Global variables and state for the neuron viewer application. More...

#include <string>
#include "neurongraph.h"
#include "globals.h"

Include dependency graph for globals.cpp:

Variables
int	renderMode = 1
	Current rendering mode (1-6) that determines how the neuron is displayed. More...

double	rotateX = 0.0f
	Rotation around the X-axis in degrees. More...

double	rotateY = 0.0f
	Rotation around the Y-axis in degrees. More...

double	zoom = 1.0f
	Zoom factor (1.0 = normal, >1.0 = zoom in, <1.0 = zoom out) More...

double	panX = 0.0f
	Horizontal pan offset in screen coordinates. More...

double	panY = 0.0f
	Vertical pan offset in screen coordinates. More...

bool	dragging = false
	Flag indicating if left mouse button is being dragged. More...

bool	rightDragging = false
	Flag indicating if right mouse button is being dragged. More...

double	lastX
	X coordinate of the last mouse position. More...

double	lastY
	Y coordinate of the last mouse position. More...

double	refineDelta = 8.0
	Refinement parameter for geometry processing. More...

std::string	help
	Help text displayed in the console and help window. More...

std::vector< SWCNode >	currentNodes
	Global container for the currently loaded neuron nodes. More...

GLFWwindow *	helpWindow = nullptr
	Pointer to the GLFW help window. More...

NeuronGraph	graph
	Global instance of the neuron graph. More...

Detailed Description

Global variables and state for the neuron viewer application.

This file contains the implementation of global variables used throughout the neuron visualization application. These variables maintain the application state, including view parameters, user interface state, and the current neuron data being visualized.

Key components:

View parameters (rotation, zoom, pan)
Rendering mode and quality settings
User interaction state (mouse dragging, etc.)
Help text and UI state
Current neuron data and graph representation

Note: These variables are declared as extern in globals.h

See also: globals.h for declarations and documentation of each variable

Author: CPPNeuronMesher Team

Date: 2025-07-27

Version: 1.0

Copyright: MIT License

Variable Documentation

◆ currentNodes

std::vector<SWCNode> currentNodes

Global container for the currently loaded neuron nodes.

Currently loaded neuron nodes for rendering.

This vector holds the SWC nodes of the currently loaded neuron. It's used throughout the application for rendering and processing.

Note: Updated when a new file is loaded via openNeuronFile()

See also: SWCNode

◆ dragging

bool dragging = false

Flag indicating if left mouse button is being dragged.

Mouse drag state flags.

◆ graph

NeuronGraph graph

Global instance of the neuron graph.

The main neuron graph data structure.

This object holds the complete neuron graph structure and provides methods for loading, processing, and querying the neuron morphology.

See also: NeuronGraph class for available operations

◆ help

std::string help

Initial value:

= "=== SWC Viewer Controls ===\n"
                   "1 - 6         | Change render mode\n"
                   "F             | Refine geometry (cubic spline)\n"
                   "Ctrl + F      | Coarsen geometry (cubic spline)\n"
                   "O             | Open SWC/UGX file\n"
                   "S             | Save to SWC/UGX file\n"
                   "R             | Reset camera view\n"
                   "H             | Help screen\n"
                   "Mouse Drag    | Rotate scene (Left Button)\n"
                   "Mouse Drag    | Pan scene (Right Button)\n"
                   "Scroll Wheel  | Zoom in/out\n"
                   "ESC           | Exit viewer"

Help text displayed in the console and help window.

Help text displayed in the help window.

Contains formatted text describing the application's keyboard and mouse controls. The text is displayed when the user presses the 'H' key or when explicitly requested.

See also: printHelpText()

◆ helpWindow

GLFWwindow* helpWindow = nullptr

Pointer to the GLFW help window.

Pointer to the help window (nullptr if not open)

This is the main window used for displaying the help text. Initialized to nullptr and created when the help window is shown.

Note: Managed by the main application loop

See also: showHelpWindow() in the main application file

◆ lastX

double lastX

X coordinate of the last mouse position.

Last recorded mouse cursor position.

◆ lastY

double lastY

Y coordinate of the last mouse position.

◆ panX

double panX = 0.0f

Horizontal pan offset in screen coordinates.

Camera pan offset in X and Y directions.

◆ panY

double panY = 0.0f

Vertical pan offset in screen coordinates.

◆ refineDelta

double refineDelta = 8.0

Refinement parameter for geometry processing.

Refinement parameter for mesh generation.

Controls the level of detail in the generated geometry. Higher values result in coarser meshes, while lower values produce more detailed meshes. Used in cubic spline interpolation.

Note: Initialized to 8.0 for a coarse starting point

See also: allCubicSplineResampledTrunks()

◆ renderMode

int renderMode = 1

Current rendering mode (1-6) that determines how the neuron is displayed.

Current rendering mode (1-5)

◆ rightDragging

bool rightDragging = false

Flag indicating if right mouse button is being dragged.

◆ rotateX

double rotateX = 0.0f

Rotation around the X-axis in degrees.

Camera rotation around X and Y axes (in degrees)

◆ rotateY

double rotateY = 0.0f

Rotation around the Y-axis in degrees.

◆ zoom

double zoom = 1.0f

Zoom factor (1.0 = normal, >1.0 = zoom in, <1.0 = zoom out)

Camera zoom factor (higher values = more zoomed in)

Variables