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Bugfix handle rotation

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brunoherbelin
2021-01-02 13:59:21 +01:00
parent b1dd2f0bc9
commit 805baa75f4
1 changed files with 15 additions and 8 deletions
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23
PickingVisitor.cpp
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@@ -126,6 +126,13 @@ void PickingVisitor::visit(Handles &n)
glm::vec4 S = glm::inverse(modelview_) * glm::vec4( 0.05f, 0.05f, 0.f, 0.f );
float scale = glm::length( glm::vec2(S) );
// extract rotation from modelview
glm::mat4 ctm;
glm::vec3 rot(0.f);
glm::vec4 vec = modelview_ * glm::vec4(1.f, 0.f, 0.f, 0.f);
rot.z = glm::orientedAngle( glm::vec3(1.f, 0.f, 0.f), glm::normalize(glm::vec3(vec)), glm::vec3(0.f, 0.f, 1.f) );
ctm = glm::rotate(glm::identity<glm::mat4>(), -rot.z, glm::vec3(0.f, 0.f, 1.f)) * modelview_ ;
bool picked = false;
if ( n.type() == Handles::RESIZE ) {
// 4 corners
@@ -146,23 +153,23 @@ void PickingVisitor::visit(Handles &n)
}
else if ( n.type() == Handles::ROTATE ){
// the icon for rotation is on the right top corner at (0.12, 0.12) in scene coordinates
glm::vec4 vec = glm::inverse(modelview_) * glm::vec4( 0.12f, 0.12f, 0.f, 0.f );
picked = glm::length( glm::vec2( 1.f, 1.f) + glm::vec2(vec) - glm::vec2(P) ) < 1.5f * scale;
glm::vec4 pos = glm::inverse(ctm) * glm::vec4( 0.12f, 0.12f, 0.f, 0.f );
picked = glm::length( glm::vec2( 1.f, 1.f) + glm::vec2(pos) - glm::vec2(P) ) < 1.5f * scale;
}
else if ( n.type() == Handles::SCALE ){
// the icon for scaling is on the right bottom corner at (0.12, -0.12) in scene coordinates
glm::vec4 vec = glm::inverse(modelview_) * glm::vec4( 0.12f, -0.12f, 0.f, 0.f );
picked = glm::length( glm::vec2( 1.f, -1.f) + glm::vec2(vec) - glm::vec2(P) ) < 1.5f * scale;
glm::vec4 pos = glm::inverse(ctm) * glm::vec4( 0.12f, -0.12f, 0.f, 0.f );
picked = glm::length( glm::vec2( 1.f, -1.f) + glm::vec2(pos) - glm::vec2(P) ) < 1.5f * scale;
}
else if ( n.type() == Handles::CROP ){
// the icon for cropping is on the left bottom corner at (0.12, 0.12) in scene coordinates
glm::vec4 vec = glm::inverse(modelview_) * glm::vec4( 0.12f, 0.12f, 0.f, 0.f );
picked = glm::length( glm::vec2( -1.f, -1.f) + glm::vec2(vec) - glm::vec2(P) ) < 1.5f * scale;
glm::vec4 pos = glm::inverse(ctm) * glm::vec4( 0.12f, 0.12f, 0.f, 0.f );
picked = glm::length( glm::vec2( -1.f, -1.f) + glm::vec2(pos) - glm::vec2(P) ) < 1.5f * scale;
}
else if ( n.type() == Handles::MENU ){
// the icon for restore is on the left top corner at (-0.12, 0.12) in scene coordinates
glm::vec4 vec = glm::inverse(modelview_) * glm::vec4( -0.12f, 0.12f, 0.f, 0.f );
picked = glm::length( glm::vec2( -1.f, 1.f) + glm::vec2(vec) - glm::vec2(P) ) < 1.5f * scale;
glm::vec4 pos = glm::inverse(ctm) * glm::vec4( -0.12f, 0.12f, 0.f, 0.f );
picked = glm::length( glm::vec2( -1.f, 1.f) + glm::vec2(pos) - glm::vec2(P) ) < 1.5f * scale;
}
if ( picked )