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 # Class ProfileSprocketBase

 Last update: 09.03.2026 

<a id="VM_Managed_CAD_Sprocket_ProfileSprocketBase"></a>

Namespace: [VM.Managed.CAD.Sprocket](VM.Managed.CAD.Sprocket.md)  
Assembly: VMDSprocket.dll

The base class is sprocket profile.

```csharp
public abstract class ProfileSprocketBase

```

#### Inheritance

object ← [ProfileSprocketBase](VM.Managed.CAD.Sprocket.ProfileSprocketBase.md)

#### Derived

[ProfileSprocket\_ASA](VM.Managed.CAD.Sprocket.ProfileSprocket_ASA.md), [ProfileSprocket\_BS](VM.Managed.CAD.Sprocket.ProfileSprocket_BS.md)

#### Extension Methods

[LinkPropertyItemCache.GetLinkProperties(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkProperties_System_Object_VM_Models_Pre_LinkPropertyType_), [LinkPropertyItemCache.GetLinkPropertiesAndValues(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkPropertiesAndValues_System_Object_VM_Models_Pre_LinkPropertyType_), [LinkPropertyItemCache.GetLinkedObjects&lt;T&gt;(object, LinkPropertyType)](VM.Models.Pre.Cache.LinkPropertyItemCache.md#VM_Models_Pre_Cache_LinkPropertyItemCache_GetLinkedObjects__1_System_Object_VM_Models_Pre_LinkPropertyType_)

## Constructors

### <a id="VM_Managed_CAD_Sprocket_ProfileSprocketBase__ctor_VM_Managed_CAD_Sprocket_ProfileDataSprocket_"></a> ProfileSprocketBase(ProfileDataSprocket)

Initializes a new instance of the  class.

```csharp
public ProfileSprocketBase(ProfileDataSprocket info)

```

#### Parameters

`info` [ProfileDataSprocket](VM.Managed.CAD.Sprocket.ProfileDataSprocket.md)

The info is data for creation profile.

## Fields

### <a id="VM_Managed_CAD_Sprocket_ProfileSprocketBase_m_Info"></a> m\_Info

The info is data for creation profile

```csharp
protected ProfileDataSprocket m_Info

```

#### Field Value

[ProfileDataSprocket](VM.Managed.CAD.Sprocket.ProfileDataSprocket.md)

### <a id="VM_Managed_CAD_Sprocket_ProfileSprocketBase_m_dRadius_shift"></a> m\_dRadius\_shift

Shift radius value.

```csharp
protected double m_dRadius_shift

```

#### Field Value

double

### <a id="VM_Managed_CAD_Sprocket_ProfileSprocketBase_m_lstPtOrigin"></a> m\_lstPtOrigin

The original point data.

```csharp
protected List<VectorBase> m_lstPtOrigin

```

#### Field Value

List&lt;VectorBase&gt;

### <a id="VM_Managed_CAD_Sprocket_ProfileSprocketBase_m_lstPtWorkPlane"></a> m\_lstPtWorkPlane

The transformed point data to work plane.

```csharp
protected List<VectorBase> m_lstPtWorkPlane

```

#### Field Value

List&lt;VectorBase&gt;

### <a id="VM_Managed_CAD_Sprocket_ProfileSprocketBase_m_strError"></a> m\_strError

Set error message when can not calculate profile.

```csharp
protected string m_strError

```

#### Field Value

string

## Properties

### <a id="VM_Managed_CAD_Sprocket_ProfileSprocketBase_Radius_Shift"></a> Radius\_Shift

Gets shift radius value.

```csharp
public double Radius_Shift { get; }

```

#### Property Value

double

## Methods

### <a id="VM_Managed_CAD_Sprocket_ProfileSprocketBase_Calculation_Gradient_VM_Managed_VectorBase_VM_Managed_VectorBase_"></a> Calculation\_Gradient(VectorBase, VectorBase)

Find the gradient of line equation

```csharp
protected double Calculation_Gradient(VectorBase _ptArbitrary1, VectorBase _ptArbitrary2)

```

#### Parameters

`_ptArbitrary1` VectorBase

The arbitrary point.

`_ptArbitrary2` VectorBase

The arbitrary point.

#### Returns

double

The gradient

### <a id="VM_Managed_CAD_Sprocket_ProfileSprocketBase_Calculation_Gradient_Bewteen_ArbitraryPoint_and_Circle_VM_Managed_VectorBase_VM_Managed_VectorBase_System_Double_"></a> Calculation\_Gradient\_Bewteen\_ArbitraryPoint\_and\_Circle(VectorBase, VectorBase, double)

Called when the gradient calculate between arbitrary point and circle.

```csharp
protected double[] Calculation_Gradient_Bewteen_ArbitraryPoint_and_Circle(VectorBase _ptArbitrary, VectorBase ptCenterofCircle, double _dRadiusofCircle)

```

#### Parameters

`_ptArbitrary` VectorBase

The arbitrary point.

`ptCenterofCircle` VectorBase

The center point of circle.

`_dRadiusofCircle` double

The radius of circle.

#### Returns

double\[\]

The array of gradient.

### <a id="VM_Managed_CAD_Sprocket_ProfileSprocketBase_Calculation_TangentPoint_Through_Line_Circle_System_Double_VM_Managed_VectorBase_VM_Managed_VectorBase_System_Double_"></a> Calculation\_TangentPoint\_Through\_Line\_Circle(double, VectorBase, VectorBase, double)

Called when tangent points calculates through line to circle.

```csharp
protected List<VectorBase> Calculation_TangentPoint_Through_Line_Circle(double dGradient, VectorBase _ptArbitrary, VectorBase ptCenterofCircle, double _dRadiusofCircle)

```

#### Parameters

`dGradient` double

The gradient.

`_ptArbitrary` VectorBase

The arbitrary point.

`ptCenterofCircle` VectorBase

The center point of circle.

`_dRadiusofCircle` double

The radius of circle.

#### Returns

List&lt;VectorBase&gt;

The list of points

### <a id="VM_Managed_CAD_Sprocket_ProfileSprocketBase_Calculation_TangentPosition_System_Double_VM_Managed_VectorBase_VM_Managed_VectorBase_System_Double_"></a> Calculation\_TangentPosition(double, VectorBase, VectorBase, double)

Called when tangent points calculates bewteen arbitrary point and circle.

```csharp
protected double[] Calculation_TangentPosition(double dGradient, VectorBase _ptArbitrary, VectorBase ptCenterofCircle, double _dRadiusofCircle)

```

#### Parameters

`dGradient` double

The gradient.

`_ptArbitrary` VectorBase

The arbitrary point.

`ptCenterofCircle` VectorBase

The center point of circle.

`_dRadiusofCircle` double

The radius of circle.

#### Returns

double\[\]

The tangent point.

### <a id="VM_Managed_CAD_Sprocket_ProfileSprocketBase_Calculation_line_Equation_VM_Managed_VectorBase_System_Double_System_Double__"></a> Calculation\_line\_Equation(VectorBase, double, ref double)

Find line equation

```csharp
protected void Calculation_line_Equation(VectorBase _ptArbitrary, double _dGradient, ref double _dConstant)

```

#### Parameters

`_ptArbitrary` VectorBase

The arbitrary point.

`_dGradient` double

y=mx+n`m`

`_dConstant` double

y=mx+n`n`

### <a id="VM_Managed_CAD_Sprocket_ProfileSprocketBase_Claculation_TangentPoint_Between_Two_Circle_VM_Managed_VectorBase_System_Double_VM_Managed_VectorBase_System_Double_"></a> Claculation\_TangentPoint\_Between\_Two\_Circle(VectorBase, double, VectorBase, double)

Called when tangent points calculates bewteen two circles.

```csharp
protected List<VectorBase> Claculation_TangentPoint_Between_Two_Circle(VectorBase ptCenter1, double dR1, VectorBase ptCenter2, double dR2)

```

#### Parameters

`ptCenter1` VectorBase

The center position

`dR1` double

The radius.

`ptCenter2` VectorBase

The center position.

`dR2` double

The radius.

#### Returns

List&lt;VectorBase&gt;

The list of points

### <a id="VM_Managed_CAD_Sprocket_ProfileSprocketBase_CreateProfile"></a> CreateProfile()

Create profile data.

```csharp
protected virtual bool CreateProfile()

```

#### Returns

bool

### <a id="VM_Managed_CAD_Sprocket_ProfileSprocketBase_GetPointData_For_WorkPlane"></a> GetPointData\_For\_WorkPlane()

Gets points data on work plane.

```csharp
public List<VectorBase> GetPointData_For_WorkPlane()

```

#### Returns

List&lt;VectorBase&gt;

### <a id="VM_Managed_CAD_Sprocket_ProfileSprocketBase_GetPointData_For_XYPlane"></a> GetPointData\_For\_XYPlane()

Gets points data on XY plane.

```csharp
public List<VectorBase> GetPointData_For_XYPlane()

```

#### Returns

List&lt;VectorBase&gt;

### <a id="VM_Managed_CAD_Sprocket_ProfileSprocketBase_Validation"></a> Validation()

Check validation of member variables

```csharp
protected virtual bool Validation()

```

#### Returns

bool

### <a id="VM_Managed_CAD_Sprocket_ProfileSprocketBase_matvec_System_Double___VM_Managed_VectorBase_"></a> matvec(double\[\], VectorBase)

```csharp
protected VectorBase matvec(double[] mat, VectorBase vecA)

```

#### Parameters

`mat` double\[\]

`vecA` VectorBase

#### Returns

VectorBase

### <a id="VM_Managed_CAD_Sprocket_ProfileSprocketBase_vectlvec_VM_Managed_VectorBase_VM_Managed_VectorBase_"></a> vectlvec(VectorBase, VectorBase)

```csharp
protected VectorBase vectlvec(VectorBase vecA, VectorBase vecB)

```

#### Parameters

`vecA` VectorBase

`vecB` VectorBase

#### Returns

VectorBase

### <a id="VM_Managed_CAD_Sprocket_ProfileSprocketBase_vectranspose_vectieldvec_VM_Managed_VectorBase_VM_Managed_VectorBase_VM_Managed_VectorBase_"></a> vectranspose\_vectieldvec(VectorBase, VectorBase, VectorBase)

```csharp
protected double vectranspose_vectieldvec(VectorBase vecDepth, VectorBase vecA, VectorBase vecB)

```

#### Parameters

`vecDepth` VectorBase

`vecA` VectorBase

`vecB` VectorBase

#### Returns

double