UI-neutral ray picking and transient drag state for a spline document. @ownership Borrows the document; the caller must finish or cancel before destroying it. @thread Viewport/editor thread only; no callbacks are retained or invoked. 更多...

#include <SplinePathGizmo.h>

Public 成员函数
	SplinePathDragSession (SplinePathDocument *document, int sampleCount=64)
	Create an idle session borrowing an authoritative spline document.

Result< SplinePathDragPreview >	beginDrag (double rayOriginX, double rayOriginY, double rayOriginZ, double rayDirectionX, double rayDirectionY, double rayDirectionZ)
	Pick the nearest anchor or Bezier handle sphere intersected by a world ray.

Result< SplinePathDragPreview >	updateDrag (double rayOriginX, double rayOriginY, double rayOriginZ, double rayDirectionX, double rayDirectionY, double rayDirectionZ)
	Project a pointer ray onto the original camera-facing drag plane and update only the draft.

Result< DomainOperation >	finishDrag ()
	Produce one reversible point replacement operation without applying it.

void	cancelDrag ()
	Discard transient state without changing the document.

bool	isDragging () const noexcept
	Report whether a drag owns transient state.

StableId	activePoint () const
	Return the active stable point id, or empty when idle.

const std::string &	activeHandle () const noexcept
	Return anchor, in, or out for the active handle.

详细描述

UI-neutral ray picking and transient drag state for a spline document. @ownership Borrows the document; the caller must finish or cancel before destroying it. @thread Viewport/editor thread only; no callbacks are retained or invoked.

在文件 SplinePathGizmo.h 第 42 行定义.

构造及析构函数说明

◆ SplinePathDragSession()

eve::procgen_editing::SplinePathDragSession::SplinePathDragSession	(	SplinePathDocument *	document,
		int	sampleCount = `64`
	)

explicit

Create an idle session borrowing an authoritative spline document.

在文件 SplinePathGizmo.cpp 第 109 行定义.

成员函数说明

◆ activeHandle()

const std::string & eve::procgen_editing::SplinePathDragSession::activeHandle ( ) const

inlinenoexcept

Return anchor, in, or out for the active handle.

在文件 SplinePathGizmo.h 第 63 行定义.

◆ activePoint()

StableId eve::procgen_editing::SplinePathDragSession::activePoint ( ) const

inline

Return the active stable point id, or empty when idle.

在文件 SplinePathGizmo.h 第 61 行定义.

◆ beginDrag()

Result< SplinePathDragPreview > eve::procgen_editing::SplinePathDragSession::beginDrag	(	double	rayOriginX,
		double	rayOriginY,
		double	rayOriginZ,
		double	rayDirectionX,
		double	rayDirectionY,
		double	rayDirectionZ
	)

Pick the nearest anchor or Bezier handle sphere intersected by a world ray.

在文件 SplinePathGizmo.cpp 第 132 行定义.

引用了 b, eve::procgen_editing::SplinePathGizmoBuilder::build(), c, cancelDrag(), direction, found, hit, offset, origin, point, points, eve::procgen_editing::SplinePathDocument::points() , 以及 eve::editing::EditableTargetState::revision().

◆ cancelDrag()

void eve::procgen_editing::SplinePathDragSession::cancelDrag ( )

Discard transient state without changing the document.

在文件 SplinePathGizmo.cpp 第 251 行定义.

被这些函数引用 beginDrag(), finishDrag() , 以及 updateDrag().

◆ finishDrag()

Result< DomainOperation > eve::procgen_editing::SplinePathDragSession::finishDrag ( )

Produce one reversible point replacement operation without applying it.

在文件 SplinePathGizmo.cpp 第 237 行定义.

引用了 cancelDrag(), eve::procgen_editing::SplinePathDocument::makeSetPoint(), operation , 以及 eve::editing::EditableTargetState::revision().

◆ isDragging()

bool eve::procgen_editing::SplinePathDragSession::isDragging ( ) const

inlinenoexcept

Report whether a drag owns transient state.

在文件 SplinePathGizmo.h 第 59 行定义.

◆ updateDrag()

Result< SplinePathDragPreview > eve::procgen_editing::SplinePathDragSession::updateDrag	(	double	rayOriginX,
		double	rayOriginY,
		double	rayOriginZ,
		double	rayDirectionX,
		double	rayDirectionY,
		double	rayDirectionZ
	)

Project a pointer ray onto the original camera-facing drag plane and update only the draft.

在文件 SplinePathGizmo.cpp 第 188 行定义.

该类的文档由以下文件生成:

src/modules/procgen/editing/SplinePathGizmo.h
src/modules/procgen/editing/SplinePathGizmo.cpp

Public 成员函数