Help with displaying images in a window

Ever since VAST V 3.0 (circa 1996 ish) we have had a framework on our website for download that shows how to display an image in a window and have it resize as the window resizes.

Recently, I have dragged this out to use for one of my Seaside websites - Local modellers make scale plastic models and I provide the website to show these. To help me add details of the models, I have a little utility that loops through the list of images in a file, lets me add a description and saves an object in my database that provides the hooks for the web site. 

I am finding that most of my JPEG images won't display using the standard JPG loader. The loader opens the file but the offers a nil return. I know nothing about the structure of a JPEG so cannot debug this. Can anyone help me with this problem.

One of the problem files is attached. Can anyone help me get this to display in VA?

Greetings David,

I just tried the following with 9.2 and 8.5.1 and it seemed to load up the file and answer a valid CgDeviceIndependentImage (4727x4548  depth-24)

CgJPEGFileFormat new loadFromFile: '032020006.jpg'.

It's possible there was a conversion done when you pasted it in google groups?  Maybe download the file you attached here and try it again with my snippet above

- Seth

On Friday, March 6, 2020 at 12:59:18 PM UTC-5, Totally Objects wrote:

Ever since VAST V 3.0 (circa 1996 ish) we have had a framework on our website for download that shows how to display an image in a window and have it resize as the window resizes.

Recently, I have dragged this out to use for one of my Seaside websites - Local modellers make scale plastic models and I provide the website to show these. To help me add details of the models, I have a little utility that loops through the list of images in a file, lets me add a description and saves an object in my database that provides the hooks for the web site. 

I am finding that most of my JPEG images won't display using the standard JPG loader. The loader opens the file but the offers a nil return. I know nothing about the structure of a JPEG so cannot debug this. Can anyone help me with this problem.

One of the problem files is attached. Can anyone help me get this to display in VA?

Greetings David,

I just tried the following with 9.2 and 8.5.1 and it seemed to load up the file and answer a valid CgDeviceIndependentImage (4727x4548  depth-24)

CgJPEGFileFormat new loadFromFile: '032020006.jpg'.

It's possible there was a conversion done when you pasted it in google groups?  Maybe download the file you attached here and try it again with my snippet above

- Seth

On Friday, March 6, 2020 at 12:59:18 PM UTC-5, Totally Objects wrote:

Ever since VAST V 3.0 (circa 1996 ish) we have had a framework on our website for download that shows how to display an image in a window and have it resize as the window resizes.

Recently, I have dragged this out to use for one of my Seaside websites - Local modellers make scale plastic models and I provide the website to show these. To help me add details of the models, I have a little utility that loops through the list of images in a file, lets me add a description and saves an object in my database that provides the hooks for the web site. 

I am finding that most of my JPEG images won't display using the standard JPG loader. The loader opens the file but the offers a nil return. I know nothing about the structure of a JPEG so cannot debug this. Can anyone help me with this problem.

One of the problem files is attached. Can anyone help me get this to display in VA?

I tried to upload a zip file but Google wouldn't let me so I have used a transfer web site. Can you download the following 

<a href="https://we.tl/t-iKhK93kWDo" target="_blank" rel="nofollow" onmousedown="this.href=&#39;https://www.google.com/url?q\x3dhttps%3A%2F%2Fwe.tl%2Ft-iKhK93kWDo\x26sa\x3dD\x26sntz\x3d1\x26usg\x3dAFQjCNHK9splrp3CjRka_wOrTLoUdx9aFw&#39;;return true;" onclick="this.href=&#39;https://www.google.com/url?q\x3dhttps%3A%2F%2Fwe.tl%2Ft-iKhK93kWDo\x26sa\x3dD\x26sntz\x3d1\x26usg\x3dAFQjCNHK9splrp3CjRka_wOrTLoUdx9aFw&#39;;return true;">https://we.tl/t-iKhK93kWDo

That is a zip file so it should be the same as the file that I am handling.

Thanks for your help Seth.

David

On Friday, March 6, 2020 at 6:22:16 PM UTC, Seth Berman wrote:

Greetings David,

I just tried the following with 9.2 and 8.5.1 and it seemed to load up the file and answer a valid CgDeviceIndependentImage (4727x4548  depth-24)

CgJPEGFileFormat new loadFromFile: '032020006.jpg'.

It's possible there was a conversion done when you pasted it in google groups?  Maybe download the file you attached here and try it again with my snippet above

- Seth

On Friday, March 6, 2020 at 12:59:18 PM UTC-5, Totally Objects wrote:

Ever since VAST V 3.0 (circa 1996 ish) we have had a framework on our website for download that shows how to display an image in a window and have it resize as the window resizes.

Recently, I have dragged this out to use for one of my Seaside websites - Local modellers make scale plastic models and I provide the website to show these. To help me add details of the models, I have a little utility that loops through the list of images in a file, lets me add a description and saves an object in my database that provides the hooks for the web site. 

I am finding that most of my JPEG images won't display using the standard JPG loader. The loader opens the file but the offers a nil return. I know nothing about the structure of a JPEG so cannot debug this. Can anyone help me with this problem.

One of the problem files is attached. Can anyone help me get this to display in VA?

Greetings David,

I just tried the following with 9.2 and 8.5.1 and it seemed to load up the file and answer a valid CgDeviceIndependentImage (4727x4548  depth-24)

CgJPEGFileFormat new loadFromFile: '032020006.jpg'.

It's possible there was a conversion done when you pasted it in google groups?  Maybe download the file you attached here and try it again with my snippet above

- Seth

On Friday, March 6, 2020 at 12:59:18 PM UTC-5, Totally Objects wrote:

Ever since VAST V 3.0 (circa 1996 ish) we have had a framework on our website for download that shows how to display an image in a window and have it resize as the window resizes.

Recently, I have dragged this out to use for one of my Seaside websites - Local modellers make scale plastic models and I provide the website to show these. To help me add details of the models, I have a little utility that loops through the list of images in a file, lets me add a description and saves an object in my database that provides the hooks for the web site. 

I am finding that most of my JPEG images won't display using the standard JPG loader. The loader opens the file but the offers a nil return. I know nothing about the structure of a JPEG so cannot debug this. Can anyone help me with this problem.

One of the problem files is attached. Can anyone help me get this to display in VA?

I have downloaded a program called IrFanView which as an option called JPG Lossless Operations. Using this, I now have a set of JPEGs that will load quite happily in 9.2.

Just as a small question - how come PNGs can do it but not JPEGS (which are more prevalent, I should think). 

However, as an aside, I am sure that I tried PNGs but that's for another day.

David

Totally Objects

On Friday, March 6, 2020 at 6:22:16 PM UTC, Seth Berman wrote:

Greetings David,

I just tried the following with 9.2 and 8.5.1 and it seemed to load up the file and answer a valid CgDeviceIndependentImage (4727x4548  depth-24)

CgJPEGFileFormat new loadFromFile: '032020006.jpg'.

It's possible there was a conversion done when you pasted it in google groups?  Maybe download the file you attached here and try it again with my snippet above

- Seth

On Friday, March 6, 2020 at 12:59:18 PM UTC-5, Totally Objects wrote:

Ever since VAST V 3.0 (circa 1996 ish) we have had a framework on our website for download that shows how to display an image in a window and have it resize as the window resizes.

Recently, I have dragged this out to use for one of my Seaside websites - Local modellers make scale plastic models and I provide the website to show these. To help me add details of the models, I have a little utility that loops through the list of images in a file, lets me add a description and saves an object in my database that provides the hooks for the web site. 

I am finding that most of my JPEG images won't display using the standard JPG loader. The loader opens the file but the offers a nil return. I know nothing about the structure of a JPEG so cannot debug this. Can anyone help me with this problem.

One of the problem files is attached. Can anyone help me get this to display in VA?

Hi David,

Both PNG and JPEG are used quite extensively for their various advantages/disadvantages such as lossy vs lossless compression or overall size.

I think each one is more prevalent in certain domains.

In any case, many enhancements we do sort of organically appear with opportunity.  In this case, we were already speeding up PNG by 20x as a precursor for changing our stock icons for the product.  We took a quick look and decided interlaced frame support was easy enough to implement and could make it into our busy schedules.

If we hear of enough customer demand for progressive jpeg (I see nothing in our historical database...so if they do care, they are not telling us about it) or we see similar opportunities like the one above...I can easily imagine it would be implemented.

- Seth

On Saturday, March 7, 2020 at 2:40:58 PM UTC-5, Totally Objects wrote:

I have downloaded a program called IrFanView which as an option called JPG Lossless Operations. Using this, I now have a set of JPEGs that will load quite happily in 9.2.

Just as a small question - how come PNGs can do it but not JPEGS (which are more prevalent, I should think). 

However, as an aside, I am sure that I tried PNGs but that's for another day.

David

Totally Objects

On Friday, March 6, 2020 at 6:22:16 PM UTC, Seth Berman wrote:

Greetings David,

I just tried the following with 9.2 and 8.5.1 and it seemed to load up the file and answer a valid CgDeviceIndependentImage (4727x4548  depth-24)

CgJPEGFileFormat new loadFromFile: '032020006.jpg'.

It's possible there was a conversion done when you pasted it in google groups?  Maybe download the file you attached here and try it again with my snippet above

- Seth

On Friday, March 6, 2020 at 12:59:18 PM UTC-5, Totally Objects wrote:

Ever since VAST V 3.0 (circa 1996 ish) we have had a framework on our website for download that shows how to display an image in a window and have it resize as the window resizes.

Recently, I have dragged this out to use for one of my Seaside websites - Local modellers make scale plastic models and I provide the website to show these. To help me add details of the models, I have a little utility that loops through the list of images in a file, lets me add a description and saves an object in my database that provides the hooks for the web site. 

I am finding that most of my JPEG images won't display using the standard JPG loader. The loader opens the file but the offers a nil return. I know nothing about the structure of a JPEG so cannot debug this. Can anyone help me with this problem.

One of the problem files is attached. Can anyone help me get this to display in VA?