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Overview
Comment:better fixes for ticket [36481a3e08]
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: d5b30d3ec3e095cdc4cdd9a0a1829dd71a4a5065
User & Date: chw 2019-07-10 04:34:06
References
2019-07-10
04:35 Ticket [36481a3e08] Make tkp::matrix::rotate accept angles in degrees too status still Review with 3 other changes artifact: f78a79d900 user: chw
Context
2019-07-10
13:05
reapplied patch for ticket [36481a3e08] check-in: e95304b5ba user: chw tags: trunk
04:34
better fixes for ticket [36481a3e08] check-in: d5b30d3ec3 user: chw tags: trunk
2019-07-08
09:12
improve double-click handler in TSB check-in: 4fec6e8cc6 user: chw tags: trunk
Changes

Changes to jni/tkpath/library/tkpath.tcl.

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#	angle	Angle in radians or degrees (with "d" suffix)
#	cx	X-center coordinate
#	cy	Y-center coordinate
# Results:
#       The transformation matrix.
proc ::tkp::matrix::rotate {angle {cx 0} {cy 0}} {
    if {[string match "*d" $angle]} {
	set angle [expr {[string range $angle 0 end-1] / 45.0 * atan(1)}]
    }
    set myCos [expr {cos($angle)}]
    set mySin [expr {sin($angle)}]
    if {$cx == 0 && $cy == 0} {
	return [list [list $myCos $mySin] [list [expr {-1.*$mySin}] $myCos] {0 0}]
    }
    return [list [list $myCos $mySin] [list [expr {-1.*$mySin}] $myCos] \
................................................................................
# Arguments:
#	fx	1 no flip, -1 horizontal flip
#	fy	1 no flip, -1 vertical flip
# Results:
#       The transformation matrix.
proc ::tkp::matrix::flip {{cx 0} {cy 0} {fx 1} {fy 1}} {
    return [list [list $fx 0] [list 0 $fy] \
	[list [expr {$cx*(1-$fx)}] [expr {$cy*($fy-1)}]]]
}

# ::tkp::matrix::rotateflip --
# Arguments:
#	angle	Angle in radians or degrees (with "d" suffix)
#	cx	X-center coordinate
#	cy	Y-center coordinate
#	fx	1 no flip, -1 horizontal flip
#	fy	1 no flip, -1 vertical flip
# Results:
#       The transformation matrix.
proc ::tkp::matrix::rotateflip {{angle 0} {cx 0} {cy 0} {fx 1} {fy 1}} {
    if {[string match "*d" $angle]} {
	set angle [expr {[string range $angle 0 end-1] / 45.0 * atan(1)}]
    }
    set myCos [expr {cos($angle)}]
    set mySin [expr {sin($angle)}]
    if {$cx == 0 && $cy == 0} {
	return [list [list [expr {$fx*$myCos}] [expr {$fx*$mySin}]] \
	    [list [expr {-1.*$mySin*$fy}] [expr {$myCos*$fy}]] {0 0}]
    }
    return [list [list [expr {$fx*$myCos}] [expr {$fx*$mySin}]] \
	[list [expr {-1.*$mySin*$fy}] [expr {$myCos*$fy}]] \
        [list \
       	[expr {$myCos*$cx*(1.-$fx) - $mySin*$cy*($fy-1.) + $cx - $myCos*$cx + $mySin*$cy}] \
        [expr {$mySin*$cx*(1.-$fx) + $myCos*$cy*($fy-1.) + $cy - $mySin*$cx - $myCos*$cy}] \
	]]

}

# ::tkp::matrix::skewx --
# Arguments:
#	angle	Angle in radians or degrees (with "d" suffix)
# Results:
#       The transformation matrix.
proc ::tkp::matrix::skewx {angle} {
    if {[string match "*d" $angle]} {
	set angle [expr {[string range $angle 0 end-1] / 45.0 * atan(1)}]
    }
    return [list {1 0} [list [expr {tan($angle)}] 1] {0 0}]
}

# ::tkp::matrix::skewy --
# Arguments:
#	angle	Angle in radians or degrees (with "d" suffix)
# Results:
#       The transformation matrix.
proc ::tkp::matrix::skewy {angle} {
    if {[string match "*d" $angle]} {
	set angle [expr {[string range $angle 0 end-1] / 45.0 * atan(1)}]
    }
    return [list [list 1 [expr {tan($angle)}]] {0 1} {0 0}]
}

# ::tkp::matrix::move --
# Arguments:
#	dx	Difference in x direction
................................................................................
#	cy	center y coordinate
#	a	angle in radians or degrees (with "d" suffix)
#	d ...	distances
# Results:
#	Return points at given distances on a ray from center x,y to angle a.
proc ::tkp::path::cg::xyad2p {cx cy a d args} {
    if {[string match "*d" $a]} {
	set a [expr {[string range $a 0 end-1] / 45.0 * atan(1)}]
    }
    lmap d [concat $d $args] {
	list [expr {$cx + $d * cos($a)}] [expr {$cy - $d * sin($a)}]
    }
}

# ::tkp::path::cg::xyra2p
................................................................................
#	cy	center y coordinate
#	r	radius
#	a	angle in radians or degrees (with "d" suffix)
# Results:
#	Return points forming angle a on a circle with radius r.
proc ::tkp::path::cg::xyra2p {cx cy r a args} {
    if {[string match "*d" $a]} {
	set a [expr {[string range $a 0 end-1] / 45.0 * atan(1)}]
    }
    lmap a [concat $a $args] {
	list [expr {$cx + $r * cos($a)}] [expr {$cy - $r * sin($a)}]
    }
}

# ::tkp::path::ellipse --







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#	angle	Angle in radians or degrees (with "d" suffix)
#	cx	X-center coordinate
#	cy	Y-center coordinate
# Results:
#       The transformation matrix.
proc ::tkp::matrix::rotate {angle {cx 0} {cy 0}} {
    if {[string match "*d" $angle]} {
	set angle [expr {[string range $angle 0 end-1] / 0.017453292519943295}]
    }
    set myCos [expr {cos($angle)}]
    set mySin [expr {sin($angle)}]
    if {$cx == 0 && $cy == 0} {
	return [list [list $myCos $mySin] [list [expr {-1.*$mySin}] $myCos] {0 0}]
    }
    return [list [list $myCos $mySin] [list [expr {-1.*$mySin}] $myCos] \
................................................................................
# Arguments:
#	fx	1 no flip, -1 horizontal flip
#	fy	1 no flip, -1 vertical flip
# Results:
#       The transformation matrix.
proc ::tkp::matrix::flip {{cx 0} {cy 0} {fx 1} {fy 1}} {
    return [list [list $fx 0] [list 0 $fy] \
	[list [expr {$cx*(1.-$fx)}] [expr {$cy*(1.-$fy)}]]]
}

# ::tkp::matrix::rotateflip --
# Arguments:
#	angle	Angle in radians or degrees (with "d" suffix)
#	cx	X-center coordinate
#	cy	Y-center coordinate
#	fx	1 no flip, -1 horizontal flip
#	fy	1 no flip, -1 vertical flip
# Results:
#       The transformation matrix.
proc ::tkp::matrix::rotateflip {{angle 0} {cx 0} {cy 0} {fx 1} {fy 1}} {
    if {[string match "*d" $angle]} {
	set angle [expr {[string range $angle 0 end-1] / 0.017453292519943295}]
    }
    set myCos [expr {cos($angle)}]
    set mySin [expr {sin($angle)}]
    if {$cx == 0 && $cy == 0} {
	return [list [list [expr {$fx*$myCos}] [expr {$fx*$mySin}]] \
	    [list [expr {-1.*$mySin*$fy}] [expr {$myCos*$fy}]] {0 0}]
    }
    return [list [list [expr {$fx*$myCos}] [expr {$fx*$mySin}]] \
	[list [expr {-1.*$mySin*$fy}] [expr {$myCos*$fy}]] \
        [list \
       	[expr {$myCos*$cx*(1.-$fx) - $mySin*$cy*(1.-$fy) + $cx - $myCos*$cx + $mySin*$cy}] \
        [expr {$mySin*$cx*(1.-$fx) + $myCos*$cy*(1.-$fy) + $cy - $mySin*$cx - $myCos*$cy}] \
	]]

}

# ::tkp::matrix::skewx --
# Arguments:
#	angle	Angle in radians or degrees (with "d" suffix)
# Results:
#       The transformation matrix.
proc ::tkp::matrix::skewx {angle} {
    if {[string match "*d" $angle]} {
	set angle [expr {[string range $angle 0 end-1] / 0.017453292519943295}]
    }
    return [list {1 0} [list [expr {tan($angle)}] 1] {0 0}]
}

# ::tkp::matrix::skewy --
# Arguments:
#	angle	Angle in radians or degrees (with "d" suffix)
# Results:
#       The transformation matrix.
proc ::tkp::matrix::skewy {angle} {
    if {[string match "*d" $angle]} {
	set angle [expr {[string range $angle 0 end-1] / 0.017453292519943295}]
    }
    return [list [list 1 [expr {tan($angle)}]] {0 1} {0 0}]
}

# ::tkp::matrix::move --
# Arguments:
#	dx	Difference in x direction
................................................................................
#	cy	center y coordinate
#	a	angle in radians or degrees (with "d" suffix)
#	d ...	distances
# Results:
#	Return points at given distances on a ray from center x,y to angle a.
proc ::tkp::path::cg::xyad2p {cx cy a d args} {
    if {[string match "*d" $a]} {
	set a [expr {[string range $a 0 end-1] / 0.017453292519943295}]
    }
    lmap d [concat $d $args] {
	list [expr {$cx + $d * cos($a)}] [expr {$cy - $d * sin($a)}]
    }
}

# ::tkp::path::cg::xyra2p
................................................................................
#	cy	center y coordinate
#	r	radius
#	a	angle in radians or degrees (with "d" suffix)
# Results:
#	Return points forming angle a on a circle with radius r.
proc ::tkp::path::cg::xyra2p {cx cy r a args} {
    if {[string match "*d" $a]} {
	set a [expr {[string range $a 0 end-1] / 0.017453292519943295}]
    }
    lmap a [concat $a $args] {
	list [expr {$cx + $r * cos($a)}] [expr {$cy - $r * sin($a)}]
    }
}

# ::tkp::path::ellipse --