Class SkyBottomLineCalculator

Create a new object of the calculator

Get the plain bottomline array

Sampling units that are used to quantize the sky and bottom line

Get the plain skyline array

Parent staffline where the skybottomline calculator is attached to

Replay the geometric skyline calc's per-measure side effects WITHOUT the expensive extent measurement, so lazy rendering can reuse cached sky/bottom lines while leaving the measures in the exact state a normal render would. (calculateLinesGeometric does correctNotePositions inside measure.draw; here we call it directly since the draw is skipped.) No-op for the non-default raster skyline path. lastMeasureFormats: see calculateLines().

This method calculates the Sky- and BottomLines for a StaffLine.

This method finds the maximum value of the BottomLine, ignoring NaN values (a loop, see getSkyLineMin()).

Returns the BottomLine's maximum for a label's box, e.g. a dynamic's, from its left to its right margin (relative to the staffline): in every sample the box touches. See getSkyLineMinForLabel().

This method returns the maximum value of the bottom line around a specific bounding box. Will return undefined if the bounding box is not valid or inside staffline

This method finds the BottomLine's maximum value within a given range.

This method finds the minimum value of the SkyLine, ignoring NaN values. A loop of Math.min(min, value) gives the same result as Math.min(...this.SkyLine.filter(s => !isNaN(s))) (including -0 before 0, and Infinity for no values), without copying the line and spreading it into the arguments of a call, which is slow for lines of thousands of values and fails for very long ones.

Returns the SkyLine's minimum for a label's box, e.g. a dynamic's, from its left to its right margin (relative to the staffline): in every sample the box touches. Unlike getSkyLineMinInRange(), not also in the sample after the box. See updateSkyLineWithLabel().

This method finds the SkyLine's minimum value within a given range.

This method merges a line (e.g. the bottom edge of a tremolo stroke between two notes) into the BottomLine, updating the BottomLine only where the line lies below it (preserving more extreme existing values), unlike updateBottomLineWithWedge, which overwrites the existing values.

This method merges a line (e.g. the top edge of a tremolo stroke between two notes) into the SkyLine, updating the SkyLine only where the line lies above it (preserving more extreme existing values), unlike updateSkyLineWithWedge, which overwrites the existing values.

Resets a bottom line in a range to its original value

Resets a SkyLine in a range to its original value

Update the whole bottomline with a certain value

Replace the sky- and bottom-line arrays directly (lazy rendering reuses the previously-computed lines of stable interior systems instead of re-measuring them; see VexFlowMusicSheetCalculator.calculateSkyBottomLines).

Update the whole skyline with a certain value

This method updates the BottomLine for a given range with a given value

Updates the BottomLine with a label's box, e.g. a dynamic's, from its left to its right margin (relative to the staffline): only in the samples the box covers completely. See updateSkyLineWithLabel().

This method updates the BottomLine for a given Wedge.

This method updates the skylines and bottomlines for mStaffLineParent.

This method updates the SkyLine for a given range with a given value //param to update the SkyLine for

Updates the SkyLine with a label's box, e.g. a dynamic's, from its left to its right margin (relative to the staffline): only in the samples the box covers completely. A label placed later reads every sample its box touches (getSkyLineMinForLabel()), so labels whose boxes don't overlap don't read each other. With updateSkyLineInRange() and getSkyLineMinInRange(), which round outward to the samples (1 / SamplingUnit wide), a label next to another one, e.g. a p right after "dim.", was placed further from the staff than it when both touched the same sample. The margins keep a label clear of what is in a sample it covers only partially.

This method updates the SkyLine for a given Wedge.

This method updates the StaffLine Borders with the Sky- and BottomLines Min- and MaxValues.

Updates sky- and bottom line with a boundingBox and its children