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ElectrodeObject

Namespace: DISP3DLIB  ·  Library: 3D Display Library

#include <disp3D/electrodeobject.h>

class DISP3DLIB::ElectrodeObject

Data model for stereotactic depth electrode (sEEG) visualization.

Holds electrode shaft definitions and contact metadata, and generates CPU-side geometry (vertices/indices) that a QRhi-based renderer can upload to the GPU.

Public Methods​

ElectrodeObject()​

~ElectrodeObject()​

setArrays(arrays)​

Set electrode data from array definitions.

Parameters:

  • arrays : const QVector< ElectrodeArray > & Vector of electrode arrays.

arrays()​

Returns:

  • const QVector< ElectrodeArray > & — Const reference to the current arrays.

totalContactCount()​

Returns:

  • int — Total number of contacts across all shafts.

setContactValues(values, minColor, maxColor)​

Apply per-contact scalar overlay values and map them to a color gradient.

Parameters:

  • values : const QMap< QString, float > & Map of contact name -> scalar value.

  • minColor : const QColor & Color for the minimum value (default: blue).

  • maxColor : const QColor & Color for the maximum value (default: red).

selectContact(name)​

Select a contact by name.

Clears the previous selection.

Parameters:

  • name : const QString & Contact name to select.

clearSelection()​

Clear all contact selections.

selectedContact()​

Returns:

  • QString — Name of the currently selected contact, or empty string if none.

generateShaftGeometry(vertices, indices, cylinderSides)​

Generate interleaved vertex + index data for all shaft cylinders.

Each vertex: position (3 floats) + normal (3 floats) = 6 floats.

Parameters:

  • vertices : QVector< float > & Vertex buffer (position + normal interleaved).

  • indices : QVector< unsigned int > & Index buffer (triangles).

  • cylinderSides : int Number of sides for the cylinder cross-section.

generateContactInstances(instanceData)​

Generate per-instance data for contact spheres.

Per instance: position (3) + radius (1) + color RGBA (4) + selected flag (1) = 9 floats.

Parameters:

  • instanceData : QVector< float > & Flat float buffer.

boundingBoxMin()​

Returns:

  • QVector3D — Axis-aligned bounding box minimum corner (with contact-radius padding).

boundingBoxMax()​

Returns:

  • QVector3D — Axis-aligned bounding box maximum corner (with contact-radius padding).

updateBuffers(rhi, u)​

Update GPU buffers (shaft vertex/index, contact instance) via QRhi.

Parameters:

  • rhi : *QRhi ** Pointer to QRhi instance.

  • u : *QRhiResourceUpdateBatch ** Resource update batch.

vertexBuffer()​

Returns:

  • *QRhiBuffer ** — Shaft vertex buffer (position + normal interleaved, 6 floats/vertex).

indexBuffer()​

Returns:

  • *QRhiBuffer ** — Shaft index buffer.

instanceBuffer()​

Returns:

  • *QRhiBuffer ** — Contact instance buffer (9 floats/instance).

shaftIndexCount()​

Returns:

  • uint32_t — Number of shaft indices for drawIndexed.

contactInstanceCount()​

Returns:

  • uint32_t — Number of contact instances for instanced draw.

Authors of this file​