Set Mesh Parameters Method

FlexRIO Help

Edition Date: November 2015

Part Number: 372614J-01

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Short Name: SetMeshParms

Requires: Full Development System

Class: SceneMesh Methods

To Use: Create a method.

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.



Data typeNameRequiredDescription
Draw ModeNoSpecifies the mode LabVIEW uses to draw the mesh. The mode determines how LabVIEW interprets the data you wire to Vertex Array.

2Line Strip
3Line Loop
5Triangle Strip
6Triangle Fan
8Quad Strip
Vertex ArrayNoSets the x, y, and z values that define the array of vertices of the mesh.
IndicesNoDetermines 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 ModeNoSpecifies 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.

0Overall—One color binds uniformly to the entire mesh.
1Per Primitive—Different colors bind to each primitive in the mesh.
2Per Vertex—Different colors bind to each vertex of the mesh.
3Binding Off—No colors bind to the mesh.
Color ArrayNoSpecifies the RGBA color value for the color that Color Binding Mode applies to the 3D object.
Normal Binding ModeNoSets 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.

1Per Primitive
2Per Vertex
3Binding Off
Normal ArrayNoSets the x, y, and z values that define the array of normals that Normal Binding Mode applies to the 3D object.
Texture Coordinate ArrayNoSets 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.


The following table lists the characteristics of this method.

Data typeNo return value
Available in Run-Time EngineYes (Read/Write)
Available in Real-Time Operating SystemNo
Settable when the VI is runningYes
Loads the front panel into memoryNo
Need to authenticate before useNo
Loads the block diagram into memoryNo
Remote access allowedYes


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


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