Image Orientation

Orientation parameters allow you to rotate and flip an image on screen without changing the image bitmap.

Choose Display > Layout > Orientation. Displayed image orientation can be specified by 2 parameters:
- Where the image's top side is located (relative screen orientation).
- Where the image's left side is located.

Normal image orientation is top on top and left on left (i.e., image top on screen top, and image left on screen left), which can be specified with the IG_DSPL_ORIENT_TOP_LEFT constant.

IG_DSPL_ORIENT_RIGHT_TOP (i.e., top on right and left on top) constant effectively rotates the image by 90 degrees clockwise. This can be done with the following code fragment:

	Copy Code
- (IBAction)mnuDisplayOrientRIGHT_TOP:(id)sender { if(IG_image_is_valid(hIGear)) { // Set display orientation to IG_DSPL_ORIENT_RIGHT_TOP IG_dspl_orientation_set( hIGear, 0, IG_DSPL_ORIENT_RIGHT_TOP); // Update main view [mainScrollViewOutlet setNeedsDisplay:YES]; } }

The sample below demonstrates the image oriented to right-and-top (IG_DSPL_ORIENT_RIGHT_TOP):

See Also