axom::bump::BlendData Struct Reference

This class contains views of blend data. BlendData contains the recipe for taking existing node values (e.g. coordinates, fields) and making new values that consist of node values that have been blended together in some way such as when it is necessary to introduce a new node along an edge or a new interior point. More...

#include </home/docs/checkouts/readthedocs.org/user_builds/axom/checkouts/develop/src/axom/bump/BlendData.hpp>

Public Types
using	IndexView = axom::ArrayView< IndexType >
using	CoeffView = axom::ArrayView< float >

Public Attributes
IndexView	m_originalIdsView {}
	Indices of original node ids. More...
IndexView	m_selectedIndicesView {}
	Indices of the selected blend groups. More...
IndexView	m_blendGroupSizesView {}
	Number of ids/weights in each blend group. More...
IndexView	m_blendGroupStartView {}
	Starting offset for a blend group in ids. More...
IndexView	m_blendIdsView {}
	Ids that make up blend groups. More...
CoeffView	m_blendCoeffView {}
	Weights that make up blend groups. More...

Detailed Description

This class contains views of blend data. BlendData contains the recipe for taking existing node values (e.g. coordinates, fields) and making new values that consist of node values that have been blended together in some way such as when it is necessary to introduce a new node along an edge or a new interior point.

The BlendData can be created and reused to make new coordsets and fields.

Field data are sampled using m_originalIdsView which is a compact list of the original node ids that we want to preserve without any blending.

This stream is followed by a second stream of data made using the field and the blend groups. Each blend group has m_blendGroupSizesView[i] elements, starts at m_blendGroupStartView[i] and uses values from the m_blendIdsView, m_blendCoeffView members to blend the data values.

Example:

*  Quad 0123    Make new points A,B,C using BlendGroup
*
*  3        2   A is 50% along the segment 0,1
*  *--------*   B is in the center of quad 0123
*  |        C   C is 75% along the segment 1,2
*  |    B   |
*  |        |   There are 3 blend groups (A,B,C)
*  *----A---*
*  0        1   blendGroupSizesView = {2, 4, 2};
*               blendGroupStartView = {0, 2, 6};
*               blendIdsView = {0, 1,       // A
*                               0, 1, 2, 3, // B
*                               1, 2};      // C
*               blendCoeffView = {0.5, 0.5,               // A
*                                 0.25, 0.25, 0.25, 0.25, // B
*                                 0.25, 0.75};            // C
* 

Member Typedef Documentation

IndexView

using axom::bump::BlendData::IndexView = axom::ArrayView<IndexType>

CoeffView

using axom::bump::BlendData::CoeffView = axom::ArrayView<float>

Member Data Documentation

m_originalIdsView

IndexView axom::bump::BlendData::m_originalIdsView {}

Indices of original node ids.

m_selectedIndicesView

IndexView axom::bump::BlendData::m_selectedIndicesView {}

Indices of the selected blend groups.

m_blendGroupSizesView

IndexView axom::bump::BlendData::m_blendGroupSizesView {}

Number of ids/weights in each blend group.

m_blendGroupStartView

IndexView axom::bump::BlendData::m_blendGroupStartView {}

Starting offset for a blend group in ids.

m_blendIdsView

IndexView axom::bump::BlendData::m_blendIdsView {}

Ids that make up blend groups.

m_blendCoeffView

CoeffView axom::bump::BlendData::m_blendCoeffView {}

Weights that make up blend groups.

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The documentation for this struct was generated from the following file:

• /home/docs/checkouts/readthedocs.org/user_builds/axom/checkouts/develop/src/axom/bump/BlendData.hpp