AN3128 datasheet(46/105 Pages) STMICROELECTRONICS

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Multi-input embedded GUI library firmware

AN3128

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Doc ID 16918 Rev 5

4.1.24

SetHistogramPoints API global function

Table 29 describes the SetHistogramPoints function:

Example:

/* Declares and initiates a Page Object */

GL_Page_TypeDef page1;

Create_PageObj( &page1 );

/* Declares and initiates a Histogram Object and add it to a Page Object */

MyHistogram = NewHistogram ("MyHistogram", "Hours", "Watt", points, 24);

AddPageControlObj( 0, 0, MyHistogram, &page1 );

...

MyHistogramPoints ={1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24};

SetHistogramPoints( &page1, "MyHistogram", MyHistogramPoints, 24 );

Figure 14, 15, 16, show, in detail, the histogram object properties and methods which the

final application can use to interact with.

4.1.25

SetGraphChartPoints API global function

Table 30 describes the SetGraphChartPoints function:

Table 29.

SetHistogramPoints API function

Name

Description

Function name

SetHistogramPoints

Function prototype

GL_ErrStatus SetHistogramPoints(GL_Page_TypeDef* pPage,char*

objName,int16_tdata_points[],GL_uint8_t n_points)

Behavior description

Modify the points array of the histogram object

Input parameter {x}

*pPage: pointer to page structure

objName: name of the object

data_points[]: the array of points to be plotted on the LCD

n_points: number of points to be plotted

Output parameter {x}

None

Return value

GL_OK if successful, GL_ERROR otherwise

Required preconditions

None

Called functions

No API/HAL layer functions

Table 30.

SetGraphChartPoints API function

Name

Description

Function name

SetGraphChartPoints

Function prototype

GL_ErrStatus SetGraphChartPoints(GL_Page_TypeDef* pPage,char*

objName,int16_tdata_points[],GL_uint8_t n_points);

Behavior description

Modify the points array of the GraphChart object

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