Flattens a Path object into a series of straight-line sections. More...
#include <juce_PathIterator.h>
Public Member Functions | |
PathFlatteningIterator (const Path &path, const AffineTransform &transform=AffineTransform(), float tolerance=Path::defaultToleranceForMeasurement) | |
Creates a PathFlatteningIterator. More... | |
~PathFlatteningIterator () | |
Destructor. More... | |
bool | isLastInSubpath () const noexcept |
Returns true if the current segment is the last in the current sub-path. More... | |
bool | next () |
Fetches the next line segment from the path. More... | |
Public Attributes | |
bool | closesSubPath |
Indicates whether the current line segment is closing a sub-path. More... | |
int | subPathIndex |
The index of the current line within the current sub-path. More... | |
float | x1 |
The x position of the start of the current line segment. More... | |
float | x2 |
The x position of the end of the current line segment. More... | |
float | y1 |
The y position of the start of the current line segment. More... | |
float | y2 |
The y position of the end of the current line segment. More... | |
Private Attributes | |
const bool | isIdentityTransform |
const Path & | path |
const float * | source |
HeapBlock< float > | stackBase { 32 } |
float * | stackPos |
size_t | stackSize = 32 |
float | subPathCloseX = 0 |
float | subPathCloseY = 0 |
const float | toleranceSquared |
const AffineTransform | transform |
Flattens a Path object into a series of straight-line sections.
Use one of these to iterate through a Path object, and it will convert all the curves into line sections so it's easy to render or perform geometric operations on.
@tags{Graphics}
juce::PathFlatteningIterator::PathFlatteningIterator | ( | const Path & | path, |
const AffineTransform & | transform = AffineTransform() , |
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float | tolerance = Path::defaultToleranceForMeasurement |
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Creates a PathFlatteningIterator.
After creation, use the next() method to initialise the fields in the object with the first line's position.
path | the path to iterate along |
transform | a transform to apply to each point in the path being iterated |
tolerance | the amount by which the curves are allowed to deviate from the lines into which they are being broken down - a higher tolerance contains less lines, so can be generated faster, but will be less smooth. |
juce::PathFlatteningIterator::~PathFlatteningIterator | ( | ) |
Destructor.
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Returns true if the current segment is the last in the current sub-path.
bool juce::PathFlatteningIterator::next | ( | ) |
Fetches the next line segment from the path.
This will update the member variables x1, y1, x2, y2, subPathIndex and closesSubPath so that they describe the new line segment.
bool juce::PathFlatteningIterator::closesSubPath |
Indicates whether the current line segment is closing a sub-path.
If the current line is the one that connects the end of a sub-path back to the start again, this will be true.
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int juce::PathFlatteningIterator::subPathIndex |
The index of the current line within the current sub-path.
E.g. you can use this to see whether the line is the first one in the subpath by seeing if it's 0.
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float juce::PathFlatteningIterator::x1 |
The x position of the start of the current line segment.
float juce::PathFlatteningIterator::x2 |
The x position of the end of the current line segment.
float juce::PathFlatteningIterator::y1 |
The y position of the start of the current line segment.
float juce::PathFlatteningIterator::y2 |
The y position of the end of the current line segment.