fpdf

type AnchorPoint struct {
	geo.NamedLatlong
	AltitudeMin float64
	AltitudeMax float64 // if max uninitialized, no checks performed
	DistMaxKM   float64 // if non-zero, must be at least this close, or we skip flight
}

type BaseGrid struct {
	*gofpdf.Fpdf // Embed the thing we're writing to

	// Describe the portion of PDF page space the grid will be drawn over (labels go outside of this)
	OffsetU float64 // where the origin (top-right) should be, in PDF coords (top-right)
	OffsetV float64 // where the origin (top-right) should be, in PDF coords (top-right)
	W, H    float64 // width and height of the grid, in PDF units (should be mm)

	// Control how (x,y) vals are mapped into (u,v) vals
	InvertX, InvertY       bool    // A grid's origin defaults to bottom-left; these bools flip that
	MinX, MinY, MaxX, MaxY float64 // the range of values that should be scaled onto the grid.
	Clip                   bool    // whether to clip lines to fit inside grid

	// How to draw gridlines
	NoGridlines                              bool    // No lines at all for this graph
	XGridlineEvery, YGridlineEvery           float64 // From Min[XY] to Max[XY]
	XMinorGridlineEvery, YMinorGridlineEvery float64 // From Min[XY] to Max[XY]
	XTickFmt, YTickFmt                       string  // Will be passed a float64 via fmt.Sprintf; blank==none
	XTickOtherSide, YTickOtherSide           bool    // Note that InvertX,Y also affect where ticks go

	XOriginTickFmt, YOriginTickFmt string // Tick formats for the zero origin label

	// Other formatting
	LineColor []int // rgb, each [0,255] - axis labels
}

type ColorScheme int

type DescentPdf struct {
	ToShow map[string]bool // Which grids to render

	AltitudeMin float64
	AltitudeMax float64

	Anchor            geo.NamedLatlong
	AnchorAltitudeMin float64
	AnchorAltitudeMax float64

	LengthNM        float64
	AveragingWindow time.Duration
	ColorScheme     // embedded

	LineThickness float64
	LineOpacity   float64 // 0.0==transparent, 1.0==opaque

	Grids        map[string]*BaseGrid
	*gofpdf.Fpdf // Embedded pointer

	Permalink string
	Caption   string
	Debug     string
	ShowDebug bool
}

type DistanceFunc func(tp fdb.Trackpoint) (float64, float64, []int)

type ProjectAlongPath struct {
	// contains filtered or unexported fields
}

type ProjectAsCrowFlies struct {
	// contains filtered or unexported fields
}

type SideviewPdf struct {
	ToShow map[string]bool // Which grids to render
	Grids  map[string]*BaseGrid

	AltitudeMin     float64 // Min/max for the altitude and distance axes
	AltitudeMax     float64
	AnchorDistMinNM float64
	AnchorDistMaxNM float64

	AnchorPoint    // embedded
	TrackProjector // embedded

	AveragingWindow time.Duration

	ColorScheme   // embedded
	LineThickness float64
	LineOpacity   float64 // 0.0==transparent, 1.0==opaque (>1 is a thickness)

	*gofpdf.Fpdf // embedded

	Permalink    string
	MapPermalink string
	Caption      string
	Debug        string
	ShowDebug    bool
}

type TrackProjector interface {
	Setup(fdb.Track, AnchorPoint) error
	Project(fdb.Trackpoint) (distNM float64, alt float64)
	Description() string
}

type WaypointFurniture struct {
	Name     string
	Min, Max float64
}