void TapAction(UITapGestureRecognizer tap)
{
if (tap.State == UIGestureRecognizerState.Ended)
{
var tapLocation = tap.LocationInView(sceneView);
var hitResults = sceneView.HitTest(tapLocation, new NSDictionary());
if (hitResults.Length != 0)
{
var NodeResult = hitResults[0].Node;
if (NodeResult != null)
{
var nodeText = SCNText.Create(NodeResult.Name, 5);
var textNode = SCNNode.Create();
textNode.Geometry = nodeText;
textNode.Scale = new SCNVector3(0.01f, 0.01f, 0.01f);
var min = new SCNVector3();
var max = new SCNVector3();
textNode.GetBoundingBox(ref min, ref max);
textNode.Position = new SCNVector3((textNode.Position.X - (textNode.Scale.X / 2)), textNode.Position.Y + 0.5f, textNode.Position.Z);
NodeResult.AddChildNode(textNode);
}
}
}
}
SCNGeometry CreateGeometry(string text, float extrusionDepth, UIColor color)
{
SCNText geometry = SCNText.Create(text, extrusionDepth);
geometry.Font = UIFont.FromName("Arial", 0.15f);
geometry.Flatness = 0;
geometry.FirstMaterial.DoubleSided = true;
geometry.FirstMaterial.Diffuse.Contents = color;
return(geometry);
}
public override void DidAddNode(ISCNSceneRenderer renderer, SCNNode node, ARAnchor anchor)
{
if (anchor is ARImageAnchor imageAnchor)
{
var box = new SCNBox();
nfloat width = imageAnchor.ReferenceImage.PhysicalSize.Width;
nfloat height = imageAnchor.ReferenceImage.PhysicalSize.Height;
box.Width = width;
box.Height = height;
box.Length = (System.nfloat) 0.1;
box.FirstMaterial.Diffuse.Contents = UIColor.Orange;
SCNText text = SCNText.Create("Enter Here", (System.nfloat) 0.1);
text.Font = UIFont.SystemFontOfSize(1);
text.Flatness = (System.nfloat) 0.05;
text.FirstMaterial.Diffuse.Contents = UIColor.Red;
var textNode = new SCNNode
{
Geometry = text,
};
textNode.Scale = new SCNVector3((float)0.5, (float)0.5, (float)0.5);
textNode.EulerAngles = new SCNVector3((float)(-1.57), 0, 0);
textNode.Position = new SCNVector3
{
X = (float)(imageAnchor.Transform.Column3.X + 2),
Y = imageAnchor.Transform.Column3.Y - 2,
Z = imageAnchor.Transform.Column3.Z
};
var boxNode = new SCNNode
{
Geometry = box,
Position = new SCNVector3 {
X = -imageAnchor.Transform.Column3.X / 2,
Y = -imageAnchor.Transform.Column3.Y,
Z = imageAnchor.Transform.Column3.Z
}
};
node.AddChildNode(textNode);
//node.AddChildNode(boxNode);
}
}
/// <summary>
/// Geometry to create the 3D effect
/// </summary>
/// <param name="text">string text</param>
/// <param name="color">color of text</param>
/// <returns>3D text in specified color</returns>
private static SCNGeometry CreateGeometry(string text, UIColor color)
{
var geometry = SCNText.Create(text, 0.01f);
geometry.Font = UIFont.FromName("Courier", 0.5f);
geometry.Flatness = 0;
geometry.FirstMaterial.DoubleSided = true;
geometry.FirstMaterial.Diffuse.Contents = color;
geometry.FirstMaterial.Specular.Contents = UIColor.Blue;
return(geometry);
}
public void DidAddNode(ISCNSceneRenderer renderer, SCNNode node, ARAnchor anchor)
{
var planeAnchor = anchor as ARPlaneAnchor;
if (planeAnchor == null)
{
return;
}
Console.WriteLine("didAddNode");
var text = SCNText.Create("This is a good spot", 0);
text.Font = UIFont.FromName("Arial", 1);
if (text.FirstMaterial != null)
{
text.FirstMaterial.Diffuse.Contents = UIColor.Green;
}
var textNode = SCNNode.FromGeometry(text);
textNode.Position = new SCNVector3(-0.3f, -0.55f, 0.25f);
textNode.Scale = new SCNVector3(0.075f, 0.1f, 0.5f);
var plane = SCNPlane.Create(new nfloat(planeAnchor.Extent.X), new nfloat(planeAnchor.Extent.Z));
var planeNode = SCNNode.FromGeometry(plane);
planeNode.Position = new SCNVector3(planeAnchor.Center.X, 0f, planeAnchor.Center.Z);
var txtAngles = textNode.EulerAngles;
txtAngles.X = (float)(-1f * (Math.PI / 2f));
textNode.EulerAngles = txtAngles;
var planeAngles = planeNode.EulerAngles;
planeAngles.X = (float)(-1f * (Math.PI / 2f));
planeNode.EulerAngles = planeAngles;
planeNode.Opacity = 0.25f;
node.AddChildNode(planeNode);
node.AddChildNode(textNode);
}
public static SCNNode SCLabelNode(string message, LabelSize size, bool isLit)
{
var node = SCNNode.Create();
var text = SCNText.Create(message, 0);
node.Geometry = text;
node.Scale = new SCNVector3((0.01f * (int)size), (0.01f * (int)size), (0.01f * (int)size));
text.Flatness = 0.4f;
// Use Myriad it's if available, otherwise Avenir
text.Font = NSFont.FromFontName("Myriad Set", 50) != null?NSFont.FromFontName("Myriad Set", 50) : NSFont.FromFontName("Avenir Medium", 50);
if (!isLit)
{
text.FirstMaterial.LightingModelName = SCNLightingModel.Constant;
}
return(node);
}
static SCNNode CreateTextNode(string text, UIFont font, UIColor color, UIColor bgColor, float kerning = 0)
{
kerning = 1;
var attrString = new NSMutableAttributedString(text, font);
var textGeometry = SCNText.Create(attrString, 0);
textGeometry.FirstMaterial.Diffuse.Contents = UIColor.DarkTextColor;
textGeometry.FirstMaterial.LightingModelName = SCNLightingModel.Constant;
textGeometry.FirstMaterial.DoubleSided = true;
textGeometry.FirstMaterial.ReadsFromDepthBuffer = false;
textGeometry.FirstMaterial.WritesToDepthBuffer = false;
textGeometry.ChamferRadius = 0f;
var textNode = new SCNNode
{
Geometry = textGeometry
};
textNode.Center();
var container = CreateBackgroundPlaneNode(textNode.Size(), bgColor, 0);
container.AddChildNode(textNode);
return(container);
}
private void PlaceFeature(string message, CGPoint p, float offset)
{
// Create and configure a node with a text geometry, and add it to the scene
var text = SCNText.Create(message, 5);
text.Font = Font;
text.Flatness = 0.4f;
text.Materials = Materials;
var textNode = SCNNode.Create();
textNode.Geometry = text;
textNode.Position = new SCNVector3(p.X, p.Y + Altitude, 0);
textNode.Scale = new SCNVector3(0.02f, 0.02f, 0.02f);
ContentNode.AddChildNode(textNode);
// Animation the node's position and opacity
var positionAnimation = CABasicAnimation.FromKeyPath("position.z");
positionAnimation.From = NSNumber.FromInt16(-10);
positionAnimation.To = NSNumber.FromInt16(14);
positionAnimation.Duration = 7.0f;
positionAnimation.TimeOffset = -offset * positionAnimation.Duration;
positionAnimation.RepeatCount = float.MaxValue;
textNode.AddAnimation(positionAnimation, new NSString("positionAnimation"));
var opacityAnimation = CAKeyFrameAnimation.FromKeyPath("opacity");
opacityAnimation.KeyTimes = new NSNumber[] { 0.0f, 0.2f, 0.9f, 1.0f };
opacityAnimation.Values = new NSNumber[] { 0.0f, 1.0f, 1.0f, 0.0f };
opacityAnimation.Duration = positionAnimation.Duration;
opacityAnimation.TimeOffset = positionAnimation.TimeOffset;
opacityAnimation.RepeatCount = float.MaxValue;
textNode.AddAnimation(opacityAnimation, new NSString("opacityAnimation"));
}
// Takes a string an creates a node hierarchy where each letter is an independent geometry that is animated
private SCNNode SplittedStylizedText(string message)
{
var textNode = SCNNode.Create();
var frontMaterial = TextFrontMaterial();
var border = TextSideAndChamferMaterial();
// Current x position of the next letter to add
var positionX = 0.0f;
// For each letter
for (var i = 0; i < message.Length; i++)
{
var letterNode = SCNNode.Create();
var letterString = message.Substring(i, 1);
var text = SCNText.Create(letterString, 50.0f);
text.Font = NSFont.FromFontName("Avenir Next Heavy", 288);
text.ChamferRadius = 3.0f;
text.ChamferProfile = TextChamferProfile();
// use a different material for the "heart" character
var finalFrontMaterial = frontMaterial;
if (i == 1)
{
finalFrontMaterial = (SCNMaterial)finalFrontMaterial.Copy();
finalFrontMaterial.Diffuse.Contents = NSColor.Red;
finalFrontMaterial.Reflective.Contents = NSColor.Black;
letterNode.Scale = new SCNVector3(1.1f, 1.1f, 1.0f);
}
text.Materials = new SCNMaterial[] { finalFrontMaterial, finalFrontMaterial, border, border, border };
letterNode.Geometry = text;
textNode.AddChildNode(letterNode);
// measure the letter we just added to update the position
SCNVector3 min, max;
max = new SCNVector3(0, 0, 0);
min = new SCNVector3(0, 0, 0);
if (letterNode.GetBoundingBox(ref min, ref max))
{
letterNode.Position = new SCNVector3(positionX - min.X + (max.X + min.X) * 0.5f, -min.Y, 0);
positionX += (float)max.X;
}
else
{
// if we have no bounding box, it is probably because of the "space" character. In that case, move to the right a little bit.
positionX += 50.0f;
}
// Place the pivot at the center of the letter so that the rotation animation looks good
letterNode.Pivot = SCNMatrix4.CreateTranslation((max.X + min.X) * 0.5f, 0, 0);
// Animate the letter
var animation = CAKeyFrameAnimation.GetFromKeyPath("rotation");
animation.Duration = 4.0f;
animation.KeyTimes = new NSNumber[] { 0.0f, 0.3f, 1.0f };
animation.Values = new NSObject[] {
NSValue.FromVector(new SCNVector4(0, 1, 0, 0)),
NSValue.FromVector(new SCNVector4(0, 1, 0, (float)(Math.PI * 2))),
NSValue.FromVector(new SCNVector4(0, 1, 0, (float)(Math.PI * 2)))
};
var timingFunction = CAMediaTimingFunction.FromName(CAMediaTimingFunction.EaseInEaseOut);
animation.TimingFunctions = new CAMediaTimingFunction[] { timingFunction, timingFunction, timingFunction };
animation.RepeatCount = float.MaxValue;
animation.BeginTime = CAAnimation.CurrentMediaTime() + 1.0 + i * 0.2; // desynchronize animations
letterNode.AddAnimation(animation, new NSString("letterNodeAnimation"));
}
return(textNode);
}
private SCNNode NodeWithText(string message, TextType type, int level)
{
var textNode = SCNNode.Create();
// Bullet
if (type == TextType.Bullet)
{
if (level == 0)
{
message = "• " + message;
}
else
{
var bullet = SCNNode.Create();
bullet.Geometry = SCNPlane.Create(10.0f, 10.0f);
bullet.Geometry.FirstMaterial.Diffuse.Contents = NSColor.FromDeviceRgba((float)(160 / 255.0), (float)(182 / 255.0), (float)(203 / 255.0), 1);
bullet.Position = new SCNVector3(80, 30, 0);
bullet.Geometry.FirstMaterial.LightingModelName = SCNLightingModel.Constant;
bullet.Geometry.FirstMaterial.WritesToDepthBuffer = false;
bullet.RenderingOrder = 1;
textNode.AddChildNode(bullet);
message = "\t\t\t\t" + message;
}
}
// Text attributes
var extrusion = ExtrusionDepthForTextType(type);
var text = SCNText.Create(message, extrusion);
textNode.Geometry = text;
text.Flatness = TEXT_FLATNESS;
text.ChamferRadius = (extrusion == 0 ? 0 : TEXT_CHAMFER);
text.Font = FontForTextType(type, level);
// Layout
var layoutManager = new NSLayoutManager();
var leading = layoutManager.DefaultLineHeightForFont(text.Font);
var descender = text.Font.Descender;
int newlineCount = ((string[])(((string)text.String.ToString()).Split('\n'))).Length;
textNode.Pivot = SCNMatrix4.CreateTranslation(0, -descender + newlineCount * leading, 0);
if (type == TextType.Chapter)
{
var min = new SCNVector3();
var max = new SCNVector3();
textNode.GetBoundingBox(ref min, ref max);
textNode.Position = new SCNVector3(-11, (-min.Y + textNode.Pivot.M42) * TEXT_SCALE, 7);
textNode.Scale = new SCNVector3(TEXT_SCALE, TEXT_SCALE, TEXT_SCALE);
textNode.Rotation = new SCNVector4(0, 1, 0, (float)(Math.PI / 270.0));
}
else
{
textNode.Position = new SCNVector3(-16, CurrentBaseline, 0);
textNode.Scale = new SCNVector3(TEXT_SCALE, TEXT_SCALE, TEXT_SCALE);
}
// Material
if (type == TextType.Chapter)
{
var frontMaterial = SCNMaterial.Create();
var sideMaterial = SCNMaterial.Create();
frontMaterial.Emission.Contents = NSColor.DarkGray;
frontMaterial.Diffuse.Contents = ColorForTextType(type, level);
sideMaterial.Diffuse.Contents = NSColor.LightGray;
textNode.Geometry.Materials = new SCNMaterial[] {
frontMaterial,
frontMaterial,
sideMaterial,
frontMaterial,
frontMaterial
};
}
else
{
// Full white emissive material (visible even when there is no light)
textNode.Geometry.FirstMaterial = SCNMaterial.Create();
textNode.Geometry.FirstMaterial.Diffuse.Contents = NSColor.Black;
textNode.Geometry.FirstMaterial.Emission.Contents = ColorForTextType(type, level);
// Don't write to the depth buffer because we don't want the text to be reflected
textNode.Geometry.FirstMaterial.WritesToDepthBuffer = false;
// Render last
textNode.RenderingOrder = 1;
}
return(textNode);
}
