2.2.4.17 GraphLayer

Name

GraphLayer

Remark

The GraphLayer class provides methods and properties common to all Origin graph layers.

Internal Origin graph pages contain one or more graph layers thus the Origin C GraphPage class contains a collection of one or more GraphLayer objects. Origin graph layers may contain Origin data plots thus the Origin C GraphLayer class contains a collection of DataPlot objects.

An Origin C GraphLayer object is a wrapper object that is a reference to an internal Origin graph layer object. Origin C wrapper objects do not actually exist in Origin and merely refer to the internal Origin object. Consequently, multiple Origin C wrapper objects can refer to the same internal Origin object.

The GraphLayer class is derived from the Layer and OriginObject classes from which it inherits methods and properties.

Hierarchy

• OriginObject
  • Layer
    • GraphLayer

Examples

EX1

//Draw a dataplot and change the color to green.
void GraphLayer_ex1()
{
    Worksheet wks;
    wks.Create("origin");
    Dataset ds1(wks,0);
    Dataset ds2(wks,1);
    ds1.Data(1,20,1);
    ds2.Normal(20);
    GraphPage gp;
    gp.Create("origin");
    GraphLayer gl(gp.GetName(), 0);
    gl.AddPlot(wks);

    if(gl)
    {
        DataPlot dp = gl.DataPlots(0);      // Get first data plot in graph layer
        dp.SetColor(2);                     // Change color to green
    }
}

Header to Include

origin.h

Reference

Members

Property