Class BlockInfo
- Namespace
- easyar
The model obtained by dense reconstruction is represented by a triangle mesh, called mesh. Because mesh is updated frequently, to ensure efficiency, the mesh of the entire reconstructed model is divided into many mesh blocks. A mesh block consists of a cube with side length of about 1 meter, containing elements such as vertex and index. BlockInfo describes the contents of a mesh block. Here (x,y,z) is the index of the mesh block. Multiplying (x,y,z) by the physical size of each mesh block gives the coordinates of the origin of this mesh block in the world coordinate system. The parts that need to be displayed can be filtered in advance by the position of the mesh block in the world to save rendering time.
Record BlockInfoProperties
x
The x in the index (x,y,z) of the mesh block.
int xint xpublic int xpublic Int x@property (nonatomic) int xpublic var x: Int32public int xy
The y in the index (x,y,z) of the mesh block.
int yint ypublic int ypublic Int y@property (nonatomic) int ypublic var y: Int32public int yz
The z in the index (x,y,z) of the mesh block.
int zint zpublic int zpublic Int z@property (nonatomic) int zpublic var z: Int32public int znumOfVertex
The number of vertices in a mesh block.
int numOfVertexint numOfVertexpublic int numOfVertexpublic Int numOfVertex@property (nonatomic) int numOfVertexpublic var numOfVertex: Int32public int numOfVertexstartPointOfVertex
The starting position where vertex data is stored in the vertex buffer, indicating from which vertex the current mesh block begins. It is not the byte count of the offset. The offset of the starting position is startPointOfVertex34 bytes.
int startPointOfVertexint startPointOfVertexpublic int startPointOfVertexpublic Int startPointOfVertex@property (nonatomic) int startPointOfVertexpublic var startPointOfVertex: Int32public int startPointOfVertexnumOfIndex
The number of indices in a mesh block. Every 3 consecutive vertices form a triangular face.
int numOfIndexint numOfIndexpublic int numOfIndexpublic Int numOfIndex@property (nonatomic) int numOfIndexpublic var numOfIndex: Int32public int numOfIndexstartPointOfIndex
Similar to startPointOfVertex. The starting position where index data is stored in the index buffer, indicating from which index the current mesh block begins. It is not the byte count of the offset. The offset of the starting position is startPointOfIndex34 bytes.
int startPointOfIndexint startPointOfIndexpublic int startPointOfIndexpublic Int startPointOfIndex@property (nonatomic) int startPointOfIndexpublic var startPointOfIndex: Int32public int startPointOfIndexversion
The number of times the current mesh block has been updated. A larger version indicates more updates. If the version of a mesh block becomes larger after calling updateSceneMesh, it means its contents have changed.