TRACK_META: Get meta data in the current track

Description Usage Details Examples

Description

Get meta data in the current track

Usage

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Details

The variable TRACK_META can only be used to get meta data from the "current" track. If the current track is not the one you want, you can first use set_current_track to set the current track.

Don't directly use TRACK_META. The value of TRACK_META itself is meaningless. Always use in form of TRACK_META$name.

There are following meta data for the current track:

xlim:

Data range on x-axis.

xmin:

xlim[1].

xmax:

xlim[2].

xrange:

xlim[2] - xlim[1].

xcenter:

mean(xlim).

theta_lim:

Range of the angles on the spiral, measured in radians.

theta_min:

theta_lim[1].

theta_max:

theta_lim[2].

theta_range:

theta_lim[2] - theta_lim[1].

theta_center:

mean(theta_lim).

ylim:

Data range on y-axis.

ymin:

ylim[1].

ymax:

ylim[2].

yrange:

ylim[2] - ylim[1].

ycenter:

mean(ylim).

rel_height:

Fraction of height of the track to the distance between two neighbouring loops.

abs_height:

The height of the track, which is rel_height multiplied by the distance between two neighbouring loops.

track_index:

Current track index.

Examples

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spiralize documentation built on Feb. 6, 2022, 1:06 a.m.