U++ forum: Welcome to the forum

Search on this site

Search in forums

Home » U++ Library support » U++ Core » GLCtrl switch between perspective and ortho mode

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

GLCtrl switch between perspective and ortho mode [message #60090]

Tue, 15 August 2023 19:07

deep
Messages: 263
Registered: July 2011
Location: Bangalore

Experienced Member

Hi,

I am experimenting with GLCanvas_demo.

Using Stanford_Bunny_sample.stl as sample.

ZoomToFit() "Fit to data" will not zoom to full display window. It remains roughly 25% center area.

Default projection mode is Perspective - Camera. I want to know how to switch between Orthographic and Camera - Perspective display modes.

Warm Regards

Deepak

Report message to a moderator

Re: GLCtrl switch between perspective and ortho mode [message #60091 is a reply to message #60090]

Wed, 16 August 2023 23:36

koldo
Messages: 3358
Registered: August 2008

Senior Veteran

Hi Deep

GLCanvas ZoomToFit depends on object size and control size, trying to match both for the object to be totally visible, having the object in the middle of the control. This means that if the object aspect ratio doesn't match with the control one, the zoom is less perfect.

About the other modes that you indicate, they are not implemented.

This control is halfway to the control I wanted, rendering not only mesh but surfaces, and having not only zoom, but scroll, like UltimateOpenGL got. Unfortunately I haven't had time to support the author of this interesting control.

Best regards
Iñaki

Report message to a moderator

Re: GLCtrl switch between perspective and ortho mode [message #60092 is a reply to message #60091]

Thu, 17 August 2023 07:47

deep
Messages: 263
Registered: July 2011
Location: Bangalore

Experienced Member

Hi Iñaki

Thank you for your response.

Will check SurfaceCtrl package.
It has Ortho/Perspective switching.

I need to understand Zoom mechanism.

Warm Regards

Deepak

Report message to a moderator

Previous Topic:	FormatE() with 0.0
Next Topic:	XmlParser encoding detection bugfix.

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Mon Apr 29 01:46:55 CEST 2024

Total time taken to generate the page: 5.92395 seconds