Set Mesh Parameters Method

Short Name: SetMeshParms

Installed With: Full Development System

Class: SceneMesh Methods

Sets the parameters that describe the mesh. Use this method to define how LabVIEW renders the 3D object to which you apply the mesh. If you do not specify a value for a parameter of this method, LabVIEW uses the current value of the parameter.

Example

Parameters

Name	Required	Description
Draw Mode	No	Specifies the mode LabVIEW uses to draw the mesh. The mode determines how LabVIEW interprets the data you wire to Vertex Array. 0 Points 1 Lines 2 Line Strip 3 Line Loop 4 Triangles 5 Triangle Strip 6 Triangle Fan 7 Quads 8 Quad Strip 9 Polygon
Vertex Array	No	Sets the x, y, and z values that define the array of vertices of the mesh.
Indices	No	Determines the order in which LabVIEW processes the data in each of the arrays of the mesh. For example, if Indices is [3, 2, 4, 1], then V0 appears at index 3 in the Vertex Array, the color of V0 appears at index 3 in the Color Array, and so on. Note  If you set Color Binding Mode to Per Primitive, then the color refers to the entire face formed by V0, V1...VN (where N is determined by Draw Mode) instead of just the specified index.
Color Binding Mode	No	Specifies the mode used to bind color to the mesh. The mode determines how LabVIEW assigns the color you specified in Color Array. Note  The Per Primitive and Overall modes differ in behavior only when Draw Mode is Points, Lines, Triangles, or Quads. 0 Overall—One color binds uniformly to the entire mesh. 1 Per Primitive—Different colors bind to each primitive in the mesh. 2 Per Vertex—Different colors bind to each vertex of the mesh. 3 Binding Off—No colors bind to the mesh.
Color Array	No	Specifies the RGBA color value for the color that Color Binding Mode applies to the 3D object.
Normal Binding Mode	No	Sets the binding mode for the normal vectors of the mesh. The mode determines how LabVIEW assigns the normals specified by Normal Array to the 3D object. Normals determine how lights in a 3D scene affect the rendering of a 3D object. 0 Overall 1 Per Primitive 2 Per Vertex 3 Binding Off
Normal Array	No	Sets the x, y, and z values that define the array of normals that Normal Binding Mode applies to the 3D object.
Texture Coordinate Array	No	Sets the s and t coordinates that define how to apply a texture to the mesh. You must assign a texture to the mesh for this array to have meaning. Each element of the array is a coordinate in a 2-D plane of domain {0..1, 0..1}, where [0,0] is the bottom-left pixel of the image, and [1, 1] is the top-right pixel.

Remarks

The following table lists the characteristics of this method.

Available in Run-Time Engine and Real-Time Operating System	Yes (Read/Write)
Settable when the VI is running	Yes
Loads the front panel into memory	No
Need to authenticate before use	No
Loads the block diagram into memory	No
Remote access disallowed	No
Must wait until user interface is idle	No
Available with control VIs	No
Available with global VIs	No
Available with strict type definitions	No
Available with polymorphic VIs	No

Example

Refer to the Using Meshes VI in the labview\examples\picture\3D Picture Control directory for an example of using the Set Mesh Parameters method.

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