Contents:

• Rbc — Refactored BLT Components for Tcl/Tk 9
  • Components
  • Requirements
    • Running Rbc
    • Building Rbc
  • Building from source
    • Linux
    • Windows with MSVC
    • Windows with MSYS2/UCRT64
    • Configure options and renderer defaults
    • Linking Cairo statically
      • MSYS2/UCRT64
      • Static Cairo on Linux
      • Rebuilding and deployment
    • Installation locations
  • Loading the package
    • Using an uninstalled build
  • Running tests
  • Running demos
  • Rendering benchmarks
  • Documentation
    • Regenerating documentation
  • Reporting problems
  • History and acknowledgments
  • Copyright and licensing
• Tcl/Tk 9 upgrade and additions
  • User-visible additions
    • MSVC builds on Windows
    • Optional Cairo rendering
    • Display decimation and streaming updates
    • Graph interaction and toolbar
    • Custom closest-point annotations
    • Complex vectors
    • Polar and Smith charts
    • Area closure and transparency
    • Plot-only element hiding
    • Arrowheads for line markers
    • Bar geometry from element closest
    • Custom element value labels
  • Implementation modernization
    • Tcl 9 command and object API
    • 64-bit and Tcl_Size support
    • Modern Tk option handling
    • Component option-database lookup
    • Graph object and resource lifetime
    • Axis and coordinate-system modernization
    • Line, bar and element processing
    • Spline subsystem
    • Vector subsystem
    • Geometry, text and drawing
    • Image and bitmap handling
    • Named-font changes
    • SVG output
    • PostScript output
    • Windows drawing backend
    • Windows rendering performance
    • Remaining private Tk dependencies
    • C safety and hardening
    • Bindings and tags
    • Regression testing
  • Remaining compatibility interfaces
• ::rbc
  • Commands
    • AXIS
    • AXIS bind
    • AXIS cget
    • AXIS configure
    • AXIS create
    • AXIS delete
    • AXIS get
    • AXIS invtransform
    • AXIS limits
    • AXIS names
    • AXIS transform
    • AXIS view
    • barchart
    • CROSSHAIRS
    • CROSSHAIRS cget
    • CROSSHAIRS configure
    • CROSSHAIRS off
    • CROSSHAIRS on
    • CROSSHAIRS toggle
    • ELEMENT
    • ELEMENT activate
    • ELEMENT bind
    • ELEMENT cget
    • ELEMENT closest
    • ELEMENT configure
    • ELEMENT create
    • ELEMENT deactivate
    • ELEMENT delete
    • ELEMENT exists
    • ELEMENT get
    • ELEMENT names
    • ELEMENT show
    • ELEMENT type
    • graph
    • GRAPHINST
    • GRAPHINST axis
    • GRAPHINST bar
    • GRAPHINST cget
    • GRAPHINST configure
    • GRAPHINST crosshairs
    • GRAPHINST element
    • GRAPHINST extents
    • GRAPHINST grid
    • GRAPHINST inside
    • GRAPHINST invtransform
    • GRAPHINST legend
    • GRAPHINST line
    • GRAPHINST marker
    • GRAPHINST pen
    • GRAPHINST postscript
    • GRAPHINST snap
    • GRAPHINST svg
    • GRAPHINST transform
    • GRAPHINST x2axis
    • GRAPHINST xaxis
    • GRAPHINST y2axis
    • GRAPHINST yaxis
    • GRID
    • GRID cget
    • GRID configure
    • GRID off
    • GRID on
    • GRID toggle
    • LEGEND
    • LEGEND activate
    • LEGEND bind
    • LEGEND cget
    • LEGEND configure
    • LEGEND deactivate
    • LEGEND get
    • MARGINAXIS
    • MARGINAXIS bind
    • MARGINAXIS cget
    • MARGINAXIS configure
    • MARGINAXIS invtransform
    • MARGINAXIS limits
    • MARGINAXIS transform
    • MARGINAXIS use
    • MARKER
    • MARKER after
    • MARKER before
    • MARKER bind
    • MARKER cget
    • MARKER configure
    • MARKER create
    • MARKER delete
    • MARKER exists
    • MARKER find
    • MARKER get
    • MARKER names
    • MARKER type
    • PEN
    • PEN cget
    • PEN configure
    • PEN create
    • PEN delete
    • PEN names
    • PEN type
    • polar
    • POSTSCRIPT
    • POSTSCRIPT cget
    • POSTSCRIPT configure
    • POSTSCRIPT output
    • spline
    • spline natural
    • spline parametric
    • spline quadratic
    • stripchart
    • SVG
    • SVG cget
    • SVG configure
    • SVG output
    • VECINST
    • VECINST *
    • VECINST +
    • VECINST -
    • VECINST /
    • VECINST append
    • VECINST binread
    • VECINST clear
    • VECINST delete
    • VECINST dup
    • VECINST expr
    • VECINST index
    • VECINST length
    • VECINST merge
    • VECINST normalize
    • VECINST offset
    • VECINST populate
    • VECINST random
    • VECINST range
    • VECINST search
    • VECINST seq
    • VECINST set
    • VECINST sort
    • VECINST split
    • VECINST type
    • VECINST variable
    • vector
    • vector create
    • vector destroy
    • vector expr
    • vector names
    • winop
    • winop changes
    • winop colormap
    • winop convolve
    • winop image
    • winop lower
    • winop map
    • winop move
    • winop quantize
    • winop query
    • winop raise
    • winop readjpeg
    • winop resample
    • winop snap
    • winop subsample
    • winop unmap
    • winop warpto
    • WINOPIMAGE
    • WINOPIMAGE convolve
    • WINOPIMAGE gradient
    • WINOPIMAGE readjpeg
    • WINOPIMAGE resample
    • WINOPIMAGE rotate
    • WINOPIMAGE snap
    • WINOPIMAGE subsample
• graphtoolbar
  • Basic example
  • Control surfaces
  • Zooming and navigation
  • Wheel zoom
  • Panning
  • Cross-interactions
  • Crosshairs
    • Refreshing beneath a stationary pointer
    • Refresh scheduling
    • Streaming graphs
  • Coordinate marker formats
  • Custom closest-point text
  • Polar and Smith interaction
  • Active legend
  • Public megawidget access
  • Reserved internal names
  • Tk option database
    • Zoom option-database resources
    • Crosshair option-database resources
  • Styling example
  • Classes
    • graphtoolbar
      • constructor
      • destructor
      • getAxisActiveScale
      • graph
      • names
      • setAxisActiveScale
      • subwidget
      • widgetcommand
• Graph widget instance GRAPHINST command
  • Margins
  • Plotting area
  • Aspect ratio
  • Layout
  • Coordinate systems
  • Polar and Smith charts
    • Automatic equal-unit aspect
    • Polar grid
    • Polar autoscaling without visible elements
    • Smith representation
    • Smith labels during zooming
    • Custom Smith labels
    • Polar/Smith mapped axes
    • Limitations and domain rules
    • Polar/Smith widget options
  • Rendering backend
  • Widget options
  • Tk option database
    • Component resource names and classes
    • When option database values are applied
    • Discovering database names and classes
  • Bar modes
  • Buffering
  • SVG output
  • Named fonts and display scaling
  • Numeric values and expressions
  • Application data
  • Graph change notification
    • Geometry event delivery and data
    • Scope
  • Axis change notifications
    • Axis event delivery and data
• Graph virtual axis AXIS command
  • Virtual axes
  • Axis ranges
  • Automatic sliding ranges
  • Logarithmic axes
  • Major and minor ticks
  • Tick labels
  • Axis limits display
  • Axis scrolling
  • Axis bindings
  • Axis options
• Graph margin axis MARGINAXIS command
  • Logical and physical margins
  • Assigned axes
  • Axis configuration
  • Coordinate conversion
• Graph element ELEMENT command
  • Element names
  • Element data and axes
  • Display list
  • Active elements and points
  • Element bindings
  • Finding the closest element
  • Element types
• Line element LINEELEMENT options
  • Data
    • Parameter mapping
  • Axis mapping
  • Line drawing
  • Smoothing
  • Trace direction
  • Display decimation for large data sets
    • Decimation principle
    • When automatic decimation is used
    • Fallback behavior
    • Updates to vector data
    • Interaction with -reduce
  • Point reduction
  • Symbols
  • Error bars of line elements
  • Value labels of line elements
    • Value-label position
    • Custom value-label text
  • Pens, weights, and styles
  • Area under the line
  • Line element options
• Strip element STRIPELEMENT options
  • Differences from line elements
  • Data
  • Display decimation
  • Smoothing
  • Pens and symbols
  • Error bars of strip elements
  • Value labels of strip elements
  • Weights and styles
  • Strip element options
• Polar element POLARELEMENT options
  • Creating a polar element
  • Cartesian data
  • Complex-vector data
  • Selecting the active data source
  • Real input coordinates
  • Parameter mapping
  • Complex data formats
    • Gamma
    • Impedance
    • Admittance
  • Reference impedance
  • Singular conversions and trace gaps
  • Smoothing
  • Axis mapping
  • Data outside the Smith unit circle
  • Closest-point information
  • PostScript output
  • Polar element options
• Bar element BARELEMENT options
  • Data
  • Axis mapping
  • Bar geometry
  • Bar width
  • Bar modes
  • Stacked bars
  • Appearance
  • Pens
  • Error bars of bar elements
  • Value labels of bar elements
  • Weights and styles
  • Logarithmic axes
  • Closest searches
    • Bar element options
• Graph pen PEN command
  • Pen types
  • Built-in active pens
  • Using named pens
  • Pen lifetime
  • Line pens
    • Traces
    • Symbols
    • Error bars of line element pen
    • Value labels of line element pen
    • Line pen options
  • Bar pens
    • Bar appearance
    • Error bars of bar element pen
    • Value labels of bar element pen
    • Bar pen options
  • Option database
• Graph marker MARKER command
  • Marker coordinates
  • Drawing order
  • Element association
  • Marker bindings
  • Marker types and options
    • Common marker options
    • Bitmap marker options
    • Image marker options
    • Line marker options
  • Arrowheads
    • Polygon marker options
    • Text marker options
    • Window marker options
  • Option database
• Graph legend LEGEND command
  • Legend entries
  • Legend position
  • Legend layout
  • Active entries
  • Legend bindings
  • Legend options
• Graph grid GRID command
  • Grid axes
  • Major and minor grid lines
  • Showing and hiding the grid
  • Widget-specific defaults
  • Grid options
• Graph crosshairs CROSSHAIRS command
  • Crosshair position
    • Crosshairs when the graph changes
  • Showing and hiding crosshairs
  • Crosshair appearance
  • Crosshairs options
• Graph PostScript POSTSCRIPT command
  • Generating PostScript
  • Output size
  • Centering and orientation
  • Color modes
  • Color maps
  • Font maps
  • Decorations
  • Footer
  • Preview images
  • PostScript options
• Graph SVG SVG command
  • Generating SVG
  • SVG options
  • Supported content and limitations
  • Commands
    • cget
    • configure
    • output
• vector command
  • Vector types
  • Graph and spline integration
  • Vector creation forms
  • Vector instances
• Vector instance VECINST command
  • Vector indices
  • Complex vector operations
  • Vector expressions
    • Scalars and vectors
    • Operators
    • Circular shifts
    • Complex expression operators
    • Mathematical functions
      • Component functions
      • Scalar functions
      • Vector functions
      • Mathematical functions on complex vectors
    • Expression results
  • C language API
    • Vector representation
    • Public vector functions
    • Reading vector data
    • Updating vectors from C
    • Replacing vector storage
    • Creating vectors from C
    • Resizing a vector
    • Testing for a vector
    • Destroying a vector
    • Compatibility with older Rbc vector APIs
• Spline interpolation
  • Scalar spline interface
  • Parametric complex interface
    • Scalar source data
    • Scalar evaluation coordinates
    • Generating scalar evaluation coordinates
    • Parametric source data
    • Parametric natural cubic spline
    • Parametric quadratic spline
    • Output vectors and transaction behavior
    • Scalar natural cubic spline
    • Scalar shape-preserving quadratic spline
    • Errors
    • Graph smoothing
    • References
• winop command
  • Command layout
  • Window operations
    • Mapping and stacking
    • Pointer position
  • Window snapshots
  • Photo-image operations
    • Convolution
    • Color quantization
    • JPEG input
    • Image resampling
    • Subsampling
  • Platform differences
• Winop image WINOPIMAGE command
  • Gradients
  • Rotation
• Index