OpenGL-optimized chart base class for plugin chart types. More...

#include <ocpn_plugin.h>

Inheritance diagram for PlugInChartBaseGL:

Public Member Functions
virtual int	RenderRegionViewOnGL (const wxGLContext &glc, const PlugIn_ViewPort &VPoint, const wxRegion &Region, bool b_use_stencil)
	Renders chart content using OpenGL.

virtual ListOfPI_S57Obj *	GetObjRuleListAtLatLon (float lat, float lon, float select_radius, PlugIn_ViewPort *VPoint)
	Gets chart objects near specified position.

virtual wxString	CreateObjDescriptions (ListOfPI_S57Obj *obj_list)
	Creates description text for chart objects.

virtual int	GetNoCOVREntries ()
	Gets number of no-coverage areas in chart.

virtual int	GetNoCOVRTablePoints (int iTable)
	Gets number of points in no-coverage area boundary.

virtual int	GetNoCOVRTablenPoints (int iTable)
	Alternative to GetNoCOVRTablePoints().

virtual float *	GetNoCOVRTableHead (int iTable)
	Gets coordinate data for no-coverage area boundary.

Public Member Functions inherited from PlugInChartBase
virtual wxString	GetFileSearchMask (void)
	Returns file pattern(s) for chart files this plugin can handle.

virtual int	Init (const wxString &full_path, int init_flags)
	Initializes a chart instance from a file.

virtual void	SetColorScheme (int cs, bool bApplyImmediate)
	Sets the color scheme for chart display.

virtual double	GetNormalScaleMin (double canvas_scale_factor, bool b_allow_overzoom)
	Returns the minimum recommended scale for this chart.

virtual double	GetNormalScaleMax (double canvas_scale_factor, int canvas_width)
	Returns the maximum recommended scale for this chart.

virtual double	GetNearestPreferredScalePPM (double target_scale_ppm)
	Returns the nearest preferred scale value for this chart.

virtual bool	GetChartExtent (ExtentPI *pext)
	Gets the geographic boundaries of the chart.

virtual wxBitmap &	RenderRegionView (const PlugIn_ViewPort &VPoint, const wxRegion &Region)
	Renders a region of the chart for display.

virtual bool	AdjustVP (PlugIn_ViewPort &vp_last, PlugIn_ViewPort &vp_proposed)
	Adjusts viewport parameters for chart-specific requirements.

virtual void	GetValidCanvasRegion (const PlugIn_ViewPort &VPoint, wxRegion *pValidRegion)
	Determines the valid display area for this chart.

virtual int	GetCOVREntries ()
	Returns the number of coverage table entries for this chart.

virtual int	GetCOVRTablePoints (int iTable)
	Returns the number of points in a specific coverage table entry.

virtual int	GetCOVRTablenPoints (int iTable)
	Alternative method to get the number of points in a coverage table entry.

virtual float *	GetCOVRTableHead (int iTable)
	Returns a pointer to the coverage table data for a specific entry.

virtual wxBitmap *	GetThumbnail (int tnx, int tny, int cs)
	Generates a thumbnail image of the chart.

virtual wxString	GetFullPath () const
	Returns the full file path of the chart.

virtual ChartTypeEnumPI	GetChartType ()
	Returns the chart type identifier.

virtual ChartFamilyEnumPI	GetChartFamily ()
	Returns the chart family classification.

virtual OcpnProjTypePI	GetChartProjection ()
	Returns the projection type used by the chart.

virtual wxString	GetName ()
	Returns the chart's name or title.

virtual wxString	GetDescription ()
	Returns a descriptive text about the chart.

virtual wxString	GetID ()
	Returns a unique identifier for the chart.

virtual wxString	GetSE ()
	Returns the chart's source edition identifier.

virtual wxString	GetDepthUnits ()
	Returns the depth units used in the chart.

virtual wxString	GetSoundingsDatum ()
	Returns the vertical datum used for soundings in the chart.

virtual wxString	GetDatumString ()
	Returns the horizontal geodetic datum of the chart.

virtual wxString	GetExtraInfo ()
	Returns additional information about the chart.

virtual wxString	GetPubDate ()
	Returns the publication date/year of the chart.

virtual double	GetChartErrorFactor ()
	Returns the error factor for the chart.

virtual ChartDepthUnitTypePI	GetDepthUnitId ()
	Returns the depth unit type identifier.

virtual bool	IsReadyToRender ()
	Indicates whether the chart is ready for rendering.

virtual int	GetNativeScale ()
	Returns the native scale of the chart.

virtual double	GetChartSkew ()
	Returns the skew/rotation angle of the chart.

virtual wxDateTime	GetEditionDate (void)
	Returns the edition date of the chart.

virtual void	ComputeSourceRectangle (const PlugIn_ViewPort &vp, wxRect *pSourceRect)
	Computes the source rectangle for the chart based on a given viewport.

virtual double	GetRasterScaleFactor ()
	Returns the scale factor for raster chart rendering.

virtual bool	GetChartBits (wxRect &source, unsigned char *pPix, int sub_samp)
	Gets pixel data for a portion of a raster chart.

virtual int	GetSize_X ()
	Gets the width of the chart in pixels.

virtual int	GetSize_Y ()
	Gets the height of the chart in pixels.

virtual void	latlong_to_chartpix (double lat, double lon, double &pixx, double &pixy)
	Converts geographic coordinates to chart pixel coordinates.

virtual void	chartpix_to_latlong (double pixx, double pixy, double plat, double plon)
	Converts chart pixel coordinates to geographic coordinates.

Additional Inherited Members
Protected Attributes inherited from PlugInChartBase
ChartTypeEnumPI	m_ChartType

ChartFamilyEnumPI	m_ChartFamily

wxString	m_FullPath

OcpnProjTypePI	m_projection

int	m_Chart_Scale

double	m_Chart_Skew

wxDateTime	m_EdDate

bool	m_bReadyToRender

wxString	m_Name

wxString	m_Description

wxString	m_ID

wxString	m_SE

wxString	m_SoundingsDatum

wxString	m_datum_str

wxString	m_PubYear

wxString	m_DepthUnits

wxString	m_ExtraInfo

ChartDepthUnitTypePI	m_depth_unit_id

double	m_Chart_Error_Factor

Detailed Description

OpenGL-optimized chart base class for plugin chart types.

Derived from PlugInChartBase, this class adds OpenGL-specific rendering methods for vector charts. It's designed for charts that can benefit from hardware acceleration and OpenGL features.

Key capabilities:

Direct OpenGL rendering for better performance
Vector object management and queries
Support for S57 chart features

Examples: /home/runner/work/main/main/opencpn/include/ocpn_plugin.h.

Definition at line 3418 of file ocpn_plugin.h.

Constructor & Destructor Documentation

◆ PlugInChartBaseGL()

PlugInChartBaseGL::PlugInChartBaseGL ( )

Definition at line 3513 of file pluginmanager.cpp.

◆ ~PlugInChartBaseGL()

PlugInChartBaseGL::~PlugInChartBaseGL ( )

virtual

Definition at line 3515 of file pluginmanager.cpp.

Member Function Documentation

◆ CreateObjDescriptions()

wxString PlugInChartBaseGL::CreateObjDescriptions ( ListOfPI_S57Obj * obj_list )

virtual

Creates description text for chart objects.

Generates human-readable descriptions of S57 objects for tooltips and info displays.

Parameters

obj_list List of objects to describe

Returns: Formatted description text

Definition at line 3529 of file pluginmanager.cpp.

◆ GetNoCOVREntries()

int PlugInChartBaseGL::GetNoCOVREntries ( )

virtual

Gets number of no-coverage areas in chart.

Returns: Number of no-coverage table entries (0 if none)

Definition at line 3533 of file pluginmanager.cpp.

◆ GetNoCOVRTableHead()

float * PlugInChartBaseGL::GetNoCOVRTableHead ( int iTable )

virtual

Gets coordinate data for no-coverage area boundary.

Parameters

iTable Index of no-coverage area

Returns: Pointer to array of lat/lon points, NULL if invalid index

Definition at line 3539 of file pluginmanager.cpp.

◆ GetNoCOVRTablenPoints()

int PlugInChartBaseGL::GetNoCOVRTablenPoints ( int iTable )

virtual

Alternative to GetNoCOVRTablePoints().

Parameters

iTable Index of no-coverage area

Returns: Number of points in boundary polygon

Definition at line 3537 of file pluginmanager.cpp.

◆ GetNoCOVRTablePoints()

int PlugInChartBaseGL::GetNoCOVRTablePoints ( int iTable )

virtual

Gets number of points in no-coverage area boundary.

Parameters

iTable Index of no-coverage area

Returns: Number of points in boundary polygon

Definition at line 3535 of file pluginmanager.cpp.

◆ GetObjRuleListAtLatLon()

ListOfPI_S57Obj * PlugInChartBaseGL::GetObjRuleListAtLatLon	(	float	lat,
		float	lon,
		float	select_radius,
		PlugIn_ViewPort *	VPoint
	)

virtual

Gets chart objects near specified position.

Returns list of S57 objects within selection radius of given position. Used for object queries and pick operations.

Parameters

lat	Position latitude
lon	Position longitude
select_radius	Search radius in pixels
VPoint	Current viewport

Returns: List of S57 objects found, NULL if none

Definition at line 3524 of file pluginmanager.cpp.

◆ RenderRegionViewOnGL()

int PlugInChartBaseGL::RenderRegionViewOnGL	(	const wxGLContext &	glc,
		const PlugIn_ViewPort &	VPoint,
		const wxRegion &	Region,
		bool	b_use_stencil
	)

virtual

Renders chart content using OpenGL.

Primary rendering method for OpenGL-enabled chart display. Allows efficient hardware-accelerated rendering of vector charts.

Parameters

glc	OpenGL context for rendering
VPoint	Current viewport parameters
Region	Region to render in screen coordinates
b_use_stencil	True to enable stencil buffer for clipping

Returns: Status/error code: 0 = no error Other values indicate rendering errors

Definition at line 3517 of file pluginmanager.cpp.

The documentation for this class was generated from the following files:

/home/runner/work/main/main/opencpn/include/ocpn_plugin.h
/home/runner/work/main/main/opencpn/gui/src/pluginmanager.cpp

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ PlugInChartBaseGL()

◆ ~PlugInChartBaseGL()

Member Function Documentation

◆ CreateObjDescriptions()

◆ GetNoCOVREntries()

◆ GetNoCOVRTableHead()

◆ GetNoCOVRTablenPoints()

◆ GetNoCOVRTablePoints()

◆ GetObjRuleListAtLatLon()

◆ RenderRegionViewOnGL()