1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
#!/usr/bin/env tclsh
## -*- tcl -*-
package require Tk
# test_axis.tcl --
# Test the drawing of the axis: nice rounded values?
# And vertical text to right axis?
#
# NOTE:
# Negative values require floor() instead of ceil()!
#
# NOTE:
# Problem with right axis!
#
# TODO:
# Floor and Ceil and less stringent check for bounds!
#
package require crosshair
package require Plotchart
grid [canvas .c1] [canvas .c2]
grid [canvas .c3] [canvas .c4]
grid [canvas .c5] [canvas .c6]
grid [canvas .c7] [canvas .c8]
#
# Create the plots
#
set plot_axes [list { 0.12 10.4 1.0} {-0.12 10.4 2.5} \
{10.12 -10.4 -2.0} {-5.1 -4.5 0.1} \
{-0.12 10.4 2.5} { 0.12 10.4 1.0} \
{-5.1 -4.5 0.1} {10.12 -10.4 -2.0} \
{ 0.12 10.4 1.0} {-0.12 10.4 2.5} \
{10.12 -10.4 -2.0} {-5.1 -4.5 0.1} \
{-0.12 10.4 2.5} { 0.12 10.4 1.0} \
{-5.1 -4.5 0.1} {10.12 -10.4 -2.0}]
set i 1
foreach {x y} $plot_axes {
set p($i) [::Plotchart::createXYPlot .c${i} $x $y]
incr i
}
# Adding crosshairs to the plots
set i 1
array set color {1 blue 2 red 3 green 4 black 5 blue 6 red 7 green 8 black}
foreach {x y} $plot_axes {
.c${i} configure -cursor tcross
crosshair::crosshair .c$i -dash {.} -fill $color($i)
crosshair::track on .c$i put_coords
set bbox_ll [::Plotchart::coordsToPixel [$p($i) canvas] [lindex $x 0] [lindex $y 0]]
set bbox_ur [::Plotchart::coordsToPixel [$p($i) canvas] [lindex $x 1] [lindex $y 1]]
#--- testing coordinate mixed up
if {$i==0} {
set bbox [concat $bbox_ll $bbox_ur]
} elseif {$i==1} {
set bbox [list [lindex $bbox_ur 0] [lindex $bbox_ll 1] [lindex $bbox_ll 0] [lindex $bbox_ur 1]]
} elseif {$i==2} {
set bbox [list [lindex $bbox_ll 0] [lindex $bbox_ur 1] [lindex $bbox_ur 0] [lindex $bbox_ll 1]]
} else {
set bbox [concat $bbox_ur $bbox_ll]
}
crosshair::bbox_add .c$i "$bbox"
puts "plot $i ==> bbox== $bbox color = $color($i)"
incr i
}
#--- Testing crosshairs with scaling on the bottom 4 plots.
.c5 scale all 0 0 0.50 0.50
.c6 scale all 0 0 0.50 0.75
.c7 scale all 0 0 1.00 1.00
.c8 scale all 0 0 2.00 1.50
proc put_coords {a b c d e f g} {
set pcoords [::Plotchart::pixelToCoords $a $b $c]
set pcoord_x [lindex $pcoords 0]
set pcoord_y [lindex $pcoords 1]
puts "Canvas=$a Canvas_Coords=($b $c) PlotChart_plot_coords=([format "%.2f %.2f" $pcoord_x $pcoord_y])"
}
catch { console show }
|
