smart_arrays_plot_polyline 2.0.10

Plots one-dimensional arrays as polylines (curves) in the browser, along with axes and legend text, with versatile view options.

Smart Arrays Plot Polyline

What the package can do for you

• This package was designed for Web applications which need to plot 1D arrays in form of polylines (curves in the x, y plane).
• A plot may consist of one or several polylines (scaled relative to each other if desired), optionally with x and y axes, a coordinate grid, a text legend, selection icons, and marker text.
• Many array viewing options are provided, such as colors, fonts, zooming, scaling, shifting, rotation, layout parameters.
• Also, lists of points represented by circles or other shapes can be drawn, e.g.to draw a curve using individual points rather than connecting the points by polylines.
• The arrays to be plotted may have small or big sizes (even e.g. 1 million points). To achieve fast plotting without loosing information given typical screen or window sizes, a suitable data compression is applied before plotting (using the compression package listed at the end of the document).
• Plotting is performed using Scalable Vector Graphics SVG.

Example

• The provided example can be directly executed via https://smart.specpad.bplaced.net/smart_arrays_plot_polyline/example.html.

• View more plot examples (generated by other packages): https://smart.specpad.bplaced.net/smart_lorentz_gauss/example.html. https://smart.specpad.bplaced.net/smart_signal_processing/example.html. https://smart.specpad.bplaced.net/smart_arrays_lmfit/example.html.

• Or, download a package from the ones above and execute the file example/example.html in your browser.

The major API functionalities

• Class SimplePlot to create a plot from several arrays, with x and y axes, a text legend and a coordinate grid with just a few lines of code.

• Class Polyline to construct a polyline plot of desired size from an array with optional layout and viewing parameters.

• Class Axis to construct an x and/or y axis for a polyline plot.

• Class XYGrid to construct a rectangular coordinate grid consisting of horizontal and/or vertical lines, to be used to overlay a polyline plot.

• Class Legend to construct a legend consisting of a text line at the top ("top title") and optionally several more lines, each one preceded by a color rectangle (useful when displaying several polylines).

• Class PhysUnits to convert between "physical units" and array indices, useful for axis annotation.

• Classes Utils and JsonUtils providing useful helper functions.

• Basic usage of the package: see example directory.

Related packages

smart_arrays_base: Basic functions for 1D and 2D arrays

smart_arrays_numerics: Numerics with 1D and 2D arrays

smart_arrays_compress: Compress 1D and 2D arrays to a smaller size.

smart_arrays_dbstore: Store 1D and 2D arrays along with metadata on the local device.

smart_arrays_peaks: Detect peaks in 1D and 2D arrays.

smart_arrays_contour_finder: Contours the three-dimensional surface represented by the values f(x,y) of a matrix.

smart_arrays_lmfit: Fits (x, y) data given as arrays to a specified model function using the Levenberg-Marquardt algorithm.

smart_lorentz_gauss: Compute Lorentz-Gauss (pseudo-Voigt) line shapes.

smart_signal_processing: Fourier transform and more of arrays.

smart_dialogs: Easy-to-use dialogs in Web applications