#include <MPointSymbolCell.h>

Classes
struct	CellItem
	The cell item represents one point symbol entry in the tile This item has a geographical and projected symbol position, as well as the symbol ID for the symbol and flags for scale, rotation, alpha, anchor alignment and grayscale. The flags are packed into 32 bits as follows: +----—+-----—+-----—+-------—+------—+-----—+ \| alpha \| Scale \| Rotate \| hAnchor \| vAnchor \| Misc. \| +----—+-----—+-----—+-------—+------—+-----—+ 4b 8b 8b 5b 5b 2b. More...

Public Member Functions
	PointSymbolCell (double minLat, double minLon, double maxLat, double maxLon)

void	setPointSymbol (const Maria::ItemId &id, const BasicGeoTypes::GeoPos &pos, const STK::Vector2f &offset, std::uint16_t symbolIdx, std::uint32_t flags1, std::uint32_t flags2)

void	deletePointSymbol (const Maria::ItemId &id)

const BasicGeoTypes::GeoPos &	getPosition (const Maria::ItemId &id) const

std::uint32_t	getPointSymbolId (const Maria::ItemId &id) const

std::uint32_t	getFlags1 (const Maria::ItemId &id) const

std::uint32_t	getFlags2 (const Maria::ItemId &id) const

float	getAlpha (const Maria::ItemId &id) const

float	getScale (const Maria::ItemId &id) const

float	getRotation (const Maria::ItemId &id) const

float	getHAnchor (const Maria::ItemId &id) const

float	getVAnchor (const Maria::ItemId &id) const

bool	getGrayscale (const Maria::ItemId &id) const

int	getNumPointSymbols () const

bool	getCellItem (const Maria::ItemId &id, CellItem &cellItem) const

STK::Matrix4x4f	calcTileMatrix (const Maria::RasterProjector &viewport)

void	drawVertexArrays (GLuint quadVBO)

void	redraw (const std::shared_ptr< RasterProjector > &vp, const STK::Matrix4x4f &mv, STK::ShaderProgram &shader, GLuint quadVBO)

void	circleHitTest (const std::shared_ptr< RasterProjector > &vp, double px, double py, float symbolSize, int pickRadius, std::vector< Maria::ItemId > &items)

void	hitTest (const std::shared_ptr< RasterProjector > &vp, const std::shared_ptr< RasterProjector > &pickVp, const STK::Matrix4x4f &mv, STK::ShaderProgram &shader, GLuint quadVBO, STK::FBOTexture &fbo, std::vector< Maria::ItemId > &items)

Detailed Description

PointSymbolCell - One batch of point symbol objects. Point symbols are batched in grid cells so that all symbols in one cell is rendered as an instanced vertex array. This is highly efficient in OpenGL and allows us to render huge amounts of point symbols.

The vertex buffer data consists of 2D position (in projection coordinates) and a symbol index pointing to the corresponding texture cell in the texture atlas.

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

Native/MariaNative/MDrawObject/MPointSymbolCell.h
Native/MariaNative/MDrawObject/MPointSymbolCell.cpp

Classes

Public Member Functions

Detailed Description