大家好，今天要介绍的API为相机相关的API，这篇文章比较适合女孩子，学会了相机就会拍照了，哈哈。
下面是要介绍的API:
（1）第一个为GetFocalDistance，这个API的含义为获取相机的焦距，下方是官方的具体解释：
其API没有输入参数，只有返回值为相机的焦距。使用的时候还是先看备注，非常重要，非常重要，非常重要，重要的事情说三遍。
下面是官方使用的例子：
This example shows how to insert a camera and print out its settings.
//---------------------------------------------------------------
// Preconditions:
// 1. Open a model document that does not have any cameras inserted.
// 2. Open the Immediate window.
//
// Postconditions:
// 1. Inserts a camera in the model document.
// 2. Click View > Lights and Cameras > Properties > Camera1.
// 3. Click Zoom to Fit.
// 4. Examine the Immediate window, the graphics area, and the
// Camera1 PropertyManager page.
//-------------------------------------------------------------
using SolidWorks.Interop.sldworks;
using SolidWorks.Interop.swconst;
using System.Runtime.InteropServices;
using System;
using System.Diagnostics;
namespace Macro1CSharp.csproj
{
public partial class SolidWorksMacro
{
public void Main()
{
ModelDoc2 swModel = default(ModelDoc2);
ModelDocExtension swModelDocExt = default(ModelDocExtension);
Camera swCamera = default(Camera);
swModel = (ModelDoc2)swApp.ActiveDoc;
swModelDocExt = (ModelDocExtension)swModel.Extension;
// Insert a camera
swCamera = (Camera)swModelDocExt.InsertCamera();
// Print out camera settings
Debug.Print("ID = " + swCamera.ID);
Debug.Print("Focal distance = " + swCamera.GetFocalDistance() * 1000.0 + " mm");
Debug.Print("Perspective mode = " + swCamera.Perspective);
Debug.Print("Depth of field effects enabled = " + swCamera.DepthOfFieldEnabled);
Debug.Print("Distance from focal plane to where focus is lost = " + swCamera.DepthOfFieldOffset * 1000.0 + " mm");
Debug.Print("Horizontal angle of the field of view = " + swCamera.FieldOfViewAngle * 1000.0 + " mm");
Debug.Print("Depth of the field of view = " + swCamera.FieldOfViewDepth * 1000.0 + " mm");
Debug.Print("Height of the field of view = " + swCamera.FieldOfViewHeight * 1000.0 + " mm");
}
/// <summary>
/// The SldWorks swApp variable is pre-assigned for you.
/// </summary>
public SldWorks swApp;
}
}
（2）第二个为GetPosition，这个API的含义为获取相机的当前位置，下面是官方的具体解释：
其没有输入值，返回值为相机的当前位置IMathPoint。
本篇文章要介绍的就是这么多，我们下篇文章再见。
