diff options
Diffstat (limited to 'Perl/demos')
| -rw-r--r-- | Perl/demos/Tk/demos/zinc_lib/curve_bezier.pl | 191 | ||||
| -rw-r--r-- | Perl/demos/zinc-demos | 1 |
2 files changed, 192 insertions, 0 deletions
diff --git a/Perl/demos/Tk/demos/zinc_lib/curve_bezier.pl b/Perl/demos/Tk/demos/zinc_lib/curve_bezier.pl new file mode 100644 index 0000000..0d57306 --- /dev/null +++ b/Perl/demos/Tk/demos/zinc_lib/curve_bezier.pl @@ -0,0 +1,191 @@ +#!/usr/bin/perl -w +# $Id$ +# This simple demo has been developped by C. Mertz <mertz@cena.fr> + +####### This file has been inspired from svg examples + +use Tk::Zinc; + + +my $mw = MainWindow->new(); +$mw->title('example of curves with cubic control points'); + +my $text = $mw->Text (-relief => 'sunken', -borderwidth => 2, + -setgrid => 'true', -height =>2); +$text->pack(qw/-expand yes -fill both/); + +$text->insert('0.0', +'6 examples of curves containig control points are displayed, + with the list of control points written just below.'); + + +my $zinc = $mw->Zinc(-width => 700, -height => 650, + -font => "10x20", + -font => "9x15", + -borderwidth => 0, + -backcolor => "white", + -forecolor => "grey50", + )->pack; + +my $group = $zinc->add('group', 1); + +$zinc->add('text',$group, -position => [50,20], -anchor => 'w', + -text => "Examples of curve items using cubic bezier control points", + -color => "grey20"); + +$zinc->add('text',$group, -position => [25,270], -anchor => 'w', + -text => "[ [100, 200], [100, 100, 'c'],\n [400, 100, 'c'], [400, 200] ]"); +$zinc->add('curve',$group,[100, 200, 100, 100], -tags => ['polyline'], -linecolor => "#888888", -filled => 0, -linewidth => 2); +$zinc->add('curve',$group,[400, 100, 400, 200], -tags => ['polyline'], -linecolor => "#888888", -filled => 0, -linewidth => 2); +$zinc->add('curve',$group,[[100, 200], [100, 100, 'c'], [400, 100, 'c'], [400, 200]], + -tags => ['curve_bezier'], -filled => 1, -closed => 0, -linecolor => "red", -filled => 0, -linewidth => 5); +$zinc->add('arc',$group,[90, 190, 110, 210], -tags => ['circle'], -filled => 1, -linecolor => "#888888", -filled => 0, -linewidth => 2); +$zinc->add('arc',$group,[90, 90, 110, 110], -tags => ['circle'], -filled => 1, -linewidth => 0, -fillcolor => "#888888", -filled => 1); +$zinc->add('arc',$group,[390, 90, 410, 110], -tags => ['circle'], -filled => 1, -linewidth => 0, -fillcolor => "#888888", -filled => 1); +$zinc->add('arc',$group,[390, 190, 410, 210], -tags => ['circle'], -filled => 1, -linecolor => "#888888", -filled => 0, -linewidth => 2); + +$zinc->add('text',$group, -position => [570,270], -anchor => 'w', + -text => "[ [600, 200], [675, 100, 'c'],\n [975, 100, 'c'], [900, 200] ]"); +$zinc->add('curve',$group,[600, 200, 675, 100], -tags => ['polyline'], -linecolor => "#888888", -filled => 0, -linewidth => 2); +$zinc->add('curve',$group,[975, 100, 900, 200], -tags => ['polyline'], -linecolor => "#888888", -filled => 0, -linewidth => 2); +$zinc->add('curve',$group,[[600, 200], [675, 100, 'c'], [975, 100, 'c'], [900, 200]], + -tags => ['curve_bezier'], -filled => 1, -closed => 0, -linecolor => "red", -filled => 0, -linewidth => 5); +$zinc->add('arc',$group,[590, 190, 610, 210], -tags => ['circle'], -filled => 1, -linecolor => "#888888", -filled => 0, -linewidth => 2); +$zinc->add('arc',$group,[665, 90, 685, 110], -tags => ['circle'], -filled => 1, -linewidth => 0, -fillcolor => "#888888", -filled => 1); +$zinc->add('arc',$group,[965, 90, 985, 110], -tags => ['circle'], -filled => 1, -linewidth => 0, -fillcolor => "#888888", -filled => 1); +$zinc->add('arc',$group,[890, 190, 910, 210], -tags => ['circle'], -filled => 1, -linecolor => "#888888", -filled => 0, -linewidth => 2); + +$zinc->add('text',$group, -position => [25,570], -anchor => 'w', + -text => "[ [100, 500], [25, 400, 'c'],\n [475, 400, 'c'], [400, 500] ]"); +$zinc->add('curve',$group,[100, 500, 25, 400], -tags => ['polyline'], -linecolor => "#888888", -filled => 0, -linewidth => 2); +$zinc->add('curve',$group,[475, 400, 400, 500], -tags => ['polyline'], -linecolor => "#888888", -filled => 0, -linewidth => 2); +$zinc->add('curve',$group,[[100, 500], [25, 400, 'c'], [475, 400, 'c'], [400, 500]], + -tags => ['curve_bezier'], -filled => 1, -closed => 0, -linecolor => "red", -filled => 0, -linewidth => 5); +$zinc->add('arc',$group,[90, 490, 110, 510], -tags => ['circle'], -filled => 1, -linecolor => "#888888", -filled => 0, -linewidth => 2); +$zinc->add('arc',$group,[15, 390, 35, 410], -tags => ['circle'], -filled => 1, -linewidth => 0, -fillcolor => "#888888", -filled => 1); +$zinc->add('arc',$group,[465, 390, 485, 410], -tags => ['circle'], -filled => 1, -linewidth => 0, -fillcolor => "#888888", -filled => 1); +$zinc->add('arc',$group,[390, 490, 410, 510], -tags => ['circle'], -filled => 1, -linecolor => "#888888", -filled => 0, -linewidth => 2); + +$zinc->add('text',$group, -position => [570,570], -tags => ['text'], -anchor => 'w', -text => "[ [600, 500], [600, 350, 'c'],\n [900, 650, 'c'], [900, 500] ]"); +$zinc->add('curve',$group,[600, 500, 600, 350], -tags => ['polyline'], -linecolor => "#888888", -filled => 0, -linewidth => 2); +$zinc->add('curve',$group,[900, 650, 900, 500], -tags => ['polyline'], -linecolor => "#888888", -filled => 0, -linewidth => 2); +$zinc->add('curve',$group,[[600, 500], [600, 350, 'c'], [900, 650, 'c'], [900, 500]], -tags => ['curve_bezier'], -filled => 1, -closed => 0, -linecolor => "red", -filled => 0, -linewidth => 5); +$zinc->add('arc',$group,[590, 490, 610, 510], -tags => ['circle'], -filled => 1, -linecolor => "#888888", -filled => 0, -linewidth => 2); +$zinc->add('arc',$group,[590, 340, 610, 360], -tags => ['circle'], -filled => 1, -linewidth => 0, -fillcolor => "#888888", -filled => 1); +$zinc->add('arc',$group,[890, 640, 910, 660], -tags => ['circle'], -filled => 1, -linewidth => 0, -fillcolor => "#888888", -filled => 1); +$zinc->add('arc',$group,[890, 490, 910, 510], -tags => ['circle'], -filled => 1, -linecolor => "#888888", -filled => 0, -linewidth => 2); + +$zinc->add('text',$group, -position => [25,870], -tags => ['text'], -anchor => 'w', + -text => "[ [100, 800], [175, 700, 'c'],\n [325, 700, 'c'], [400, 800] ]"); +$zinc->add('curve',$group,[100, 800, 175, 700], -tags => ['polyline'], -linecolor => "#888888", -filled => 0, -linewidth => 2); +$zinc->add('curve',$group,[325, 700, 400, 800], -tags => ['polyline'], -linecolor => "#888888", -filled => 0, -linewidth => 2); +$zinc->add('curve',$group,[[100, 800], [175, 700, 'c'], [325, 700, 'c'], [400, 800]], + -tags => ['curve_bezier'], -filled => 1, -closed => 0, -linecolor => "red", -filled => 0, -linewidth => 5); +$zinc->add('arc',$group,[90, 790, 110, 810], -tags => ['circle'], -filled => 1, -linecolor => "#888888", -filled => 0, -linewidth => 2); +$zinc->add('arc',$group,[165, 690, 185, 710], -tags => ['circle'], -filled => 1, -linewidth => 0, -fillcolor => "#888888", -filled => 1); +$zinc->add('arc',$group,[315, 690, 335, 710], -tags => ['circle'], -filled => 1, -linewidth => 0, -fillcolor => "#888888", -filled => 1); +$zinc->add('arc',$group,[390, 790, 410, 810], -tags => ['circle'], -filled => 1, -linecolor => "#888888", -filled => 0, -linewidth => 2); + +$zinc->add('text',$group, -position => [570,980], -tags => ['text'], -anchor => 'w', + -text => "[ [600, 800], [625, 700, 'c'],\n [725, 700, 'c'], [750, 800],\n [775, 900, 'c'], [875, 900, 'c'],\n [900, 800] ]"); +$zinc->add('curve',$group,[600, 800, 625, 700], -tags => ['polyline'], -linecolor => "#888888", -filled => 0, -linewidth => 2); +$zinc->add('curve',$group,[725, 700, 750, 800], -tags => ['polyline'], -linecolor => "#888888", -filled => 0, -linewidth => 2); +$zinc->add('curve',$group,[750, 800, 775, 900], -tags => ['polyline'], -linecolor => "#888888", -filled => 0, -linewidth => 2); +$zinc->add('curve',$group,[875, 900, 900, 800], -tags => ['polyline'], -linecolor => "#888888", -filled => 0, -linewidth => 2); +$zinc->add('curve',$group,[[600, 800], [625, 700, 'c'], [725, 700, 'c'], [750, 800], [775, 900, 'c'], [875, 900, 'c'], [900, 800]], + -tags => ['curve_bezier'], -filled => 1, -closed => 0, -linecolor => "red", -filled => 0, -linewidth => 5); +$zinc->add('arc',$group,[590, 790, 610, 810], -tags => ['circle'], -filled => 1, -linecolor => "#888888", -filled => 0, -linewidth => 2); +$zinc->add('arc',$group,[615, 690, 635, 710], -tags => ['circle'], -filled => 1, -linewidth => 0, -fillcolor => "#888888", -filled => 1); +$zinc->add('arc',$group,[715, 690, 735, 710], -tags => ['circle'], -filled => 1, -linewidth => 0, -fillcolor => "#888888", -filled => 1); +$zinc->add('arc',$group,[740, 790, 760, 810], -tags => ['circle'], -filled => 1, -linecolor => "#888888", -filled => 0, -linewidth => 2); +$zinc->add('arc',$group,[766, 891, 784, 909], -tags => ['circle'], -filled => 1, -linecolor => "blue", -filled => 0, -linewidth => 4); +$zinc->add('arc',$group,[865, 890, 885, 910], -tags => ['circle'], -filled => 1, -linewidth => 0, -fillcolor => "#888888", -filled => 1); +$zinc->add('arc',$group,[890, 790, 910, 810], -tags => ['circle'], -filled => 1, -linecolor => "#888888", -filled => 0, -linewidth => 2); + +$zinc->scale($group, 0.6, 0.6); + + + +### on ajoute quelques binding bien pratiques pour la mise au point + +$zinc->Tk::bind('<ButtonPress-1>', [\&press, \&motion]); +$zinc->Tk::bind('<ButtonRelease-1>', [\&release]); +$zinc->Tk::bind('<ButtonPress-2>', [\&press, \&zoom]); +$zinc->Tk::bind('<ButtonRelease-2>', [\&release]); + +# $zinc->Tk::bind('<ButtonPress-3>', [\&press, \&mouseRotate]); +# $zinc->Tk::bind('<ButtonRelease-3>', [\&release]); +$zinc->bind('all', '<Enter>', + [ sub { my ($z)=@_; my $i=$z->find('withtag', 'current'); + my @tags = $z->gettags($i); + pop @tags; # pour enlever 'current' + print "$i (", $z->type($i), ") [@tags] +";}] ); + +&Tk::MainLoop; + + +##### bindings for moving, rotating, scaling the items +my ($cur_x, $cur_y, $cur_angle); +sub press { + my ($zinc, $action) = @_; + my $ev = $zinc->XEvent(); + $cur_x = $ev->x; + $cur_y = $ev->y; + $cur_angle = atan2($cur_y, $cur_x); + $zinc->Tk::bind('<Motion>', [$action]); +} + +sub motion { + my ($zinc) = @_; + my $ev = $zinc->XEvent(); + my $lx = $ev->x; + my $ly = $ev->y; + my @res = $zinc->transform($top_group, [$lx, $ly, $cur_x, $cur_y]); + $zinc->translate($top_group, $res[0] - $res[2], $res[1] - $res[3]); + $cur_x = $lx; + $cur_y = $ly; +} + +sub zoom { + my ($zinc, $self) = @_; + my $ev = $zinc->XEvent(); + my $lx = $ev->x; + my $ly = $ev->y; + my $maxx; + my $maxy; + my $sx; + my $sy; + + if ($lx > $cur_x) { + $maxx = $lx; + } else { + $maxx = $cur_x; + } + if ($ly > $cur_y) { + $maxy = $ly + } else { + $maxy = $cur_y; + } + return if ($maxx == 0 || $maxy == 0); + $sx = 1.0 + ($lx - $cur_x)/$maxx; + $sy = 1.0 + ($ly - $cur_y)/$maxy; + $cur_x = $lx; + $cur_y = $ly; + $zinc->scale($top_group, $sx, $sx); #$sy); +} + +sub mouseRotate { + my ($zinc) = @_; + my $ev = $zinc->XEvent(); + my $lx = $ev->x; + my $ly = $ev->y; + my $langle = atan2($ly, $lx); + $zinc->rotate($top_group, -($langle - $cur_angle)); + $cur_angle = $langle; +} + +sub release { + my ($zinc) = @_; + $zinc->Tk::bind('<Motion>', ''); +} diff --git a/Perl/demos/zinc-demos b/Perl/demos/zinc-demos index 8d0c5e1..f1d58ed 100644 --- a/Perl/demos/zinc-demos +++ b/Perl/demos/zinc-demos @@ -156,6 +156,7 @@ $T->insert('end', "3. Examples of line style and line termination.\n", [qw/demo $T->insert('end', "4. Curves with multiple contours.\n", [qw/demo demo-contours/]); $T->insert('end', "5. Examples of labelformat.\n", [qw/demo demo-labelformat/]); $T->insert('end', "6. Use of mapinfos.\n", [qw/demo demo-mapinfo/]); +$T->insert('end', "7. Example of curves with cubic bezier control points.\n", [qw/demo demo-curve_bezier/]); $T->insert('end', "\n", '', "Groups, Priority and Clipping\n", 'title'); |