ImageEn for Delphi and C++ Builder ImageEn for Delphi and C++ Builder

 

ImageEn Forum
Profile    Join    Active Topics    Forum FAQ    Search this forumSearch
Forum membership is Free!  Click Join to sign-up
Username:
Password:
Save Password
Forgot your Password?

 All Forums
 ImageEn Library for Delphi, C++ and .Net
 ImageEn and IEvolution Support Forum
 TImageENView with the big sized background
 New Topic  Reply to Topic
Author Previous Topic Topic Next Topic  

kowal

Poland
33 Posts

Posted - Sep 08 2023 :  07:37:58  Show Profile  Reply
Hello
I try to use then TImageEnView component to create a big map with some ImageLayers added to the background.
The bacgkround layer is from bmp file 9449 x 3509 pixels size with 32 bits pixel.
When I load this layer in the "standalone" form without additonal layers procedures then zoom, scroll operations are very fast.
But when I have this layer in the with TImageLayers, TextLayers, PolyLineLayers converted to ImageLayer all is very slow.
Can you suggest what shall I change or avoid to fix this problem?

Another question for me is how to remember the positon of the ImageEnView scrollbars when I finish/start/update the window. Now I always lose the position of the edited added layer - the window positons on the left top of the ImageView in the left top of my window.

kindly regards Stan

xequte

38296 Posts

Posted - Sep 10 2023 :  20:56:19  Show Profile  Reply
Hi Stan

Please see the list of Layer Performance properties and the examples at:

http://www.imageen.com/help/TImageEnView.LayersFastDrawing.html

Does that provide any improvement?


The scroll position should not reset when performing an update. Can you give me more information?

Nigel
Xequte Software
www.imageen.com
Go to Top of Page
  Previous Topic Topic Next Topic  
 New Topic  Reply to Topic
Jump To: