(padfTransform);

//設置行列號范圍
ui.spinStartCol->setRange(0?dataWidth-1);
ui.spinStartRow->setRange(0?dataHeight-1);
ui.spinEndCol->setRange(0?dataWidth-1);
ui.spinEndRow->setRange(0?dataHeight-1);

ui.spinStartCol->setValue(0);
ui.spinStartRow->setValue(0);
ui.spinEndCol->setValue(dataWidth-1);
ui.spinEndRow->setValue(dataHeight-1);

ShowRaster();
//return?0;
}

void?CXImageDlg::LoadInputRaster()
{
QFileDialog::Options?options;
QString?selectedFilter;
QString?fileName?=?QFileDialog::getOpenFileName(this
tr(“打開原始圖像“)
“.“
tr(“所有文件(*.*);;Erdas?Image?(*.img);;PCIDSK?(*.pix);;GTiff?(*.tif?*.tiff);;ENVI?(*.*)“)
&selectedFilter
options);

if?(!fileName.isEmpty())
{
if(m_pDataset?!=?NULL)
{
GDALClose((GDALDatasetH)?m_pDataset);
m_pDataset?=?NULL;
}

ui.lineInput->setText(fileName);
m_strInputRaster?=?QFile::encodeName(?fileName?).constData();

if(!ShowRasterFile())
{
ui.lineInput->setText(““);
m_strInputRaster?=?““;
}
}
}

void?CXImageDlg::ShowRaster()
{
int?iStartCol?=?ui.spinStartCol->value();
int?iStartRow?=?ui.spinStartRow->value();

int?dataWidth?=?ui.spinEndCol->value()?-?iStartCol;
int?dataHeight?=?ui.spinEndRow->value()?-?iStartRow;
int dataBands?=??m_pDataset->GetRasterCount();

int band_list[3]?=?{123};

m_dScale?=?dataHeight?>?dataWidth???dataHeight?:?dataWidth;
int?iViewHeight?=?541;
m_dScale?=?iViewHeight/m_dScale;

int?iSize?=?GDALGetDataTypeSize(GDT_Byte)?/?8;
int?iScaleWidth?=?static_cast(dataWidth*m_dScale+0.5);
int?iScaleHeight?=?static_cast(dataHeight*m_dScale+0.5);

iScaleWidth?=?(iScaleWidth*8+31)/32*4;

unsigned?char*?pBuffer?=?new?unsigned?char[iScaleWidth*iScaleHeight*dataBands];
CPLErr?err?=?m_pDataset->RasterIO(GF

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????3794??2014-03-05?18:36??CXImageDlg\CXImageDlg\cximagedlg.cpp

?????文件????????916??2014-03-02?21:39??CXImageDlg\CXImageDlg\cximagedlg.h

?????文件?????????70??2014-03-02?21:11??CXImageDlg\CXImageDlg\cximagedlg.qrc

?????文件???????4382??2014-03-05?18:32??CXImageDlg\CXImageDlg\cximagedlg.ui

?????文件??????10977??2014-03-02?21:43??CXImageDlg\CXImageDlg\CXImageDlg.vcxproj

?????文件???????2699??2014-03-02?21:11??CXImageDlg\CXImageDlg\CXImageDlg.vcxproj.filters

?????文件????????575??2014-03-02?21:39??CXImageDlg\CXImageDlg\CXImageDlg.vcxproj.user

?????文件???????3994??2014-03-05?18:36??CXImageDlg\CXImageDlg\Debug\cl.command.1.tlog

?????文件??????94702??2014-03-05?18:36??CXImageDlg\CXImageDlg\Debug\CL.read.1.tlog

?????文件???????1890??2014-03-05?18:36??CXImageDlg\CXImageDlg\Debug\CL.write.1.tlog

?????文件???????1552??2014-03-05?18:32??CXImageDlg\CXImageDlg\Debug\custombuild.command.1.tlog

?????文件????????420??2014-03-05?18:32??CXImageDlg\CXImageDlg\Debug\custombuild.read.1.tlog

?????文件????????758??2014-03-05?18:32??CXImageDlg\CXImageDlg\Debug\custombuild.write.1.tlog

?????文件????????608??2014-03-02?21:43??CXImageDlg\CXImageDlg\Debug\CXImageDlg.Build.CppClean.log

?????文件????????381??2014-03-05?18:36??CXImageDlg\CXImageDlg\Debug\CXImageDlg.exe.intermediate.manifest

?????文件?????????53??2014-03-05?18:36??CXImageDlg\CXImageDlg\Debug\CXImageDlg.lastbuildstate

?????文件???????2752??2014-03-05?18:36??CXImageDlg\CXImageDlg\Debug\CXImageDlg.log

?????文件?????688806??2014-03-05?18:36??CXImageDlg\CXImageDlg\Debug\cximagedlg.obj

?????文件???????1370??2014-03-05?18:36??CXImageDlg\CXImageDlg\Debug\CXImageDlg.write.1.tlog

?????文件???????1886??2014-03-05?18:36??CXImageDlg\CXImageDlg\Debug\link.command.1.tlog

?????文件???????3426??2014-03-05?18:36??CXImageDlg\CXImageDlg\Debug\link.read.1.tlog

?????文件????????960??2014-03-05?18:36??CXImageDlg\CXImageDlg\Debug\link.write.1.tlog

?????文件??????89756??2014-03-05?18:32??CXImageDlg\CXImageDlg\Debug\main.obj

?????文件??????68717??2014-03-05?18:32??CXImageDlg\CXImageDlg\Debug\moc_cximagedlg.obj

?????文件????????458??2014-03-05?18:36??CXImageDlg\CXImageDlg\Debug\mt.command.1.tlog

?????文件????????734??2014-03-05?18:36??CXImageDlg\CXImageDlg\Debug\mt.read.1.tlog

?????文件????????274??2014-03-05?18:36??CXImageDlg\CXImageDlg\Debug\mt.write.1.tlog

?????文件??????16025??2014-03-02?21:57??CXImageDlg\CXImageDlg\Debug\qrc_cximagedlg.obj

?????文件????1159168??2014-03-05?18:36??CXImageDlg\CXImageDlg\Debug\vc100.pdb

?????文件???????3070??2014-03-02?21:43??CXImageDlg\CXImageDlg\GeneratedFiles\Debug\moc_cximagedlg.cpp

............此處省略27個文件信息

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