SCNScene rendering question
Hi all, hope it’s the right place to post the question. I have a figure of a penguin in a .dae file exported from blender which has armature and bones. It all works except that the figure is shown straggled in the middle of the body, where is the origin of the root bone Is there a way to manipulate the data in order to have a normal figure? (Hope it’s clear...) Thanks to all in advance, regards, livio ps: nodes scheme: Tux_Armature right flipper forearm hand left flipper forearm hand body right leg foot left leg foot head bill pupil pupil eyes Tux geometry... skinner = Tux_Armature ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Swift - Basic query regarding managedObjectContext method invocation from app delegate
I am trying to implement reset functionality in core data based sample app.
I think that there are two ways to implement reset functionality:
Approach 1: Delete sqlite file and then re-insert data
Approach 2: Retrieve all data in managedObjectContext, delete
retrieved data and then re-insert data
I tried 'Approach 1' first, here is the code snippet:
@IBAction func resetData(sender: AnyObject) {
let appDelegate = UIApplication.sharedApplication().delegate
as AppDelegate
// delete old db if it exists
var url =
appDelegate.applicationDocumentsDirectory.URLByAppendingPathComponent(MyApp.sqlite)
let defaultFileManager = NSFileManager.defaultManager()
if defaultFileManager.fileExistsAtPath(url.path!) {
defaultFileManager.removeItemAtURL(url, error: nil)
}
let managedObjectContext = appDelegate.managedObjectContext!
var menuCategory : MenuCategories =
NSEntityDescription.insertNewObjectForEntityForName(MenuCategories,
inManagedObjectContext: managedObjectContext) as MenuCategories
appDelegate.saveContext()
}
Then I added a break point in appDelegate's managedObjectContext lazy
initialization method, here is the related code snippet:
lazy var managedObjectContext: NSManagedObjectContext? = {
let coordinator = self.persistentStoreCoordinator
if coordinator == nil {
return nil
}
var managedObjectContext = NSManagedObjectContext()
managedObjectContext.persistentStoreCoordinator = coordinator
return managedObjectContext
}()
First time when I performed reset action, the program counter (PC)
stopped on the added break point, but next time when I performed reset
action then the PC did not stop on the break point and app crashed for
obvious reasons:
Error Domain=NSCocoaErrorDomain Code=4 The operation couldn’t be
completed. (Cocoa error 4.) UserInfo=0x78f54ff0
{NSUnderlyingError=0x78f69250 The operation couldn’t be completed. No
such file or directory
Now my question is -
Why second time managedObjectContext initialization method was not invoked?
I know that I need to go back and learn Swift basics - the hard way,
perhaps there is some obvious reasons which I am missing, please
suggest.
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Re: Table of TextViews
Can I ask you folks to look over and comment on this code? I think I’ve set up
the text view and text container correctly to track the size of the text they
contain, and I can notify my table view delegate when their size changes. The
problem I’m having is that the table view delegate can note and log the size
change and everything works well--as long as I don’t really do anything with
the information. But if the table view delegate notifies the table that the
corresponding row size changed, everything goes crazy.
I’m going to take this step by step. Would you comment on my NSTextView
subclass and tell me if something is wrong in the way I’ve set it up to size
itself, notify itself, or pass along size-change notifications?
The code below is from three separate source files, but I’m sure you can tell
which is which.
@protocol SizeWatcher NSObject
// Notify of actual size change, along with variables to
// answer the most common questions receiver will want to
// ask:
//Did width grow? Shrink? Remain the same?
//Did height grow? Shrink? Remain the same?
//What is the view's new frame/bounds?
-(void)sizeChangedForView:(NSView*)view
widthChange:(CGFloat)wc
heightChange:(CGFloat)hc;
@end
#import SizeWatcher.h
@interface CJAutosizingTextView : NSTextView
-(void)addSizeWatcher:(id)obj;
-(void)removeSizeWatcher:(id)obj;
-(void)removeAllSizeWatchers;
-(void)setLayoutManager:(NSLayoutManager*)lm;
@end
#import CJAutosizingTextView.h
@interface CJAutosizingTextView ()
@property NSRect oldFrame;
@property NSMutableArray* sizeWatchers;
@end
@implementation CJAutosizingTextView
@synthesize oldFrame;
@synthesize sizeWatchers;
-(instancetype)initWithFrame:(NSRect)frameRect
andLayoutManager:(NSLayoutManager*)lm
{
self = [super initWithFrame:frameRect];
if ( self != nil ) {
sizeWatchers = nil;
oldFrame = frameRect;
NSTextContainer* tc = [[NSTextContainer alloc] init];
self.textContainer = tc;
NSNotificationCenter* nc = [NSNotificationCenter defaultCenter];
[nc addObserver:self
selector:@selector(frameChanged:)
name:NSViewFrameDidChangeNotification
object:self];
self.layoutManager = lm;
// Make text container and text view automatically
// size themselves vertically to fit the text
tc.widthTracksTextView = YES;
tc.heightTracksTextView = NO;
self.horizontallyResizable = NO;
self.verticallyResizable = YES;
// Allow superview to resize text view's width
self.autoresizingMask = NSViewWidthSizable;
}
return self;
}
-(instancetype)initWithFrame:(NSRect)frameRect
{
return [self initWithFrame:frameRect andLayoutManager:nil];
}
-(void)dealloc
{
NSNotificationCenter* nc = [NSNotificationCenter defaultCenter];
[nc removeObserver:self
name:NSViewFrameDidChangeNotification
object:self];
}
// NSTextView already has a layoutManager: selector to read the
// text container's layout manager. Here we add a convenient
// setter companion
-(void)setLayoutManager:(NSLayoutManager*)lm
{
self.textContainer.layoutManager = lm;
}
// Maintain the array of size watchers
-(void)addSizeWatcher:(id)obj
{
if ( [obj conformsToProtocol:@protocol(SizeWatcher)] ) {
if ( sizeWatchers == nil ) {
sizeWatchers = [[NSMutableArray alloc] initWithCapacity:1];
}
[self.sizeWatchers addObject:obj];
}
}
-(void)removeSizeWatcher:(id)obj
{
if ( sizeWatchers != nil ) {
[sizeWatchers removeObject:obj];
}
}
-(void)removeAllSizeWatchers
{
if ( sizeWatchers != nil ) {
[sizeWatchers removeAllObjects];
}
}
// When I'm notified that my frame changes, see if the new frame's
// size change and, if so, notify all size watchers
-(void)frameChanged:(NSNotification*)note
{
// Begin with test that's probably unnecessary, but just to be sure...
if ( [note object] == self ) {
NSRect newFrame = self.frame;
CGFloat wd = newFrame.size.width - oldFrame.size.width;
CGFloat hd = newFrame.size.width - oldFrame.size.width;
oldFrame = newFrame;
if ( wd != 0.0 || hd != 0.0 ) {
// Notify watchers of actual size change
for ( NSObjectSizeWatcher* obj in sizeWatchers ) {
[obj sizeChangedForView:self widthChange:wd heightChange:hd];
}
}
}
}
@end
--
Charles
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Re: Table of TextViews
Oops. When I pulled out this example code from the rest of my project, I mistyped something. Here is a corrected line: CGFloat hd = newFrame.size.height - oldFrame.size.height; -- Charles On Tuesday, October 14, 2014 at 8:49, Charles Jenkins wrote: Can I ask you folks to look over and comment on this code? -- Charles ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Swift - Basic query regarding managedObjectContext method invocation from app delegate
On 2014 Oct 14, at 05:42, Devarshi Kulshreshtha devarshi.bluec...@gmail.com wrote: I am trying to implement reset functionality in core data based sample app. I think that there are two ways to implement reset functionality: Approach 1: Delete sqlite file and then re-insert data As you’ve seen, this is tricky to do without relying on some Apple-impleentation-dependent behaviors. Approach 2: Retrieve all data in managedObjectContext, delete retrieved data and then re-insert data Performance may be unacceptable, and people will disrespect your code :) * * * How about a third approach: perform a managed object context reset(), followed by a save(). Does that work? Finally, if you’re in the modern world of Yosemite or iOS8, maybe some of the new direct database access methods will do what you want. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Custom NSView for Selection Rect...
I am using a custom NSView as a selection rect. I also have a NSScrollView with a custom NSClipView and a document view. Should I make the selection rect (custom view) a subview of the document view or the clip view? What is best practice for this? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Custom NSView for Selection Rect...
On 15 Oct 2014, at 8:21 am, Peters, Brandon bap...@my.fsu.edu wrote: I am using a custom NSView as a selection rect. I also have a NSScrollView with a custom NSClipView and a document view. Should I make the selection rect (custom view) a subview of the document view or the clip view? What is best practice for this? If you are determined to do it this way, it should be a subview of your content (document). But I don't think you should do it this way. Since you already have a custom view containing your content, why not just give it a selection rect property that you use to draw the selection after (i.e. on top of) all the other content? Chances are it'll be much simpler to figure out what objects the selection rect is touching or enclosing, and driving it using the mouse, etc. With a separate view, you'll likely end up with a much more complicated way to determine these things. K.I.S.S. Also, what's the reason for the custom clip view? --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Custom NSView for Selection Rect...
Graham, I will look into your suggestion. Also, I want the ability to draw the selection box “outside” of the image, similar to what the Preview application allows. On Oct 14, 2014, at 8:02 PM, Graham Cox graham@bigpond.com wrote: On 15 Oct 2014, at 8:21 am, Peters, Brandon bap...@my.fsu.edu wrote: I am using a custom NSView as a selection rect. I also have a NSScrollView with a custom NSClipView and a document view. Should I make the selection rect (custom view) a subview of the document view or the clip view? What is best practice for this? If you are determined to do it this way, it should be a subview of your content (document). But I don't think you should do it this way. Since you already have a custom view containing your content, why not just give it a selection rect property that you use to draw the selection after (i.e. on top of) all the other content? Chances are it'll be much simpler to figure out what objects the selection rect is touching or enclosing, and driving it using the mouse, etc. With a separate view, you'll likely end up with a much more complicated way to determine these things. K.I.S.S. Also, what's the reason for the custom clip view? --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Setting the Selected Segment of a Segmented Control
I have a simple problem. I am programmatically setting the selected segment of a segmented control. Then the segmented control is changing which segment appears selected on screen. You might be saying to yourself, this seems correct. You would also be correct. What is incorrect is that while the control *appears* to have changed, my code knows nothing of this. I have an action added for the control event UIControlEventValueChanged which is called as expected when you tap the control. HOWEVER, when changing the control programmatically, no such event is generated. This leaves my app in an inconsistent state. For reference, see this example project https://github.com/danblakemore/SegmentedNope. This worked in iOS 7. It now does not. What has changed? -- Daniel Blakemore Pixio Software ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Custom NSView for Selection Rect...
On 15 Oct 2014, at 11:42 am, Peters, Brandon bap...@my.fsu.edu wrote: Graham, I will look into your suggestion. Also, I want the ability to draw the selection box “outside” of the image, similar to what the Preview application allows. I think there probably isn't one best way to do this, it depends on your other requirements, and how you've implemented them. Your content view might include both its content and parts of the background that surround it, or you might have different views that create this situation. Your content might be zoomable and you don't want the selection to zoom with it, or you do; in different cases different solutions will be easiest. A separate view that overlays the selection rect might well be a good solution in some cases, or maybe a transparent overlay view that covers your entire document but only draws the selection rect somewhere inside that. Each approach has its merits and drawbacks. --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Setting the Selected Segment of a Segmented Control
Not sure about iOS but on OS X programmatically calling [NSSegmentedControl setSelectedSegment:] does not trigger the target / action message. You need to programmatically respond after setting the selected segment. Richard Charles On Oct 14, 2014, at 6:55 PM, Daniel Blakemore dblakem...@pixio.com wrote: I have a simple problem. I am programmatically setting the selected segment of a segmented control. Then the segmented control is changing which segment appears selected on screen. You might be saying to yourself, this seems correct. You would also be correct. What is incorrect is that while the control *appears* to have changed, my code knows nothing of this. I have an action added for the control event UIControlEventValueChanged which is called as expected when you tap the control. HOWEVER, when changing the control programmatically, no such event is generated. This leaves my app in an inconsistent state. For reference, see this example project https://github.com/danblakemore/SegmentedNope. This worked in iOS 7. It now does not. What has changed? -- Daniel Blakemore Pixio Software ___ ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
NSTableColumn identifier - can't be set in latest IB?
Hi all, I've recently updated to Xcode 6 (6.0.1 to be exact) and I'm trying to set up a NSTableView. There appears to be no place to set the identifier property of NSTableColumn in the latest version of IB. There is a restoration ID but that doesn't seem to be the same thing. Am I missing something? --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Swift - Basic query regarding managedObjectContext method invocation from app delegate
I know about NSBatchUpdateRequest and NSAsynchronousFetchRequest, is there any other fun part in modern world which can help me in my requirement, excited to know ;) On Wed, Oct 15, 2014 at 1:13 AM, Jerry Krinock je...@ieee.org wrote: On 2014 Oct 14, at 05:42, Devarshi Kulshreshtha devarshi.bluec...@gmail.com wrote: I am trying to implement reset functionality in core data based sample app. I think that there are two ways to implement reset functionality: Approach 1: Delete sqlite file and then re-insert data As you’ve seen, this is tricky to do without relying on some Apple-impleentation-dependent behaviors. Approach 2: Retrieve all data in managedObjectContext, delete retrieved data and then re-insert data Performance may be unacceptable, and people will disrespect your code :) * * * How about a third approach: perform a managed object context reset(), followed by a save(). Does that work? Finally, if you’re in the modern world of Yosemite or iOS8, maybe some of the new direct database access methods will do what you want. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/devarshi.bluechip%40gmail.com This email sent to devarshi.bluec...@gmail.com -- Thanks, Devarshi ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
