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fengke
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Feb 28, 2018
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...er.xcodeproj/project.xcworkspace/xcuserdata/fk.xcuserdatad/UserInterfaceState.xcuserstate
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| Original file line number | Diff line number | Diff line change |
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| // | ||
| // ARTextNode.h | ||
| // ARImageViewer | ||
| // | ||
| // Created by fk on 2017/12/20. | ||
| // Copyright © 2017年 fk. All rights reserved. | ||
| // | ||
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| #import <SceneKit/SceneKit.h> | ||
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| @interface ARTextNode : SCNNode | ||
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| - (instancetype) initWithText:(NSString *)text; | ||
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| @property (nonatomic, assign) CGFloat textHeight; | ||
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| @end |
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| Original file line number | Diff line number | Diff line change |
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| // | ||
| // ARTextNode.m | ||
| // ARImageViewer | ||
| // | ||
| // Created by fk on 2017/12/20. | ||
| // Copyright © 2017年 fk. All rights reserved. | ||
| // | ||
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| #import "ARTextNode.h" | ||
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| @interface ARTextNode () | ||
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| @property (nonatomic, strong) NSString *text; | ||
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| @end | ||
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| @implementation ARTextNode | ||
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| - (instancetype) initWithText:(NSString *)text { | ||
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| self = [super init]; | ||
| if (self) { | ||
| [self updateTextContent:text]; | ||
| } | ||
| return self; | ||
| } | ||
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| - (void)updateTextContent:(NSString *)text { | ||
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| _text = text; | ||
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| CGFloat bubbleDepth = 0.01; | ||
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| SCNText *textGeo = [SCNText textWithString:text extrusionDepth:bubbleDepth]; | ||
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| textGeo.font = [self getTextFont]; | ||
| textGeo.alignmentMode = kCAAlignmentCenter; | ||
| textGeo.firstMaterial.diffuse.contents = [UIColor blackColor]; | ||
| textGeo.firstMaterial.specular.contents = [UIColor whiteColor]; | ||
| textGeo.firstMaterial.doubleSided = YES; | ||
| textGeo.chamferRadius = bubbleDepth; | ||
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| SCNVector3 minBound,maxBound; | ||
| [textGeo getBoundingBoxMin:&minBound max:&maxBound]; | ||
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| SCNNode *textNode = [SCNNode nodeWithGeometry:textGeo]; | ||
| textNode.pivot = SCNMatrix4MakeTranslation( (maxBound.x - minBound.x)/2, minBound.y, bubbleDepth/2); | ||
| textNode.scale = SCNVector3Make(0.8, 0.8, 0.8); | ||
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| _textHeight = minBound.y; | ||
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| // SCNSphere *sphere = [SCNSphere sphereWithRadius:0.005]; | ||
| // sphere.firstMaterial.diffuse.contents = [UIColor redColor]; | ||
| // SCNNode *sphereNode = [SCNNode nodeWithGeometry:sphere]; | ||
| // sphereNode.position = SCNVector3Make(0, 0, 0); | ||
| // [textNode addChildNode:sphereNode]; | ||
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| SCNBillboardConstraint *billboardConstraint = [SCNBillboardConstraint billboardConstraint]; | ||
| billboardConstraint.freeAxes = SCNBillboardAxisY; | ||
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| [self addChildNode:textNode]; | ||
| // [textNode addChildNode:sphereNode]; | ||
| self.constraints = @[billboardConstraint]; | ||
| } | ||
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| - (UIFont *)getTextFont { | ||
| return [UIFont fontWithName:@"TrebuchetMS-Bold" size:0.15]; | ||
| } | ||
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| @end |