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Slic3r
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Implement zoom to point

xs
Guillaume Seguin 2013-06-29 14:16:56 +02:00
parent 317c911c67
commit 43d764feff
1 changed files with 43 additions and 10 deletions
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53
lib/Slic3r/GUI/PreviewCanvas.pm
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@ -4,7 +4,7 @@ use warnings;
use Wx::Event qw(EVT_PAINT EVT_SIZE EVT_ERASE_BACKGROUND EVT_IDLE EVT_TIMER EVT_MOUSEWHEEL);
# must load OpenGL *before* Wx::GLCanvas
use OpenGL qw(:glconstants :glfunctions);
use OpenGL qw(:glconstants :glfunctions :glufunctions);
use base qw(Wx::GLCanvas Class::Accessor);
use Slic3r::Geometry qw(X Y Z MIN MAX triangle_normal normalize deg2rad tan);
use Wx::GLCanvas qw(:all);
@ -19,9 +19,8 @@ sub new {
# prepare mesh
{
$self->mesh_center($mesh->center);
$self->zoom(0.1);
my @verts = map $self->zoom * $_, map @{ $mesh->vertices->[$_] }, map @$_, @{$mesh->facets};
my @verts = map @{ $mesh->vertices->[$_] }, map @$_, @{$mesh->facets};
$self->verts(OpenGL::Array->new_list(GL_FLOAT, @verts));
my @norms = map { @$_, @$_, @$_ } map normalize(triangle_normal(map $mesh->vertices->[$_], @$_)), @{$mesh->facets};
@ -45,17 +44,52 @@ sub new {
EVT_MOUSEWHEEL($self, sub {
my ($self, $e) = @_;
my $zoom = $self->zoom * (1.0 - $e->GetWheelRotation() / $e->GetWheelDelta() / 10);
$zoom = 0.001 if $zoom < 0.001;
$zoom = 0.1 if $zoom > 0.1;
$self->zoom($zoom);
my $zoom = ($e->GetWheelRotation() / $e->GetWheelDelta() / 10);
$zoom = $zoom > 0 ? (1.0 + $zoom) : 1 / (1.0 - $zoom);
my @pos3d = $self->mouse_to_3d($e->GetX(), $e->GetY());
$self->ZoomTo($zoom, $pos3d[0], $pos3d[1]);
$self->Refresh;
});
return $self;
}
sub mouse_to_3d {
my ($self, $x, $y) = @_;
my @viewport = glGetIntegerv_p(GL_VIEWPORT);
my @mview = glGetDoublev_p(GL_MODELVIEW_MATRIX);
my @proj = glGetDoublev_p(GL_PROJECTION_MATRIX);
my @projected = gluUnProject_p($x, $viewport[3] - $y, 1.0,
$mview[0], $mview[1], $mview[2], $mview[3],
$mview[4], $mview[5], $mview[6], $mview[7],
$mview[8], $mview[9], $mview[10], $mview[11],
$mview[12], $mview[13], $mview[14], $mview[15],
$proj[0], $proj[1], $proj[2], $proj[3],
$proj[4], $proj[5], $proj[6], $proj[7],
$proj[8], $proj[9], $proj[10], $proj[11],
$proj[12], $proj[13], $proj[14], $proj[15],
$viewport[0], $viewport[1], $viewport[2], $viewport[3]);
return @projected;
}
sub ZoomTo {
my ($self, $factor, $tox, $toy) = @_;
glTranslatef($tox, $toy, 0);
glMatrixMode(GL_MODELVIEW);
$self->Zoom($factor);
glTranslatef(-$tox, -$toy, 0);
}
sub Zoom {
my ($self, $factor) = @_;
glScalef($factor, $factor, 1);
}
sub GetContext {
my ($self) = @_;
@ -139,12 +173,11 @@ sub Render {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glTranslatef( 0, 0, -5 );
# this needs to get a lot better...
glRotatef( $self->x_rot, 1, 0, 0 );
glRotatef( $self->y_rot, 0, 0, 1 );
glTranslatef(map -$_ * $self->zoom, @{ $self->mesh_center });
glTranslatef(map -$_, @{ $self->mesh_center });
$self->draw_mesh;