Overview

The Cosine block computes the cosine of the input value. The units of the input value are radians.

The Cosine is calculated at the update rate, determined by the Evaluate Block.

Example

The following example illustrates how to calculate the Sine & Cosine of a radian angle stored in UserBuffer[0]. The selector is used to select the Sine or Cosine calculation to output to UserBuffer[2]. UserBuffer[1] is used to select which calculation is chosen.

A BiQuad block with a Lowpass 1Hz filter was added after UserBuffer[1] block, before the selector. This allows an instaneous Zero or One to be written to UserBuffer[1]. The selector takes 1 second to fade from the origin to the destination.

The Cosine block is calculating the Cosine of the Radian angle stored in UserBuffer[0]

The configuration values for this block are as follows:

Evaluate Block	This block allows you to specify whether the block executes Every Sample, Every Other Sample (Odd or Even), or Every Fourth Sample (and specify the First, Second, Third, or Fourth) or background. This provides greater flexibility in controlling the execution of a model and to preserve performance for other areas of motion control.
User Defined Block Priority	When selected, allows you to enter a Priority Code to modify Execution Ordering of this block. For more information, see Block Execution Order and User Defined Block Priority.
Priority	For an explanation of how the Priority field is used by the MechaWare Model Downloader, see Block Execution Order and User Defined Block Priority.
User Data 0	Application-specific data. See User Data Storage.
User Data 1	Application-specific data. See User Data Storage.

Matlab/Simulink

Simulink Interface

Cosine Simulink Block

The input to the Cosine block is a double precision value, with units of radians.

The block has two user data fields (User Data 0, User Data 1) to store application-specific data for convenient storage and retrieval. See User Data Storage for details.

The block's update schedule is determined by the Evaluate Block. The following Parameter Dialog Box can be opened by double-clicking on the block in a Simulink Model:

Cosine Parameters Dialog Box

C++ API

COSBlock

Declaration

Public Method

	class COSBlock: public virtual Block { public: // User accessible coefficients };
	Required Header: mechaware.h

Description

The Cosine block computes the cosine of the input. This block has no configurable parameters.

Methods

Block Methods