diff options
Diffstat (limited to 'docs/SkPath_Reference.bmh')
| -rw-r--r-- | docs/SkPath_Reference.bmh | 47 |
1 files changed, 26 insertions, 21 deletions
diff --git a/docs/SkPath_Reference.bmh b/docs/SkPath_Reference.bmh index e38b30da77..9caad2d481 100644 --- a/docs/SkPath_Reference.bmh +++ b/docs/SkPath_Reference.bmh @@ -456,10 +456,10 @@ kCW_Direction travel clockwise; the same added with kCCW_Direction travel counterclockwise. #Const kCW_Direction 0 - Contour travels in a clockwise direction. + Contour travels in a clockwise direction ## #Const kCCW_Direction 1 - Contour travels in a counterclockwise direction. + Contour travels in a counterclockwise direction ## @@ -744,6 +744,7 @@ Point_Array, using the formula: #Formula (this->points * weight) + ending->points * (1 - weight) ## +. weight is most useful when between zero (ending Point_Array) and one (this Point_Array); will work with values outside of this @@ -3464,10 +3465,10 @@ Four Oval parts with radii (rx, ry) start at last Path Point and ends at (x, y). ArcSize and Direction select one of the four Oval parts. #Const kSmall_ArcSize 0 -Smaller of Arc pair. +smaller of Arc pair ## #Const kLarge_ArcSize 1 -Larger of Arc pair. +larger of Arc pair ## #Example @@ -3505,18 +3506,20 @@ void draw(SkCanvas* canvas) { #Method void arcTo(SkScalar rx, SkScalar ry, SkScalar xAxisRotate, ArcSize largeArc, Direction sweep, SkScalar x, SkScalar y) -Append Arc to Path. Arc is implemented by one or more Conics weighted to describe part of Oval -with radii (rx, ry) rotated by xAxisRotate degrees. Arc curves from last Path Point to (x, y), -choosing one of four possible routes: clockwise or counterclockwise, and smaller or larger. +Append Arc to Path. Arc is implemented by one or more Conics weighted to +describe part of Oval with radii (rx, ry) rotated by xAxisRotate degrees. Arc +curves from last Path Point to (x, y), choosing one of four possible routes: +clockwise or counterclockwise, and smaller or larger. -Arc sweep is always less than 360 degrees. arcTo appends Line to (x, y) if either radii are zero, -or if last Path Point equals (x, y). arcTo scales radii (rx, ry) to fit last Path Point and -(x, y) if both are greater than zero but too small. +Arc sweep is always less than 360 degrees. arcTo appends Line to (x, y) if +either radii are zero, or if last Path Point equals (x, y). arcTo scales radii +(rx, ry) to fit last Path Point and (x, y) if both are greater than zero but +too small. arcTo appends up to four Conic curves. -arcTo implements the functionality of SVG_Arc, although SVG "sweep-flag" value is -opposite the integer value of sweep; SVG "sweep-flag" uses 1 for clockwise, while kCW_Direction -cast to int is zero. +arcTo implements the functionality of SVG_Arc, although SVG "sweep-flag" value +is opposite the integer value of sweep; SVG "sweep-flag" uses 1 for clockwise, +while kCW_Direction cast to int is zero. #Param rx radius in x before x-axis rotation ## #Param ry radius in y before x-axis rotation ## @@ -3601,7 +3604,8 @@ void draw(SkCanvas* canvas) { Append Arc to Path, relative to last Path Point. Arc is implemented by one or more Conic, weighted to describe part of Oval with radii (rx, ry) rotated by -xAxisRotate degrees. Arc curves from last Path Point (x0, y0) to end Point +xAxisRotate degrees. Arc curves from last Path Point (x0, y0) to end Point: + #Formula (x0 + dx, y0 + dy) ## @@ -3812,8 +3816,9 @@ next Quad. Maximum pts storage size is given by: #Formula (1 + 2 * (1 << pow2)) * sizeof(SkPoint) ## +. -ConvertConicToQuads returns Quad count used the approximation, which may be smaller +Returns Quad count used the approximation, which may be smaller than the number requested. Conic_Weight determines the amount of influence Conic control point has on the curve. @@ -4200,12 +4205,12 @@ void draw(SkCanvas* canvas) { Direction dir = kCW_Direction) Add Circle centered at (x, y) of size radius to Path, appending kMove_Verb, -four kConic_Verb, and kClose_Verb. Circle begins at +four kConic_Verb, and kClose_Verb. Circle begins at: #Formula (x + radius, y) ## -, continuing clockwise if dir is kCW_Direction, and counterclockwise if dir is -kCCW_Direction. +, continuing +clockwise if dir is kCW_Direction, and counterclockwise if dir is kCCW_Direction. Has no effect if radius is zero or negative. @@ -5040,9 +5045,9 @@ for (int y = 2; y < 256; y += 9) { #Method void dump(SkWStream* stream, bool forceClose, bool dumpAsHex) const -Writes text representation of Path to stream. If stream is nullptr, dump() writes to -standard output. Set forceClose to true to get -edges used to fill Path. Set dumpAsHex true to generate exact binary representations +Writes text representation of Path to stream. If stream is nullptr, writes to +standard output. Set forceClose to true to get edges used to fill Path. +Set dumpAsHex true to generate exact binary representations of floating point numbers used in Point_Array and Conic_Weights. #Param stream writable Stream receiving Path text representation; may be nullptr ## |