| /**************************************************************************** |
| ** |
| ** Copyright (C) 2018 Klaralvdalens Datakonsult AB (KDAB). |
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| ** |
| ** This file is part of the Qt3D module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:BSD$ |
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| ** BSD License Usage |
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| ** as follows: |
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| ****************************************************************************/ |
| |
| import Qt3D.Core 2.0 |
| import Qt3D.Render 2.0 |
| import Qt3D.Input 2.0 |
| import Qt3D.Extras 2.0 |
| |
| Entity { |
| id: root |
| |
| property vector3d origin |
| property vector3d direction |
| property real length: 1 |
| |
| components: [ mesh, material ] |
| |
| function buildVertexBufferData(o, d, l) { |
| // Vertices |
| var v0 = o |
| var v1 = o.plus(d.times(l)) |
| |
| var vertices = [ v1, v0 ] |
| |
| var vertexArray = new Float32Array(vertices.length * 3); |
| var i = 0; |
| |
| vertices.forEach(function(vec3) { |
| vertexArray[i++] = vec3.x; |
| vertexArray[i++] = vec3.y; |
| vertexArray[i++] = vec3.z; |
| }); |
| |
| return vertexArray; |
| } |
| |
| Buffer { |
| id: vertexBuffer |
| type: Buffer.VertexBuffer |
| data: buildVertexBufferData(root.origin, root.direction, root.length) |
| } |
| |
| GeometryRenderer { |
| id: mesh |
| instanceCount: 1 |
| indexOffset: 0 |
| firstInstance: 0 |
| primitiveType: GeometryRenderer.Lines |
| |
| geometry: Geometry { |
| Attribute { |
| attributeType: Attribute.VertexAttribute |
| vertexBaseType: Attribute.Float |
| vertexSize: 3 |
| byteOffset: 0 |
| count: 2 |
| name: defaultPositionAttributeName |
| buffer: vertexBuffer |
| } |
| } |
| } |
| |
| LineMaterial { |
| id: material |
| maincolor: "white" |
| } |
| } |