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Better handling of FITS loading error

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This commit is contained in:
Dušan Poizl
2025-02-28 10:42:39 +01:00
parent d59ee7fddc
commit 617abf7afe
4 changed files with 35 additions and 17 deletions
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loadimage.cpp
+23 -15
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@@ -86,19 +86,31 @@ bool loadFITS(const QString path, ImageInfoData &info, std::shared_ptr<RawImage>
fitsfile *file;
int status = 0;
int type = -1;
fits_open_diskfile(&file, path.toLocal8Bit().data(), READONLY, &status);
int num = 0;
long naxes[3] = {0};
auto checkError = [&info, &status]()
{
char err[100];
fits_get_errstatus(status, err);
info.info.append({QObject::tr("Error"), QString(err)});
qDebug() << "Failed to load FITS file" << err;
return false;
};
fits_open_diskfile(&file, path.toLocal8Bit().data(), READONLY, &status);
if(status)return checkError();
fits_get_num_hdus(file, &num, &status);
if(status)return checkError();
int imgtype;
int naxis;
long naxes[3] = {0};
for(int i=1; i <= num; i++)
{
fits_movabs_hdu(file, i, IMAGE_HDU, &status);
fits_get_hdu_type(file, &type, &status);
fits_get_img_param(file, 3, &imgtype, &naxis, naxes, &status);
fits_get_img_equivtype(file, &imgtype, &status);
fits_movabs_hdu(file, i, IMAGE_HDU, &status);if(status)return checkError();
fits_get_hdu_type(file, &type, &status);if(status)return checkError();
fits_get_img_param(file, 3, &imgtype, &naxis, naxes, &status);if(status)return checkError();
fits_get_img_equivtype(file, &imgtype, &status);if(status)return checkError();
if(type == IMAGE_HDU && naxis >= 2 && naxis <= 3 && status == 0)
{
@@ -150,6 +162,7 @@ bool loadFITS(const QString path, ImageInfoData &info, std::shared_ptr<RawImage>
{
fpixel[2] = i;
fits_read_pix(file, fitstype, fpixel, size, NULL, data + img.size() * RawImage::typeSize(type) * (i-1), NULL, &status);
if(status)return checkError();
}
if(fitstype == TSHORT)
{
@@ -169,7 +182,10 @@ bool loadFITS(const QString path, ImageInfoData &info, std::shared_ptr<RawImage>
}
noload:
if(file)
loadFITSHeader(file, info);
{
status = loadFITSHeader(file, info);
if(status)return checkError();
}
if(image)
{
@@ -181,14 +197,6 @@ noload:
}
fits_close_file(file, &status);
if(status)
{
char err[100];
fits_get_errstatus(status, err);
info.info.append({QObject::tr("Error"), QString(err)});
qDebug() << "Failed to load FITS file" << err;
}
return true;
}